Pharmacology

The Food and Drug Administration has granted accelerated approval for pembrolizumab (Keytruda) in combination with chemotherapy to treat locally recurrent unresectable or metastatic triple-negative breast cancer (TNBC) that expresses PD-L1, as determined by a combined positive score of 10 or greater on an FDA-approved assay.

The FDA also approved a PD-L1 assay for selecting TNBC patients for pembrolizumab, the PD-L1 IHC 22C3 pharmDx.

Pembrolizumab is approved for numerous indications in the United States, but the new approval is its first breast cancer indication.

The accelerated approval for pembrolizumab in TNBC was based on progression-free survival (PFS) in the KEYNOTE-355 trial. The FDA noted that continued approval of pembrolizumab in TNBC “may be contingent upon verification and description of clinical benefit in the confirmatory trials.”

KEYNOTE-355 enrolled patients with locally recurrent unresectable or metastatic TNBC who had not received chemotherapy in the metastatic setting. Patients were randomized to chemotherapy (nab-paclitaxel, paclitaxel, or gemcitabine plus carboplatin) plus placebo (n = 281) or chemotherapy plus pembrolizumab at 200 mg on day 1 every 3 weeks (n = 562).

Among PD-L1-positive patients (n = 323), the median PFS was 5.6 months in the placebo arm and 9.7 months in the pembrolizumab arm (hazard ratio, 0.65; P = .0012).

The recommended pembrolizumab dose in TNBC is 200 mg every 3 weeks or 400 mg every 6 weeks administered prior to chemotherapy until disease progression, unacceptable toxicity, or up to 24 months.

Pembrolizumab can cause immune-mediated adverse reactions that may be severe or fatal, according to Merck, the manufacturer of pembrolizumab. These adverse reactions include pneumonitis, colitis, hepatitis, endocrinopathies, nephritis, severe skin reactions, solid organ transplant rejection, and complications of allogeneic hematopoietic stem cell transplant.

“Based on the severity of the adverse reaction, [pembrolizumab] should be withheld or discontinued and corticosteroids administered if appropriate,” the company noted.

For more details on pembrolizumab, see the full prescribing information.

[email protected]

The Food and Drug Administration has granted accelerated approval for pembrolizumab (Keytruda) in combination with chemotherapy to treat locally recurrent unresectable or metastatic triple-negative breast cancer (TNBC) that expresses PD-L1, as determined by a combined positive score of 10 or greater on an FDA-approved assay.

The FDA also approved a PD-L1 assay for selecting TNBC patients for pembrolizumab, the PD-L1 IHC 22C3 pharmDx.

Pembrolizumab is approved for numerous indications in the United States, but the new approval is its first breast cancer indication.

The accelerated approval for pembrolizumab in TNBC was based on progression-free survival (PFS) in the KEYNOTE-355 trial. The FDA noted that continued approval of pembrolizumab in TNBC “may be contingent upon verification and description of clinical benefit in the confirmatory trials.”

KEYNOTE-355 enrolled patients with locally recurrent unresectable or metastatic TNBC who had not received chemotherapy in the metastatic setting. Patients were randomized to chemotherapy (nab-paclitaxel, paclitaxel, or gemcitabine plus carboplatin) plus placebo (n = 281) or chemotherapy plus pembrolizumab at 200 mg on day 1 every 3 weeks (n = 562).

Among PD-L1-positive patients (n = 323), the median PFS was 5.6 months in the placebo arm and 9.7 months in the pembrolizumab arm (hazard ratio, 0.65; P = .0012).

The recommended pembrolizumab dose in TNBC is 200 mg every 3 weeks or 400 mg every 6 weeks administered prior to chemotherapy until disease progression, unacceptable toxicity, or up to 24 months.

Pembrolizumab can cause immune-mediated adverse reactions that may be severe or fatal, according to Merck, the manufacturer of pembrolizumab. These adverse reactions include pneumonitis, colitis, hepatitis, endocrinopathies, nephritis, severe skin reactions, solid organ transplant rejection, and complications of allogeneic hematopoietic stem cell transplant.

“Based on the severity of the adverse reaction, [pembrolizumab] should be withheld or discontinued and corticosteroids administered if appropriate,” the company noted.

For more details on pembrolizumab, see the full prescribing information.

[email protected]

The Food and Drug Administration has granted accelerated approval for pembrolizumab (Keytruda) in combination with chemotherapy to treat locally recurrent unresectable or metastatic triple-negative breast cancer (TNBC) that expresses PD-L1, as determined by a combined positive score of 10 or greater on an FDA-approved assay.

The FDA also approved a PD-L1 assay for selecting TNBC patients for pembrolizumab, the PD-L1 IHC 22C3 pharmDx.

Pembrolizumab is approved for numerous indications in the United States, but the new approval is its first breast cancer indication.

The accelerated approval for pembrolizumab in TNBC was based on progression-free survival (PFS) in the KEYNOTE-355 trial. The FDA noted that continued approval of pembrolizumab in TNBC “may be contingent upon verification and description of clinical benefit in the confirmatory trials.”

KEYNOTE-355 enrolled patients with locally recurrent unresectable or metastatic TNBC who had not received chemotherapy in the metastatic setting. Patients were randomized to chemotherapy (nab-paclitaxel, paclitaxel, or gemcitabine plus carboplatin) plus placebo (n = 281) or chemotherapy plus pembrolizumab at 200 mg on day 1 every 3 weeks (n = 562).

Among PD-L1-positive patients (n = 323), the median PFS was 5.6 months in the placebo arm and 9.7 months in the pembrolizumab arm (hazard ratio, 0.65; P = .0012).

The recommended pembrolizumab dose in TNBC is 200 mg every 3 weeks or 400 mg every 6 weeks administered prior to chemotherapy until disease progression, unacceptable toxicity, or up to 24 months.

Pembrolizumab can cause immune-mediated adverse reactions that may be severe or fatal, according to Merck, the manufacturer of pembrolizumab. These adverse reactions include pneumonitis, colitis, hepatitis, endocrinopathies, nephritis, severe skin reactions, solid organ transplant rejection, and complications of allogeneic hematopoietic stem cell transplant.

“Based on the severity of the adverse reaction, [pembrolizumab] should be withheld or discontinued and corticosteroids administered if appropriate,” the company noted.

For more details on pembrolizumab, see the full prescribing information.

[email protected]

Iron supplementation reduces heart failure (HF) readmissions in iron-deficient patients hospitalized for acute HF, according to results of the AFFIRM-AHF trial.

After 52 weeks, intravenous ferric carboxymaltose (Ferinject) reduced the risk of total HF hospitalizations and cardiovascular (CV) death by 21% compared with placebo (293 vs 372 events; rate ratio [RR] 0.79; 95% CI, 0.62 - 1.01).

Although the composite primary endpoint failed to achieve statistical significance, it was driven by a significant 26% reduction in the risk of total HF hospital readmissions (P = .013) without an effect on CV mortality (P =.809).

Because the management and follow-up of patients was affected by the COVID-19 pandemic, a prespecified sensitivity analysis was performed that censored patients in each country at the date when its first COVID-19 patient was reported, explained principal investigator Piotr Ponikowski, MD, PhD, Wroclaw Medical University, Wroclaw, Poland.

That analysis revealed a significant 30% reduction in total HF readmissions (P = .005) in patients receiving ferric carboxymaltose (FCM), as well as significant benefits on the primary composite and secondary endpoints.

Notably, 80% of patients required only one or two injections and HF hospitalizations were reduced irrespective of anemia status.

“Iron deficiency should be searched in patients hospitalized with acute heart failure — assessed using a simple blood test — and is now an important therapeutic target,” Ponikowski said at the virtual American Heart Association (AHA) Scientific Sessions 2020.

The results were also published simultaneously in The Lancet.

Iron deficiency is present in up to 70% of patients with acute HF and a predictor of poor outcome, independent of anemia and ejection fraction, he noted.

The FAIR-HF, CONFIRM-HF, and EFFECT-HF trials demonstrated that IV iron supplementation improves exercise capacity, symptoms, and quality of life in iron-deficient HF patients.

The study was sponsored by Vifor International. Ponikowski has received research grants and personal fees from Vifor Pharma; and personal fees from Amgen, Bayer, Novartis, Abbott Vascular, Boehringer Ingelheim, Merck, Pfizer, Servier, AstraZeneca, Berlin Chemie, Cibiem, Renal Guard Solutions Bristol-Myers Squibb, and Impulse Dynamics.

Pfeffer reported honoraria from AstraZeneca, Corvidia, GlaxoSmithKline, Jazz, MyoKardia, Novartis, Roche, Sanofi, and Servier; other relationships with DalCor and Novo Nordisk; research grants from Novartis; and an ownership interest in DalCor. Sweitzer reported research payments from Merck and Novartis; and consulting fees from Myocardia.

McMurray reported relationships with Amgen, AstraZeneca, Bayer, Boehringer Ingelheim, Cytokinetics, Novartis, and Servier. Yancy reported a relationship with Abbott and JAMA Network.

Lancet. Published online November 13, 2020. Full text


American Heart Association Scientific Sessions 2020: Presented November 13, 2020.


A version of this article originally appeared on Medscape.com.

Iron supplementation reduces heart failure (HF) readmissions in iron-deficient patients hospitalized for acute HF, according to results of the AFFIRM-AHF trial.

After 52 weeks, intravenous ferric carboxymaltose (Ferinject) reduced the risk of total HF hospitalizations and cardiovascular (CV) death by 21% compared with placebo (293 vs 372 events; rate ratio [RR] 0.79; 95% CI, 0.62 - 1.01).

Although the composite primary endpoint failed to achieve statistical significance, it was driven by a significant 26% reduction in the risk of total HF hospital readmissions (P = .013) without an effect on CV mortality (P =.809).

Because the management and follow-up of patients was affected by the COVID-19 pandemic, a prespecified sensitivity analysis was performed that censored patients in each country at the date when its first COVID-19 patient was reported, explained principal investigator Piotr Ponikowski, MD, PhD, Wroclaw Medical University, Wroclaw, Poland.

That analysis revealed a significant 30% reduction in total HF readmissions (P = .005) in patients receiving ferric carboxymaltose (FCM), as well as significant benefits on the primary composite and secondary endpoints.

Notably, 80% of patients required only one or two injections and HF hospitalizations were reduced irrespective of anemia status.

“Iron deficiency should be searched in patients hospitalized with acute heart failure — assessed using a simple blood test — and is now an important therapeutic target,” Ponikowski said at the virtual American Heart Association (AHA) Scientific Sessions 2020.

The results were also published simultaneously in The Lancet.

Iron deficiency is present in up to 70% of patients with acute HF and a predictor of poor outcome, independent of anemia and ejection fraction, he noted.

The FAIR-HF, CONFIRM-HF, and EFFECT-HF trials demonstrated that IV iron supplementation improves exercise capacity, symptoms, and quality of life in iron-deficient HF patients.

The study was sponsored by Vifor International. Ponikowski has received research grants and personal fees from Vifor Pharma; and personal fees from Amgen, Bayer, Novartis, Abbott Vascular, Boehringer Ingelheim, Merck, Pfizer, Servier, AstraZeneca, Berlin Chemie, Cibiem, Renal Guard Solutions Bristol-Myers Squibb, and Impulse Dynamics.

Pfeffer reported honoraria from AstraZeneca, Corvidia, GlaxoSmithKline, Jazz, MyoKardia, Novartis, Roche, Sanofi, and Servier; other relationships with DalCor and Novo Nordisk; research grants from Novartis; and an ownership interest in DalCor. Sweitzer reported research payments from Merck and Novartis; and consulting fees from Myocardia.

McMurray reported relationships with Amgen, AstraZeneca, Bayer, Boehringer Ingelheim, Cytokinetics, Novartis, and Servier. Yancy reported a relationship with Abbott and JAMA Network.

Lancet. Published online November 13, 2020. Full text


American Heart Association Scientific Sessions 2020: Presented November 13, 2020.


A version of this article originally appeared on Medscape.com.

Iron supplementation reduces heart failure (HF) readmissions in iron-deficient patients hospitalized for acute HF, according to results of the AFFIRM-AHF trial.

After 52 weeks, intravenous ferric carboxymaltose (Ferinject) reduced the risk of total HF hospitalizations and cardiovascular (CV) death by 21% compared with placebo (293 vs 372 events; rate ratio [RR] 0.79; 95% CI, 0.62 - 1.01).

Although the composite primary endpoint failed to achieve statistical significance, it was driven by a significant 26% reduction in the risk of total HF hospital readmissions (P = .013) without an effect on CV mortality (P =.809).

Because the management and follow-up of patients was affected by the COVID-19 pandemic, a prespecified sensitivity analysis was performed that censored patients in each country at the date when its first COVID-19 patient was reported, explained principal investigator Piotr Ponikowski, MD, PhD, Wroclaw Medical University, Wroclaw, Poland.

That analysis revealed a significant 30% reduction in total HF readmissions (P = .005) in patients receiving ferric carboxymaltose (FCM), as well as significant benefits on the primary composite and secondary endpoints.

Notably, 80% of patients required only one or two injections and HF hospitalizations were reduced irrespective of anemia status.

“Iron deficiency should be searched in patients hospitalized with acute heart failure — assessed using a simple blood test — and is now an important therapeutic target,” Ponikowski said at the virtual American Heart Association (AHA) Scientific Sessions 2020.

The results were also published simultaneously in The Lancet.

Iron deficiency is present in up to 70% of patients with acute HF and a predictor of poor outcome, independent of anemia and ejection fraction, he noted.

The FAIR-HF, CONFIRM-HF, and EFFECT-HF trials demonstrated that IV iron supplementation improves exercise capacity, symptoms, and quality of life in iron-deficient HF patients.

The study was sponsored by Vifor International. Ponikowski has received research grants and personal fees from Vifor Pharma; and personal fees from Amgen, Bayer, Novartis, Abbott Vascular, Boehringer Ingelheim, Merck, Pfizer, Servier, AstraZeneca, Berlin Chemie, Cibiem, Renal Guard Solutions Bristol-Myers Squibb, and Impulse Dynamics.

Pfeffer reported honoraria from AstraZeneca, Corvidia, GlaxoSmithKline, Jazz, MyoKardia, Novartis, Roche, Sanofi, and Servier; other relationships with DalCor and Novo Nordisk; research grants from Novartis; and an ownership interest in DalCor. Sweitzer reported research payments from Merck and Novartis; and consulting fees from Myocardia.

McMurray reported relationships with Amgen, AstraZeneca, Bayer, Boehringer Ingelheim, Cytokinetics, Novartis, and Servier. Yancy reported a relationship with Abbott and JAMA Network.

Lancet. Published online November 13, 2020. Full text


American Heart Association Scientific Sessions 2020: Presented November 13, 2020.


A version of this article originally appeared on Medscape.com.

"The writing is on the wall” that virtual care is not meeting the needs of people with HIV who struggled with viral suppression even before the COVID-19 pandemic, said Jason Farley, PhD, ANP-BC, AACRN, associate professor of nursing at Johns Hopkins University, Baltimore. So it’s time for HIV care teams, especially clinics in the Ryan White HIV/AIDS Program, to get creative in bringing wraparound services to patients.

That may mean reallocating the workforce so that one person serves as a community health worker. Or it could mean increasing texts and video calls; helping patients find online support groups to address problems with alcohol or drug use; and conducting an overall assessment of patients’ needs as the pandemic continues.

“The virtual patient-centered medical home may be the new normal after COVID-19, and we have to be thinking about how we use this model with patients for whom it works, but supplement this model in patients that it does not,” Farley said at the virtual Association of Nurses in AIDS Care (ANAC) 2020 Annual Meeting. That work “is essential to our being able to facilitate the best patient outcomes possible.”
 

Early data, tiered interventions

Farley referred to an article published in September in the Journal AIDS that confirmed unpublished data mentioned at the International AIDS Conference 2020. The article reported that viral suppression rates among people with HIV who attended San Francisco’s Ward 86 HIV clinic dropped by 31% from pre-COVID levels.

Of the 1766 people who attended the clinic, about 1 in 5 had detectable HIV viral loads at any point in 2019. But that rate was 31% higher after shelter-in-place orders were issued. And although patients participated in telemedicine visits at more or less the same rate before and after the pandemic (31% vs. 30% no-shows), viral suppression rates dropped. The impact was especially acute for homeless individuals.

“This destabilization occurred despite our population attending telemedicine visits at a higher rate than expected, given the 60% drop in ambulatory care visit volume nationwide,” the authors stated in their article. “Telehealth visits, while offering greater patient convenience, may lead to less access to clinic-based social support services essential to achieving viral suppression among vulnerable groups.”

That’s the challenge HIV clinics now face, Farley said at the ANAC meeting.

He suggested a differentiated care approach in which there are four tiers of care, starting with the standard level of outreach, which may include email, electronic health record blasts, and robo-calls to remind people of their appointments and to refill their medications. Those with sustained viral suppression may only need 90-day automatic refills of their medications. Those who are vulnerable to nonadherence may need to be contacted weekly or more often by the clinic. Such contact could be made by a social worker, a community health worker, or through some form of virtual support.

Patients at tier 4, who have labile viral suppression, need far more than that. These are the 15% of patients with HIV who struggled with viral suppression before the pandemic. They are the patients that Farley’s team focuses on at Baltimore’s John G. Bartlett Specialty Clinic for Infectious Disease.

“We’ve completely deconstructed the patient-centered medical home,” he said of the early move to virtual care. He suggested that clinicians assess their services and ask themselves some questions:

• Has someone on the team reached out to every patient and checked in to see what their biggest needs are, medical or not, during the pandemic? Have they assessed the patient’s ability to receive video calls or text messages?
• How have group-support programs that address stigma or the social determinants of health fared in the transition to virtual medicine?
• Are patients who are in recovery being supported in order that they may engage with recovery programs online?
• How well have counseling services done in engaging people in virtual care? Currently, given the overall increase in mental health challenges during the pandemic, one would expect that the use of mental health counseling is increasing. “If they’re stagnant or going down, someone needs to be reflecting on that issue internally in the clinic,” he said.
• Are patients being contacted regarding the effects that isolation is having on their lives? “The things that would normally allow us to self-mitigate and self-manage these conditions, like going to the gym, meeting with friends, religious services – all of those are being cut,” he said.
• Is there an early alert from an in-person pharmacy to trigger outreach via a community health worker for patients who haven’t picked up their medications in a week or more?

Farley pointed to a 2015 model for an enhanced e-health approach to chronic care management that called for e-support from the community and that was enhanced through virtual communities.

These are some of the approaches Farley has taken at his clinic. He leads a team that focuses specifically on patients who struggled with engagement before the pandemic. Through a grant from the US Department of Health & Human Services’ Health Resources and Services Administration – even before the pandemic – that team has been funding community health workers who have multiple contacts with patients online and virtually and are able to offer what he calls “unapologetically enabling” support for patients so that they are able to focus on their health.

He gave the following example. Before the pandemic, a community health worker on the team had been working with a patient who showed up at every scheduled visit and swore that she was taking her medications, although clearly she was not. A community health worker, who was made available through the grant, was able to recognize that the patient’s biggest challenge in her life was providing childcare for her special-needs child. The community health worker worked with the patient for months to find stable childcare for the child, paid 2 months of rent for the patient so that she would not become homeless, and helped her find transitional housing. When the pandemic hit, the community health worker was already texting and conducting video calls with the patient regularly.

For the past 9 months, that patient has had an undetectable viral load, Farley said.

“Nine months during a pandemic,” Farley reiterated, “and the community health worker keeps working with her, keeps meeting with her.”
 

Stigma on stigma

The need for this level of support from the clinic may be even more important for people with HIV who acquire COVID-19, said Orlando Harris, PhD, assistant professor of community health systems at the University of California, San Francisco, (UCSF) School of Nursing. HIV-related stigma is a well-known deterrent to care for people living with the virus. During the presentation, Harris asked Farley about the impact of COVID-19 stigma on people with both HIV and COVID-19.

Farley said that patients at his clinic have told him that they have “ostracized” friends who have tested positive for COVID-19. Harris remembered a person with HIV who participated in one of his trials telling the researchers that despite all his precautions – wearing a mask, staying socially distant – he still acquired COVID-19. There was nothing he could have done, Harris said, other than just not go to the grocery store.

The fear of contracting another disease that is associated with stigma, as well as the need to disclose it, can inflame memories of the trauma of being diagnosed with HIV, Harris said. And with patient-centered medical homes struggling to reconstitute their wraparound services via telehealth, he said he wonders whether clinicians should be doing more.

“I worry about people who have survived being diagnosed with HIV in the ‘80s and the ‘90s before antiretroviral therapy showed up on the scene,” he told Medscape Medical News. “I worry that the folks that survived one pandemic [may] be feeling fearful or living in that fear that this new pandemic might take them out. That’s why I’m stressing the need for us to really consider, as clinicians and also as researchers the support systems, the coping mechanisms, the counseling, or what have you to support those living with HIV and vulnerable to COVID-19.”

During telehealth visits, that can be achieved simply by asking people how they are really doing and what their coping mechanisms are.

For their part, the clinicians at San Francisco’s Ward 86 are not trying to provide that support through telehealth on the same level as they were at the beginning of the pandemic, said Matthew Spinelli, MD, assistant professor of medicine, and Monica Gandhi, MD, associate chief of the Division of HIV, Infectious Diseases and Global Medicine, who are both at UCSF and are coauthors of the study.

They still offer telemedicine appointments to patients who request them, said Spinelli. He said about one-third of his patients still prefer to receive their care virtually. The rest have gone back to face-to-face support.

“The analysis led us to promptly open up care as much as possible to our patients, with the idea that telehealth is not cutting it for vulnerable patients with HIV,” Gandhi told Medscape Medical News via email. “We don’t think it’s right for a population who relies on social support from the clinic.”
 

This article first appeared on Medscape.com.

"The writing is on the wall” that virtual care is not meeting the needs of people with HIV who struggled with viral suppression even before the COVID-19 pandemic, said Jason Farley, PhD, ANP-BC, AACRN, associate professor of nursing at Johns Hopkins University, Baltimore. So it’s time for HIV care teams, especially clinics in the Ryan White HIV/AIDS Program, to get creative in bringing wraparound services to patients.

That may mean reallocating the workforce so that one person serves as a community health worker. Or it could mean increasing texts and video calls; helping patients find online support groups to address problems with alcohol or drug use; and conducting an overall assessment of patients’ needs as the pandemic continues.

“The virtual patient-centered medical home may be the new normal after COVID-19, and we have to be thinking about how we use this model with patients for whom it works, but supplement this model in patients that it does not,” Farley said at the virtual Association of Nurses in AIDS Care (ANAC) 2020 Annual Meeting. That work “is essential to our being able to facilitate the best patient outcomes possible.”
 

Early data, tiered interventions

Farley referred to an article published in September in the Journal AIDS that confirmed unpublished data mentioned at the International AIDS Conference 2020. The article reported that viral suppression rates among people with HIV who attended San Francisco’s Ward 86 HIV clinic dropped by 31% from pre-COVID levels.

Of the 1766 people who attended the clinic, about 1 in 5 had detectable HIV viral loads at any point in 2019. But that rate was 31% higher after shelter-in-place orders were issued. And although patients participated in telemedicine visits at more or less the same rate before and after the pandemic (31% vs. 30% no-shows), viral suppression rates dropped. The impact was especially acute for homeless individuals.

“This destabilization occurred despite our population attending telemedicine visits at a higher rate than expected, given the 60% drop in ambulatory care visit volume nationwide,” the authors stated in their article. “Telehealth visits, while offering greater patient convenience, may lead to less access to clinic-based social support services essential to achieving viral suppression among vulnerable groups.”

That’s the challenge HIV clinics now face, Farley said at the ANAC meeting.

He suggested a differentiated care approach in which there are four tiers of care, starting with the standard level of outreach, which may include email, electronic health record blasts, and robo-calls to remind people of their appointments and to refill their medications. Those with sustained viral suppression may only need 90-day automatic refills of their medications. Those who are vulnerable to nonadherence may need to be contacted weekly or more often by the clinic. Such contact could be made by a social worker, a community health worker, or through some form of virtual support.

Patients at tier 4, who have labile viral suppression, need far more than that. These are the 15% of patients with HIV who struggled with viral suppression before the pandemic. They are the patients that Farley’s team focuses on at Baltimore’s John G. Bartlett Specialty Clinic for Infectious Disease.

“We’ve completely deconstructed the patient-centered medical home,” he said of the early move to virtual care. He suggested that clinicians assess their services and ask themselves some questions:

• Has someone on the team reached out to every patient and checked in to see what their biggest needs are, medical or not, during the pandemic? Have they assessed the patient’s ability to receive video calls or text messages?
• How have group-support programs that address stigma or the social determinants of health fared in the transition to virtual medicine?
• Are patients who are in recovery being supported in order that they may engage with recovery programs online?
• How well have counseling services done in engaging people in virtual care? Currently, given the overall increase in mental health challenges during the pandemic, one would expect that the use of mental health counseling is increasing. “If they’re stagnant or going down, someone needs to be reflecting on that issue internally in the clinic,” he said.
• Are patients being contacted regarding the effects that isolation is having on their lives? “The things that would normally allow us to self-mitigate and self-manage these conditions, like going to the gym, meeting with friends, religious services – all of those are being cut,” he said.
• Is there an early alert from an in-person pharmacy to trigger outreach via a community health worker for patients who haven’t picked up their medications in a week or more?

Farley pointed to a 2015 model for an enhanced e-health approach to chronic care management that called for e-support from the community and that was enhanced through virtual communities.

These are some of the approaches Farley has taken at his clinic. He leads a team that focuses specifically on patients who struggled with engagement before the pandemic. Through a grant from the US Department of Health & Human Services’ Health Resources and Services Administration – even before the pandemic – that team has been funding community health workers who have multiple contacts with patients online and virtually and are able to offer what he calls “unapologetically enabling” support for patients so that they are able to focus on their health.

He gave the following example. Before the pandemic, a community health worker on the team had been working with a patient who showed up at every scheduled visit and swore that she was taking her medications, although clearly she was not. A community health worker, who was made available through the grant, was able to recognize that the patient’s biggest challenge in her life was providing childcare for her special-needs child. The community health worker worked with the patient for months to find stable childcare for the child, paid 2 months of rent for the patient so that she would not become homeless, and helped her find transitional housing. When the pandemic hit, the community health worker was already texting and conducting video calls with the patient regularly.

For the past 9 months, that patient has had an undetectable viral load, Farley said.

“Nine months during a pandemic,” Farley reiterated, “and the community health worker keeps working with her, keeps meeting with her.”
 

Stigma on stigma

The need for this level of support from the clinic may be even more important for people with HIV who acquire COVID-19, said Orlando Harris, PhD, assistant professor of community health systems at the University of California, San Francisco, (UCSF) School of Nursing. HIV-related stigma is a well-known deterrent to care for people living with the virus. During the presentation, Harris asked Farley about the impact of COVID-19 stigma on people with both HIV and COVID-19.

Farley said that patients at his clinic have told him that they have “ostracized” friends who have tested positive for COVID-19. Harris remembered a person with HIV who participated in one of his trials telling the researchers that despite all his precautions – wearing a mask, staying socially distant – he still acquired COVID-19. There was nothing he could have done, Harris said, other than just not go to the grocery store.

The fear of contracting another disease that is associated with stigma, as well as the need to disclose it, can inflame memories of the trauma of being diagnosed with HIV, Harris said. And with patient-centered medical homes struggling to reconstitute their wraparound services via telehealth, he said he wonders whether clinicians should be doing more.

“I worry about people who have survived being diagnosed with HIV in the ‘80s and the ‘90s before antiretroviral therapy showed up on the scene,” he told Medscape Medical News. “I worry that the folks that survived one pandemic [may] be feeling fearful or living in that fear that this new pandemic might take them out. That’s why I’m stressing the need for us to really consider, as clinicians and also as researchers the support systems, the coping mechanisms, the counseling, or what have you to support those living with HIV and vulnerable to COVID-19.”

During telehealth visits, that can be achieved simply by asking people how they are really doing and what their coping mechanisms are.

For their part, the clinicians at San Francisco’s Ward 86 are not trying to provide that support through telehealth on the same level as they were at the beginning of the pandemic, said Matthew Spinelli, MD, assistant professor of medicine, and Monica Gandhi, MD, associate chief of the Division of HIV, Infectious Diseases and Global Medicine, who are both at UCSF and are coauthors of the study.

They still offer telemedicine appointments to patients who request them, said Spinelli. He said about one-third of his patients still prefer to receive their care virtually. The rest have gone back to face-to-face support.

“The analysis led us to promptly open up care as much as possible to our patients, with the idea that telehealth is not cutting it for vulnerable patients with HIV,” Gandhi told Medscape Medical News via email. “We don’t think it’s right for a population who relies on social support from the clinic.”
 

This article first appeared on Medscape.com.

"The writing is on the wall” that virtual care is not meeting the needs of people with HIV who struggled with viral suppression even before the COVID-19 pandemic, said Jason Farley, PhD, ANP-BC, AACRN, associate professor of nursing at Johns Hopkins University, Baltimore. So it’s time for HIV care teams, especially clinics in the Ryan White HIV/AIDS Program, to get creative in bringing wraparound services to patients.

That may mean reallocating the workforce so that one person serves as a community health worker. Or it could mean increasing texts and video calls; helping patients find online support groups to address problems with alcohol or drug use; and conducting an overall assessment of patients’ needs as the pandemic continues.

“The virtual patient-centered medical home may be the new normal after COVID-19, and we have to be thinking about how we use this model with patients for whom it works, but supplement this model in patients that it does not,” Farley said at the virtual Association of Nurses in AIDS Care (ANAC) 2020 Annual Meeting. That work “is essential to our being able to facilitate the best patient outcomes possible.”
 

Early data, tiered interventions

Farley referred to an article published in September in the Journal AIDS that confirmed unpublished data mentioned at the International AIDS Conference 2020. The article reported that viral suppression rates among people with HIV who attended San Francisco’s Ward 86 HIV clinic dropped by 31% from pre-COVID levels.

Of the 1766 people who attended the clinic, about 1 in 5 had detectable HIV viral loads at any point in 2019. But that rate was 31% higher after shelter-in-place orders were issued. And although patients participated in telemedicine visits at more or less the same rate before and after the pandemic (31% vs. 30% no-shows), viral suppression rates dropped. The impact was especially acute for homeless individuals.

“This destabilization occurred despite our population attending telemedicine visits at a higher rate than expected, given the 60% drop in ambulatory care visit volume nationwide,” the authors stated in their article. “Telehealth visits, while offering greater patient convenience, may lead to less access to clinic-based social support services essential to achieving viral suppression among vulnerable groups.”

That’s the challenge HIV clinics now face, Farley said at the ANAC meeting.

He suggested a differentiated care approach in which there are four tiers of care, starting with the standard level of outreach, which may include email, electronic health record blasts, and robo-calls to remind people of their appointments and to refill their medications. Those with sustained viral suppression may only need 90-day automatic refills of their medications. Those who are vulnerable to nonadherence may need to be contacted weekly or more often by the clinic. Such contact could be made by a social worker, a community health worker, or through some form of virtual support.

Patients at tier 4, who have labile viral suppression, need far more than that. These are the 15% of patients with HIV who struggled with viral suppression before the pandemic. They are the patients that Farley’s team focuses on at Baltimore’s John G. Bartlett Specialty Clinic for Infectious Disease.

“We’ve completely deconstructed the patient-centered medical home,” he said of the early move to virtual care. He suggested that clinicians assess their services and ask themselves some questions:

• Has someone on the team reached out to every patient and checked in to see what their biggest needs are, medical or not, during the pandemic? Have they assessed the patient’s ability to receive video calls or text messages?
• How have group-support programs that address stigma or the social determinants of health fared in the transition to virtual medicine?
• Are patients who are in recovery being supported in order that they may engage with recovery programs online?
• How well have counseling services done in engaging people in virtual care? Currently, given the overall increase in mental health challenges during the pandemic, one would expect that the use of mental health counseling is increasing. “If they’re stagnant or going down, someone needs to be reflecting on that issue internally in the clinic,” he said.
• Are patients being contacted regarding the effects that isolation is having on their lives? “The things that would normally allow us to self-mitigate and self-manage these conditions, like going to the gym, meeting with friends, religious services – all of those are being cut,” he said.
• Is there an early alert from an in-person pharmacy to trigger outreach via a community health worker for patients who haven’t picked up their medications in a week or more?

Farley pointed to a 2015 model for an enhanced e-health approach to chronic care management that called for e-support from the community and that was enhanced through virtual communities.

These are some of the approaches Farley has taken at his clinic. He leads a team that focuses specifically on patients who struggled with engagement before the pandemic. Through a grant from the US Department of Health & Human Services’ Health Resources and Services Administration – even before the pandemic – that team has been funding community health workers who have multiple contacts with patients online and virtually and are able to offer what he calls “unapologetically enabling” support for patients so that they are able to focus on their health.

He gave the following example. Before the pandemic, a community health worker on the team had been working with a patient who showed up at every scheduled visit and swore that she was taking her medications, although clearly she was not. A community health worker, who was made available through the grant, was able to recognize that the patient’s biggest challenge in her life was providing childcare for her special-needs child. The community health worker worked with the patient for months to find stable childcare for the child, paid 2 months of rent for the patient so that she would not become homeless, and helped her find transitional housing. When the pandemic hit, the community health worker was already texting and conducting video calls with the patient regularly.

For the past 9 months, that patient has had an undetectable viral load, Farley said.

“Nine months during a pandemic,” Farley reiterated, “and the community health worker keeps working with her, keeps meeting with her.”
 

Stigma on stigma

The need for this level of support from the clinic may be even more important for people with HIV who acquire COVID-19, said Orlando Harris, PhD, assistant professor of community health systems at the University of California, San Francisco, (UCSF) School of Nursing. HIV-related stigma is a well-known deterrent to care for people living with the virus. During the presentation, Harris asked Farley about the impact of COVID-19 stigma on people with both HIV and COVID-19.

Farley said that patients at his clinic have told him that they have “ostracized” friends who have tested positive for COVID-19. Harris remembered a person with HIV who participated in one of his trials telling the researchers that despite all his precautions – wearing a mask, staying socially distant – he still acquired COVID-19. There was nothing he could have done, Harris said, other than just not go to the grocery store.

The fear of contracting another disease that is associated with stigma, as well as the need to disclose it, can inflame memories of the trauma of being diagnosed with HIV, Harris said. And with patient-centered medical homes struggling to reconstitute their wraparound services via telehealth, he said he wonders whether clinicians should be doing more.

“I worry about people who have survived being diagnosed with HIV in the ‘80s and the ‘90s before antiretroviral therapy showed up on the scene,” he told Medscape Medical News. “I worry that the folks that survived one pandemic [may] be feeling fearful or living in that fear that this new pandemic might take them out. That’s why I’m stressing the need for us to really consider, as clinicians and also as researchers the support systems, the coping mechanisms, the counseling, or what have you to support those living with HIV and vulnerable to COVID-19.”

During telehealth visits, that can be achieved simply by asking people how they are really doing and what their coping mechanisms are.

For their part, the clinicians at San Francisco’s Ward 86 are not trying to provide that support through telehealth on the same level as they were at the beginning of the pandemic, said Matthew Spinelli, MD, assistant professor of medicine, and Monica Gandhi, MD, associate chief of the Division of HIV, Infectious Diseases and Global Medicine, who are both at UCSF and are coauthors of the study.

They still offer telemedicine appointments to patients who request them, said Spinelli. He said about one-third of his patients still prefer to receive their care virtually. The rest have gone back to face-to-face support.

“The analysis led us to promptly open up care as much as possible to our patients, with the idea that telehealth is not cutting it for vulnerable patients with HIV,” Gandhi told Medscape Medical News via email. “We don’t think it’s right for a population who relies on social support from the clinic.”
 

This article first appeared on Medscape.com.

In a phase 3 trial where all participants received intensive behavior therapy, investigational 2.4-mg once-weekly subcutaneous semaglutide (Novo Nordisk) resulted in a 10.3% greater average weight loss than placebo over a period of 68 weeks.

If approved, this medication could be a “potential major breakthrough” in obesity management, the investigators suggested. But other experts urged caution, as cost and uptake are important considerations.
 

‘Potential weight loss that patients would be happy with’

Thomas A. Wadden, PhD, presented results from the study of 611 adults with overweight or obesity but no diabetes at the virtual ObesityWeek® Interactive 2020 meeting.

“Perhaps even more impressive was the finding that 75% of patients lost 10% or more of baseline body weight,” said Dr. Wadden, of the department of psychiatry at the University of Pennsylvania, Philadelphia.

Moreover, in this trial of semaglutide, a glucagonlike peptide–1 (GLP-1) receptor agonist that is approved for treating type 2 diabetes at a weekly subcutaneous dose of 1 mg, but is being investigated at the higher dose for weight loss – 55% of patients lost ≥15% of their initial weight, and 36% lost ≥20% of their initial weight.

“These large categorical weight losses – particularly of 15% and 20% of initial weight – are potentially a major breakthrough in the management of obesity,” Dr. Wadden said in an interview.

Weight losses of this size, he added, “should confer greater improvements in cardiometabolic risk factors (such as hypertension, sleep apnea, and type 2 diabetes) as compared with losses of 5%-10% achieved with current behavioral or pharmacological approaches.” And patients are generally not satisfied with losses of less than 10% of initial weight when participating in intensive behavior programs or taking weight-loss medications.

Now, “the larger categorical weight losses will mean that a greater number of patients with obesity will be able to achieve a weight loss with which they are ... happy,” Dr. Wadden said in an interview.

According to Louis J. Aronne, MD, Weill Professor of Metabolic Research, Weill Cornell Medicine, New York, who is an investigator for another trial of semaglutide: “Even though it has the same mechanism of action [as liraglutide], the weight loss is two or more times greater [with semaglutide]. In my opinion, it’s really going to be a major advance in the treatment of obesity.”

In the discussion that followed the virtual presentation, one attendee asked about potential weight regain if a patient stopped taking the drug. Based on experience with another subcutaneous injectable GLP-1 receptor agonist, liraglutide (Saxenda), already approved for obesity, it may be that taking medicine for chronic overweight may become like taking a statin for elevated cholesterol, said Dr. Wadden.

Novo Nordisk has now completed the four trials in the STEP (Semaglutide Treatment Effect in People With Obesity) global phase 3 clinical development program, and plans to file applications with the Food and Drug Administration later this year and with the European Medicines Agency in early 2021 for review of semaglutide 2.4 mg for weight management.
 

“Fundamental issues need to be figured out”

Invited to comment, Scott Kahan, MD, said: “This is impressive data, confirming that semaglutide, particularly when used in concert with evidence-based counseling, is a highly effective agent for obesity management.”

However, “the real question, though, is what comes next,” stressed Dr. Kahan, director of the National Center for Weight and Wellness, Washington, DC.

“Will it be approved by the U.S. FDA? I believe so,” he said in an interview. “Yet we already have several effective obesity medications approved over the past decade – all of which are rarely used and therefore make little impact for patients in the real world.”

“Will there be insurance coverage, and therefore practical access for those who could most benefit?” he continued. “Will prescribers counsel their patients about obesity management, including the use of effective medications? Will patients utilize available options?”

“These and other fundamental issues must be figured out before we anoint any treatment option as a meaningful step forward, let alone a transformative development,” according to Dr. Kahan.

Similarly, Irl B. Hirsch, MD, stressed that, should this medication be approved for weight loss, cost would be a major factor in its uptake.

“I’m old enough to recall when we started using lovastatin in the late 1980s,” Dr. Hirsch, professor of medicine, University of Washington Medicine Diabetes Institute, Seattle, said in an interview.

“We used it without the type of evidence of statin use we have today. A pill, but in those days the statins were expensive. But over time, the evidence for statins grew and over the next 15 years it was quite clear that for both primary prevention (for those with diabetes) and secondary intervention these drugs needed to be used by millions of people. These recommendations became easier once the drugs became generic.

“Will the same thing happen for GLP-1 agonists? The problem is we need both ‘hard-outcome data’ [such as 3-point major adverse cardiovascular events] and more reasonable cost before we see this expanding to an entire population.

“In the future perhaps we could have a biosimilar GLP-1 agonist that would be more affordable than what we pay now, but even before that we need agreement from our reimbursement thought leaders that our society should reimburse these agents.

“My thinking now is the cost-benefit could be favorable, but this is all dependent on what happens to the cost of the drugs over time,” he said.
 

Additive effect of intensive behavior therapy plus medication

Dr. Wadden explained that intensive behavioral therapy “provides 14 or more counseling sessions in 6 months to modify diet and physical activity, through the patients’ use of behavioral strategies (such as keeping daily food and activity diaries).”

Such programs typically produce mean weight loss of 5%-8% of initial weight; less frequent (e.g., monthly) programs typically produce weight loss of only 1%-3%.

Prior studies suggest that intensive behavioral therapy and medication have additive effects. To investigate this, Dr. Wadden and colleagues randomized 611 adults (81% women) who were a mean age of 46 years and had a mean body mass index of 38 kg/m².

All participants received 30 intensive behavior therapy sessions provided by a registered dietitian (or other qualified provider), which typically lasted 20-30 minutes and were given weekly for 12 weeks, every other week for the next 12 weeks, and then monthly.  

The dietitian gave participants behavioral strategies to help them adhere to diet and physical activity goals.

During the first 8 weeks, participants were provided with a 1,000-1,200 kcal/day meal replacement diet that included liquid shakes, meal bars, and prepared entrees designed to facilitate a large initial weight loss.

They then transitioned to a diet of conventional foods (of their choosing), with a goal of 1,200-1,800 kcal/day based on body weight.  

The physical activity goal was 100 minutes/week of walking or other aerobic activity in the first month, building up to 200 minutes/week by month 6.
 

‘More effective than current FDA-approved weight-loss medications’

At week 68, mean body weight decreased from baseline by 16.0% in the semaglutide group versus 5.7% in the placebo group (P < .0001).

In this trial, where all participants received extensive intensive behavior therapy, more participants had weight loss ≥5%, ≥10%, ≥15%, and ≥20% of their initial weight with semaglutide versus placebo (87% vs. 48%; 75% vs. 27%; 56% vs. 13%; 36% vs. 4%, respectively; all P < .0001).

From baseline to week 68, the proportion of participants with prediabetes decreased from 48% to 7% in the semaglutide group and from 53% to 26% in the placebo group.

Patients who received semaglutide had greater improvements in lipids, too.

Although the weight loss was 10.3% (10.6 kg) greater with semaglutide, Dr. Wadden noted, “additional studies have shown this net benefit to be as great as 11%-12%, which would make semaglutide 2.4 mg more effective than current [FDA-approved] weight-loss medications.”

“Naltrexone-bupropion (Contrave) with lifestyle counseling, for example,” he continued, “produces a loss that is 5 kg greater than lifestyle counseling plus placebo, liraglutide 3.0 mg (Saxenda) a loss 5.3 kg greater than placebo, and phentermine-topiramate (Qsymia) a loss that is 8.8 kg greater than placebo.” 

Semaglutide was well tolerated. Gastrointestinal adverse events, the most common type, occurred in 83% of patients in the semaglutide group and 63% of patients in the placebo group.

Nausea, as well as constipation and diarrhea, are common in medications that increase GLP-1 levels, Dr. Wadden noted. Side effects can be managed by slowly increasing the medication dose over 4 months.  

Dr. Wadden expects that, if approved, semaglutide 2.4 mg subcutaneous once-weekly will be recommended as an adjunct to a reduced calorie diet and increased physical activity. Additional studies suggest that monthly counseling should be sufficient to obtain similar weight losses as those seen in the current trial, which had more intensive counseling.

As well as being approved as a weekly subcutaneous injectable treatment for type 2 diabetes, semaglutide is also approved as an once-daily oral agent for the same indication (Rybelsus, Novo Nordisk) in doses of 7 mg and 14 mg to improve glycemic control along with diet and exercise. It is the first GLP-1 agonist available in tablet form.

Dr. Wadden serves on scientific advisory boards for Novo Nordisk and WW (formerly Weight Watchers), and has received grant support, on behalf of the University of Pennsylvania, from Novo Nordisk. Dr. Aronne is an investigator in a long-term trial of semaglutide and has served on scientific advisory boards for Novo Nordisk in the past. He also has other industry relationships that are not related to semaglutide.

A version of this article originally appeared on Medscape.com.

In a phase 3 trial where all participants received intensive behavior therapy, investigational 2.4-mg once-weekly subcutaneous semaglutide (Novo Nordisk) resulted in a 10.3% greater average weight loss than placebo over a period of 68 weeks.

If approved, this medication could be a “potential major breakthrough” in obesity management, the investigators suggested. But other experts urged caution, as cost and uptake are important considerations.
 

‘Potential weight loss that patients would be happy with’

Thomas A. Wadden, PhD, presented results from the study of 611 adults with overweight or obesity but no diabetes at the virtual ObesityWeek® Interactive 2020 meeting.

“Perhaps even more impressive was the finding that 75% of patients lost 10% or more of baseline body weight,” said Dr. Wadden, of the department of psychiatry at the University of Pennsylvania, Philadelphia.

Moreover, in this trial of semaglutide, a glucagonlike peptide–1 (GLP-1) receptor agonist that is approved for treating type 2 diabetes at a weekly subcutaneous dose of 1 mg, but is being investigated at the higher dose for weight loss – 55% of patients lost ≥15% of their initial weight, and 36% lost ≥20% of their initial weight.

“These large categorical weight losses – particularly of 15% and 20% of initial weight – are potentially a major breakthrough in the management of obesity,” Dr. Wadden said in an interview.

Weight losses of this size, he added, “should confer greater improvements in cardiometabolic risk factors (such as hypertension, sleep apnea, and type 2 diabetes) as compared with losses of 5%-10% achieved with current behavioral or pharmacological approaches.” And patients are generally not satisfied with losses of less than 10% of initial weight when participating in intensive behavior programs or taking weight-loss medications.

Now, “the larger categorical weight losses will mean that a greater number of patients with obesity will be able to achieve a weight loss with which they are ... happy,” Dr. Wadden said in an interview.

According to Louis J. Aronne, MD, Weill Professor of Metabolic Research, Weill Cornell Medicine, New York, who is an investigator for another trial of semaglutide: “Even though it has the same mechanism of action [as liraglutide], the weight loss is two or more times greater [with semaglutide]. In my opinion, it’s really going to be a major advance in the treatment of obesity.”

In the discussion that followed the virtual presentation, one attendee asked about potential weight regain if a patient stopped taking the drug. Based on experience with another subcutaneous injectable GLP-1 receptor agonist, liraglutide (Saxenda), already approved for obesity, it may be that taking medicine for chronic overweight may become like taking a statin for elevated cholesterol, said Dr. Wadden.

Novo Nordisk has now completed the four trials in the STEP (Semaglutide Treatment Effect in People With Obesity) global phase 3 clinical development program, and plans to file applications with the Food and Drug Administration later this year and with the European Medicines Agency in early 2021 for review of semaglutide 2.4 mg for weight management.
 

“Fundamental issues need to be figured out”

Invited to comment, Scott Kahan, MD, said: “This is impressive data, confirming that semaglutide, particularly when used in concert with evidence-based counseling, is a highly effective agent for obesity management.”

However, “the real question, though, is what comes next,” stressed Dr. Kahan, director of the National Center for Weight and Wellness, Washington, DC.

“Will it be approved by the U.S. FDA? I believe so,” he said in an interview. “Yet we already have several effective obesity medications approved over the past decade – all of which are rarely used and therefore make little impact for patients in the real world.”

“Will there be insurance coverage, and therefore practical access for those who could most benefit?” he continued. “Will prescribers counsel their patients about obesity management, including the use of effective medications? Will patients utilize available options?”

“These and other fundamental issues must be figured out before we anoint any treatment option as a meaningful step forward, let alone a transformative development,” according to Dr. Kahan.

Similarly, Irl B. Hirsch, MD, stressed that, should this medication be approved for weight loss, cost would be a major factor in its uptake.

“I’m old enough to recall when we started using lovastatin in the late 1980s,” Dr. Hirsch, professor of medicine, University of Washington Medicine Diabetes Institute, Seattle, said in an interview.

“We used it without the type of evidence of statin use we have today. A pill, but in those days the statins were expensive. But over time, the evidence for statins grew and over the next 15 years it was quite clear that for both primary prevention (for those with diabetes) and secondary intervention these drugs needed to be used by millions of people. These recommendations became easier once the drugs became generic.

“Will the same thing happen for GLP-1 agonists? The problem is we need both ‘hard-outcome data’ [such as 3-point major adverse cardiovascular events] and more reasonable cost before we see this expanding to an entire population.

“In the future perhaps we could have a biosimilar GLP-1 agonist that would be more affordable than what we pay now, but even before that we need agreement from our reimbursement thought leaders that our society should reimburse these agents.

“My thinking now is the cost-benefit could be favorable, but this is all dependent on what happens to the cost of the drugs over time,” he said.
 

Additive effect of intensive behavior therapy plus medication

Dr. Wadden explained that intensive behavioral therapy “provides 14 or more counseling sessions in 6 months to modify diet and physical activity, through the patients’ use of behavioral strategies (such as keeping daily food and activity diaries).”

Such programs typically produce mean weight loss of 5%-8% of initial weight; less frequent (e.g., monthly) programs typically produce weight loss of only 1%-3%.

Prior studies suggest that intensive behavioral therapy and medication have additive effects. To investigate this, Dr. Wadden and colleagues randomized 611 adults (81% women) who were a mean age of 46 years and had a mean body mass index of 38 kg/m².

All participants received 30 intensive behavior therapy sessions provided by a registered dietitian (or other qualified provider), which typically lasted 20-30 minutes and were given weekly for 12 weeks, every other week for the next 12 weeks, and then monthly.  

The dietitian gave participants behavioral strategies to help them adhere to diet and physical activity goals.

During the first 8 weeks, participants were provided with a 1,000-1,200 kcal/day meal replacement diet that included liquid shakes, meal bars, and prepared entrees designed to facilitate a large initial weight loss.

They then transitioned to a diet of conventional foods (of their choosing), with a goal of 1,200-1,800 kcal/day based on body weight.  

The physical activity goal was 100 minutes/week of walking or other aerobic activity in the first month, building up to 200 minutes/week by month 6.
 

‘More effective than current FDA-approved weight-loss medications’

At week 68, mean body weight decreased from baseline by 16.0% in the semaglutide group versus 5.7% in the placebo group (P < .0001).

In this trial, where all participants received extensive intensive behavior therapy, more participants had weight loss ≥5%, ≥10%, ≥15%, and ≥20% of their initial weight with semaglutide versus placebo (87% vs. 48%; 75% vs. 27%; 56% vs. 13%; 36% vs. 4%, respectively; all P < .0001).

From baseline to week 68, the proportion of participants with prediabetes decreased from 48% to 7% in the semaglutide group and from 53% to 26% in the placebo group.

Patients who received semaglutide had greater improvements in lipids, too.

Although the weight loss was 10.3% (10.6 kg) greater with semaglutide, Dr. Wadden noted, “additional studies have shown this net benefit to be as great as 11%-12%, which would make semaglutide 2.4 mg more effective than current [FDA-approved] weight-loss medications.”

“Naltrexone-bupropion (Contrave) with lifestyle counseling, for example,” he continued, “produces a loss that is 5 kg greater than lifestyle counseling plus placebo, liraglutide 3.0 mg (Saxenda) a loss 5.3 kg greater than placebo, and phentermine-topiramate (Qsymia) a loss that is 8.8 kg greater than placebo.” 

Semaglutide was well tolerated. Gastrointestinal adverse events, the most common type, occurred in 83% of patients in the semaglutide group and 63% of patients in the placebo group.

Nausea, as well as constipation and diarrhea, are common in medications that increase GLP-1 levels, Dr. Wadden noted. Side effects can be managed by slowly increasing the medication dose over 4 months.  

Dr. Wadden expects that, if approved, semaglutide 2.4 mg subcutaneous once-weekly will be recommended as an adjunct to a reduced calorie diet and increased physical activity. Additional studies suggest that monthly counseling should be sufficient to obtain similar weight losses as those seen in the current trial, which had more intensive counseling.

As well as being approved as a weekly subcutaneous injectable treatment for type 2 diabetes, semaglutide is also approved as an once-daily oral agent for the same indication (Rybelsus, Novo Nordisk) in doses of 7 mg and 14 mg to improve glycemic control along with diet and exercise. It is the first GLP-1 agonist available in tablet form.

Dr. Wadden serves on scientific advisory boards for Novo Nordisk and WW (formerly Weight Watchers), and has received grant support, on behalf of the University of Pennsylvania, from Novo Nordisk. Dr. Aronne is an investigator in a long-term trial of semaglutide and has served on scientific advisory boards for Novo Nordisk in the past. He also has other industry relationships that are not related to semaglutide.

A version of this article originally appeared on Medscape.com.

In a phase 3 trial where all participants received intensive behavior therapy, investigational 2.4-mg once-weekly subcutaneous semaglutide (Novo Nordisk) resulted in a 10.3% greater average weight loss than placebo over a period of 68 weeks.

If approved, this medication could be a “potential major breakthrough” in obesity management, the investigators suggested. But other experts urged caution, as cost and uptake are important considerations.
 

‘Potential weight loss that patients would be happy with’

Thomas A. Wadden, PhD, presented results from the study of 611 adults with overweight or obesity but no diabetes at the virtual ObesityWeek® Interactive 2020 meeting.

“Perhaps even more impressive was the finding that 75% of patients lost 10% or more of baseline body weight,” said Dr. Wadden, of the department of psychiatry at the University of Pennsylvania, Philadelphia.

Moreover, in this trial of semaglutide, a glucagonlike peptide–1 (GLP-1) receptor agonist that is approved for treating type 2 diabetes at a weekly subcutaneous dose of 1 mg, but is being investigated at the higher dose for weight loss – 55% of patients lost ≥15% of their initial weight, and 36% lost ≥20% of their initial weight.

“These large categorical weight losses – particularly of 15% and 20% of initial weight – are potentially a major breakthrough in the management of obesity,” Dr. Wadden said in an interview.

Weight losses of this size, he added, “should confer greater improvements in cardiometabolic risk factors (such as hypertension, sleep apnea, and type 2 diabetes) as compared with losses of 5%-10% achieved with current behavioral or pharmacological approaches.” And patients are generally not satisfied with losses of less than 10% of initial weight when participating in intensive behavior programs or taking weight-loss medications.

Now, “the larger categorical weight losses will mean that a greater number of patients with obesity will be able to achieve a weight loss with which they are ... happy,” Dr. Wadden said in an interview.

According to Louis J. Aronne, MD, Weill Professor of Metabolic Research, Weill Cornell Medicine, New York, who is an investigator for another trial of semaglutide: “Even though it has the same mechanism of action [as liraglutide], the weight loss is two or more times greater [with semaglutide]. In my opinion, it’s really going to be a major advance in the treatment of obesity.”

In the discussion that followed the virtual presentation, one attendee asked about potential weight regain if a patient stopped taking the drug. Based on experience with another subcutaneous injectable GLP-1 receptor agonist, liraglutide (Saxenda), already approved for obesity, it may be that taking medicine for chronic overweight may become like taking a statin for elevated cholesterol, said Dr. Wadden.

Novo Nordisk has now completed the four trials in the STEP (Semaglutide Treatment Effect in People With Obesity) global phase 3 clinical development program, and plans to file applications with the Food and Drug Administration later this year and with the European Medicines Agency in early 2021 for review of semaglutide 2.4 mg for weight management.
 

“Fundamental issues need to be figured out”

Invited to comment, Scott Kahan, MD, said: “This is impressive data, confirming that semaglutide, particularly when used in concert with evidence-based counseling, is a highly effective agent for obesity management.”

However, “the real question, though, is what comes next,” stressed Dr. Kahan, director of the National Center for Weight and Wellness, Washington, DC.

“Will it be approved by the U.S. FDA? I believe so,” he said in an interview. “Yet we already have several effective obesity medications approved over the past decade – all of which are rarely used and therefore make little impact for patients in the real world.”

“Will there be insurance coverage, and therefore practical access for those who could most benefit?” he continued. “Will prescribers counsel their patients about obesity management, including the use of effective medications? Will patients utilize available options?”

“These and other fundamental issues must be figured out before we anoint any treatment option as a meaningful step forward, let alone a transformative development,” according to Dr. Kahan.

Similarly, Irl B. Hirsch, MD, stressed that, should this medication be approved for weight loss, cost would be a major factor in its uptake.

“I’m old enough to recall when we started using lovastatin in the late 1980s,” Dr. Hirsch, professor of medicine, University of Washington Medicine Diabetes Institute, Seattle, said in an interview.

“We used it without the type of evidence of statin use we have today. A pill, but in those days the statins were expensive. But over time, the evidence for statins grew and over the next 15 years it was quite clear that for both primary prevention (for those with diabetes) and secondary intervention these drugs needed to be used by millions of people. These recommendations became easier once the drugs became generic.

“Will the same thing happen for GLP-1 agonists? The problem is we need both ‘hard-outcome data’ [such as 3-point major adverse cardiovascular events] and more reasonable cost before we see this expanding to an entire population.

“In the future perhaps we could have a biosimilar GLP-1 agonist that would be more affordable than what we pay now, but even before that we need agreement from our reimbursement thought leaders that our society should reimburse these agents.

“My thinking now is the cost-benefit could be favorable, but this is all dependent on what happens to the cost of the drugs over time,” he said.
 

Additive effect of intensive behavior therapy plus medication

Dr. Wadden explained that intensive behavioral therapy “provides 14 or more counseling sessions in 6 months to modify diet and physical activity, through the patients’ use of behavioral strategies (such as keeping daily food and activity diaries).”

Such programs typically produce mean weight loss of 5%-8% of initial weight; less frequent (e.g., monthly) programs typically produce weight loss of only 1%-3%.

Prior studies suggest that intensive behavioral therapy and medication have additive effects. To investigate this, Dr. Wadden and colleagues randomized 611 adults (81% women) who were a mean age of 46 years and had a mean body mass index of 38 kg/m².

All participants received 30 intensive behavior therapy sessions provided by a registered dietitian (or other qualified provider), which typically lasted 20-30 minutes and were given weekly for 12 weeks, every other week for the next 12 weeks, and then monthly.  

The dietitian gave participants behavioral strategies to help them adhere to diet and physical activity goals.

During the first 8 weeks, participants were provided with a 1,000-1,200 kcal/day meal replacement diet that included liquid shakes, meal bars, and prepared entrees designed to facilitate a large initial weight loss.

They then transitioned to a diet of conventional foods (of their choosing), with a goal of 1,200-1,800 kcal/day based on body weight.  

The physical activity goal was 100 minutes/week of walking or other aerobic activity in the first month, building up to 200 minutes/week by month 6.
 

‘More effective than current FDA-approved weight-loss medications’

At week 68, mean body weight decreased from baseline by 16.0% in the semaglutide group versus 5.7% in the placebo group (P < .0001).

In this trial, where all participants received extensive intensive behavior therapy, more participants had weight loss ≥5%, ≥10%, ≥15%, and ≥20% of their initial weight with semaglutide versus placebo (87% vs. 48%; 75% vs. 27%; 56% vs. 13%; 36% vs. 4%, respectively; all P < .0001).

From baseline to week 68, the proportion of participants with prediabetes decreased from 48% to 7% in the semaglutide group and from 53% to 26% in the placebo group.

Patients who received semaglutide had greater improvements in lipids, too.

Although the weight loss was 10.3% (10.6 kg) greater with semaglutide, Dr. Wadden noted, “additional studies have shown this net benefit to be as great as 11%-12%, which would make semaglutide 2.4 mg more effective than current [FDA-approved] weight-loss medications.”

“Naltrexone-bupropion (Contrave) with lifestyle counseling, for example,” he continued, “produces a loss that is 5 kg greater than lifestyle counseling plus placebo, liraglutide 3.0 mg (Saxenda) a loss 5.3 kg greater than placebo, and phentermine-topiramate (Qsymia) a loss that is 8.8 kg greater than placebo.” 

Semaglutide was well tolerated. Gastrointestinal adverse events, the most common type, occurred in 83% of patients in the semaglutide group and 63% of patients in the placebo group.

Nausea, as well as constipation and diarrhea, are common in medications that increase GLP-1 levels, Dr. Wadden noted. Side effects can be managed by slowly increasing the medication dose over 4 months.  

Dr. Wadden expects that, if approved, semaglutide 2.4 mg subcutaneous once-weekly will be recommended as an adjunct to a reduced calorie diet and increased physical activity. Additional studies suggest that monthly counseling should be sufficient to obtain similar weight losses as those seen in the current trial, which had more intensive counseling.

As well as being approved as a weekly subcutaneous injectable treatment for type 2 diabetes, semaglutide is also approved as an once-daily oral agent for the same indication (Rybelsus, Novo Nordisk) in doses of 7 mg and 14 mg to improve glycemic control along with diet and exercise. It is the first GLP-1 agonist available in tablet form.

Dr. Wadden serves on scientific advisory boards for Novo Nordisk and WW (formerly Weight Watchers), and has received grant support, on behalf of the University of Pennsylvania, from Novo Nordisk. Dr. Aronne is an investigator in a long-term trial of semaglutide and has served on scientific advisory boards for Novo Nordisk in the past. He also has other industry relationships that are not related to semaglutide.

A version of this article originally appeared on Medscape.com.

The US Food and Drug Administration (FDA) issued an emergency use authorization (EUA) Nov. 9 for the investigational monoclonal antibody therapy bamlanivimab (Eli Lilly) to treat adults and children with mild to moderate COVID-19.

The monoclonal antibody therapy has emergency authorization for treating patients who have tested positive for SARS-CoV-2 infection and who are considered to be at high risk for progression to severe COVID-19 or hospitalization. To be eligible for treatment with bamlanivimab, patients must be at least 12 years of age and weigh at least 40 kg (approximately 88 lb). The agency notes that this includes patients aged 65 years and older or people with certain chronic conditions.

Bamlanivimab is not authorized for use in patients who are hospitalized or who require oxygen therapy because of COVID-19. The FDA’s action comes less than 2 weeks after Eli Lilly halted the ACTIV-3 study of the therapy for severe, hospitalized COVID-19 patients after evidence showed that adding the antibody therapy to standard care did not improve outcomes over standard care alone for patients with advanced COVID-19.

The government contract with Eli Lilly involves the purchase of 300,000 doses through December, with the option to procure another 650,000 doses through June 2021.

Because of Operation Warp Speed, “we have supplies to distribute now. Product distribution will begin this week,” US Health & Human Services (HHS) Secretary Alex Azar said at a news conference today.

“We talked about building the bridge to safe and effective vaccines” for COVID-19, Azar added. “With this therapeutic, the bridge is taking shape.”

Bamlanivimab 700 mg will be administered as a 1-hour infusion followed by a 1-hour observation period for detecting any infusion-related side effects. The authorized dose is 700 mg, which was on the lower end of the dose range evaluated in studies.

During the press conference, a reporter asked whether the lower dose was chosen in order that more doses of the antibody could be made available. “The lower dose is a rational choice in this situation because we don’t want to give more of a drug than you need,” said Janet Woodcock, MD, the therapeutics lead for Operation Warp Speed. “I think we could probably go lower.”

Bamlanivimab works by attaching to the virus and blocking its entry into the cells and possibly by helping the patients’ immune system clear the virus, said Woodcock, who is also director of the FDA’s Center for Drug Evaluation and Research.

“The goal is to treat high-risk people as soon as possible after they show symptoms and are diagnosed,” she added.
 

Infusions an initial challenge?

There could be some logistic challenges at first because the antibody is administered via infusion. “We expect there will initially be a challenge in administering ... these infusions and setting up infusion centers,” Woodcock said.

Outpatient intravenous infusions are normally performed at infusion centers for patients with cancer and immune disorders, she noted. “You really don’t want them mixing with people who have COVID-19 disease, so we will need to set up separate sites.”

Bamlanivimab will be provided free of cost to patients, Azar said. Patients should be aware that coinsurance may be required for the infusion.
 

“Fair and equitable” distribution planned

During phase 1 of distribution, the agent will first be allocated to hospitals and hospital-affiliated locations only, John Redd, MD, MPH, chief medical officer, Office of the Assistant Secretary for Preparedness and Response at HHS, said at the press conference.

During phase 2, “there will be expanded distribution to outpatient sites,” he said. In an effort to keep the process transparent, a new website features the latest updates on the distribution of bamlanivimab.

Allocation will be based on two factors: the number of new cases reported in a state or territory in the prior 7 days, and rates of COVID-19 hospitalization during the same period.

Asked why the government would determine distribution of the antibody on the basis of the number of hospitalized patients when the indication includes prevention of admission, Woodcock replied that hospitalization is a surrogate measure that can reflect risk factors in a particular state population, such as obesity, diabetes, or the proportion of older people.

Furthermore, the confirmed cases are a “leading indicator,” she said, that can help identify a steep rise in COVID-19 cases that could indicate more hospitalizations are likely soon. “We don’t want to miss that.”
 

Data underlying the EUA decision

A decrease in hospitalizations or emergency department visits within 28 days of treatment in preclinical studies was “the most important evidence that bamlanivimab may be effective,” the agency noted in the press release announcing the EUA. Among patients at high risk for progression, 3% required such interventions, compared with 10% of placebo-treated patients.

Potential side effects of bamlanivimab include anaphylaxis, infusion-related reactions, nausea, diarrhea, dizziness, headache, itching, and vomiting.

“As illustrated by today’s action, the FDA remains committed to expediting the development and availability of potential COVID-19 treatments and providing sick patients timely access to new therapies where appropriate,” FDA Commissioner Stephen M. Hahn, MD, said in the news release.

Healthcare providers can download a detailed FDA fact sheet on the EUA for bamlanivimab, which includes dosing instructions.
 

This article first appeared on Medscape.com.

The US Food and Drug Administration (FDA) issued an emergency use authorization (EUA) Nov. 9 for the investigational monoclonal antibody therapy bamlanivimab (Eli Lilly) to treat adults and children with mild to moderate COVID-19.

The monoclonal antibody therapy has emergency authorization for treating patients who have tested positive for SARS-CoV-2 infection and who are considered to be at high risk for progression to severe COVID-19 or hospitalization. To be eligible for treatment with bamlanivimab, patients must be at least 12 years of age and weigh at least 40 kg (approximately 88 lb). The agency notes that this includes patients aged 65 years and older or people with certain chronic conditions.

Bamlanivimab is not authorized for use in patients who are hospitalized or who require oxygen therapy because of COVID-19. The FDA’s action comes less than 2 weeks after Eli Lilly halted the ACTIV-3 study of the therapy for severe, hospitalized COVID-19 patients after evidence showed that adding the antibody therapy to standard care did not improve outcomes over standard care alone for patients with advanced COVID-19.

The government contract with Eli Lilly involves the purchase of 300,000 doses through December, with the option to procure another 650,000 doses through June 2021.

Because of Operation Warp Speed, “we have supplies to distribute now. Product distribution will begin this week,” US Health & Human Services (HHS) Secretary Alex Azar said at a news conference today.

“We talked about building the bridge to safe and effective vaccines” for COVID-19, Azar added. “With this therapeutic, the bridge is taking shape.”

Bamlanivimab 700 mg will be administered as a 1-hour infusion followed by a 1-hour observation period for detecting any infusion-related side effects. The authorized dose is 700 mg, which was on the lower end of the dose range evaluated in studies.

During the press conference, a reporter asked whether the lower dose was chosen in order that more doses of the antibody could be made available. “The lower dose is a rational choice in this situation because we don’t want to give more of a drug than you need,” said Janet Woodcock, MD, the therapeutics lead for Operation Warp Speed. “I think we could probably go lower.”

Bamlanivimab works by attaching to the virus and blocking its entry into the cells and possibly by helping the patients’ immune system clear the virus, said Woodcock, who is also director of the FDA’s Center for Drug Evaluation and Research.

“The goal is to treat high-risk people as soon as possible after they show symptoms and are diagnosed,” she added.
 

Infusions an initial challenge?

There could be some logistic challenges at first because the antibody is administered via infusion. “We expect there will initially be a challenge in administering ... these infusions and setting up infusion centers,” Woodcock said.

Outpatient intravenous infusions are normally performed at infusion centers for patients with cancer and immune disorders, she noted. “You really don’t want them mixing with people who have COVID-19 disease, so we will need to set up separate sites.”

Bamlanivimab will be provided free of cost to patients, Azar said. Patients should be aware that coinsurance may be required for the infusion.
 

“Fair and equitable” distribution planned

During phase 1 of distribution, the agent will first be allocated to hospitals and hospital-affiliated locations only, John Redd, MD, MPH, chief medical officer, Office of the Assistant Secretary for Preparedness and Response at HHS, said at the press conference.

During phase 2, “there will be expanded distribution to outpatient sites,” he said. In an effort to keep the process transparent, a new website features the latest updates on the distribution of bamlanivimab.

Allocation will be based on two factors: the number of new cases reported in a state or territory in the prior 7 days, and rates of COVID-19 hospitalization during the same period.

Asked why the government would determine distribution of the antibody on the basis of the number of hospitalized patients when the indication includes prevention of admission, Woodcock replied that hospitalization is a surrogate measure that can reflect risk factors in a particular state population, such as obesity, diabetes, or the proportion of older people.

Furthermore, the confirmed cases are a “leading indicator,” she said, that can help identify a steep rise in COVID-19 cases that could indicate more hospitalizations are likely soon. “We don’t want to miss that.”
 

Data underlying the EUA decision

A decrease in hospitalizations or emergency department visits within 28 days of treatment in preclinical studies was “the most important evidence that bamlanivimab may be effective,” the agency noted in the press release announcing the EUA. Among patients at high risk for progression, 3% required such interventions, compared with 10% of placebo-treated patients.

Potential side effects of bamlanivimab include anaphylaxis, infusion-related reactions, nausea, diarrhea, dizziness, headache, itching, and vomiting.

“As illustrated by today’s action, the FDA remains committed to expediting the development and availability of potential COVID-19 treatments and providing sick patients timely access to new therapies where appropriate,” FDA Commissioner Stephen M. Hahn, MD, said in the news release.

Healthcare providers can download a detailed FDA fact sheet on the EUA for bamlanivimab, which includes dosing instructions.
 

This article first appeared on Medscape.com.

The US Food and Drug Administration (FDA) issued an emergency use authorization (EUA) Nov. 9 for the investigational monoclonal antibody therapy bamlanivimab (Eli Lilly) to treat adults and children with mild to moderate COVID-19.

The monoclonal antibody therapy has emergency authorization for treating patients who have tested positive for SARS-CoV-2 infection and who are considered to be at high risk for progression to severe COVID-19 or hospitalization. To be eligible for treatment with bamlanivimab, patients must be at least 12 years of age and weigh at least 40 kg (approximately 88 lb). The agency notes that this includes patients aged 65 years and older or people with certain chronic conditions.

Bamlanivimab is not authorized for use in patients who are hospitalized or who require oxygen therapy because of COVID-19. The FDA’s action comes less than 2 weeks after Eli Lilly halted the ACTIV-3 study of the therapy for severe, hospitalized COVID-19 patients after evidence showed that adding the antibody therapy to standard care did not improve outcomes over standard care alone for patients with advanced COVID-19.

The government contract with Eli Lilly involves the purchase of 300,000 doses through December, with the option to procure another 650,000 doses through June 2021.

Because of Operation Warp Speed, “we have supplies to distribute now. Product distribution will begin this week,” US Health & Human Services (HHS) Secretary Alex Azar said at a news conference today.

“We talked about building the bridge to safe and effective vaccines” for COVID-19, Azar added. “With this therapeutic, the bridge is taking shape.”

Bamlanivimab 700 mg will be administered as a 1-hour infusion followed by a 1-hour observation period for detecting any infusion-related side effects. The authorized dose is 700 mg, which was on the lower end of the dose range evaluated in studies.

During the press conference, a reporter asked whether the lower dose was chosen in order that more doses of the antibody could be made available. “The lower dose is a rational choice in this situation because we don’t want to give more of a drug than you need,” said Janet Woodcock, MD, the therapeutics lead for Operation Warp Speed. “I think we could probably go lower.”

Bamlanivimab works by attaching to the virus and blocking its entry into the cells and possibly by helping the patients’ immune system clear the virus, said Woodcock, who is also director of the FDA’s Center for Drug Evaluation and Research.

“The goal is to treat high-risk people as soon as possible after they show symptoms and are diagnosed,” she added.
 

Infusions an initial challenge?

There could be some logistic challenges at first because the antibody is administered via infusion. “We expect there will initially be a challenge in administering ... these infusions and setting up infusion centers,” Woodcock said.

Outpatient intravenous infusions are normally performed at infusion centers for patients with cancer and immune disorders, she noted. “You really don’t want them mixing with people who have COVID-19 disease, so we will need to set up separate sites.”

Bamlanivimab will be provided free of cost to patients, Azar said. Patients should be aware that coinsurance may be required for the infusion.
 

“Fair and equitable” distribution planned

During phase 1 of distribution, the agent will first be allocated to hospitals and hospital-affiliated locations only, John Redd, MD, MPH, chief medical officer, Office of the Assistant Secretary for Preparedness and Response at HHS, said at the press conference.

During phase 2, “there will be expanded distribution to outpatient sites,” he said. In an effort to keep the process transparent, a new website features the latest updates on the distribution of bamlanivimab.

Allocation will be based on two factors: the number of new cases reported in a state or territory in the prior 7 days, and rates of COVID-19 hospitalization during the same period.

Asked why the government would determine distribution of the antibody on the basis of the number of hospitalized patients when the indication includes prevention of admission, Woodcock replied that hospitalization is a surrogate measure that can reflect risk factors in a particular state population, such as obesity, diabetes, or the proportion of older people.

Furthermore, the confirmed cases are a “leading indicator,” she said, that can help identify a steep rise in COVID-19 cases that could indicate more hospitalizations are likely soon. “We don’t want to miss that.”
 

Data underlying the EUA decision

A decrease in hospitalizations or emergency department visits within 28 days of treatment in preclinical studies was “the most important evidence that bamlanivimab may be effective,” the agency noted in the press release announcing the EUA. Among patients at high risk for progression, 3% required such interventions, compared with 10% of placebo-treated patients.

Potential side effects of bamlanivimab include anaphylaxis, infusion-related reactions, nausea, diarrhea, dizziness, headache, itching, and vomiting.

“As illustrated by today’s action, the FDA remains committed to expediting the development and availability of potential COVID-19 treatments and providing sick patients timely access to new therapies where appropriate,” FDA Commissioner Stephen M. Hahn, MD, said in the news release.

Healthcare providers can download a detailed FDA fact sheet on the EUA for bamlanivimab, which includes dosing instructions.
 

This article first appeared on Medscape.com.

Oritavancin is a lipoglycopeptide antibiotic. The US Food and Drug Administration (FDA) approved oritavancin in 2014 for adults with acute bacterial skin and skin structure infections (ABSSSI).¹ The antibiotic is currently FDA approved for infections caused by Gram-positive organisms, including methicillin-resistant and methicillinsusceptible Staphylococcus aureus (MRSA, MSSA), a variety of Streptococcus species, and vancomycin-susceptible Enterococcus faecalis (VSE). Oritavancin demonstrates concentrationdependent bactericidal activity and has a half-life of 245 hours. This half-life allows for treatment of ABSSSI with a single 1,200 mg IV dose, which has been shown to be noninferior to vancomycin dosed twice daily for 7 to 10 days.^1-3

Proposal for Expanded Uses

Although the approved indication for oritavancin is narrow, in vitro studies have shown that oritavancin also has activity against vancomycin-resistant enterococci (VRE), and rabbit studies have demonstrated its excellent bone penetration.^4,5 These findings have raised the question of whether oritavancin can be safely and effectively used for infections such as endocarditis, osteomyelitis, and bacteremia, which are often caused by invasive Grampositive organisms. These types of invasive infections, particularly when MRSA is implicated, generally require IV antibiotic therapy for several weeks, often with vancomycin.⁶

To avoid long hospital stays solely for antibiotic administration, health care practitioners will often use outpatient parenteral antimicrobial therapy (OPAT). However, using OPAT presents many challenges due to the need for frequent dosing, the risk of peripheral or central-line infections, and therapeutic drug monitoring when using vancomycin; additionally, administration and line care oftentimes require caregiver support, which may not be present for all patients.⁷ Concerns also have been raised regarding the use of OPAT in patients with a history of IV drug use due to the potential increased risk of line infections or line abuse. Few studies have explored OPAT in this population, and the Infectious Diseases Society of America OPAT guidelines recommend that the decision to use OPAT should be made on a case-by-case basis.⁷ Thus, patients who are deemed inappropriate for OPAT oftentimes remain hospitalized or reside briefly in nursing facilities solely for antibiotic administration

Oritavancin’s long half-life and potent activity against Gram-positive organisms has led to increased interest in off-label use of infrequent dosing intervals, such as weekly, to treat complicated and invasive infections. Weekly rather than daily dosing would allow for less burdensome antibiotic administration regimens and shorter hospital stays especially for patients who are not candidates for OPAT.

Efficacy of Continued Dosing

This proposed weekly dosing pattern, referred to as continued dosing or a multiple-dose regimen, has gained traction in the literature. To date, no randomized controlled trials have been conducted to assess oritavancin’s efficacy in off-label indications or continued dosing, but several case reports and retrospective cohort analyses show promising outcomes.^8-16 In an analysis of data from the Clinical and Historic Registry and Orbactiv Medical Evaluation (CHROME) patient registry, 32 patients received multiple doses of oritavancin for complicated Gram-positive infections with a 93.8% overall clinical success rate, including success rates of 90.9% (10/11) for general bone and joint infections and 87.5% (7/8) for patients diagnosed specifically with osteomyelitis.⁸

Patients received between 2 and 10 doses of 1,200 mg IV given every 6 to 14 days. Johnson and colleagues report using oritavancin 1,200 mg IV every other day for 3 doses followed by 1,200 mg IV once weekly for a patient with daptomycin- and vancomycin-resistant Enterococcus endocarditis, resulting in negative blood cultures while on therapy.⁹ However, source control via valve replacement and postoperative oritavancin 1,200 mg IV twice weekly for 10 weeks was required to fully clear the infection.

Schulz and colleagues published a retrospective cohort analysis of 17 patients who received multiple doses of oritavancin for complicated bacterial infections, including osteomyelitis, pneumonia, and bacteremia.¹⁰ They reported 100% of patients were either successfully cured or had demonstrable improvements in their infections by using a 1,200 mg IV loading dose followed by 800 mg IV if the second dose was given within 7 days or 1,200 mg IV if the second dose was given more than 10 days later. Patients received between 2 and 18 total doses, with 6 out of 17 (35%) receiving only 2 doses. One patient who received 18 doses was an outlier, as her treatment goal was palliative suppression due to an infected endovascular graft that could not be removed.

In a published case series, 1 of 10 patients receiving oritavancin for invasive Grampositive infections received multiple doses of oritavancin for an MSSA deep tissue infection.¹¹ The 3 total doses (strength not reported) were separated by 19 days and 14 days and resulted in cure. Several case reports and a retrospective chart review study specifically show the effectiveness of oritavancin for osteomyelitis caused by MSSA, MRSA, and VRE.^12-16 However, dosing strategies varied widely after the initial 1,200 mg IV loading dose.

Drug Interactions, Safety, and Tolerability

Oritavancin has minimal drug-drug interactions, the most notable being with anticoagulants. ¹ Use of IV heparin within 120 hours of oritavancin administration can falsely elevate activated partial thromboplastin time (aPTT) levels; therefore, heparin should not be monitored with aPTT during this period. Oritavancin also can artificially prolong international normalized ratio (INR) values for up to 12 hours, and dose adjustments based on INRs during this window are not recommended. Of note, factor Xa laboratory monitoring is unaffected by oritavancin, as it does not depend on phospholipid reagents as do aPTT and INR measurements.

Oritavancin has been shown to be well tolerated when dosed according to both the package insert and continued dosing strategies. The most common adverse effects (AEs) (≥ 3%), occurring at similar rates to vancomycin, are nausea, vomiting, diarrhea, headache, and limb and subcutaneous abscesses.¹ Infusion reactions also have been reported, although they are usually reversible on slowing or stopping the infusion. It is worth noting that the use of oritavancin for osteomyelitis is not recommended in the product labeling, as an increased rate of osteomyelitis was observed in the oritavancin vs IV vancomycin groups for the treatment of patients with acute bacterial skin and skin structure infection (SOLO) trials (0.6% in oritavancin group vs 0.1% in vancomycin group, statistical significance not reported).¹⁷ However, it was postulated that these osteomyelitis cases were likely present, yet not recognized, at baseline and were not the result of administering oritavancin. This conclusion is further corroborated by previously presented research demonstrating successful cure of osteomyelitis with continued dosing strategies.^12-16

Many patients receiving multiple doses of oritavancin did not experience AEs or laboratory abnormalities.^13,15 Four of 17 patients (24%) in one retrospective review experienced AEs, including infusion reactions, anemia, and leukopenia; all were reversible on discontinuation of oritavancin, and contributions of other antibiotics in some cases could not be ruled out.¹⁰ One patient experienced taste disturbance for several hours after each infusion, and a second had documented hearing loss after 3 doses of oritavancin in a 33-day period, though she had received 6 weeks of IV vancomycin prior to oritavancin.^11,12 A patient treated for daptomycin- and vancomycinresistant Enterococcus faecium prosthetic valve endocarditis experienced nausea, anorexia, and minor liver function test (LFT) abnormalities after cumulative oritavancin exposure over 18 weeks.⁹ On discontinuation of the drug, nausea and anorexia improved, and LFTs normalized 11 months later. Overall, AEs reported with continued dosing of oritavancin have been minimal and largely reversible, mimicking the AEs in the product labeling for traditional dosing. This suggests that using a continued dosing strategy may not result in worse or more frequent AEs, though randomized controlled trials are needed to fully ascertain these preliminary findings.

Conclusions

The literature supporting the use of oritavancin beyond single-dose administration for ABSSSI is growing. Continued dosing regimens have been well tolerated and have resulted in clinical cure for many patients with barriers to first-line treatment and complicated or invasive infections. While randomized controlled trials are needed to concretely demonstrate the efficacy and safety of continued dosing of oritavancin, it may fill an important treatment niche in this era of growing antibiotic resistance and increasing complexity of patient cases.

Oritavancin is a lipoglycopeptide antibiotic. The US Food and Drug Administration (FDA) approved oritavancin in 2014 for adults with acute bacterial skin and skin structure infections (ABSSSI).¹ The antibiotic is currently FDA approved for infections caused by Gram-positive organisms, including methicillin-resistant and methicillinsusceptible Staphylococcus aureus (MRSA, MSSA), a variety of Streptococcus species, and vancomycin-susceptible Enterococcus faecalis (VSE). Oritavancin demonstrates concentrationdependent bactericidal activity and has a half-life of 245 hours. This half-life allows for treatment of ABSSSI with a single 1,200 mg IV dose, which has been shown to be noninferior to vancomycin dosed twice daily for 7 to 10 days.^1-3

Proposal for Expanded Uses

Although the approved indication for oritavancin is narrow, in vitro studies have shown that oritavancin also has activity against vancomycin-resistant enterococci (VRE), and rabbit studies have demonstrated its excellent bone penetration.^4,5 These findings have raised the question of whether oritavancin can be safely and effectively used for infections such as endocarditis, osteomyelitis, and bacteremia, which are often caused by invasive Grampositive organisms. These types of invasive infections, particularly when MRSA is implicated, generally require IV antibiotic therapy for several weeks, often with vancomycin.⁶

To avoid long hospital stays solely for antibiotic administration, health care practitioners will often use outpatient parenteral antimicrobial therapy (OPAT). However, using OPAT presents many challenges due to the need for frequent dosing, the risk of peripheral or central-line infections, and therapeutic drug monitoring when using vancomycin; additionally, administration and line care oftentimes require caregiver support, which may not be present for all patients.⁷ Concerns also have been raised regarding the use of OPAT in patients with a history of IV drug use due to the potential increased risk of line infections or line abuse. Few studies have explored OPAT in this population, and the Infectious Diseases Society of America OPAT guidelines recommend that the decision to use OPAT should be made on a case-by-case basis.⁷ Thus, patients who are deemed inappropriate for OPAT oftentimes remain hospitalized or reside briefly in nursing facilities solely for antibiotic administration

Oritavancin’s long half-life and potent activity against Gram-positive organisms has led to increased interest in off-label use of infrequent dosing intervals, such as weekly, to treat complicated and invasive infections. Weekly rather than daily dosing would allow for less burdensome antibiotic administration regimens and shorter hospital stays especially for patients who are not candidates for OPAT.

Efficacy of Continued Dosing

This proposed weekly dosing pattern, referred to as continued dosing or a multiple-dose regimen, has gained traction in the literature. To date, no randomized controlled trials have been conducted to assess oritavancin’s efficacy in off-label indications or continued dosing, but several case reports and retrospective cohort analyses show promising outcomes.^8-16 In an analysis of data from the Clinical and Historic Registry and Orbactiv Medical Evaluation (CHROME) patient registry, 32 patients received multiple doses of oritavancin for complicated Gram-positive infections with a 93.8% overall clinical success rate, including success rates of 90.9% (10/11) for general bone and joint infections and 87.5% (7/8) for patients diagnosed specifically with osteomyelitis.⁸

Patients received between 2 and 10 doses of 1,200 mg IV given every 6 to 14 days. Johnson and colleagues report using oritavancin 1,200 mg IV every other day for 3 doses followed by 1,200 mg IV once weekly for a patient with daptomycin- and vancomycin-resistant Enterococcus endocarditis, resulting in negative blood cultures while on therapy.⁹ However, source control via valve replacement and postoperative oritavancin 1,200 mg IV twice weekly for 10 weeks was required to fully clear the infection.

Schulz and colleagues published a retrospective cohort analysis of 17 patients who received multiple doses of oritavancin for complicated bacterial infections, including osteomyelitis, pneumonia, and bacteremia.¹⁰ They reported 100% of patients were either successfully cured or had demonstrable improvements in their infections by using a 1,200 mg IV loading dose followed by 800 mg IV if the second dose was given within 7 days or 1,200 mg IV if the second dose was given more than 10 days later. Patients received between 2 and 18 total doses, with 6 out of 17 (35%) receiving only 2 doses. One patient who received 18 doses was an outlier, as her treatment goal was palliative suppression due to an infected endovascular graft that could not be removed.

In a published case series, 1 of 10 patients receiving oritavancin for invasive Grampositive infections received multiple doses of oritavancin for an MSSA deep tissue infection.¹¹ The 3 total doses (strength not reported) were separated by 19 days and 14 days and resulted in cure. Several case reports and a retrospective chart review study specifically show the effectiveness of oritavancin for osteomyelitis caused by MSSA, MRSA, and VRE.^12-16 However, dosing strategies varied widely after the initial 1,200 mg IV loading dose.

Drug Interactions, Safety, and Tolerability

Oritavancin has minimal drug-drug interactions, the most notable being with anticoagulants. ¹ Use of IV heparin within 120 hours of oritavancin administration can falsely elevate activated partial thromboplastin time (aPTT) levels; therefore, heparin should not be monitored with aPTT during this period. Oritavancin also can artificially prolong international normalized ratio (INR) values for up to 12 hours, and dose adjustments based on INRs during this window are not recommended. Of note, factor Xa laboratory monitoring is unaffected by oritavancin, as it does not depend on phospholipid reagents as do aPTT and INR measurements.

Oritavancin has been shown to be well tolerated when dosed according to both the package insert and continued dosing strategies. The most common adverse effects (AEs) (≥ 3%), occurring at similar rates to vancomycin, are nausea, vomiting, diarrhea, headache, and limb and subcutaneous abscesses.¹ Infusion reactions also have been reported, although they are usually reversible on slowing or stopping the infusion. It is worth noting that the use of oritavancin for osteomyelitis is not recommended in the product labeling, as an increased rate of osteomyelitis was observed in the oritavancin vs IV vancomycin groups for the treatment of patients with acute bacterial skin and skin structure infection (SOLO) trials (0.6% in oritavancin group vs 0.1% in vancomycin group, statistical significance not reported).¹⁷ However, it was postulated that these osteomyelitis cases were likely present, yet not recognized, at baseline and were not the result of administering oritavancin. This conclusion is further corroborated by previously presented research demonstrating successful cure of osteomyelitis with continued dosing strategies.^12-16

Many patients receiving multiple doses of oritavancin did not experience AEs or laboratory abnormalities.^13,15 Four of 17 patients (24%) in one retrospective review experienced AEs, including infusion reactions, anemia, and leukopenia; all were reversible on discontinuation of oritavancin, and contributions of other antibiotics in some cases could not be ruled out.¹⁰ One patient experienced taste disturbance for several hours after each infusion, and a second had documented hearing loss after 3 doses of oritavancin in a 33-day period, though she had received 6 weeks of IV vancomycin prior to oritavancin.^11,12 A patient treated for daptomycin- and vancomycinresistant Enterococcus faecium prosthetic valve endocarditis experienced nausea, anorexia, and minor liver function test (LFT) abnormalities after cumulative oritavancin exposure over 18 weeks.⁹ On discontinuation of the drug, nausea and anorexia improved, and LFTs normalized 11 months later. Overall, AEs reported with continued dosing of oritavancin have been minimal and largely reversible, mimicking the AEs in the product labeling for traditional dosing. This suggests that using a continued dosing strategy may not result in worse or more frequent AEs, though randomized controlled trials are needed to fully ascertain these preliminary findings.

Conclusions

The literature supporting the use of oritavancin beyond single-dose administration for ABSSSI is growing. Continued dosing regimens have been well tolerated and have resulted in clinical cure for many patients with barriers to first-line treatment and complicated or invasive infections. While randomized controlled trials are needed to concretely demonstrate the efficacy and safety of continued dosing of oritavancin, it may fill an important treatment niche in this era of growing antibiotic resistance and increasing complexity of patient cases.

Oritavancin is a lipoglycopeptide antibiotic. The US Food and Drug Administration (FDA) approved oritavancin in 2014 for adults with acute bacterial skin and skin structure infections (ABSSSI).¹ The antibiotic is currently FDA approved for infections caused by Gram-positive organisms, including methicillin-resistant and methicillinsusceptible Staphylococcus aureus (MRSA, MSSA), a variety of Streptococcus species, and vancomycin-susceptible Enterococcus faecalis (VSE). Oritavancin demonstrates concentrationdependent bactericidal activity and has a half-life of 245 hours. This half-life allows for treatment of ABSSSI with a single 1,200 mg IV dose, which has been shown to be noninferior to vancomycin dosed twice daily for 7 to 10 days.^1-3

Proposal for Expanded Uses

Although the approved indication for oritavancin is narrow, in vitro studies have shown that oritavancin also has activity against vancomycin-resistant enterococci (VRE), and rabbit studies have demonstrated its excellent bone penetration.^4,5 These findings have raised the question of whether oritavancin can be safely and effectively used for infections such as endocarditis, osteomyelitis, and bacteremia, which are often caused by invasive Grampositive organisms. These types of invasive infections, particularly when MRSA is implicated, generally require IV antibiotic therapy for several weeks, often with vancomycin.⁶

To avoid long hospital stays solely for antibiotic administration, health care practitioners will often use outpatient parenteral antimicrobial therapy (OPAT). However, using OPAT presents many challenges due to the need for frequent dosing, the risk of peripheral or central-line infections, and therapeutic drug monitoring when using vancomycin; additionally, administration and line care oftentimes require caregiver support, which may not be present for all patients.⁷ Concerns also have been raised regarding the use of OPAT in patients with a history of IV drug use due to the potential increased risk of line infections or line abuse. Few studies have explored OPAT in this population, and the Infectious Diseases Society of America OPAT guidelines recommend that the decision to use OPAT should be made on a case-by-case basis.⁷ Thus, patients who are deemed inappropriate for OPAT oftentimes remain hospitalized or reside briefly in nursing facilities solely for antibiotic administration

Oritavancin’s long half-life and potent activity against Gram-positive organisms has led to increased interest in off-label use of infrequent dosing intervals, such as weekly, to treat complicated and invasive infections. Weekly rather than daily dosing would allow for less burdensome antibiotic administration regimens and shorter hospital stays especially for patients who are not candidates for OPAT.

Efficacy of Continued Dosing

This proposed weekly dosing pattern, referred to as continued dosing or a multiple-dose regimen, has gained traction in the literature. To date, no randomized controlled trials have been conducted to assess oritavancin’s efficacy in off-label indications or continued dosing, but several case reports and retrospective cohort analyses show promising outcomes.^8-16 In an analysis of data from the Clinical and Historic Registry and Orbactiv Medical Evaluation (CHROME) patient registry, 32 patients received multiple doses of oritavancin for complicated Gram-positive infections with a 93.8% overall clinical success rate, including success rates of 90.9% (10/11) for general bone and joint infections and 87.5% (7/8) for patients diagnosed specifically with osteomyelitis.⁸

Patients received between 2 and 10 doses of 1,200 mg IV given every 6 to 14 days. Johnson and colleagues report using oritavancin 1,200 mg IV every other day for 3 doses followed by 1,200 mg IV once weekly for a patient with daptomycin- and vancomycin-resistant Enterococcus endocarditis, resulting in negative blood cultures while on therapy.⁹ However, source control via valve replacement and postoperative oritavancin 1,200 mg IV twice weekly for 10 weeks was required to fully clear the infection.

Schulz and colleagues published a retrospective cohort analysis of 17 patients who received multiple doses of oritavancin for complicated bacterial infections, including osteomyelitis, pneumonia, and bacteremia.¹⁰ They reported 100% of patients were either successfully cured or had demonstrable improvements in their infections by using a 1,200 mg IV loading dose followed by 800 mg IV if the second dose was given within 7 days or 1,200 mg IV if the second dose was given more than 10 days later. Patients received between 2 and 18 total doses, with 6 out of 17 (35%) receiving only 2 doses. One patient who received 18 doses was an outlier, as her treatment goal was palliative suppression due to an infected endovascular graft that could not be removed.

In a published case series, 1 of 10 patients receiving oritavancin for invasive Grampositive infections received multiple doses of oritavancin for an MSSA deep tissue infection.¹¹ The 3 total doses (strength not reported) were separated by 19 days and 14 days and resulted in cure. Several case reports and a retrospective chart review study specifically show the effectiveness of oritavancin for osteomyelitis caused by MSSA, MRSA, and VRE.^12-16 However, dosing strategies varied widely after the initial 1,200 mg IV loading dose.

Drug Interactions, Safety, and Tolerability

Oritavancin has minimal drug-drug interactions, the most notable being with anticoagulants. ¹ Use of IV heparin within 120 hours of oritavancin administration can falsely elevate activated partial thromboplastin time (aPTT) levels; therefore, heparin should not be monitored with aPTT during this period. Oritavancin also can artificially prolong international normalized ratio (INR) values for up to 12 hours, and dose adjustments based on INRs during this window are not recommended. Of note, factor Xa laboratory monitoring is unaffected by oritavancin, as it does not depend on phospholipid reagents as do aPTT and INR measurements.

Oritavancin has been shown to be well tolerated when dosed according to both the package insert and continued dosing strategies. The most common adverse effects (AEs) (≥ 3%), occurring at similar rates to vancomycin, are nausea, vomiting, diarrhea, headache, and limb and subcutaneous abscesses.¹ Infusion reactions also have been reported, although they are usually reversible on slowing or stopping the infusion. It is worth noting that the use of oritavancin for osteomyelitis is not recommended in the product labeling, as an increased rate of osteomyelitis was observed in the oritavancin vs IV vancomycin groups for the treatment of patients with acute bacterial skin and skin structure infection (SOLO) trials (0.6% in oritavancin group vs 0.1% in vancomycin group, statistical significance not reported).¹⁷ However, it was postulated that these osteomyelitis cases were likely present, yet not recognized, at baseline and were not the result of administering oritavancin. This conclusion is further corroborated by previously presented research demonstrating successful cure of osteomyelitis with continued dosing strategies.^12-16

Many patients receiving multiple doses of oritavancin did not experience AEs or laboratory abnormalities.^13,15 Four of 17 patients (24%) in one retrospective review experienced AEs, including infusion reactions, anemia, and leukopenia; all were reversible on discontinuation of oritavancin, and contributions of other antibiotics in some cases could not be ruled out.¹⁰ One patient experienced taste disturbance for several hours after each infusion, and a second had documented hearing loss after 3 doses of oritavancin in a 33-day period, though she had received 6 weeks of IV vancomycin prior to oritavancin.^11,12 A patient treated for daptomycin- and vancomycinresistant Enterococcus faecium prosthetic valve endocarditis experienced nausea, anorexia, and minor liver function test (LFT) abnormalities after cumulative oritavancin exposure over 18 weeks.⁹ On discontinuation of the drug, nausea and anorexia improved, and LFTs normalized 11 months later. Overall, AEs reported with continued dosing of oritavancin have been minimal and largely reversible, mimicking the AEs in the product labeling for traditional dosing. This suggests that using a continued dosing strategy may not result in worse or more frequent AEs, though randomized controlled trials are needed to fully ascertain these preliminary findings.

Conclusions

The literature supporting the use of oritavancin beyond single-dose administration for ABSSSI is growing. Continued dosing regimens have been well tolerated and have resulted in clinical cure for many patients with barriers to first-line treatment and complicated or invasive infections. While randomized controlled trials are needed to concretely demonstrate the efficacy and safety of continued dosing of oritavancin, it may fill an important treatment niche in this era of growing antibiotic resistance and increasing complexity of patient cases.

Patients with metastatic castrate resistant prostate carcinoma (CRPC) have several treatment options, including radium-223 dichloride (Ra-223) radionuclide therapy, abiraterone, enzalutamide, and cabazitaxel. Ra-223 therapy has been reported to increase median survival in patients with bone metastatic prostate carcinoma.^1,2 However, ERA 223 trial data showed an increase of bone fractures with combination of Ra-223 and abiraterone.³

Agent Orange (AO) exposure has been studied as a potential risk factor for development of prostate carcinoma. AO was a commercially manufactured defoliate that was sprayed extensively during the Vietnam War. Due to a side product of chemical manufacturing, AO was contaminated with the toxin 2,3,7,8-tetrachlorodibenzo-p-dioxin, a putative carcinogen. These dioxins can enter the food chain through soil contamination. There is enough evidence to link AO to hematologic malignancies and several solid tumors, including prostate carcinoma.⁴ Although no real estimates exist for what percentage of Vietnam veterans experienced AO exposure, Surveillance, Epidemiology, and End Results data showed that about 3 million veterans served in Southeast Asia where AO was used extensively in the combat theater. AO has been reported to be positively associated with a 52% increase in risk of prostate carcinoma detection at initial prostate biopsy.⁵

There has been no reported study of treatment efficacy in veterans with AO-related prostate carcinoma. We present a retrospective study of Ra-223 and other therapies in metastatic CRPC. The purpose of this study was to compare response to therapy and survival in veterans exposed to agent orange (AO+) vs veterans who were not exposed to (AO-) in a single US Department of Veteran Affairs (VA) medical center.

Methods

This was a retrospective study of veterans with metastatic CRPC to bones who received Ra-223 radionuclide therapy with standard dose of 50 kBq per kg of body weight and other sequential therapies at VA Pittsburgh Healthcare System (VAPHS) from January 2014 to January 2019. The purpose of this study was to measure difference in treatment outcome between AO+ veterans and AO- veterans.

Eligibility Criteria

All veterans had a history that included bone metastasis CRPC. They could have 2 to 3 small lymphadenopathies but not visceral metastasis. They received a minimum of 3 cycles and a maximum of 6 cycles of Ra-223 therapy, which was given in 4-week intervals. Pretreatment criteria was hemoglobin > 10 g/dL, platelet > 100 × 10⁹/L, and absolute neutrophil counts > 1.5 × 10⁹/L. Other therapies, such as abiraterone, enzalutamide, docetaxel, and cabazitaxel, were administered either after Ra-223 (Ra first) or before Ra-223 therapy (Ra later). Veterans also received androgen deprivation therapy (ADT) with luteinizing hormone releasing hormone (LHRH) agonist (leuprolide acetate) to maintain castrate level of testosterone and bisphosphonates for bone metastasis. Eligible veterans were divided into 2 groups: AO+ and AO-. AO+ veterans are those that were proven to be physically active during the Vietnam War and have been determined by the US government to receive service-connected compensation from the VA. AO- veterans were those who were not exposed to AO.

Statistics

Time to study was calculated from the initiation of Ra-223 therapy. Time to skeletal-related events (SRE), progression of prostate specific antigen (PSA), bone metastasis, and alkaline phosphatase (ALP) were calculated in months, using unpaired t test with 2-tailed P value. Median survival was calculated in months by Kaplan Meier R log-rank test Definition).

Results

Forty-eight veterans with bone metastasis CRPC received Ra-223 therapy. Of those, 34 veterans were eligible for this retrospective study: 17 AO+ veterans and 17 AO- veterans. Mean age of diagnosis was 62 years (AO+) and 69 years (AO-) (P = .005). Mean Gleason score was 8.2 (AO+) and 8.0 (AO-) (P = .705). Veterans received initial therapy at diagnosis of prostate carcinoma, including radical prostatectomy (6 AO+ and 3 AO-), localized radiation therapy (3 AO+ and 5 AO-), and ADT (8 AO+ and 9 AO-) (Table 1).

Mean PSA at the initiation of Ra-223 therapy for AO+ was 92.8 (range, 2-551) and for AO- was 102.3 (range, 4-639; P = .86). Mean Ra-223 dose per cycle for AO+ and AO- was 157 uCi and 113 uCi, respectively. All 34 veterans received ADT (leuprolide acetate), and 30 veterans (16 AO+ and 14 AO-) received bisphosphonates (zoledronic acid or denosumab). A total of 10 veterans (29%) received Ra-223 as a first-line therapy (4 AO+ and 6 AO-), and 24 veterans (71%) received Ra-223 after hormonal or chemotherapy (13 AO+ and 11 AO-).

Discussions

There has been no reported VA study of using Ra-223 and other therapies (hormonal and chemotherapy) in veterans exposed to AO. This is the first retrospective study to compare the response and survival between AO+ and AO- veterans. Even though this study featured a small sample, it is interesting to note the difference between those 2 populations. There was 1 prior study in veterans with prostate carcinoma using radiotherapy (brachytherapy) in early-stage disease. Everly and colleagues reported that AO+ veterans were less likely to remain biochemically controlled compared with AO- and nonveteran patients with prostate carcinoma.⁴

Ansbaugh and colleagues reported that AO was associated with a 75% increase in the risk of Gleason ≥ 7 and a 110% increase in Gleason ≥ 8. AO+ veterans are at risk for the detection of high-grade prostate carcinoma. They also tend to have an average age of diagnosis that is 4 to 5 years younger than AO- veterans.⁶

Our study revealed that AO+ veterans were diagnosed at a younger age (mean 62 years) compared with that of AO- veterans (mean 69 years, P = .005). We also proved that AO veterans have a higher mean Gleason score (8.2) compared with that of AO- veterans (8.0). Veterans received therapy at the time of diagnosis of prostate carcinoma with either radical prostatectomy, radiation therapy, or ADT with leuprolide acetate. Mean PSA at the start of Ra-223 therapy for AO+ was 92.8 (range, 2-551); for AO- was 102.3 (range, 4-639), which is not statistically significant.

Ra-223, an α-emitting radiopharmaceutical, mimics calcium in forming complexes with the bone mineral hydroxyapatite, which specifically targets bone metastases. Ra-223 preferentially targets new bone growth surrounding bone metastases while emitting α particles within the tumor microenvironment. α particles have high linear energy transfer with enhanced ability to induce lethal double-stranded DNA breaks, thus eliciting greater cytotoxic effects on bone-metastatic tumor sites.⁷

In a phase 3, randomized, double-blind, placebo-controlled study by Parker and colleagues (ALSYMPCA study), 921 patients who had received, were not eligible to receive, or declined docetaxel, in a 2:1 ratio, were randomized to receive 6 injections of Ra-223 or matching placebo.² Ra-223 significantly improved overall survival (OS) (median, 14.9 months vs 11.3 months) compared with that of placebo. Ra-223 also prolonged the time to the first symptomatic SRE (median, 15.6 months vs 9.8 months), the time to an increase in the total ALP level (median 7.4 months vs 3.8 months), and the time to an increase in the PSA level (median 3.6 months vs 3.4 months).²

In our study, the mean time to SRE for AO+ was 10.6 months and AO- was 10.3 months (P = .93). Mean time to PSA progression for AO+ was 5.4 months and for AO- was 6.8 months (P = .28). Mean time to bone progression for AO+ and for AO- were 7.6 months and 10.1 months respectively (P = .16). Mean time to ALP progression for AO+ and AO- were 6.3 months and 8.7 months respectively (P = .05). There is a trend of shorter PSA progression, bone progression, and ALP progression in AO+ veterans, though these were not statistically significant due to small sample population. In our study the median survival in for AO- was 18 months and for AO+ was 12 months, which is comparable with median survival of 14.9 months from the ALSYMPCA study.

There were 12 veterans who developed SREs. All received radiation therapy due to bone progression or impending fracture. AO+ veterans developed more SREs (n = 8) when compared with AO- veterans (n = 4). There were more AO- veterans alive (n = 10) than there were AO+ veterans (n = 4). The plausible explanation of this may be due to the aggressive pattern of prostate carcinoma in AO+ veterans (younger age and higher Gleason score).

VAPHS participated in the ERA trial between 2014 and 2016. The trial enrolled 806 patients who were randomly assigned to receive first-line Ra-223 or placebo in addition to abiraterone acetate plus prednisone.³ The study was unblinded prematurely after more fractures and deaths were noted in the Ra-223 and abiraterone group than there were in the placebo and abiraterone group. Median symptomatic SRE was 22.3 months in the Ra-223 group and 26.0 months in the placebo group. Fractures (any grade) occurred in 29% in the Ra-223 group and 11% in the placebo group. It was suggested that Ra-223 could contribute to the risk of osteoporotic fractures in patients with bone metastatic prostate carcinoma. Median OS was 30.7 months in the Ra-223 group and 33.3 months in the placebo group.³

We enrolled 3 veterans in the ERA clinical trial. Two AO+ veterans had SREs at 7 months and 11 months. In our study, the median OS for Ra-223 first line was 32 months, which is comparable with median survival of 30.7 months from ERA-223 study. Median survival for Ra-223 later was only 15 months. We recommend veterans with at least 2 to 3-bone metastasis receive Ra-223 in the first-line setting rather than second- or third-line setting. In this retrospective study with Ra-223 and other therapies, we proved that AO+ veterans have a worse response and OS when compared with that of AO- veterans.

Conclusions

This is the first VA study to compare the efficacy of Ra-223 and other therapies in metastatic CRPC between AO+ and AO- veterans. AO+ veterans were diagnosed at a younger age and had higher Gleason scores. There was no statistical difference between AO+ and AO- veterans in terms of time to SRE, PSA progression, and bone and ALP progression even though there was a trend of shorter duration in AO+ veterans. There was no median survival difference between veterans who received Ra-223 first vs Ra-223 later as well as between AO+ and AO- veterans, but there was a trend of worse survival in veteran who received Ra-223 later and AO+ veterans.

This study showed that AO+ veterans have a shorter duration of response to therapy and shorter median survival compared with that of AO- veterans. We recommend that veterans should get Ra-223 in the first-line setting rather than after hormonal therapy and chemotherapy because their marrows are still intact. We need to investigate further whether veterans that exposed to carcinogen 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) may have different molecular biology and as such may cause inferior efficacy in the treatment of prostate carcinoma.

Patients with metastatic castrate resistant prostate carcinoma (CRPC) have several treatment options, including radium-223 dichloride (Ra-223) radionuclide therapy, abiraterone, enzalutamide, and cabazitaxel. Ra-223 therapy has been reported to increase median survival in patients with bone metastatic prostate carcinoma.^1,2 However, ERA 223 trial data showed an increase of bone fractures with combination of Ra-223 and abiraterone.³

Agent Orange (AO) exposure has been studied as a potential risk factor for development of prostate carcinoma. AO was a commercially manufactured defoliate that was sprayed extensively during the Vietnam War. Due to a side product of chemical manufacturing, AO was contaminated with the toxin 2,3,7,8-tetrachlorodibenzo-p-dioxin, a putative carcinogen. These dioxins can enter the food chain through soil contamination. There is enough evidence to link AO to hematologic malignancies and several solid tumors, including prostate carcinoma.⁴ Although no real estimates exist for what percentage of Vietnam veterans experienced AO exposure, Surveillance, Epidemiology, and End Results data showed that about 3 million veterans served in Southeast Asia where AO was used extensively in the combat theater. AO has been reported to be positively associated with a 52% increase in risk of prostate carcinoma detection at initial prostate biopsy.⁵

There has been no reported study of treatment efficacy in veterans with AO-related prostate carcinoma. We present a retrospective study of Ra-223 and other therapies in metastatic CRPC. The purpose of this study was to compare response to therapy and survival in veterans exposed to agent orange (AO+) vs veterans who were not exposed to (AO-) in a single US Department of Veteran Affairs (VA) medical center.

Methods

This was a retrospective study of veterans with metastatic CRPC to bones who received Ra-223 radionuclide therapy with standard dose of 50 kBq per kg of body weight and other sequential therapies at VA Pittsburgh Healthcare System (VAPHS) from January 2014 to January 2019. The purpose of this study was to measure difference in treatment outcome between AO+ veterans and AO- veterans.

Eligibility Criteria

All veterans had a history that included bone metastasis CRPC. They could have 2 to 3 small lymphadenopathies but not visceral metastasis. They received a minimum of 3 cycles and a maximum of 6 cycles of Ra-223 therapy, which was given in 4-week intervals. Pretreatment criteria was hemoglobin > 10 g/dL, platelet > 100 × 10⁹/L, and absolute neutrophil counts > 1.5 × 10⁹/L. Other therapies, such as abiraterone, enzalutamide, docetaxel, and cabazitaxel, were administered either after Ra-223 (Ra first) or before Ra-223 therapy (Ra later). Veterans also received androgen deprivation therapy (ADT) with luteinizing hormone releasing hormone (LHRH) agonist (leuprolide acetate) to maintain castrate level of testosterone and bisphosphonates for bone metastasis. Eligible veterans were divided into 2 groups: AO+ and AO-. AO+ veterans are those that were proven to be physically active during the Vietnam War and have been determined by the US government to receive service-connected compensation from the VA. AO- veterans were those who were not exposed to AO.

Statistics

Time to study was calculated from the initiation of Ra-223 therapy. Time to skeletal-related events (SRE), progression of prostate specific antigen (PSA), bone metastasis, and alkaline phosphatase (ALP) were calculated in months, using unpaired t test with 2-tailed P value. Median survival was calculated in months by Kaplan Meier R log-rank test Definition).

Results

Forty-eight veterans with bone metastasis CRPC received Ra-223 therapy. Of those, 34 veterans were eligible for this retrospective study: 17 AO+ veterans and 17 AO- veterans. Mean age of diagnosis was 62 years (AO+) and 69 years (AO-) (P = .005). Mean Gleason score was 8.2 (AO+) and 8.0 (AO-) (P = .705). Veterans received initial therapy at diagnosis of prostate carcinoma, including radical prostatectomy (6 AO+ and 3 AO-), localized radiation therapy (3 AO+ and 5 AO-), and ADT (8 AO+ and 9 AO-) (Table 1).

Mean PSA at the initiation of Ra-223 therapy for AO+ was 92.8 (range, 2-551) and for AO- was 102.3 (range, 4-639; P = .86). Mean Ra-223 dose per cycle for AO+ and AO- was 157 uCi and 113 uCi, respectively. All 34 veterans received ADT (leuprolide acetate), and 30 veterans (16 AO+ and 14 AO-) received bisphosphonates (zoledronic acid or denosumab). A total of 10 veterans (29%) received Ra-223 as a first-line therapy (4 AO+ and 6 AO-), and 24 veterans (71%) received Ra-223 after hormonal or chemotherapy (13 AO+ and 11 AO-).

Discussions

There has been no reported VA study of using Ra-223 and other therapies (hormonal and chemotherapy) in veterans exposed to AO. This is the first retrospective study to compare the response and survival between AO+ and AO- veterans. Even though this study featured a small sample, it is interesting to note the difference between those 2 populations. There was 1 prior study in veterans with prostate carcinoma using radiotherapy (brachytherapy) in early-stage disease. Everly and colleagues reported that AO+ veterans were less likely to remain biochemically controlled compared with AO- and nonveteran patients with prostate carcinoma.⁴

Ansbaugh and colleagues reported that AO was associated with a 75% increase in the risk of Gleason ≥ 7 and a 110% increase in Gleason ≥ 8. AO+ veterans are at risk for the detection of high-grade prostate carcinoma. They also tend to have an average age of diagnosis that is 4 to 5 years younger than AO- veterans.⁶

Our study revealed that AO+ veterans were diagnosed at a younger age (mean 62 years) compared with that of AO- veterans (mean 69 years, P = .005). We also proved that AO veterans have a higher mean Gleason score (8.2) compared with that of AO- veterans (8.0). Veterans received therapy at the time of diagnosis of prostate carcinoma with either radical prostatectomy, radiation therapy, or ADT with leuprolide acetate. Mean PSA at the start of Ra-223 therapy for AO+ was 92.8 (range, 2-551); for AO- was 102.3 (range, 4-639), which is not statistically significant.

Ra-223, an α-emitting radiopharmaceutical, mimics calcium in forming complexes with the bone mineral hydroxyapatite, which specifically targets bone metastases. Ra-223 preferentially targets new bone growth surrounding bone metastases while emitting α particles within the tumor microenvironment. α particles have high linear energy transfer with enhanced ability to induce lethal double-stranded DNA breaks, thus eliciting greater cytotoxic effects on bone-metastatic tumor sites.⁷

In a phase 3, randomized, double-blind, placebo-controlled study by Parker and colleagues (ALSYMPCA study), 921 patients who had received, were not eligible to receive, or declined docetaxel, in a 2:1 ratio, were randomized to receive 6 injections of Ra-223 or matching placebo.² Ra-223 significantly improved overall survival (OS) (median, 14.9 months vs 11.3 months) compared with that of placebo. Ra-223 also prolonged the time to the first symptomatic SRE (median, 15.6 months vs 9.8 months), the time to an increase in the total ALP level (median 7.4 months vs 3.8 months), and the time to an increase in the PSA level (median 3.6 months vs 3.4 months).²

In our study, the mean time to SRE for AO+ was 10.6 months and AO- was 10.3 months (P = .93). Mean time to PSA progression for AO+ was 5.4 months and for AO- was 6.8 months (P = .28). Mean time to bone progression for AO+ and for AO- were 7.6 months and 10.1 months respectively (P = .16). Mean time to ALP progression for AO+ and AO- were 6.3 months and 8.7 months respectively (P = .05). There is a trend of shorter PSA progression, bone progression, and ALP progression in AO+ veterans, though these were not statistically significant due to small sample population. In our study the median survival in for AO- was 18 months and for AO+ was 12 months, which is comparable with median survival of 14.9 months from the ALSYMPCA study.

There were 12 veterans who developed SREs. All received radiation therapy due to bone progression or impending fracture. AO+ veterans developed more SREs (n = 8) when compared with AO- veterans (n = 4). There were more AO- veterans alive (n = 10) than there were AO+ veterans (n = 4). The plausible explanation of this may be due to the aggressive pattern of prostate carcinoma in AO+ veterans (younger age and higher Gleason score).

VAPHS participated in the ERA trial between 2014 and 2016. The trial enrolled 806 patients who were randomly assigned to receive first-line Ra-223 or placebo in addition to abiraterone acetate plus prednisone.³ The study was unblinded prematurely after more fractures and deaths were noted in the Ra-223 and abiraterone group than there were in the placebo and abiraterone group. Median symptomatic SRE was 22.3 months in the Ra-223 group and 26.0 months in the placebo group. Fractures (any grade) occurred in 29% in the Ra-223 group and 11% in the placebo group. It was suggested that Ra-223 could contribute to the risk of osteoporotic fractures in patients with bone metastatic prostate carcinoma. Median OS was 30.7 months in the Ra-223 group and 33.3 months in the placebo group.³

We enrolled 3 veterans in the ERA clinical trial. Two AO+ veterans had SREs at 7 months and 11 months. In our study, the median OS for Ra-223 first line was 32 months, which is comparable with median survival of 30.7 months from ERA-223 study. Median survival for Ra-223 later was only 15 months. We recommend veterans with at least 2 to 3-bone metastasis receive Ra-223 in the first-line setting rather than second- or third-line setting. In this retrospective study with Ra-223 and other therapies, we proved that AO+ veterans have a worse response and OS when compared with that of AO- veterans.

Conclusions

This is the first VA study to compare the efficacy of Ra-223 and other therapies in metastatic CRPC between AO+ and AO- veterans. AO+ veterans were diagnosed at a younger age and had higher Gleason scores. There was no statistical difference between AO+ and AO- veterans in terms of time to SRE, PSA progression, and bone and ALP progression even though there was a trend of shorter duration in AO+ veterans. There was no median survival difference between veterans who received Ra-223 first vs Ra-223 later as well as between AO+ and AO- veterans, but there was a trend of worse survival in veteran who received Ra-223 later and AO+ veterans.

This study showed that AO+ veterans have a shorter duration of response to therapy and shorter median survival compared with that of AO- veterans. We recommend that veterans should get Ra-223 in the first-line setting rather than after hormonal therapy and chemotherapy because their marrows are still intact. We need to investigate further whether veterans that exposed to carcinogen 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) may have different molecular biology and as such may cause inferior efficacy in the treatment of prostate carcinoma.

Patients with metastatic castrate resistant prostate carcinoma (CRPC) have several treatment options, including radium-223 dichloride (Ra-223) radionuclide therapy, abiraterone, enzalutamide, and cabazitaxel. Ra-223 therapy has been reported to increase median survival in patients with bone metastatic prostate carcinoma.^1,2 However, ERA 223 trial data showed an increase of bone fractures with combination of Ra-223 and abiraterone.³

Agent Orange (AO) exposure has been studied as a potential risk factor for development of prostate carcinoma. AO was a commercially manufactured defoliate that was sprayed extensively during the Vietnam War. Due to a side product of chemical manufacturing, AO was contaminated with the toxin 2,3,7,8-tetrachlorodibenzo-p-dioxin, a putative carcinogen. These dioxins can enter the food chain through soil contamination. There is enough evidence to link AO to hematologic malignancies and several solid tumors, including prostate carcinoma.⁴ Although no real estimates exist for what percentage of Vietnam veterans experienced AO exposure, Surveillance, Epidemiology, and End Results data showed that about 3 million veterans served in Southeast Asia where AO was used extensively in the combat theater. AO has been reported to be positively associated with a 52% increase in risk of prostate carcinoma detection at initial prostate biopsy.⁵

There has been no reported study of treatment efficacy in veterans with AO-related prostate carcinoma. We present a retrospective study of Ra-223 and other therapies in metastatic CRPC. The purpose of this study was to compare response to therapy and survival in veterans exposed to agent orange (AO+) vs veterans who were not exposed to (AO-) in a single US Department of Veteran Affairs (VA) medical center.

Methods

This was a retrospective study of veterans with metastatic CRPC to bones who received Ra-223 radionuclide therapy with standard dose of 50 kBq per kg of body weight and other sequential therapies at VA Pittsburgh Healthcare System (VAPHS) from January 2014 to January 2019. The purpose of this study was to measure difference in treatment outcome between AO+ veterans and AO- veterans.

Eligibility Criteria

All veterans had a history that included bone metastasis CRPC. They could have 2 to 3 small lymphadenopathies but not visceral metastasis. They received a minimum of 3 cycles and a maximum of 6 cycles of Ra-223 therapy, which was given in 4-week intervals. Pretreatment criteria was hemoglobin > 10 g/dL, platelet > 100 × 10⁹/L, and absolute neutrophil counts > 1.5 × 10⁹/L. Other therapies, such as abiraterone, enzalutamide, docetaxel, and cabazitaxel, were administered either after Ra-223 (Ra first) or before Ra-223 therapy (Ra later). Veterans also received androgen deprivation therapy (ADT) with luteinizing hormone releasing hormone (LHRH) agonist (leuprolide acetate) to maintain castrate level of testosterone and bisphosphonates for bone metastasis. Eligible veterans were divided into 2 groups: AO+ and AO-. AO+ veterans are those that were proven to be physically active during the Vietnam War and have been determined by the US government to receive service-connected compensation from the VA. AO- veterans were those who were not exposed to AO.

Statistics

Time to study was calculated from the initiation of Ra-223 therapy. Time to skeletal-related events (SRE), progression of prostate specific antigen (PSA), bone metastasis, and alkaline phosphatase (ALP) were calculated in months, using unpaired t test with 2-tailed P value. Median survival was calculated in months by Kaplan Meier R log-rank test Definition).

Results

Forty-eight veterans with bone metastasis CRPC received Ra-223 therapy. Of those, 34 veterans were eligible for this retrospective study: 17 AO+ veterans and 17 AO- veterans. Mean age of diagnosis was 62 years (AO+) and 69 years (AO-) (P = .005). Mean Gleason score was 8.2 (AO+) and 8.0 (AO-) (P = .705). Veterans received initial therapy at diagnosis of prostate carcinoma, including radical prostatectomy (6 AO+ and 3 AO-), localized radiation therapy (3 AO+ and 5 AO-), and ADT (8 AO+ and 9 AO-) (Table 1).

Mean PSA at the initiation of Ra-223 therapy for AO+ was 92.8 (range, 2-551) and for AO- was 102.3 (range, 4-639; P = .86). Mean Ra-223 dose per cycle for AO+ and AO- was 157 uCi and 113 uCi, respectively. All 34 veterans received ADT (leuprolide acetate), and 30 veterans (16 AO+ and 14 AO-) received bisphosphonates (zoledronic acid or denosumab). A total of 10 veterans (29%) received Ra-223 as a first-line therapy (4 AO+ and 6 AO-), and 24 veterans (71%) received Ra-223 after hormonal or chemotherapy (13 AO+ and 11 AO-).

Discussions

There has been no reported VA study of using Ra-223 and other therapies (hormonal and chemotherapy) in veterans exposed to AO. This is the first retrospective study to compare the response and survival between AO+ and AO- veterans. Even though this study featured a small sample, it is interesting to note the difference between those 2 populations. There was 1 prior study in veterans with prostate carcinoma using radiotherapy (brachytherapy) in early-stage disease. Everly and colleagues reported that AO+ veterans were less likely to remain biochemically controlled compared with AO- and nonveteran patients with prostate carcinoma.⁴

Ansbaugh and colleagues reported that AO was associated with a 75% increase in the risk of Gleason ≥ 7 and a 110% increase in Gleason ≥ 8. AO+ veterans are at risk for the detection of high-grade prostate carcinoma. They also tend to have an average age of diagnosis that is 4 to 5 years younger than AO- veterans.⁶

Our study revealed that AO+ veterans were diagnosed at a younger age (mean 62 years) compared with that of AO- veterans (mean 69 years, P = .005). We also proved that AO veterans have a higher mean Gleason score (8.2) compared with that of AO- veterans (8.0). Veterans received therapy at the time of diagnosis of prostate carcinoma with either radical prostatectomy, radiation therapy, or ADT with leuprolide acetate. Mean PSA at the start of Ra-223 therapy for AO+ was 92.8 (range, 2-551); for AO- was 102.3 (range, 4-639), which is not statistically significant.

Ra-223, an α-emitting radiopharmaceutical, mimics calcium in forming complexes with the bone mineral hydroxyapatite, which specifically targets bone metastases. Ra-223 preferentially targets new bone growth surrounding bone metastases while emitting α particles within the tumor microenvironment. α particles have high linear energy transfer with enhanced ability to induce lethal double-stranded DNA breaks, thus eliciting greater cytotoxic effects on bone-metastatic tumor sites.⁷

In a phase 3, randomized, double-blind, placebo-controlled study by Parker and colleagues (ALSYMPCA study), 921 patients who had received, were not eligible to receive, or declined docetaxel, in a 2:1 ratio, were randomized to receive 6 injections of Ra-223 or matching placebo.² Ra-223 significantly improved overall survival (OS) (median, 14.9 months vs 11.3 months) compared with that of placebo. Ra-223 also prolonged the time to the first symptomatic SRE (median, 15.6 months vs 9.8 months), the time to an increase in the total ALP level (median 7.4 months vs 3.8 months), and the time to an increase in the PSA level (median 3.6 months vs 3.4 months).²

In our study, the mean time to SRE for AO+ was 10.6 months and AO- was 10.3 months (P = .93). Mean time to PSA progression for AO+ was 5.4 months and for AO- was 6.8 months (P = .28). Mean time to bone progression for AO+ and for AO- were 7.6 months and 10.1 months respectively (P = .16). Mean time to ALP progression for AO+ and AO- were 6.3 months and 8.7 months respectively (P = .05). There is a trend of shorter PSA progression, bone progression, and ALP progression in AO+ veterans, though these were not statistically significant due to small sample population. In our study the median survival in for AO- was 18 months and for AO+ was 12 months, which is comparable with median survival of 14.9 months from the ALSYMPCA study.

There were 12 veterans who developed SREs. All received radiation therapy due to bone progression or impending fracture. AO+ veterans developed more SREs (n = 8) when compared with AO- veterans (n = 4). There were more AO- veterans alive (n = 10) than there were AO+ veterans (n = 4). The plausible explanation of this may be due to the aggressive pattern of prostate carcinoma in AO+ veterans (younger age and higher Gleason score).

VAPHS participated in the ERA trial between 2014 and 2016. The trial enrolled 806 patients who were randomly assigned to receive first-line Ra-223 or placebo in addition to abiraterone acetate plus prednisone.³ The study was unblinded prematurely after more fractures and deaths were noted in the Ra-223 and abiraterone group than there were in the placebo and abiraterone group. Median symptomatic SRE was 22.3 months in the Ra-223 group and 26.0 months in the placebo group. Fractures (any grade) occurred in 29% in the Ra-223 group and 11% in the placebo group. It was suggested that Ra-223 could contribute to the risk of osteoporotic fractures in patients with bone metastatic prostate carcinoma. Median OS was 30.7 months in the Ra-223 group and 33.3 months in the placebo group.³

We enrolled 3 veterans in the ERA clinical trial. Two AO+ veterans had SREs at 7 months and 11 months. In our study, the median OS for Ra-223 first line was 32 months, which is comparable with median survival of 30.7 months from ERA-223 study. Median survival for Ra-223 later was only 15 months. We recommend veterans with at least 2 to 3-bone metastasis receive Ra-223 in the first-line setting rather than second- or third-line setting. In this retrospective study with Ra-223 and other therapies, we proved that AO+ veterans have a worse response and OS when compared with that of AO- veterans.

Conclusions

This is the first VA study to compare the efficacy of Ra-223 and other therapies in metastatic CRPC between AO+ and AO- veterans. AO+ veterans were diagnosed at a younger age and had higher Gleason scores. There was no statistical difference between AO+ and AO- veterans in terms of time to SRE, PSA progression, and bone and ALP progression even though there was a trend of shorter duration in AO+ veterans. There was no median survival difference between veterans who received Ra-223 first vs Ra-223 later as well as between AO+ and AO- veterans, but there was a trend of worse survival in veteran who received Ra-223 later and AO+ veterans.

This study showed that AO+ veterans have a shorter duration of response to therapy and shorter median survival compared with that of AO- veterans. We recommend that veterans should get Ra-223 in the first-line setting rather than after hormonal therapy and chemotherapy because their marrows are still intact. We need to investigate further whether veterans that exposed to carcinogen 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) may have different molecular biology and as such may cause inferior efficacy in the treatment of prostate carcinoma.

When selecting pharmacotherapy for patients with bipolar disorder, clinical and prognostic correlates will ultimately influence what treatments make the most sense for a patient – but the process is a balancing act, according to Joseph F. Goldberg, MD.

“Everything we do in medicine in general, and psychiatry, and bipolar disorder in particular is a risk-benefit analysis,” Dr. Goldberg said at the virtual Psychopharmacology Update presented by Current Psychiatry and Global Academy for Medical Education. “Everything has its side effects. We’re always balancing risks and benefits.”

Patients with bipolar disorder often present with three common subtypes of the illness: Those who have associated psychosis, comorbid anxiety disorders, and comorbid ADHD. “These are three common presentations of the many, many kinds of presentations,” said Dr. Goldberg, clinical professor of psychiatry at the Icahn School of Medicine at Mount Sinai in New York.

Bipolar disorder with associated psychosis

In the case of bipolar I disorder, more than 50% of manic episodes have some element of psychosis, with as many as 10% of patients showing signs of delusions 2 years after an episode, Dr. Goldberg explained. In these patients, mania relapse is predicted by mood-incongruent psychosis – a condition usually associated with schizophrenia, he said.

“If [they] have unusual beliefs and ideas, and they’re not consistent with a particular mood state, we sometimes clinically think this sounds more like a primary psychotic process,” he said. “Maybe, but not necessarily. So just because the patient may say, ‘The FBI is after me,’ or, ‘My thoughts are being read over the Internet,’ and they don’t connect that with a grandiose theme, it doesn’t negate a diagnosis of bipolar disorder.”

Psychotic mania is also associated with comorbid anxiety disorder. About half of patients with bipolar I disorder will also experience impairments of attention, executive functioning, and verbal memory separately from ADHD. “The cognitive symptoms of bipolar disorder that are part of what’s inherited doesn’t seem to be the case, that there’s a clear greater degree of neuropsychological impairment in psychotic than nonpsychotic mania,” Dr. Goldberg said.

Lithium has a poor response in the presence of psychosis in patients with bipolar disorder but performs better when the patient receives it alongside an antipsychotic. “Lithium does have value in psychotic mania,” Dr. Goldberg said. “Psychosis would be a negative prognostic sign, and certainly an indication for including an antipsychotic.”

In contrast to lithium, divalproex has shown evidence in reducing manic and psychotic symptoms similarly to haloperidol. “Divalproex may reduce mania symptoms, whether or not it’s helping psychosis. You’d think you have to get both reduced at the same time, but actually can see that even if there’s baseline psychosis, that does not diminish the chance of seeing a reduction in core mania symptoms,” Dr. Goldberg said.

Carbamazepine may also be advantageous to use over lithium when patients present with delusions, and a combination of carbamazepine and lithium may be comparable to haloperidol in combination with lithium when treating psychotic mania. “What we do know is, at least in some studies, there may be some greater value in treating psychotic mania with carbamazepine as compared to lithium, particularly when there are delusions present, more so than hallucinations or formal thought disorder,” Dr. Goldberg said.

In patients with bipolar disorder and associated psychotic mania, clinicians should avoid dopamine agonists such as amphetamine and pramipexole, as well as ketamine. While some evidence has shown that second-generation antipsychotics work to treat bipolar depression, “there’s not really an evidence base to suggest that first-generation antipsychotics are protective against depression,” Dr. Goldberg said.
 

Bipolar disorder with anxiety

An association exists between comorbid anxiety disorders in patients with bipolar disorder and having a younger age of onset, in people who are less likely to recover from an initial mood episode, in people with poorer quality of life and role functioning, and in people who are less euthymic and more likely to attempt suicide, Dr. Goldberg said.

In addition, some patients may demonstrate symptoms of anxiety that aren’t part of the DSM-5 criteria for an anxiety disorder. Dr. Goldberg said he asks his patients to specify what they mean when they say they feel anxious.

“I always ask patients to tell me in very basic terms what [they] mean by anxiety. If they say, ‘I just I can’t sit still; I’m very fidgety,’ maybe that’s akathisia,” he said. “Or maybe if they say they’re very anxious, what they mean is they have so much energy they can’t contain it. This is mania or hypomania that they’re misconstruing as anxiety. We have to be very diligent and vigilant in clarifying the language here.”

To treat comorbid anxiety in patients with bipolar disorder, consider adjunctive olanzapine or lamotrigine, as both have evidence of anxiolytic efficacy. “Olanzapine does count as an antianxiety agent. Would you use it just as an antianxiety agent? Probably not in and of itself, but there’s other compelling reasons to use it,” he said. Before assuming you need to add another medication to address anxiety in a patient, “step back and think perhaps their anxiety symptoms will in themselves remit with olanzapine,” he said. Olanzapine can also be potentially used in cases where a patient has mania and anxiety to treat both conditions, he added.

Divalproex is another option for patients that has anxiolytic efficacy. “In the context of bipolar depression, divalproex does have antianxiety properties,” Dr. Goldberg said. Other anxiolytic options include lurasidone, cariprazine, quetiapine, and combination olanzapine–fluoxetine.
 

Bipolar disorder and ADHD

Among patients with bipolar disorder and comorbid adult ADHD, cognitive dysfunction inherent to bipolar disorder may be difficult to distinguish from signs of ADHD, Dr. Goldberg explained, with about 20% of people with bipolar I disorder and about 30% of people with bipolar II disorder have deficits of attentional processing, verbal memory, and executive functioning.

“Some researchers are very intrigued by the notion that cognitive problems and attentional problems aren’t necessarily a sign of [ADHD] comorbidities. They might be, but they may just be part of the endophenotype or the non-overt, genetically driven phenomenology that makes bipolar disorder so heterogeneous,” he said.

Patients with bipolar disorder and comorbid ADHD are more likely to have mania than depression, the condition is more common in men, and these patients are more likely to have substance use problems, increased risk of suicide attempts, problems in school, lower socioeconomic status, greater unemployment history, higher divorce rates, and low family history of bipolar disorder. Clinicians should check a patient’s history if they suspect comorbid adult ADHD in their patients with bipolar disorder, as there is a good chance evidence of ADHD will be present around the time of adolescence.

“You don’t wake up with [ADHD] at age 40, at least that’s not the prevailing perspective,” Dr. Goldberg said.

Focus on the ADHD symptoms that do not overlap with bipolar disorder, such as nondiscrete, chronic symptoms; lack of psychosis and suicidality; no evidence of grandiose beliefs; lack of hypersexuality; and depression that is not prominent. “You really need to go back in time and get some clarity as to the longitudinal course. If this was present earlier on and it persists into adulthood and it’s not better accounted for by either what we think of as the cognitive pervasive problems that emerge in bipolar disorder, or in relatives as a collaborator for attentional problems and bipolar disorder, we can then contemplate [whether] there’s a plausible basis for using a stimulant or [other ADHD] treatment,” he said.

In patients who are found to have adult comorbid ADHD and are nonmanic and nonpsychotic, stimulants do have an effect. Studies suggest that amphetamines such as adjunctive lisdexamfetamine added to a mood stabilizer show an improvement in ADHD symptoms after 4 weeks (Hum Psychopharmacol. 2013; 28[5]:421-7).

Adjunctive methylphenidate added to a mood stabilizer has also shown evidence of not causing treatment-emergent mania. “If you’re going to use methylphenidate, make sure it’s in the context of an antimanic mood stabilizer,” Dr. Goldberg said. In one study, methylphenidate without a mood stabilizer caused an increase in manic episodes within 3 months (Am J Psychiatry. 2017 Apr 1;174:341-8).

“All may pose safe and effective evidence-based, albeit provisional, but evidence-based options to consider in targeting the attentional symptoms in patients with bipolar disorder,” Dr. Goldberg said.

He reported that he has been a consultant for BioXcel Therapeutics, Medscape/WebMD, Otsuka, and Sage Therapeutics. In addition, Dr. Goldberg is on the speakers bureau for Allergan, Neurocrine, Otsuka, and Sunovion; and receives royalties from American Psychiatric Publishing. Global Academy and this news organization are owned by the same parent company.

When selecting pharmacotherapy for patients with bipolar disorder, clinical and prognostic correlates will ultimately influence what treatments make the most sense for a patient – but the process is a balancing act, according to Joseph F. Goldberg, MD.

“Everything we do in medicine in general, and psychiatry, and bipolar disorder in particular is a risk-benefit analysis,” Dr. Goldberg said at the virtual Psychopharmacology Update presented by Current Psychiatry and Global Academy for Medical Education. “Everything has its side effects. We’re always balancing risks and benefits.”

Patients with bipolar disorder often present with three common subtypes of the illness: Those who have associated psychosis, comorbid anxiety disorders, and comorbid ADHD. “These are three common presentations of the many, many kinds of presentations,” said Dr. Goldberg, clinical professor of psychiatry at the Icahn School of Medicine at Mount Sinai in New York.

Bipolar disorder with associated psychosis

In the case of bipolar I disorder, more than 50% of manic episodes have some element of psychosis, with as many as 10% of patients showing signs of delusions 2 years after an episode, Dr. Goldberg explained. In these patients, mania relapse is predicted by mood-incongruent psychosis – a condition usually associated with schizophrenia, he said.

“If [they] have unusual beliefs and ideas, and they’re not consistent with a particular mood state, we sometimes clinically think this sounds more like a primary psychotic process,” he said. “Maybe, but not necessarily. So just because the patient may say, ‘The FBI is after me,’ or, ‘My thoughts are being read over the Internet,’ and they don’t connect that with a grandiose theme, it doesn’t negate a diagnosis of bipolar disorder.”

Psychotic mania is also associated with comorbid anxiety disorder. About half of patients with bipolar I disorder will also experience impairments of attention, executive functioning, and verbal memory separately from ADHD. “The cognitive symptoms of bipolar disorder that are part of what’s inherited doesn’t seem to be the case, that there’s a clear greater degree of neuropsychological impairment in psychotic than nonpsychotic mania,” Dr. Goldberg said.

Lithium has a poor response in the presence of psychosis in patients with bipolar disorder but performs better when the patient receives it alongside an antipsychotic. “Lithium does have value in psychotic mania,” Dr. Goldberg said. “Psychosis would be a negative prognostic sign, and certainly an indication for including an antipsychotic.”

In contrast to lithium, divalproex has shown evidence in reducing manic and psychotic symptoms similarly to haloperidol. “Divalproex may reduce mania symptoms, whether or not it’s helping psychosis. You’d think you have to get both reduced at the same time, but actually can see that even if there’s baseline psychosis, that does not diminish the chance of seeing a reduction in core mania symptoms,” Dr. Goldberg said.

Carbamazepine may also be advantageous to use over lithium when patients present with delusions, and a combination of carbamazepine and lithium may be comparable to haloperidol in combination with lithium when treating psychotic mania. “What we do know is, at least in some studies, there may be some greater value in treating psychotic mania with carbamazepine as compared to lithium, particularly when there are delusions present, more so than hallucinations or formal thought disorder,” Dr. Goldberg said.

In patients with bipolar disorder and associated psychotic mania, clinicians should avoid dopamine agonists such as amphetamine and pramipexole, as well as ketamine. While some evidence has shown that second-generation antipsychotics work to treat bipolar depression, “there’s not really an evidence base to suggest that first-generation antipsychotics are protective against depression,” Dr. Goldberg said.
 

Bipolar disorder with anxiety

An association exists between comorbid anxiety disorders in patients with bipolar disorder and having a younger age of onset, in people who are less likely to recover from an initial mood episode, in people with poorer quality of life and role functioning, and in people who are less euthymic and more likely to attempt suicide, Dr. Goldberg said.

In addition, some patients may demonstrate symptoms of anxiety that aren’t part of the DSM-5 criteria for an anxiety disorder. Dr. Goldberg said he asks his patients to specify what they mean when they say they feel anxious.

“I always ask patients to tell me in very basic terms what [they] mean by anxiety. If they say, ‘I just I can’t sit still; I’m very fidgety,’ maybe that’s akathisia,” he said. “Or maybe if they say they’re very anxious, what they mean is they have so much energy they can’t contain it. This is mania or hypomania that they’re misconstruing as anxiety. We have to be very diligent and vigilant in clarifying the language here.”

To treat comorbid anxiety in patients with bipolar disorder, consider adjunctive olanzapine or lamotrigine, as both have evidence of anxiolytic efficacy. “Olanzapine does count as an antianxiety agent. Would you use it just as an antianxiety agent? Probably not in and of itself, but there’s other compelling reasons to use it,” he said. Before assuming you need to add another medication to address anxiety in a patient, “step back and think perhaps their anxiety symptoms will in themselves remit with olanzapine,” he said. Olanzapine can also be potentially used in cases where a patient has mania and anxiety to treat both conditions, he added.

Divalproex is another option for patients that has anxiolytic efficacy. “In the context of bipolar depression, divalproex does have antianxiety properties,” Dr. Goldberg said. Other anxiolytic options include lurasidone, cariprazine, quetiapine, and combination olanzapine–fluoxetine.
 

Bipolar disorder and ADHD

Among patients with bipolar disorder and comorbid adult ADHD, cognitive dysfunction inherent to bipolar disorder may be difficult to distinguish from signs of ADHD, Dr. Goldberg explained, with about 20% of people with bipolar I disorder and about 30% of people with bipolar II disorder have deficits of attentional processing, verbal memory, and executive functioning.

“Some researchers are very intrigued by the notion that cognitive problems and attentional problems aren’t necessarily a sign of [ADHD] comorbidities. They might be, but they may just be part of the endophenotype or the non-overt, genetically driven phenomenology that makes bipolar disorder so heterogeneous,” he said.

Patients with bipolar disorder and comorbid ADHD are more likely to have mania than depression, the condition is more common in men, and these patients are more likely to have substance use problems, increased risk of suicide attempts, problems in school, lower socioeconomic status, greater unemployment history, higher divorce rates, and low family history of bipolar disorder. Clinicians should check a patient’s history if they suspect comorbid adult ADHD in their patients with bipolar disorder, as there is a good chance evidence of ADHD will be present around the time of adolescence.

“You don’t wake up with [ADHD] at age 40, at least that’s not the prevailing perspective,” Dr. Goldberg said.

Focus on the ADHD symptoms that do not overlap with bipolar disorder, such as nondiscrete, chronic symptoms; lack of psychosis and suicidality; no evidence of grandiose beliefs; lack of hypersexuality; and depression that is not prominent. “You really need to go back in time and get some clarity as to the longitudinal course. If this was present earlier on and it persists into adulthood and it’s not better accounted for by either what we think of as the cognitive pervasive problems that emerge in bipolar disorder, or in relatives as a collaborator for attentional problems and bipolar disorder, we can then contemplate [whether] there’s a plausible basis for using a stimulant or [other ADHD] treatment,” he said.

In patients who are found to have adult comorbid ADHD and are nonmanic and nonpsychotic, stimulants do have an effect. Studies suggest that amphetamines such as adjunctive lisdexamfetamine added to a mood stabilizer show an improvement in ADHD symptoms after 4 weeks (Hum Psychopharmacol. 2013; 28[5]:421-7).

Adjunctive methylphenidate added to a mood stabilizer has also shown evidence of not causing treatment-emergent mania. “If you’re going to use methylphenidate, make sure it’s in the context of an antimanic mood stabilizer,” Dr. Goldberg said. In one study, methylphenidate without a mood stabilizer caused an increase in manic episodes within 3 months (Am J Psychiatry. 2017 Apr 1;174:341-8).

“All may pose safe and effective evidence-based, albeit provisional, but evidence-based options to consider in targeting the attentional symptoms in patients with bipolar disorder,” Dr. Goldberg said.

He reported that he has been a consultant for BioXcel Therapeutics, Medscape/WebMD, Otsuka, and Sage Therapeutics. In addition, Dr. Goldberg is on the speakers bureau for Allergan, Neurocrine, Otsuka, and Sunovion; and receives royalties from American Psychiatric Publishing. Global Academy and this news organization are owned by the same parent company.

When selecting pharmacotherapy for patients with bipolar disorder, clinical and prognostic correlates will ultimately influence what treatments make the most sense for a patient – but the process is a balancing act, according to Joseph F. Goldberg, MD.

“Everything we do in medicine in general, and psychiatry, and bipolar disorder in particular is a risk-benefit analysis,” Dr. Goldberg said at the virtual Psychopharmacology Update presented by Current Psychiatry and Global Academy for Medical Education. “Everything has its side effects. We’re always balancing risks and benefits.”

Patients with bipolar disorder often present with three common subtypes of the illness: Those who have associated psychosis, comorbid anxiety disorders, and comorbid ADHD. “These are three common presentations of the many, many kinds of presentations,” said Dr. Goldberg, clinical professor of psychiatry at the Icahn School of Medicine at Mount Sinai in New York.

Bipolar disorder with associated psychosis

In the case of bipolar I disorder, more than 50% of manic episodes have some element of psychosis, with as many as 10% of patients showing signs of delusions 2 years after an episode, Dr. Goldberg explained. In these patients, mania relapse is predicted by mood-incongruent psychosis – a condition usually associated with schizophrenia, he said.

“If [they] have unusual beliefs and ideas, and they’re not consistent with a particular mood state, we sometimes clinically think this sounds more like a primary psychotic process,” he said. “Maybe, but not necessarily. So just because the patient may say, ‘The FBI is after me,’ or, ‘My thoughts are being read over the Internet,’ and they don’t connect that with a grandiose theme, it doesn’t negate a diagnosis of bipolar disorder.”

Psychotic mania is also associated with comorbid anxiety disorder. About half of patients with bipolar I disorder will also experience impairments of attention, executive functioning, and verbal memory separately from ADHD. “The cognitive symptoms of bipolar disorder that are part of what’s inherited doesn’t seem to be the case, that there’s a clear greater degree of neuropsychological impairment in psychotic than nonpsychotic mania,” Dr. Goldberg said.

Lithium has a poor response in the presence of psychosis in patients with bipolar disorder but performs better when the patient receives it alongside an antipsychotic. “Lithium does have value in psychotic mania,” Dr. Goldberg said. “Psychosis would be a negative prognostic sign, and certainly an indication for including an antipsychotic.”

In contrast to lithium, divalproex has shown evidence in reducing manic and psychotic symptoms similarly to haloperidol. “Divalproex may reduce mania symptoms, whether or not it’s helping psychosis. You’d think you have to get both reduced at the same time, but actually can see that even if there’s baseline psychosis, that does not diminish the chance of seeing a reduction in core mania symptoms,” Dr. Goldberg said.

Carbamazepine may also be advantageous to use over lithium when patients present with delusions, and a combination of carbamazepine and lithium may be comparable to haloperidol in combination with lithium when treating psychotic mania. “What we do know is, at least in some studies, there may be some greater value in treating psychotic mania with carbamazepine as compared to lithium, particularly when there are delusions present, more so than hallucinations or formal thought disorder,” Dr. Goldberg said.

In patients with bipolar disorder and associated psychotic mania, clinicians should avoid dopamine agonists such as amphetamine and pramipexole, as well as ketamine. While some evidence has shown that second-generation antipsychotics work to treat bipolar depression, “there’s not really an evidence base to suggest that first-generation antipsychotics are protective against depression,” Dr. Goldberg said.
 

Bipolar disorder with anxiety

An association exists between comorbid anxiety disorders in patients with bipolar disorder and having a younger age of onset, in people who are less likely to recover from an initial mood episode, in people with poorer quality of life and role functioning, and in people who are less euthymic and more likely to attempt suicide, Dr. Goldberg said.

In addition, some patients may demonstrate symptoms of anxiety that aren’t part of the DSM-5 criteria for an anxiety disorder. Dr. Goldberg said he asks his patients to specify what they mean when they say they feel anxious.

“I always ask patients to tell me in very basic terms what [they] mean by anxiety. If they say, ‘I just I can’t sit still; I’m very fidgety,’ maybe that’s akathisia,” he said. “Or maybe if they say they’re very anxious, what they mean is they have so much energy they can’t contain it. This is mania or hypomania that they’re misconstruing as anxiety. We have to be very diligent and vigilant in clarifying the language here.”

To treat comorbid anxiety in patients with bipolar disorder, consider adjunctive olanzapine or lamotrigine, as both have evidence of anxiolytic efficacy. “Olanzapine does count as an antianxiety agent. Would you use it just as an antianxiety agent? Probably not in and of itself, but there’s other compelling reasons to use it,” he said. Before assuming you need to add another medication to address anxiety in a patient, “step back and think perhaps their anxiety symptoms will in themselves remit with olanzapine,” he said. Olanzapine can also be potentially used in cases where a patient has mania and anxiety to treat both conditions, he added.

Divalproex is another option for patients that has anxiolytic efficacy. “In the context of bipolar depression, divalproex does have antianxiety properties,” Dr. Goldberg said. Other anxiolytic options include lurasidone, cariprazine, quetiapine, and combination olanzapine–fluoxetine.
 

Bipolar disorder and ADHD

Among patients with bipolar disorder and comorbid adult ADHD, cognitive dysfunction inherent to bipolar disorder may be difficult to distinguish from signs of ADHD, Dr. Goldberg explained, with about 20% of people with bipolar I disorder and about 30% of people with bipolar II disorder have deficits of attentional processing, verbal memory, and executive functioning.

“Some researchers are very intrigued by the notion that cognitive problems and attentional problems aren’t necessarily a sign of [ADHD] comorbidities. They might be, but they may just be part of the endophenotype or the non-overt, genetically driven phenomenology that makes bipolar disorder so heterogeneous,” he said.

Patients with bipolar disorder and comorbid ADHD are more likely to have mania than depression, the condition is more common in men, and these patients are more likely to have substance use problems, increased risk of suicide attempts, problems in school, lower socioeconomic status, greater unemployment history, higher divorce rates, and low family history of bipolar disorder. Clinicians should check a patient’s history if they suspect comorbid adult ADHD in their patients with bipolar disorder, as there is a good chance evidence of ADHD will be present around the time of adolescence.

“You don’t wake up with [ADHD] at age 40, at least that’s not the prevailing perspective,” Dr. Goldberg said.

Focus on the ADHD symptoms that do not overlap with bipolar disorder, such as nondiscrete, chronic symptoms; lack of psychosis and suicidality; no evidence of grandiose beliefs; lack of hypersexuality; and depression that is not prominent. “You really need to go back in time and get some clarity as to the longitudinal course. If this was present earlier on and it persists into adulthood and it’s not better accounted for by either what we think of as the cognitive pervasive problems that emerge in bipolar disorder, or in relatives as a collaborator for attentional problems and bipolar disorder, we can then contemplate [whether] there’s a plausible basis for using a stimulant or [other ADHD] treatment,” he said.

In patients who are found to have adult comorbid ADHD and are nonmanic and nonpsychotic, stimulants do have an effect. Studies suggest that amphetamines such as adjunctive lisdexamfetamine added to a mood stabilizer show an improvement in ADHD symptoms after 4 weeks (Hum Psychopharmacol. 2013; 28[5]:421-7).

Adjunctive methylphenidate added to a mood stabilizer has also shown evidence of not causing treatment-emergent mania. “If you’re going to use methylphenidate, make sure it’s in the context of an antimanic mood stabilizer,” Dr. Goldberg said. In one study, methylphenidate without a mood stabilizer caused an increase in manic episodes within 3 months (Am J Psychiatry. 2017 Apr 1;174:341-8).

“All may pose safe and effective evidence-based, albeit provisional, but evidence-based options to consider in targeting the attentional symptoms in patients with bipolar disorder,” Dr. Goldberg said.

He reported that he has been a consultant for BioXcel Therapeutics, Medscape/WebMD, Otsuka, and Sage Therapeutics. In addition, Dr. Goldberg is on the speakers bureau for Allergan, Neurocrine, Otsuka, and Sunovion; and receives royalties from American Psychiatric Publishing. Global Academy and this news organization are owned by the same parent company.

Plagued by false starts, a few dashed hopes, but with perhaps a glimmer of light on the horizon, the race to find an effective treatment for COVID-19 continues. At last count, more than 300 treatments and 200 vaccines were in preclinical or clinical development (not to mention the numerous existing agents that are being evaluated for repurposing).

There is also a renewed interest in cannabinoid therapeutics — in particular, the nonpsychoactive agent cannabidiol (CBD) and the prospect of its modulating inflammatory and other disease-associated clinical indices, including SARS-CoV-2–induced viral load, hyperinflammation, the cytokine storm, and acute respiratory distress syndrome (ARDS).

Long hobbled by regulatory, political, and financial barriers, CBD’s potential ability to knock back COVID-19–related inflammation might just open doors that have been closed for years to CBD researchers.
 

Why CBD and why now?

CBD and the resulting therapeutics have been plagued by a complicated association with recreational cannabis use. It’s been just 2 years since CBD-based therapeutics moved into mainstream medicine — the US Food and Drug Administration (FDA) approved Epidiolex oral solution for the treatment of Lennox-Gastaut syndrome and Dravet syndrome, and in August, the FDA approved it for tuberous sclerosis complex.

CBD’s mechanism of action has not been fully elucidated, but on the basis of its role in immune responses — well described in research spanning more than two decades — it›s not surprising that cannabinoid researchers have thrown their hats into the COVID-19 drug development ring.

The anti-inflammatory potential of CBD is substantial and appears to be related to the fact that it shares 20 protein targets common to inflammation-related pathways, Jenny Wilkerson, PhD, research assistant professor at the University of Florida School of Pharmacy, Gainesville, Florida, explained to Medscape Medical News.

Among the various trials that are currently recruiting or are underway is one that is slated for completion this fall. CANDIDATE (Cannabidiol for COVID-19 Patients With Mild-to-Moderate COVID-19) is a randomized, controlled, double-blind study led by Brazilian researchers at the University of São Paulo. The study, which began recruitment this past August, enrolled 100 patients, 50 in the active treatment group (who received capsulated CBD 300 mg daily for 14 days plus pharmacologic therapy [antipyretics] and clinical measures) and 50 who received placebo.

The primary outcome is intended to help clarify the potential role of oral CBD for preventing COVID-19 disease progression, modifying disease-associated clinical indices, and modulating inflammatory parameters, such as the cytokine storm, according to lead investigator Jose Alexandre de Souza Crippa, MD, PhD, professor of neuropsychology at the Ribeirao Preto Medical School at the University of São Paulo in Brazil, in the description of the study on clinicaltrials.gov. Crippa declined to provide any additional information about the trial in an email to Medscape Medical News.
 

Calming or preventing the storm

While Crippa and colleagues wrap up their CBD trial in South America, several North American and Canadian researchers are seeking to clarify and address one of the most therapeutically challenging aspects of SARS-CoV-2 infection — the lung macrophage–orchestrated hyperinflammatory response.

Although hyperinflammation is not unique to SARS-CoV-2 infection, disease severity and COVID-19–related mortality have been linked to this rapid and prolonged surge of inflammatory cytokines (eg, interleukin 6 [IL-6], IL-10, tumor necrosis factors [TNF], and chemokines) and the cytokine storm.

“When you stimulate CB2 receptors (involved in fighting inflammation), you get a release of the same inflammatory cytokines that are involved in COVID,” Cecilia Costiniuk, MD, associate professor and researcher at the Research Institute of the McGill University Health Center, Montreal, Canada, told Medscape Medical News.

“So, if you can act on this receptor, you might be able to reduce the release of those damaging cytokines that are causing ARDS, lung damage, etc,” she explained. Targeting these inflammatory mediators has been a key strategy in research aimed at reducing COVID-19 severity and related mortality, which is where CBD comes into play.

“CBD is a very powerful immune regulator. It keeps the [immune] engine on, but it doesn’t push the gas pedal, and it doesn’t push the brake completely,” Babak Baban, PhD, professor and immunologist at the Dental College of Georgia at Augusta University, told Medscape Medical News.

To explore the effectiveness of CBD in reducing hyperactivated inflammatory reactions, Baban and colleagues examined the potential of CBD to ameliorate ARDS in a murine model. The group divided wild-type male mice into sham, control, and treatment groups.

The sham group received intranasal phosphate buffered saline; the treatment and control groups received a polyriboinosinic:polycytidylic acid (poly I:C) double-stranded RNA analogue (100 mcg daily for 3 days) to simulate the cytokine storm and clinical ARDS symptoms.

Following the second poly I:C dose, the treatment group received CBD 5 mg/kg intraperitoneally every other day for 6 days. The mice were sacrificed on day 8.

The study results, published in July in Cannabis and Cannabinoid Research, first confirmed that the poly I:C model simulated the cytokine storm in ARDS, reducing blood oxygen saturation by as much as 10% (from ±81.6% to ±72.2%).

Intraperitoneally administered CBD appeared to reverse these ARDS-like trends. “We observed a significant improvement in severe lymphopenia, a mild decline in the ratio of neutrophils to T cells, and significant reductions in levels of [inflammatory and immune factors] IL-6, IFN-gamma [interferon gamma], and in TNF-alpha after the second CBD dose,” Baban said.

There was also a marked downregulation in infiltrating neutrophils and macrophages in the lung, leading to partial restoration of lung morphology and structure. The investigators write that this suggests “a counter inflammatory role for CBD to limit ARDS progression.”

Additional findings from a follow-up study published in mid-October “provide strong data that CBD may partially assert its beneficial and protective impact through its regulation of the apelin peptide,” wrote Baban in an email to Medscape Medical News.

“Apelin may also be a reliable biomarker for early diagnosis of ARDS in general, and in COVID-19 in particular,” he wrote.

Questions remain concerning dose response and whether CBD alone or in combination with other phytocannabinoids is more effective for treating COVID-19. Timing is likewise unclear.

Baban explained that as a result of the biphasic nature of COVID-19, the “sweet spot” appears to be just before the innate immune response progresses into an inflammation-driven response and fibrotic lung damage occurs.

But Wilkerson isn’t as convinced. She said that as with a thermostat, the endocannabinoid system needs tweaking to get it in the right place, that is, to achieve immune homeostasis. The COVID cytokine storm is highly unpredictable, she added, saying, “Right now, the timing for controlling the COVID cytokine storm is really a moving target.”
 

Is safety a concern?

Safety questions are expected to arise, especially in relation to COVID-19. CBD is not risk free, and one size does not fit all. Human CBD studies report gastrointestinal and somnolent effects, as well as drug-drug interactions.

Findings from a recent systematic review of randomized, controlled CBD trials support overall tolerability, suggesting that serious adverse events are rare. Such events are believed to be related to drug-drug interactions rather than to CBD itself. On the flip side, it is nonintoxicating, and there does not appear to be potential for abuse.

“It’s generally well tolerated,” Wilkerson said. “There’ve now been several clinical trials in numerous patient population settings where basically the only time you really start to have issues is where you have patients on very select agents. But this is where a pharmacist would come into play.”

Costiniuk agreed: “Just because it’s cannabis, it doesn’t mean that there’s going to be strange or unusual effects; these people [ie, those with severe COVID-19] are in the hospital and monitored very closely.”
 

Delving into the weeds: What’s next?

Although non-COVID-19 cannabinoid researchers have encountered regulatory roadblocks, several research groups that have had the prescience to dive in at the right time are gaining momentum.

Baban’s team has connected with one of the nation’s few academic laboratories authorized to work with the SARS-CoV-2 virus and are awaiting protocol approval so that they can reproduce their research, this time using two CBD formulations (injectable and inhaled).

If findings are positive, they will move forward quickly to meet with the FDA, Baban said, adding that the team is also collaborating with two organizations to conduct human clinical trials in hopes of pushing up timing.

The initial article caught the eye of the World Health Organization, which included it in its global literature on the coronavirus resource section.

Israeli researchers have also been quite busy. InnoCan Pharma and Tel Aviv University are collaborating to explore the potential for CBD-loaded exosomes (minute extracellular particles that mediate intracellular communication, including via innate and adaptive immune responses). The group plans to use these loaded exosomes to target and facilitate recovery of COVID-19–damaged lung cells.

From a broader perspective, the prospects for harnessing cannabinoids for immune modulation will be more thoroughly explored in a special issue of Cannabis and Cannabinoid Research, which has extended its current call for papers, studies, abstracts, and conference proceedings until the end of December.

Like many of the therapeutic strategies under investigation for the treatment of COVID-19, studies in CBD may continue to raise more questions than answers.

Still, Wilkerson is optimistic. “Taken together, these studies along with countless others suggest that the complex pharmacophore of Cannabis sativa may hold therapeutic utility to treat lung inflammation, such as what is seen in a COVID-19 cytokine storm,» she told Medscape Medical News. “I’m very excited to see what comes out of the research.”

Baban, Wilkerson, and Costiniuk have disclosed no relevant financial relationships.

This article first appeared on Medscape.com.

Plagued by false starts, a few dashed hopes, but with perhaps a glimmer of light on the horizon, the race to find an effective treatment for COVID-19 continues. At last count, more than 300 treatments and 200 vaccines were in preclinical or clinical development (not to mention the numerous existing agents that are being evaluated for repurposing).

There is also a renewed interest in cannabinoid therapeutics — in particular, the nonpsychoactive agent cannabidiol (CBD) and the prospect of its modulating inflammatory and other disease-associated clinical indices, including SARS-CoV-2–induced viral load, hyperinflammation, the cytokine storm, and acute respiratory distress syndrome (ARDS).

Long hobbled by regulatory, political, and financial barriers, CBD’s potential ability to knock back COVID-19–related inflammation might just open doors that have been closed for years to CBD researchers.
 

Why CBD and why now?

CBD and the resulting therapeutics have been plagued by a complicated association with recreational cannabis use. It’s been just 2 years since CBD-based therapeutics moved into mainstream medicine — the US Food and Drug Administration (FDA) approved Epidiolex oral solution for the treatment of Lennox-Gastaut syndrome and Dravet syndrome, and in August, the FDA approved it for tuberous sclerosis complex.

CBD’s mechanism of action has not been fully elucidated, but on the basis of its role in immune responses — well described in research spanning more than two decades — it›s not surprising that cannabinoid researchers have thrown their hats into the COVID-19 drug development ring.

The anti-inflammatory potential of CBD is substantial and appears to be related to the fact that it shares 20 protein targets common to inflammation-related pathways, Jenny Wilkerson, PhD, research assistant professor at the University of Florida School of Pharmacy, Gainesville, Florida, explained to Medscape Medical News.

Among the various trials that are currently recruiting or are underway is one that is slated for completion this fall. CANDIDATE (Cannabidiol for COVID-19 Patients With Mild-to-Moderate COVID-19) is a randomized, controlled, double-blind study led by Brazilian researchers at the University of São Paulo. The study, which began recruitment this past August, enrolled 100 patients, 50 in the active treatment group (who received capsulated CBD 300 mg daily for 14 days plus pharmacologic therapy [antipyretics] and clinical measures) and 50 who received placebo.

The primary outcome is intended to help clarify the potential role of oral CBD for preventing COVID-19 disease progression, modifying disease-associated clinical indices, and modulating inflammatory parameters, such as the cytokine storm, according to lead investigator Jose Alexandre de Souza Crippa, MD, PhD, professor of neuropsychology at the Ribeirao Preto Medical School at the University of São Paulo in Brazil, in the description of the study on clinicaltrials.gov. Crippa declined to provide any additional information about the trial in an email to Medscape Medical News.
 

Calming or preventing the storm

While Crippa and colleagues wrap up their CBD trial in South America, several North American and Canadian researchers are seeking to clarify and address one of the most therapeutically challenging aspects of SARS-CoV-2 infection — the lung macrophage–orchestrated hyperinflammatory response.

Although hyperinflammation is not unique to SARS-CoV-2 infection, disease severity and COVID-19–related mortality have been linked to this rapid and prolonged surge of inflammatory cytokines (eg, interleukin 6 [IL-6], IL-10, tumor necrosis factors [TNF], and chemokines) and the cytokine storm.

“When you stimulate CB2 receptors (involved in fighting inflammation), you get a release of the same inflammatory cytokines that are involved in COVID,” Cecilia Costiniuk, MD, associate professor and researcher at the Research Institute of the McGill University Health Center, Montreal, Canada, told Medscape Medical News.

“So, if you can act on this receptor, you might be able to reduce the release of those damaging cytokines that are causing ARDS, lung damage, etc,” she explained. Targeting these inflammatory mediators has been a key strategy in research aimed at reducing COVID-19 severity and related mortality, which is where CBD comes into play.

“CBD is a very powerful immune regulator. It keeps the [immune] engine on, but it doesn’t push the gas pedal, and it doesn’t push the brake completely,” Babak Baban, PhD, professor and immunologist at the Dental College of Georgia at Augusta University, told Medscape Medical News.

To explore the effectiveness of CBD in reducing hyperactivated inflammatory reactions, Baban and colleagues examined the potential of CBD to ameliorate ARDS in a murine model. The group divided wild-type male mice into sham, control, and treatment groups.

The sham group received intranasal phosphate buffered saline; the treatment and control groups received a polyriboinosinic:polycytidylic acid (poly I:C) double-stranded RNA analogue (100 mcg daily for 3 days) to simulate the cytokine storm and clinical ARDS symptoms.

Following the second poly I:C dose, the treatment group received CBD 5 mg/kg intraperitoneally every other day for 6 days. The mice were sacrificed on day 8.

The study results, published in July in Cannabis and Cannabinoid Research, first confirmed that the poly I:C model simulated the cytokine storm in ARDS, reducing blood oxygen saturation by as much as 10% (from ±81.6% to ±72.2%).

Intraperitoneally administered CBD appeared to reverse these ARDS-like trends. “We observed a significant improvement in severe lymphopenia, a mild decline in the ratio of neutrophils to T cells, and significant reductions in levels of [inflammatory and immune factors] IL-6, IFN-gamma [interferon gamma], and in TNF-alpha after the second CBD dose,” Baban said.

There was also a marked downregulation in infiltrating neutrophils and macrophages in the lung, leading to partial restoration of lung morphology and structure. The investigators write that this suggests “a counter inflammatory role for CBD to limit ARDS progression.”

Additional findings from a follow-up study published in mid-October “provide strong data that CBD may partially assert its beneficial and protective impact through its regulation of the apelin peptide,” wrote Baban in an email to Medscape Medical News.

“Apelin may also be a reliable biomarker for early diagnosis of ARDS in general, and in COVID-19 in particular,” he wrote.

Questions remain concerning dose response and whether CBD alone or in combination with other phytocannabinoids is more effective for treating COVID-19. Timing is likewise unclear.

Baban explained that as a result of the biphasic nature of COVID-19, the “sweet spot” appears to be just before the innate immune response progresses into an inflammation-driven response and fibrotic lung damage occurs.

But Wilkerson isn’t as convinced. She said that as with a thermostat, the endocannabinoid system needs tweaking to get it in the right place, that is, to achieve immune homeostasis. The COVID cytokine storm is highly unpredictable, she added, saying, “Right now, the timing for controlling the COVID cytokine storm is really a moving target.”
 

Is safety a concern?

Safety questions are expected to arise, especially in relation to COVID-19. CBD is not risk free, and one size does not fit all. Human CBD studies report gastrointestinal and somnolent effects, as well as drug-drug interactions.

Findings from a recent systematic review of randomized, controlled CBD trials support overall tolerability, suggesting that serious adverse events are rare. Such events are believed to be related to drug-drug interactions rather than to CBD itself. On the flip side, it is nonintoxicating, and there does not appear to be potential for abuse.

“It’s generally well tolerated,” Wilkerson said. “There’ve now been several clinical trials in numerous patient population settings where basically the only time you really start to have issues is where you have patients on very select agents. But this is where a pharmacist would come into play.”

Costiniuk agreed: “Just because it’s cannabis, it doesn’t mean that there’s going to be strange or unusual effects; these people [ie, those with severe COVID-19] are in the hospital and monitored very closely.”
 

Delving into the weeds: What’s next?

Although non-COVID-19 cannabinoid researchers have encountered regulatory roadblocks, several research groups that have had the prescience to dive in at the right time are gaining momentum.

Baban’s team has connected with one of the nation’s few academic laboratories authorized to work with the SARS-CoV-2 virus and are awaiting protocol approval so that they can reproduce their research, this time using two CBD formulations (injectable and inhaled).

If findings are positive, they will move forward quickly to meet with the FDA, Baban said, adding that the team is also collaborating with two organizations to conduct human clinical trials in hopes of pushing up timing.

The initial article caught the eye of the World Health Organization, which included it in its global literature on the coronavirus resource section.

Israeli researchers have also been quite busy. InnoCan Pharma and Tel Aviv University are collaborating to explore the potential for CBD-loaded exosomes (minute extracellular particles that mediate intracellular communication, including via innate and adaptive immune responses). The group plans to use these loaded exosomes to target and facilitate recovery of COVID-19–damaged lung cells.

From a broader perspective, the prospects for harnessing cannabinoids for immune modulation will be more thoroughly explored in a special issue of Cannabis and Cannabinoid Research, which has extended its current call for papers, studies, abstracts, and conference proceedings until the end of December.

Like many of the therapeutic strategies under investigation for the treatment of COVID-19, studies in CBD may continue to raise more questions than answers.

Still, Wilkerson is optimistic. “Taken together, these studies along with countless others suggest that the complex pharmacophore of Cannabis sativa may hold therapeutic utility to treat lung inflammation, such as what is seen in a COVID-19 cytokine storm,» she told Medscape Medical News. “I’m very excited to see what comes out of the research.”

Baban, Wilkerson, and Costiniuk have disclosed no relevant financial relationships.

This article first appeared on Medscape.com.

Plagued by false starts, a few dashed hopes, but with perhaps a glimmer of light on the horizon, the race to find an effective treatment for COVID-19 continues. At last count, more than 300 treatments and 200 vaccines were in preclinical or clinical development (not to mention the numerous existing agents that are being evaluated for repurposing).

There is also a renewed interest in cannabinoid therapeutics — in particular, the nonpsychoactive agent cannabidiol (CBD) and the prospect of its modulating inflammatory and other disease-associated clinical indices, including SARS-CoV-2–induced viral load, hyperinflammation, the cytokine storm, and acute respiratory distress syndrome (ARDS).

Long hobbled by regulatory, political, and financial barriers, CBD’s potential ability to knock back COVID-19–related inflammation might just open doors that have been closed for years to CBD researchers.
 

Why CBD and why now?

CBD and the resulting therapeutics have been plagued by a complicated association with recreational cannabis use. It’s been just 2 years since CBD-based therapeutics moved into mainstream medicine — the US Food and Drug Administration (FDA) approved Epidiolex oral solution for the treatment of Lennox-Gastaut syndrome and Dravet syndrome, and in August, the FDA approved it for tuberous sclerosis complex.

CBD’s mechanism of action has not been fully elucidated, but on the basis of its role in immune responses — well described in research spanning more than two decades — it›s not surprising that cannabinoid researchers have thrown their hats into the COVID-19 drug development ring.

The anti-inflammatory potential of CBD is substantial and appears to be related to the fact that it shares 20 protein targets common to inflammation-related pathways, Jenny Wilkerson, PhD, research assistant professor at the University of Florida School of Pharmacy, Gainesville, Florida, explained to Medscape Medical News.

Among the various trials that are currently recruiting or are underway is one that is slated for completion this fall. CANDIDATE (Cannabidiol for COVID-19 Patients With Mild-to-Moderate COVID-19) is a randomized, controlled, double-blind study led by Brazilian researchers at the University of São Paulo. The study, which began recruitment this past August, enrolled 100 patients, 50 in the active treatment group (who received capsulated CBD 300 mg daily for 14 days plus pharmacologic therapy [antipyretics] and clinical measures) and 50 who received placebo.

The primary outcome is intended to help clarify the potential role of oral CBD for preventing COVID-19 disease progression, modifying disease-associated clinical indices, and modulating inflammatory parameters, such as the cytokine storm, according to lead investigator Jose Alexandre de Souza Crippa, MD, PhD, professor of neuropsychology at the Ribeirao Preto Medical School at the University of São Paulo in Brazil, in the description of the study on clinicaltrials.gov. Crippa declined to provide any additional information about the trial in an email to Medscape Medical News.
 

Calming or preventing the storm

While Crippa and colleagues wrap up their CBD trial in South America, several North American and Canadian researchers are seeking to clarify and address one of the most therapeutically challenging aspects of SARS-CoV-2 infection — the lung macrophage–orchestrated hyperinflammatory response.

Although hyperinflammation is not unique to SARS-CoV-2 infection, disease severity and COVID-19–related mortality have been linked to this rapid and prolonged surge of inflammatory cytokines (eg, interleukin 6 [IL-6], IL-10, tumor necrosis factors [TNF], and chemokines) and the cytokine storm.

“When you stimulate CB2 receptors (involved in fighting inflammation), you get a release of the same inflammatory cytokines that are involved in COVID,” Cecilia Costiniuk, MD, associate professor and researcher at the Research Institute of the McGill University Health Center, Montreal, Canada, told Medscape Medical News.

“So, if you can act on this receptor, you might be able to reduce the release of those damaging cytokines that are causing ARDS, lung damage, etc,” she explained. Targeting these inflammatory mediators has been a key strategy in research aimed at reducing COVID-19 severity and related mortality, which is where CBD comes into play.

“CBD is a very powerful immune regulator. It keeps the [immune] engine on, but it doesn’t push the gas pedal, and it doesn’t push the brake completely,” Babak Baban, PhD, professor and immunologist at the Dental College of Georgia at Augusta University, told Medscape Medical News.

To explore the effectiveness of CBD in reducing hyperactivated inflammatory reactions, Baban and colleagues examined the potential of CBD to ameliorate ARDS in a murine model. The group divided wild-type male mice into sham, control, and treatment groups.

The sham group received intranasal phosphate buffered saline; the treatment and control groups received a polyriboinosinic:polycytidylic acid (poly I:C) double-stranded RNA analogue (100 mcg daily for 3 days) to simulate the cytokine storm and clinical ARDS symptoms.

Following the second poly I:C dose, the treatment group received CBD 5 mg/kg intraperitoneally every other day for 6 days. The mice were sacrificed on day 8.

The study results, published in July in Cannabis and Cannabinoid Research, first confirmed that the poly I:C model simulated the cytokine storm in ARDS, reducing blood oxygen saturation by as much as 10% (from ±81.6% to ±72.2%).

Intraperitoneally administered CBD appeared to reverse these ARDS-like trends. “We observed a significant improvement in severe lymphopenia, a mild decline in the ratio of neutrophils to T cells, and significant reductions in levels of [inflammatory and immune factors] IL-6, IFN-gamma [interferon gamma], and in TNF-alpha after the second CBD dose,” Baban said.

There was also a marked downregulation in infiltrating neutrophils and macrophages in the lung, leading to partial restoration of lung morphology and structure. The investigators write that this suggests “a counter inflammatory role for CBD to limit ARDS progression.”

Additional findings from a follow-up study published in mid-October “provide strong data that CBD may partially assert its beneficial and protective impact through its regulation of the apelin peptide,” wrote Baban in an email to Medscape Medical News.

“Apelin may also be a reliable biomarker for early diagnosis of ARDS in general, and in COVID-19 in particular,” he wrote.

Questions remain concerning dose response and whether CBD alone or in combination with other phytocannabinoids is more effective for treating COVID-19. Timing is likewise unclear.

Baban explained that as a result of the biphasic nature of COVID-19, the “sweet spot” appears to be just before the innate immune response progresses into an inflammation-driven response and fibrotic lung damage occurs.

But Wilkerson isn’t as convinced. She said that as with a thermostat, the endocannabinoid system needs tweaking to get it in the right place, that is, to achieve immune homeostasis. The COVID cytokine storm is highly unpredictable, she added, saying, “Right now, the timing for controlling the COVID cytokine storm is really a moving target.”
 

Is safety a concern?

Safety questions are expected to arise, especially in relation to COVID-19. CBD is not risk free, and one size does not fit all. Human CBD studies report gastrointestinal and somnolent effects, as well as drug-drug interactions.

Findings from a recent systematic review of randomized, controlled CBD trials support overall tolerability, suggesting that serious adverse events are rare. Such events are believed to be related to drug-drug interactions rather than to CBD itself. On the flip side, it is nonintoxicating, and there does not appear to be potential for abuse.

“It’s generally well tolerated,” Wilkerson said. “There’ve now been several clinical trials in numerous patient population settings where basically the only time you really start to have issues is where you have patients on very select agents. But this is where a pharmacist would come into play.”

Costiniuk agreed: “Just because it’s cannabis, it doesn’t mean that there’s going to be strange or unusual effects; these people [ie, those with severe COVID-19] are in the hospital and monitored very closely.”
 

Delving into the weeds: What’s next?

Although non-COVID-19 cannabinoid researchers have encountered regulatory roadblocks, several research groups that have had the prescience to dive in at the right time are gaining momentum.

Baban’s team has connected with one of the nation’s few academic laboratories authorized to work with the SARS-CoV-2 virus and are awaiting protocol approval so that they can reproduce their research, this time using two CBD formulations (injectable and inhaled).

If findings are positive, they will move forward quickly to meet with the FDA, Baban said, adding that the team is also collaborating with two organizations to conduct human clinical trials in hopes of pushing up timing.

The initial article caught the eye of the World Health Organization, which included it in its global literature on the coronavirus resource section.

Israeli researchers have also been quite busy. InnoCan Pharma and Tel Aviv University are collaborating to explore the potential for CBD-loaded exosomes (minute extracellular particles that mediate intracellular communication, including via innate and adaptive immune responses). The group plans to use these loaded exosomes to target and facilitate recovery of COVID-19–damaged lung cells.

From a broader perspective, the prospects for harnessing cannabinoids for immune modulation will be more thoroughly explored in a special issue of Cannabis and Cannabinoid Research, which has extended its current call for papers, studies, abstracts, and conference proceedings until the end of December.

Like many of the therapeutic strategies under investigation for the treatment of COVID-19, studies in CBD may continue to raise more questions than answers.

Still, Wilkerson is optimistic. “Taken together, these studies along with countless others suggest that the complex pharmacophore of Cannabis sativa may hold therapeutic utility to treat lung inflammation, such as what is seen in a COVID-19 cytokine storm,» she told Medscape Medical News. “I’m very excited to see what comes out of the research.”

Baban, Wilkerson, and Costiniuk have disclosed no relevant financial relationships.

This article first appeared on Medscape.com.

Apomorphine sublingual film (Kynmobi, Sunovion Pharmaceuticals) was efficacious and generally safe and well tolerated for the on-demand treatment of off episodes in Parkinson’s disease, long-term follow-up of a phase 3 study has shown. Besides the usual adverse effects with apomorphine, the sublingual film was associated with more oral adverse effects than seen with the injectable drug. However, it may have some advantages over subcutaneous apomorphine injections in terms of administration during off episodes.

The study was presented at the Movement Disorder Society 23rd International Congress of Parkinson’s Disease and Movement Disorders (Virtual) 2020.

For example, the new formulation is more convenient than carrying an injection. It comes in a small, tear-open packet that contains a medication strip patients place under their tongues.

“When a patient is in the off state, depending on how off they are, they could have a little difficulty opening the strip [packet], but anyone can open the strip for them,” said lead author Rajesh Pahwa, MD, professor of neurology and chief of the Parkinson and Movement Disorder Division at the University of Kansas Medical Center in Kansas City. “On the other hand with the subcutaneous, they have to give the injection themselves and a stranger or someone is not going to help them with that.”
 

Open-label safety and efficacy study

The aims of this open-label, 48-week follow-up were to add new patients to assess safety and tolerability over the long term and to see if continued benefit from a previous 12-week double-blind study was still present at 1 year for patients in the earlier study.

This multicenter study (NCT02542696) included “rollover” patients (n = 78 for safety; n = 70 for efficacy) from the previous phase 2/3 double-blind trial, as well as new patients with no prior exposure to apomorphine sublingual film (n = 347 for safety; n = 275 for efficacy).

New patients experienced one or more off episodes per day with a daily off time of 2 hours or more per day while on stable doses of levodopa/carbidopa. All had clinically meaningful responses to levodopa/carbidopa and were judged by the investigator to be Stage 1-3 by modified Hoehn and Yahr scale rating during ON periods.

Rollover patients completed the prior study and had no major changes in their anti-Parkinson’s medications since then. Mouth cankers or sores were exclusion criteria for either group. New subjects could not have received subcutaneous apomorphine within 7 days of a screening visit.

The demographics and baseline characteristics of the new and rollover groups were similar (approximately 64 years; 65%-71% male; 96% White; 8.3-9.6 years since diagnosis; 3.9 to 4.1 off episodes/day, and total mean daily levodopa dose of 1120 to 1478 mg).

Assessing only the group of new patients, the investigators reported that 80% had a Hoehn and Yahr score of 2 or 2.5 when in the ON state and a Movement Disorder Society–Unified Parkinson’s Disease Rating Scale (MDS-UPDRS) Part III predose score of 41.8.

At the beginning of this study, patients in an off period received titrated doses of 10-35 mg of sublingual apomorphine in 5 mg increments during sequential office visits until they achieved a tolerable full ON within 45 minutes of a dose. They then entered a 48-week safety and efficacy phase, during which they self-administered the drug at home up to five times daily for off episodes with a minimum of 2 hours between doses. The investigators could adjust the doses for safety or lack of efficacy.

Two-thirds of new patients and three-quarters of rollovers received doses in the 10-20 mg range. The highest dose in the study of 35 mg was used by only 8%-9% of patients, but the highest approved and marketed dose is 30 mg.
 

Long-term benefits

Onset of efficacy was achieved by 15 minutes after dose for both new and rollover patients, and maximal efficacy occurred by 30 minutes. Results were very similar at 24, 36, and 48 weeks. The investigators did not perform statistical analyses.

Across study weeks 1, 12, 24, 36, and 48, between 77% and 92% of new patients and between 65% and 77% of rollover patients self-reported full ON within 30 minutes. “The long-term benefits are maintained over a year as far as the speed of onset and the duration,” Dr. Pahwa said.

Treatment-emergent adverse events occurred in about half of the new and the rollover patient groups in the titration phase and in 71%-81% of patients during the long-term safety phase. Nearly all were mild to moderate in severity.

A large number of participants withdrew from this long-term safety phase because of adverse events – 90 (33%) of new enrollees and 16 (23%) of rollover patients. Only 4% dropped out for lack of efficacy, all in the new enrollee group. Because the sublingual formulation is delivered under the tongue, patients in that group had more oral side effects, Dr. Pahwa said. Otherwise, “the side effects were very similar to the subcutaneous delivery.”

Treatment-emergent adverse events specific to sublingual apomorphine included oral mucosal erythema, lip or tongue swelling, and mouth ulceration (6% to 7% of patients each). Occurring less often were glossodynia, oral candidiasis, stomatitis, and tongue ulceration (2% each).

These were in addition to adverse events typically occurring with subcutaneous apomorphine, which are nausea, falls, dizziness, somnolence, dyskinesia, syncope, and yawning.

There are no head-to-head comparisons of sublingual versus subcutaneous delivery of apomorphine. But based on experience, Dr. Pahwa said, “With the subcutaneous, you have a slightly faster onset of action compared to the sublingual. However, sublingual has a slightly longer duration of benefit.”

He predicted that patients may prefer using an injection for a faster benefit or a sublingual for a slightly longer benefit.
 

More therapeutic options are welcome

Commenting on the study, Ray Dorsey, MD, professor of neurology at the University of Rochester (N.Y.), said that, for people with more advanced Parkinson’s disease “there’s usually a caregiver who’s injecting someone with an off period, as opposed to sublingual, which seems like a much easier way of administering a drug, especially for people with motor fluctuations.”

He noted that adverse events that led to premature discontinuation from the study “are concerning about the overall tolerability of the drug, which also will be determined in clinical practice, and will likely influence its overall utility.”

However, more therapeutic options are welcome because “the number of people with advanced Parkinson’s disease is going to grow and grow substantially,” he said. “So having therapies that help people with more advanced Parkinson’s disease ... many of whom don’t reach the clinic ... are going to be increasingly important.”

The study was supported by Sunovion. Dr. Pahwa and Dr. Dorsey reported conflicts of interest with numerous sources in industry.
 

A version of this article originally appeared on Medscape.com.

Apomorphine sublingual film (Kynmobi, Sunovion Pharmaceuticals) was efficacious and generally safe and well tolerated for the on-demand treatment of off episodes in Parkinson’s disease, long-term follow-up of a phase 3 study has shown. Besides the usual adverse effects with apomorphine, the sublingual film was associated with more oral adverse effects than seen with the injectable drug. However, it may have some advantages over subcutaneous apomorphine injections in terms of administration during off episodes.

The study was presented at the Movement Disorder Society 23rd International Congress of Parkinson’s Disease and Movement Disorders (Virtual) 2020.

For example, the new formulation is more convenient than carrying an injection. It comes in a small, tear-open packet that contains a medication strip patients place under their tongues.

“When a patient is in the off state, depending on how off they are, they could have a little difficulty opening the strip [packet], but anyone can open the strip for them,” said lead author Rajesh Pahwa, MD, professor of neurology and chief of the Parkinson and Movement Disorder Division at the University of Kansas Medical Center in Kansas City. “On the other hand with the subcutaneous, they have to give the injection themselves and a stranger or someone is not going to help them with that.”
 

Open-label safety and efficacy study

The aims of this open-label, 48-week follow-up were to add new patients to assess safety and tolerability over the long term and to see if continued benefit from a previous 12-week double-blind study was still present at 1 year for patients in the earlier study.

This multicenter study (NCT02542696) included “rollover” patients (n = 78 for safety; n = 70 for efficacy) from the previous phase 2/3 double-blind trial, as well as new patients with no prior exposure to apomorphine sublingual film (n = 347 for safety; n = 275 for efficacy).

New patients experienced one or more off episodes per day with a daily off time of 2 hours or more per day while on stable doses of levodopa/carbidopa. All had clinically meaningful responses to levodopa/carbidopa and were judged by the investigator to be Stage 1-3 by modified Hoehn and Yahr scale rating during ON periods.

Rollover patients completed the prior study and had no major changes in their anti-Parkinson’s medications since then. Mouth cankers or sores were exclusion criteria for either group. New subjects could not have received subcutaneous apomorphine within 7 days of a screening visit.

The demographics and baseline characteristics of the new and rollover groups were similar (approximately 64 years; 65%-71% male; 96% White; 8.3-9.6 years since diagnosis; 3.9 to 4.1 off episodes/day, and total mean daily levodopa dose of 1120 to 1478 mg).

Assessing only the group of new patients, the investigators reported that 80% had a Hoehn and Yahr score of 2 or 2.5 when in the ON state and a Movement Disorder Society–Unified Parkinson’s Disease Rating Scale (MDS-UPDRS) Part III predose score of 41.8.

At the beginning of this study, patients in an off period received titrated doses of 10-35 mg of sublingual apomorphine in 5 mg increments during sequential office visits until they achieved a tolerable full ON within 45 minutes of a dose. They then entered a 48-week safety and efficacy phase, during which they self-administered the drug at home up to five times daily for off episodes with a minimum of 2 hours between doses. The investigators could adjust the doses for safety or lack of efficacy.

Two-thirds of new patients and three-quarters of rollovers received doses in the 10-20 mg range. The highest dose in the study of 35 mg was used by only 8%-9% of patients, but the highest approved and marketed dose is 30 mg.
 

Long-term benefits

Onset of efficacy was achieved by 15 minutes after dose for both new and rollover patients, and maximal efficacy occurred by 30 minutes. Results were very similar at 24, 36, and 48 weeks. The investigators did not perform statistical analyses.

Across study weeks 1, 12, 24, 36, and 48, between 77% and 92% of new patients and between 65% and 77% of rollover patients self-reported full ON within 30 minutes. “The long-term benefits are maintained over a year as far as the speed of onset and the duration,” Dr. Pahwa said.

Treatment-emergent adverse events occurred in about half of the new and the rollover patient groups in the titration phase and in 71%-81% of patients during the long-term safety phase. Nearly all were mild to moderate in severity.

A large number of participants withdrew from this long-term safety phase because of adverse events – 90 (33%) of new enrollees and 16 (23%) of rollover patients. Only 4% dropped out for lack of efficacy, all in the new enrollee group. Because the sublingual formulation is delivered under the tongue, patients in that group had more oral side effects, Dr. Pahwa said. Otherwise, “the side effects were very similar to the subcutaneous delivery.”

Treatment-emergent adverse events specific to sublingual apomorphine included oral mucosal erythema, lip or tongue swelling, and mouth ulceration (6% to 7% of patients each). Occurring less often were glossodynia, oral candidiasis, stomatitis, and tongue ulceration (2% each).

These were in addition to adverse events typically occurring with subcutaneous apomorphine, which are nausea, falls, dizziness, somnolence, dyskinesia, syncope, and yawning.

There are no head-to-head comparisons of sublingual versus subcutaneous delivery of apomorphine. But based on experience, Dr. Pahwa said, “With the subcutaneous, you have a slightly faster onset of action compared to the sublingual. However, sublingual has a slightly longer duration of benefit.”

He predicted that patients may prefer using an injection for a faster benefit or a sublingual for a slightly longer benefit.
 

More therapeutic options are welcome

Commenting on the study, Ray Dorsey, MD, professor of neurology at the University of Rochester (N.Y.), said that, for people with more advanced Parkinson’s disease “there’s usually a caregiver who’s injecting someone with an off period, as opposed to sublingual, which seems like a much easier way of administering a drug, especially for people with motor fluctuations.”

He noted that adverse events that led to premature discontinuation from the study “are concerning about the overall tolerability of the drug, which also will be determined in clinical practice, and will likely influence its overall utility.”

However, more therapeutic options are welcome because “the number of people with advanced Parkinson’s disease is going to grow and grow substantially,” he said. “So having therapies that help people with more advanced Parkinson’s disease ... many of whom don’t reach the clinic ... are going to be increasingly important.”

The study was supported by Sunovion. Dr. Pahwa and Dr. Dorsey reported conflicts of interest with numerous sources in industry.
 

A version of this article originally appeared on Medscape.com.

Apomorphine sublingual film (Kynmobi, Sunovion Pharmaceuticals) was efficacious and generally safe and well tolerated for the on-demand treatment of off episodes in Parkinson’s disease, long-term follow-up of a phase 3 study has shown. Besides the usual adverse effects with apomorphine, the sublingual film was associated with more oral adverse effects than seen with the injectable drug. However, it may have some advantages over subcutaneous apomorphine injections in terms of administration during off episodes.

The study was presented at the Movement Disorder Society 23rd International Congress of Parkinson’s Disease and Movement Disorders (Virtual) 2020.

For example, the new formulation is more convenient than carrying an injection. It comes in a small, tear-open packet that contains a medication strip patients place under their tongues.

“When a patient is in the off state, depending on how off they are, they could have a little difficulty opening the strip [packet], but anyone can open the strip for them,” said lead author Rajesh Pahwa, MD, professor of neurology and chief of the Parkinson and Movement Disorder Division at the University of Kansas Medical Center in Kansas City. “On the other hand with the subcutaneous, they have to give the injection themselves and a stranger or someone is not going to help them with that.”
 

Open-label safety and efficacy study

The aims of this open-label, 48-week follow-up were to add new patients to assess safety and tolerability over the long term and to see if continued benefit from a previous 12-week double-blind study was still present at 1 year for patients in the earlier study.

This multicenter study (NCT02542696) included “rollover” patients (n = 78 for safety; n = 70 for efficacy) from the previous phase 2/3 double-blind trial, as well as new patients with no prior exposure to apomorphine sublingual film (n = 347 for safety; n = 275 for efficacy).

New patients experienced one or more off episodes per day with a daily off time of 2 hours or more per day while on stable doses of levodopa/carbidopa. All had clinically meaningful responses to levodopa/carbidopa and were judged by the investigator to be Stage 1-3 by modified Hoehn and Yahr scale rating during ON periods.

Rollover patients completed the prior study and had no major changes in their anti-Parkinson’s medications since then. Mouth cankers or sores were exclusion criteria for either group. New subjects could not have received subcutaneous apomorphine within 7 days of a screening visit.

The demographics and baseline characteristics of the new and rollover groups were similar (approximately 64 years; 65%-71% male; 96% White; 8.3-9.6 years since diagnosis; 3.9 to 4.1 off episodes/day, and total mean daily levodopa dose of 1120 to 1478 mg).

Assessing only the group of new patients, the investigators reported that 80% had a Hoehn and Yahr score of 2 or 2.5 when in the ON state and a Movement Disorder Society–Unified Parkinson’s Disease Rating Scale (MDS-UPDRS) Part III predose score of 41.8.

At the beginning of this study, patients in an off period received titrated doses of 10-35 mg of sublingual apomorphine in 5 mg increments during sequential office visits until they achieved a tolerable full ON within 45 minutes of a dose. They then entered a 48-week safety and efficacy phase, during which they self-administered the drug at home up to five times daily for off episodes with a minimum of 2 hours between doses. The investigators could adjust the doses for safety or lack of efficacy.

Two-thirds of new patients and three-quarters of rollovers received doses in the 10-20 mg range. The highest dose in the study of 35 mg was used by only 8%-9% of patients, but the highest approved and marketed dose is 30 mg.
 

Long-term benefits

Onset of efficacy was achieved by 15 minutes after dose for both new and rollover patients, and maximal efficacy occurred by 30 minutes. Results were very similar at 24, 36, and 48 weeks. The investigators did not perform statistical analyses.

Across study weeks 1, 12, 24, 36, and 48, between 77% and 92% of new patients and between 65% and 77% of rollover patients self-reported full ON within 30 minutes. “The long-term benefits are maintained over a year as far as the speed of onset and the duration,” Dr. Pahwa said.

Treatment-emergent adverse events occurred in about half of the new and the rollover patient groups in the titration phase and in 71%-81% of patients during the long-term safety phase. Nearly all were mild to moderate in severity.

A large number of participants withdrew from this long-term safety phase because of adverse events – 90 (33%) of new enrollees and 16 (23%) of rollover patients. Only 4% dropped out for lack of efficacy, all in the new enrollee group. Because the sublingual formulation is delivered under the tongue, patients in that group had more oral side effects, Dr. Pahwa said. Otherwise, “the side effects were very similar to the subcutaneous delivery.”

Treatment-emergent adverse events specific to sublingual apomorphine included oral mucosal erythema, lip or tongue swelling, and mouth ulceration (6% to 7% of patients each). Occurring less often were glossodynia, oral candidiasis, stomatitis, and tongue ulceration (2% each).

These were in addition to adverse events typically occurring with subcutaneous apomorphine, which are nausea, falls, dizziness, somnolence, dyskinesia, syncope, and yawning.

There are no head-to-head comparisons of sublingual versus subcutaneous delivery of apomorphine. But based on experience, Dr. Pahwa said, “With the subcutaneous, you have a slightly faster onset of action compared to the sublingual. However, sublingual has a slightly longer duration of benefit.”

He predicted that patients may prefer using an injection for a faster benefit or a sublingual for a slightly longer benefit.
 

More therapeutic options are welcome

Commenting on the study, Ray Dorsey, MD, professor of neurology at the University of Rochester (N.Y.), said that, for people with more advanced Parkinson’s disease “there’s usually a caregiver who’s injecting someone with an off period, as opposed to sublingual, which seems like a much easier way of administering a drug, especially for people with motor fluctuations.”

He noted that adverse events that led to premature discontinuation from the study “are concerning about the overall tolerability of the drug, which also will be determined in clinical practice, and will likely influence its overall utility.”

However, more therapeutic options are welcome because “the number of people with advanced Parkinson’s disease is going to grow and grow substantially,” he said. “So having therapies that help people with more advanced Parkinson’s disease ... many of whom don’t reach the clinic ... are going to be increasingly important.”

The study was supported by Sunovion. Dr. Pahwa and Dr. Dorsey reported conflicts of interest with numerous sources in industry.
 

A version of this article originally appeared on Medscape.com.