Key clinical point: The CoxNet machine learning model was validated as a predictor of recurrence of HCC in patients who underwent liver transplant.

Major finding: The concordance score of the CoxNet-based recurrence prediction model was 0.75, which significantly outperformed the alpha-fetoprotein score (0.64; P = 0.04) and MORAL score (0.64; P = 0.03).

Study details: The data come from 739 adults with hepatocellular carcinoma who underwent liver transplants between 2000 and 2016.

Disclosures: The study received no outside funding. The researchers had no financial conflicts to disclose.

Source: Ivanics T et al. Liver Transpl. 2021 Oct 9. doi: 10.1002/lt.26332. 

Key clinical point: The CoxNet machine learning model was validated as a predictor of recurrence of HCC in patients who underwent liver transplant.

Major finding: The concordance score of the CoxNet-based recurrence prediction model was 0.75, which significantly outperformed the alpha-fetoprotein score (0.64; P = 0.04) and MORAL score (0.64; P = 0.03).

Study details: The data come from 739 adults with hepatocellular carcinoma who underwent liver transplants between 2000 and 2016.

Disclosures: The study received no outside funding. The researchers had no financial conflicts to disclose.

Source: Ivanics T et al. Liver Transpl. 2021 Oct 9. doi: 10.1002/lt.26332. 

Key clinical point: The CoxNet machine learning model was validated as a predictor of recurrence of HCC in patients who underwent liver transplant.

Major finding: The concordance score of the CoxNet-based recurrence prediction model was 0.75, which significantly outperformed the alpha-fetoprotein score (0.64; P = 0.04) and MORAL score (0.64; P = 0.03).

Study details: The data come from 739 adults with hepatocellular carcinoma who underwent liver transplants between 2000 and 2016.

Disclosures: The study received no outside funding. The researchers had no financial conflicts to disclose.

Source: Ivanics T et al. Liver Transpl. 2021 Oct 9. doi: 10.1002/lt.26332. 

Key clinical point: Patients with unresectable hepatocellular carcinoma needed higher relative dose intensity (RDI) to achieve an objective response with lenvatinib, but the therapeutic line did not impact overall survival, time to progression, or best response.

Major finding:  RDI ≥0.8 during cycle 1 and RDI ≥0.4 during cycle 1 contributed to achievement of objective response with levatinib (odds ratio 3.28) and disease control (OR 4.85).

Study details: The data come from a retrospective study of 100 patients with unresectable hepatocellular carcinoma who received first- or later-line lenvatinib between April 2018 and December 2020 in a single center; they were assessed for time to objective response, disease control, overall survival, and time to progression.

Disclosures: The study received no outside funding. The researchers had no financial conflicts to disclose.

Source: Tokunaga T et al. Hepatol Res. 2021 Oct 9. doi: 10.1111/hepr.13720.

Key clinical point: Patients with unresectable hepatocellular carcinoma needed higher relative dose intensity (RDI) to achieve an objective response with lenvatinib, but the therapeutic line did not impact overall survival, time to progression, or best response.

Major finding:  RDI ≥0.8 during cycle 1 and RDI ≥0.4 during cycle 1 contributed to achievement of objective response with levatinib (odds ratio 3.28) and disease control (OR 4.85).

Study details: The data come from a retrospective study of 100 patients with unresectable hepatocellular carcinoma who received first- or later-line lenvatinib between April 2018 and December 2020 in a single center; they were assessed for time to objective response, disease control, overall survival, and time to progression.

Disclosures: The study received no outside funding. The researchers had no financial conflicts to disclose.

Source: Tokunaga T et al. Hepatol Res. 2021 Oct 9. doi: 10.1111/hepr.13720.

Key clinical point: Patients with unresectable hepatocellular carcinoma needed higher relative dose intensity (RDI) to achieve an objective response with lenvatinib, but the therapeutic line did not impact overall survival, time to progression, or best response.

Major finding:  RDI ≥0.8 during cycle 1 and RDI ≥0.4 during cycle 1 contributed to achievement of objective response with levatinib (odds ratio 3.28) and disease control (OR 4.85).

Study details: The data come from a retrospective study of 100 patients with unresectable hepatocellular carcinoma who received first- or later-line lenvatinib between April 2018 and December 2020 in a single center; they were assessed for time to objective response, disease control, overall survival, and time to progression.

Disclosures: The study received no outside funding. The researchers had no financial conflicts to disclose.

Source: Tokunaga T et al. Hepatol Res. 2021 Oct 9. doi: 10.1111/hepr.13720.

The high cost of new cancer drugs has been the subject of many debates and discussions, but the issue remains largely unresolved.

Now, one pharmaceutical company is offering a refund if its drug “doesn’t work.”

For what it says is the first time in the industry, Pfizer has issued a warranty on crizotinib (Xalkori) and will refund the cost that was paid for the medicine if it doesn’t work within the first 3 months of use.

“Through this pilot program, Pfizer will offer a warranty to patients and health plans -- Medicare Part D, commercial and those who pay cash -- who are prescribed Xalkori for an FDA [US Food and Drug Administration]–approved indication,” said a company spokesperson.

Although Pfizer claims that its pilot program is a first in the industry, there have been others that are similar.

In 2017, Novartis offered something similar for tisagenlecleucel (Kymriah), the CAR T-cell therapy that launched with a daunting price tag of $475,000. After receiving backlash over the cost, Novartis announced that if the drug does not work after the first month, patients pay nothing.

Italy has been using this system for several years. Pharmaceutical companies must refund money if the drug fails to work. In 2015, the state-run healthcare system collected €200 million ($220 million) in refunds.
 

Pfizer pledge

Crizotinib is a selective tyrosine kinase inhibitor used mainly in the treatment of metastatic non–small cell lung cancer for patients whose tumors are positive for ALK or ROS1, as detected by an FDA-approved test. This indication was approved a decade ago. Another indication, ALK-positive anaplastic large cell lymphoma, was added earlier this year.

Details of the Pfizer Pledge are posted on Pfizer’s website. Eligible patients are those for whom crizotinib is discontinued before the fourth 30-day supply is dispensed by the patient’s pharmacy.

“The warranty will reimburse an amount equal to the cost paid for the medicine,” the spokesperson added. “The insurance-backed warranty pilot program will be insured and managed by AIG.”

This program is only available for patients who reside in the United States.

If use of crizotinib is discontinued and documentation of ineffectiveness is provided, Pfizer will refund the out-of-pocket amount that was paid for up to the first three bottles (30-day supply) of crizotinib, up to a maximum of $19,144 for each month’s supply, or a total of $57,432. Pfizer will also refund the cost that was paid by Medicare or a commercial insurer.

“Also, we have made sure to develop a program that also allows for Medicare patients to be eligible, since they are exempt from copay cards and at risk for significant financial burden when starting an oncology treatment,” said the spokesperson.

The pilot program is available to patients who began taking crizotinib from June 1, 2021, through December 31, 2021.

So far, Pfizer is offering this warranty only for crizotinib, but that may change in the future.

“Once the pilot is complete, we will assess learnings and consider whether to build a more robust, scalable program capable of supporting multiple products,” the Pfizer spokesperson commented.
 

Previous scheme ended in court

Pfizer had previously tried a different approach to reducing drug costs: it had attempted to offer copay support programs to Medicare patients who were prescribed its cardiac drug tafamidis (Vyndaqe, Vyndamax).

Tafamidis, launched in 2019, is used for patients with transthyretin amyloid cardiomyopathy. For those patients, it has been shown to reduce all-cause mortality and cardiovascular hospitalizations. It costs about $225,000 a year and has been described as the most expensive cardiovascular drug in the United States.

Earlier this month, a court dismissed Pfizer’s challenge to an anti-kickback law that prevented the company from offering copay support programs to Medicare patients.

The judge ruled that Pfizer’s plan to offer direct payments to patients violated a federal ban on “knowingly or willfully” providing financial support to induce drug purchases, even in the absence of corrupt intent.

Pharmaceutical manufacturers are forbidden from subsidizing copayments for Medicare beneficiaries but are allowed to donate to independent nonprofit organizations that offer copay assistance. Pfizer sued the U.S. Department of Health and Human Services in June 2020 to get a court ruling that their proposed programs were legal.

The new pledge program for crizotinib operates from a different premise, the Pfizer spokesperson commented.

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

The high cost of new cancer drugs has been the subject of many debates and discussions, but the issue remains largely unresolved.

Now, one pharmaceutical company is offering a refund if its drug “doesn’t work.”

For what it says is the first time in the industry, Pfizer has issued a warranty on crizotinib (Xalkori) and will refund the cost that was paid for the medicine if it doesn’t work within the first 3 months of use.

“Through this pilot program, Pfizer will offer a warranty to patients and health plans -- Medicare Part D, commercial and those who pay cash -- who are prescribed Xalkori for an FDA [US Food and Drug Administration]–approved indication,” said a company spokesperson.

Although Pfizer claims that its pilot program is a first in the industry, there have been others that are similar.

In 2017, Novartis offered something similar for tisagenlecleucel (Kymriah), the CAR T-cell therapy that launched with a daunting price tag of $475,000. After receiving backlash over the cost, Novartis announced that if the drug does not work after the first month, patients pay nothing.

Italy has been using this system for several years. Pharmaceutical companies must refund money if the drug fails to work. In 2015, the state-run healthcare system collected €200 million ($220 million) in refunds.
 

Pfizer pledge

Crizotinib is a selective tyrosine kinase inhibitor used mainly in the treatment of metastatic non–small cell lung cancer for patients whose tumors are positive for ALK or ROS1, as detected by an FDA-approved test. This indication was approved a decade ago. Another indication, ALK-positive anaplastic large cell lymphoma, was added earlier this year.

Details of the Pfizer Pledge are posted on Pfizer’s website. Eligible patients are those for whom crizotinib is discontinued before the fourth 30-day supply is dispensed by the patient’s pharmacy.

“The warranty will reimburse an amount equal to the cost paid for the medicine,” the spokesperson added. “The insurance-backed warranty pilot program will be insured and managed by AIG.”

This program is only available for patients who reside in the United States.

If use of crizotinib is discontinued and documentation of ineffectiveness is provided, Pfizer will refund the out-of-pocket amount that was paid for up to the first three bottles (30-day supply) of crizotinib, up to a maximum of $19,144 for each month’s supply, or a total of $57,432. Pfizer will also refund the cost that was paid by Medicare or a commercial insurer.

“Also, we have made sure to develop a program that also allows for Medicare patients to be eligible, since they are exempt from copay cards and at risk for significant financial burden when starting an oncology treatment,” said the spokesperson.

The pilot program is available to patients who began taking crizotinib from June 1, 2021, through December 31, 2021.

So far, Pfizer is offering this warranty only for crizotinib, but that may change in the future.

“Once the pilot is complete, we will assess learnings and consider whether to build a more robust, scalable program capable of supporting multiple products,” the Pfizer spokesperson commented.
 

Previous scheme ended in court

Pfizer had previously tried a different approach to reducing drug costs: it had attempted to offer copay support programs to Medicare patients who were prescribed its cardiac drug tafamidis (Vyndaqe, Vyndamax).

Tafamidis, launched in 2019, is used for patients with transthyretin amyloid cardiomyopathy. For those patients, it has been shown to reduce all-cause mortality and cardiovascular hospitalizations. It costs about $225,000 a year and has been described as the most expensive cardiovascular drug in the United States.

Earlier this month, a court dismissed Pfizer’s challenge to an anti-kickback law that prevented the company from offering copay support programs to Medicare patients.

The judge ruled that Pfizer’s plan to offer direct payments to patients violated a federal ban on “knowingly or willfully” providing financial support to induce drug purchases, even in the absence of corrupt intent.

Pharmaceutical manufacturers are forbidden from subsidizing copayments for Medicare beneficiaries but are allowed to donate to independent nonprofit organizations that offer copay assistance. Pfizer sued the U.S. Department of Health and Human Services in June 2020 to get a court ruling that their proposed programs were legal.

The new pledge program for crizotinib operates from a different premise, the Pfizer spokesperson commented.

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

The high cost of new cancer drugs has been the subject of many debates and discussions, but the issue remains largely unresolved.

Now, one pharmaceutical company is offering a refund if its drug “doesn’t work.”

For what it says is the first time in the industry, Pfizer has issued a warranty on crizotinib (Xalkori) and will refund the cost that was paid for the medicine if it doesn’t work within the first 3 months of use.

“Through this pilot program, Pfizer will offer a warranty to patients and health plans -- Medicare Part D, commercial and those who pay cash -- who are prescribed Xalkori for an FDA [US Food and Drug Administration]–approved indication,” said a company spokesperson.

Although Pfizer claims that its pilot program is a first in the industry, there have been others that are similar.

In 2017, Novartis offered something similar for tisagenlecleucel (Kymriah), the CAR T-cell therapy that launched with a daunting price tag of $475,000. After receiving backlash over the cost, Novartis announced that if the drug does not work after the first month, patients pay nothing.

Italy has been using this system for several years. Pharmaceutical companies must refund money if the drug fails to work. In 2015, the state-run healthcare system collected €200 million ($220 million) in refunds.
 

Pfizer pledge

Crizotinib is a selective tyrosine kinase inhibitor used mainly in the treatment of metastatic non–small cell lung cancer for patients whose tumors are positive for ALK or ROS1, as detected by an FDA-approved test. This indication was approved a decade ago. Another indication, ALK-positive anaplastic large cell lymphoma, was added earlier this year.

Details of the Pfizer Pledge are posted on Pfizer’s website. Eligible patients are those for whom crizotinib is discontinued before the fourth 30-day supply is dispensed by the patient’s pharmacy.

“The warranty will reimburse an amount equal to the cost paid for the medicine,” the spokesperson added. “The insurance-backed warranty pilot program will be insured and managed by AIG.”

This program is only available for patients who reside in the United States.

If use of crizotinib is discontinued and documentation of ineffectiveness is provided, Pfizer will refund the out-of-pocket amount that was paid for up to the first three bottles (30-day supply) of crizotinib, up to a maximum of $19,144 for each month’s supply, or a total of $57,432. Pfizer will also refund the cost that was paid by Medicare or a commercial insurer.

“Also, we have made sure to develop a program that also allows for Medicare patients to be eligible, since they are exempt from copay cards and at risk for significant financial burden when starting an oncology treatment,” said the spokesperson.

The pilot program is available to patients who began taking crizotinib from June 1, 2021, through December 31, 2021.

So far, Pfizer is offering this warranty only for crizotinib, but that may change in the future.

“Once the pilot is complete, we will assess learnings and consider whether to build a more robust, scalable program capable of supporting multiple products,” the Pfizer spokesperson commented.
 

Previous scheme ended in court

Pfizer had previously tried a different approach to reducing drug costs: it had attempted to offer copay support programs to Medicare patients who were prescribed its cardiac drug tafamidis (Vyndaqe, Vyndamax).

Tafamidis, launched in 2019, is used for patients with transthyretin amyloid cardiomyopathy. For those patients, it has been shown to reduce all-cause mortality and cardiovascular hospitalizations. It costs about $225,000 a year and has been described as the most expensive cardiovascular drug in the United States.

Earlier this month, a court dismissed Pfizer’s challenge to an anti-kickback law that prevented the company from offering copay support programs to Medicare patients.

The judge ruled that Pfizer’s plan to offer direct payments to patients violated a federal ban on “knowingly or willfully” providing financial support to induce drug purchases, even in the absence of corrupt intent.

Pharmaceutical manufacturers are forbidden from subsidizing copayments for Medicare beneficiaries but are allowed to donate to independent nonprofit organizations that offer copay assistance. Pfizer sued the U.S. Department of Health and Human Services in June 2020 to get a court ruling that their proposed programs were legal.

The new pledge program for crizotinib operates from a different premise, the Pfizer spokesperson commented.

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

Self-administered external trigeminal nerve stimulation (E-TNS) that is available over the counter is superior to sham stimulation in relieving pain for patients with episodic migraine, results from a phase 3 study show.

This is great news for headache patients who want to explore nondrug treatment options, said study investigator Deena E. Kuruvilla, MD, neurologist and headache specialist at the Westport Headache Institute, Connecticut.

She added that such devices “aren’t always part of the conversation when we’re discussing preventive and acute treatments with our patients. Making this a regular part of the conversation might be helpful to patients.”

The findings were presented at ANA 2021: 146th Annual Meeting of the American Neurological Association (ANA), which was held online.
 

A key therapeutic target

The randomized, double-blind trial compared E-TNS with sham stimulation for the acute treatment of migraine.

The E-TNS device (Verum Cefaly Abortive Program) stimulates the supraorbital nerve in the forehead. “This nerve is a branch of the trigeminal nerve, which is thought to be the key player in migraine pathophysiology,” Dr. Kuruvilla noted.

The device has been cleared by the U.S. Food and Drug Administration for acute and preventive treatment of migraine.

During a run-in period before randomization, patients were asked to keep a detailed headache diary and to become comfortable using the trial device to treat an acute migraine attack at home.

The study enrolled 538 adult patients at 10 centers. The patients were aged 18 to 65 years, and they had been having episodic migraines, with or without aura, for at least a year. The participants had to have received a migraine diagnosis before age 50, and they had to be experiencing an attack of migraine 2 to 8 days per month.

The patients used the device only for a migraine of at least moderate intensity that was accompanied by at least one migraine-associated symptom, such as photophobia, phonophobia, or nausea. They were asked not to take rescue medication prior to or during a therapy session.

Study participants applied either neurostimulation or sham stimulation for a continuous 2-hour period within 4 hours of a migraine attack over the 2-month study period.

The two primary endpoints were pain freedom and freedom from the most bothersome migraine-associated symptoms at 2 hours.

Compared to sham treatment, active stimulation was more effective in achieving pain freedom (P = .043) and freedom from the most bothersome migraine-associated symptom (P = .001) at 2 hours.

“So the study did meet both primary endpoints with statistical significance,” said Dr. Kuruvilla.

The five secondary endpoints included pain relief at 2 hours; absence of all migraine-associated symptoms at 2 hours; use of rescue medication within 24 hours; sustained pain freedom at 24 hours; and sustained pain relief at 24 hours.

All but one of these endpoints reached statistical significance, showing superiority for the active intervention. The only exception was in regard to use of rescue medication.

The most common adverse event (AE) was forehead paresthesia, discomfort, or burning, which was more common in the active-treatment group than in the sham-treatment group (P = .009). There were four cases of nausea or vomiting in the active-treatment group and none in the sham-treatment group. There were no serious AEs.
 

Available over the counter

Both moderators of the headache poster tour that featured this study – Justin C. McArthur, MBBS, from Johns Hopkins University, Baltimore, and Steven Galetta, MD, from NYU Grossman School of Medicine – praised the presentation.

Dr. Galetta questioned whether patients were receiving preventive therapies. Dr. Kuruvilla said that the patients were allowed to enter the trial while taking preventive therapies, including antiepileptic treatments, blood pressure medications, and antidepressants, but that they had to be receiving stable doses.

The investigators didn’t distinguish between participants who were taking preventive therapies and those who weren’t, she said. “The aim was really to look at acute treatment for migraine,” and patients taking such medication “had been stable on their regimen for a pretty prolonged period of time.”

Dr. McArthur asked about the origin of the nausea some patients experienced.

It was difficult to determine whether the nausea was an aspect of an individual patient’s migraine attack or was an effect of the stimulation, said Dr. Kuruvilla. She noted that some patients found the vibrating sensation from the device uncomfortable and that nausea could be associated with pain at the site.

The device costs $300 to $400 (U.S.) and is available over the counter.

Dr. Kuruvilla is a consultant for Cefaly, Neurolief, Theranica, Now What Media, and Kx Advisors. She is on the speakers bureau for AbbVie/Allergan, Amgen/Novartis, Lilly, the American Headache Society, Biohaven, and CME meeting, and she is on an advisory board at AbbVie/Allergan, Lilly, Theranica, and Amgen/Novartis. She is editor and associate editor of Healthline and is an author for WebMD/Medscape, Healthline.

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

Self-administered external trigeminal nerve stimulation (E-TNS) that is available over the counter is superior to sham stimulation in relieving pain for patients with episodic migraine, results from a phase 3 study show.

This is great news for headache patients who want to explore nondrug treatment options, said study investigator Deena E. Kuruvilla, MD, neurologist and headache specialist at the Westport Headache Institute, Connecticut.

She added that such devices “aren’t always part of the conversation when we’re discussing preventive and acute treatments with our patients. Making this a regular part of the conversation might be helpful to patients.”

The findings were presented at ANA 2021: 146th Annual Meeting of the American Neurological Association (ANA), which was held online.
 

A key therapeutic target

The randomized, double-blind trial compared E-TNS with sham stimulation for the acute treatment of migraine.

The E-TNS device (Verum Cefaly Abortive Program) stimulates the supraorbital nerve in the forehead. “This nerve is a branch of the trigeminal nerve, which is thought to be the key player in migraine pathophysiology,” Dr. Kuruvilla noted.

The device has been cleared by the U.S. Food and Drug Administration for acute and preventive treatment of migraine.

During a run-in period before randomization, patients were asked to keep a detailed headache diary and to become comfortable using the trial device to treat an acute migraine attack at home.

The study enrolled 538 adult patients at 10 centers. The patients were aged 18 to 65 years, and they had been having episodic migraines, with or without aura, for at least a year. The participants had to have received a migraine diagnosis before age 50, and they had to be experiencing an attack of migraine 2 to 8 days per month.

The patients used the device only for a migraine of at least moderate intensity that was accompanied by at least one migraine-associated symptom, such as photophobia, phonophobia, or nausea. They were asked not to take rescue medication prior to or during a therapy session.

Study participants applied either neurostimulation or sham stimulation for a continuous 2-hour period within 4 hours of a migraine attack over the 2-month study period.

The two primary endpoints were pain freedom and freedom from the most bothersome migraine-associated symptoms at 2 hours.

Compared to sham treatment, active stimulation was more effective in achieving pain freedom (P = .043) and freedom from the most bothersome migraine-associated symptom (P = .001) at 2 hours.

“So the study did meet both primary endpoints with statistical significance,” said Dr. Kuruvilla.

The five secondary endpoints included pain relief at 2 hours; absence of all migraine-associated symptoms at 2 hours; use of rescue medication within 24 hours; sustained pain freedom at 24 hours; and sustained pain relief at 24 hours.

All but one of these endpoints reached statistical significance, showing superiority for the active intervention. The only exception was in regard to use of rescue medication.

The most common adverse event (AE) was forehead paresthesia, discomfort, or burning, which was more common in the active-treatment group than in the sham-treatment group (P = .009). There were four cases of nausea or vomiting in the active-treatment group and none in the sham-treatment group. There were no serious AEs.
 

Available over the counter

Both moderators of the headache poster tour that featured this study – Justin C. McArthur, MBBS, from Johns Hopkins University, Baltimore, and Steven Galetta, MD, from NYU Grossman School of Medicine – praised the presentation.

Dr. Galetta questioned whether patients were receiving preventive therapies. Dr. Kuruvilla said that the patients were allowed to enter the trial while taking preventive therapies, including antiepileptic treatments, blood pressure medications, and antidepressants, but that they had to be receiving stable doses.

The investigators didn’t distinguish between participants who were taking preventive therapies and those who weren’t, she said. “The aim was really to look at acute treatment for migraine,” and patients taking such medication “had been stable on their regimen for a pretty prolonged period of time.”

Dr. McArthur asked about the origin of the nausea some patients experienced.

It was difficult to determine whether the nausea was an aspect of an individual patient’s migraine attack or was an effect of the stimulation, said Dr. Kuruvilla. She noted that some patients found the vibrating sensation from the device uncomfortable and that nausea could be associated with pain at the site.

The device costs $300 to $400 (U.S.) and is available over the counter.

Dr. Kuruvilla is a consultant for Cefaly, Neurolief, Theranica, Now What Media, and Kx Advisors. She is on the speakers bureau for AbbVie/Allergan, Amgen/Novartis, Lilly, the American Headache Society, Biohaven, and CME meeting, and she is on an advisory board at AbbVie/Allergan, Lilly, Theranica, and Amgen/Novartis. She is editor and associate editor of Healthline and is an author for WebMD/Medscape, Healthline.

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

Self-administered external trigeminal nerve stimulation (E-TNS) that is available over the counter is superior to sham stimulation in relieving pain for patients with episodic migraine, results from a phase 3 study show.

This is great news for headache patients who want to explore nondrug treatment options, said study investigator Deena E. Kuruvilla, MD, neurologist and headache specialist at the Westport Headache Institute, Connecticut.

She added that such devices “aren’t always part of the conversation when we’re discussing preventive and acute treatments with our patients. Making this a regular part of the conversation might be helpful to patients.”

The findings were presented at ANA 2021: 146th Annual Meeting of the American Neurological Association (ANA), which was held online.
 

A key therapeutic target

The randomized, double-blind trial compared E-TNS with sham stimulation for the acute treatment of migraine.

The E-TNS device (Verum Cefaly Abortive Program) stimulates the supraorbital nerve in the forehead. “This nerve is a branch of the trigeminal nerve, which is thought to be the key player in migraine pathophysiology,” Dr. Kuruvilla noted.

The device has been cleared by the U.S. Food and Drug Administration for acute and preventive treatment of migraine.

During a run-in period before randomization, patients were asked to keep a detailed headache diary and to become comfortable using the trial device to treat an acute migraine attack at home.

The study enrolled 538 adult patients at 10 centers. The patients were aged 18 to 65 years, and they had been having episodic migraines, with or without aura, for at least a year. The participants had to have received a migraine diagnosis before age 50, and they had to be experiencing an attack of migraine 2 to 8 days per month.

The patients used the device only for a migraine of at least moderate intensity that was accompanied by at least one migraine-associated symptom, such as photophobia, phonophobia, or nausea. They were asked not to take rescue medication prior to or during a therapy session.

Study participants applied either neurostimulation or sham stimulation for a continuous 2-hour period within 4 hours of a migraine attack over the 2-month study period.

The two primary endpoints were pain freedom and freedom from the most bothersome migraine-associated symptoms at 2 hours.

Compared to sham treatment, active stimulation was more effective in achieving pain freedom (P = .043) and freedom from the most bothersome migraine-associated symptom (P = .001) at 2 hours.

“So the study did meet both primary endpoints with statistical significance,” said Dr. Kuruvilla.

The five secondary endpoints included pain relief at 2 hours; absence of all migraine-associated symptoms at 2 hours; use of rescue medication within 24 hours; sustained pain freedom at 24 hours; and sustained pain relief at 24 hours.

All but one of these endpoints reached statistical significance, showing superiority for the active intervention. The only exception was in regard to use of rescue medication.

The most common adverse event (AE) was forehead paresthesia, discomfort, or burning, which was more common in the active-treatment group than in the sham-treatment group (P = .009). There were four cases of nausea or vomiting in the active-treatment group and none in the sham-treatment group. There were no serious AEs.
 

Available over the counter

Both moderators of the headache poster tour that featured this study – Justin C. McArthur, MBBS, from Johns Hopkins University, Baltimore, and Steven Galetta, MD, from NYU Grossman School of Medicine – praised the presentation.

Dr. Galetta questioned whether patients were receiving preventive therapies. Dr. Kuruvilla said that the patients were allowed to enter the trial while taking preventive therapies, including antiepileptic treatments, blood pressure medications, and antidepressants, but that they had to be receiving stable doses.

The investigators didn’t distinguish between participants who were taking preventive therapies and those who weren’t, she said. “The aim was really to look at acute treatment for migraine,” and patients taking such medication “had been stable on their regimen for a pretty prolonged period of time.”

Dr. McArthur asked about the origin of the nausea some patients experienced.

It was difficult to determine whether the nausea was an aspect of an individual patient’s migraine attack or was an effect of the stimulation, said Dr. Kuruvilla. She noted that some patients found the vibrating sensation from the device uncomfortable and that nausea could be associated with pain at the site.

The device costs $300 to $400 (U.S.) and is available over the counter.

Dr. Kuruvilla is a consultant for Cefaly, Neurolief, Theranica, Now What Media, and Kx Advisors. She is on the speakers bureau for AbbVie/Allergan, Amgen/Novartis, Lilly, the American Headache Society, Biohaven, and CME meeting, and she is on an advisory board at AbbVie/Allergan, Lilly, Theranica, and Amgen/Novartis. She is editor and associate editor of Healthline and is an author for WebMD/Medscape, Healthline.

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

Background: Geographic cohorting localizes hospitalist teams to a single unit. It has previously been shown to improve outcomes.

An important limitation of this study is that the investigators did not evaluate clinical outcomes or provider satisfaction. This may give some pause to the widespread push toward geographic cohorting.

Bottom line: More frequent interruptions may partially offset potential increases in patient-hospitalist interactions achieved through geographic cohorting.

Citation: Kara A et al. A time motion study evaluating the impact of geographic cohorting of hospitalists. J Hosp Med. 2020;15:338-44.

Dr. Sweigart is a hospitalist at the Lexington (Ky.) VA Health Care System.

Background: Geographic cohorting localizes hospitalist teams to a single unit. It has previously been shown to improve outcomes.

An important limitation of this study is that the investigators did not evaluate clinical outcomes or provider satisfaction. This may give some pause to the widespread push toward geographic cohorting.

Bottom line: More frequent interruptions may partially offset potential increases in patient-hospitalist interactions achieved through geographic cohorting.

Citation: Kara A et al. A time motion study evaluating the impact of geographic cohorting of hospitalists. J Hosp Med. 2020;15:338-44.

Dr. Sweigart is a hospitalist at the Lexington (Ky.) VA Health Care System.

Background: Geographic cohorting localizes hospitalist teams to a single unit. It has previously been shown to improve outcomes.

An important limitation of this study is that the investigators did not evaluate clinical outcomes or provider satisfaction. This may give some pause to the widespread push toward geographic cohorting.

Bottom line: More frequent interruptions may partially offset potential increases in patient-hospitalist interactions achieved through geographic cohorting.

Citation: Kara A et al. A time motion study evaluating the impact of geographic cohorting of hospitalists. J Hosp Med. 2020;15:338-44.

Dr. Sweigart is a hospitalist at the Lexington (Ky.) VA Health Care System.

Survey results paint a stark picture of discrimination among racial minorities in the cardiology workforce but also a strong sense of belonging.

Hiraman/Getty Images

Among respondents to the 2015 American College of Cardiology (ACC) Professional Life Survey, which is the most recent survey, over half (52.3%) of underrepresented racial and ethnic minorities (URMs) and 45.5% of Asian or Pacific Islanders reported experiencing discrimination compared with 36.4% of Whites (both P < .01).

Nevertheless, 91.2% of URMs reported being satisfied with their career, as did 90% of Asians or Pacific Islanders and 89.1% of Whites.

Satisfaction with financial compensation also did not differ between groups, and most cardiologists believed their opportunities for advancement were similar to those of their peers.

One possible explanation is that the respondents may simply be people who’ve had better experiences, lead author Kevin L. Thomas, MD, Duke Clinical Research Institute, Durham, N.C., and colleagues told this news organization. A second hypothesis looks more to sheer determination, or grit.

“Perhaps along the sometimes circuitous pathway to being a cardiologist – which is a lot of training, a lot of standardized testing, a lot of applications – that maybe you sub-select a group of individuals who are simply more resilient based on their life experiences and things that they’ve overcome to get where they are,” he said.

Interestingly, rates of burnout were lower among URMs (22.4%) and Asians/Pacific Islanders (20.1%) than Whites (30.3%; P = .02 and P < .01, respectively). The finding is unexpected but in line with a recent report of more than 4,400 U.S. physicians finding lower odds of burnout among Asian, Hispanic/Latinx, and Black physicians.

The new study, published October 18 in the Journal of the American College of Cardiology, however, affirms that women of all racial and ethnic groups face significant headwinds in the White, male-dominated cardiology workforce.

Just 13.9% of White men reported experiencing discrimination, compared with 44.6% of URM men and 36.2% of Asians/Pacific Islander men. In comparison, 69.2% of White women reported discrimination, as did 62.7% of URM women and 57% of Asian/Pacific Islander women (both P <.01).

“When you look specifically at White men versus White women, there is a large discrepancy there, and it just shows us, I think, for a lot of different groups, we still have a long way to go in terms of trying to achieve equity and to try to be inclusive in the workplace,” Dr. Thomas said.

Men were more likely to experience race- and religion-based discrimination in the workplace, whereas nearly all women reported sex discrimination, with parenting an important second. Approximately 85% of cardiologists reported being satisfied with their family lives, although unpublished data suggest URMs were less likely to be married and to have fewer children, Dr. Thomas said.

During job negotiations, URM cardiologists were less likely to prioritize salary, benefits, and work hours for their first job (13.6%, 10.9% 19.3%) than White cardiologists (20.6%, 23.3%, 31.3%; P < .02 for all).

In subsequent negotiations, URMs placed more emphasis on salary, benefits, and work hours than Whites, whereas both URMs and Asians/Pacific Islanders placed a greater importance on travel benefits, diversity, mentoring, workspace, time to promotion, academic rank, and roles with community, institutional, or national recognition, which the authors say, “might indicate a greater need to overcome systemic barriers.”

Three-fourths of all cardiologist respondents had a mentor during training, which can take many shapes, Dr. Thomas noted. “Within my own section as an electrophysiologist, which is a very subspecialized category, we have four Black electrophysiologists, and I think it was because many of us mentored each other as we came along, and it inspired us.”

URMs are more likely to experience the so-called “minority tax” of being tapped for added responsibilities in the name of inclusivity efforts, he said, and called on individuals from the dominant culture to mentor or sponsor cardiologists from other racial groups and to carve out leadership pathways for women and minorities so they “can use their gifts to benefit the profession at large,” leading clinical trials or steering committees and serving in high-profile roles.

Although the events of 2020 sharpened attention on the issue of diversity in America, Dr. Thomas and colleagues say that more work needs to be done defining the problem and that professional organizations and health systems also should systematically collect sex, racial, and ethnic identifies of members using classifications similar to the 2020 U.S. Census.

The study was based on 2,245 respondents to the 2015 Professional Life Survey, which was not specifically designed to assess racial/ethnic diversity topics and had a response rate of 21%, which limited representatives of each group.

In all, 197 were from URMs (80 Blacks, 113 Hispanics, 4 Native Americans), 564 were Asians/Pacific Islanders, 1,447 were Whites, and 37 listed multiracial/other. More than half (58%) were men, and most were adult cardiologists (83% to 85%), followed by pediatric cardiology (6% to 10%) and cardiovascular surgery (1% to 2%).

“Further research is needed to understand these findings and their significance, because ongoing efforts within ACC and other organizations to increase diversity will fail unless this is successfully addressed,” the authors conclude.

To that end, Dr. Thomas said they are looking to develop a new survey that taps other groups like the Association of Black Cardiologists and members of the LGBTQ community.

“I’m really excited about the opportunity to develop a survey that specifically has the objective of trying to understand the experiences of systematically disadvantaged, historically marginalized groups to see if we can see the same information, but maybe through a clear lens, and then be able to develop strategies to mitigate some of the challenges that we see” he said. “So we can increase the numbers and also have a workforce that is reflective of the populations that we take care of and the nation as a whole.”

The study was funded by the American College of Cardiology. The authors have disclosed no relevant financial relationships.

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

Survey results paint a stark picture of discrimination among racial minorities in the cardiology workforce but also a strong sense of belonging.

Hiraman/Getty Images

Among respondents to the 2015 American College of Cardiology (ACC) Professional Life Survey, which is the most recent survey, over half (52.3%) of underrepresented racial and ethnic minorities (URMs) and 45.5% of Asian or Pacific Islanders reported experiencing discrimination compared with 36.4% of Whites (both P < .01).

Nevertheless, 91.2% of URMs reported being satisfied with their career, as did 90% of Asians or Pacific Islanders and 89.1% of Whites.

Satisfaction with financial compensation also did not differ between groups, and most cardiologists believed their opportunities for advancement were similar to those of their peers.

One possible explanation is that the respondents may simply be people who’ve had better experiences, lead author Kevin L. Thomas, MD, Duke Clinical Research Institute, Durham, N.C., and colleagues told this news organization. A second hypothesis looks more to sheer determination, or grit.

“Perhaps along the sometimes circuitous pathway to being a cardiologist – which is a lot of training, a lot of standardized testing, a lot of applications – that maybe you sub-select a group of individuals who are simply more resilient based on their life experiences and things that they’ve overcome to get where they are,” he said.

Interestingly, rates of burnout were lower among URMs (22.4%) and Asians/Pacific Islanders (20.1%) than Whites (30.3%; P = .02 and P < .01, respectively). The finding is unexpected but in line with a recent report of more than 4,400 U.S. physicians finding lower odds of burnout among Asian, Hispanic/Latinx, and Black physicians.

The new study, published October 18 in the Journal of the American College of Cardiology, however, affirms that women of all racial and ethnic groups face significant headwinds in the White, male-dominated cardiology workforce.

Just 13.9% of White men reported experiencing discrimination, compared with 44.6% of URM men and 36.2% of Asians/Pacific Islander men. In comparison, 69.2% of White women reported discrimination, as did 62.7% of URM women and 57% of Asian/Pacific Islander women (both P <.01).

“When you look specifically at White men versus White women, there is a large discrepancy there, and it just shows us, I think, for a lot of different groups, we still have a long way to go in terms of trying to achieve equity and to try to be inclusive in the workplace,” Dr. Thomas said.

Men were more likely to experience race- and religion-based discrimination in the workplace, whereas nearly all women reported sex discrimination, with parenting an important second. Approximately 85% of cardiologists reported being satisfied with their family lives, although unpublished data suggest URMs were less likely to be married and to have fewer children, Dr. Thomas said.

During job negotiations, URM cardiologists were less likely to prioritize salary, benefits, and work hours for their first job (13.6%, 10.9% 19.3%) than White cardiologists (20.6%, 23.3%, 31.3%; P < .02 for all).

In subsequent negotiations, URMs placed more emphasis on salary, benefits, and work hours than Whites, whereas both URMs and Asians/Pacific Islanders placed a greater importance on travel benefits, diversity, mentoring, workspace, time to promotion, academic rank, and roles with community, institutional, or national recognition, which the authors say, “might indicate a greater need to overcome systemic barriers.”

Three-fourths of all cardiologist respondents had a mentor during training, which can take many shapes, Dr. Thomas noted. “Within my own section as an electrophysiologist, which is a very subspecialized category, we have four Black electrophysiologists, and I think it was because many of us mentored each other as we came along, and it inspired us.”

URMs are more likely to experience the so-called “minority tax” of being tapped for added responsibilities in the name of inclusivity efforts, he said, and called on individuals from the dominant culture to mentor or sponsor cardiologists from other racial groups and to carve out leadership pathways for women and minorities so they “can use their gifts to benefit the profession at large,” leading clinical trials or steering committees and serving in high-profile roles.

Although the events of 2020 sharpened attention on the issue of diversity in America, Dr. Thomas and colleagues say that more work needs to be done defining the problem and that professional organizations and health systems also should systematically collect sex, racial, and ethnic identifies of members using classifications similar to the 2020 U.S. Census.

The study was based on 2,245 respondents to the 2015 Professional Life Survey, which was not specifically designed to assess racial/ethnic diversity topics and had a response rate of 21%, which limited representatives of each group.

In all, 197 were from URMs (80 Blacks, 113 Hispanics, 4 Native Americans), 564 were Asians/Pacific Islanders, 1,447 were Whites, and 37 listed multiracial/other. More than half (58%) were men, and most were adult cardiologists (83% to 85%), followed by pediatric cardiology (6% to 10%) and cardiovascular surgery (1% to 2%).

“Further research is needed to understand these findings and their significance, because ongoing efforts within ACC and other organizations to increase diversity will fail unless this is successfully addressed,” the authors conclude.

To that end, Dr. Thomas said they are looking to develop a new survey that taps other groups like the Association of Black Cardiologists and members of the LGBTQ community.

“I’m really excited about the opportunity to develop a survey that specifically has the objective of trying to understand the experiences of systematically disadvantaged, historically marginalized groups to see if we can see the same information, but maybe through a clear lens, and then be able to develop strategies to mitigate some of the challenges that we see” he said. “So we can increase the numbers and also have a workforce that is reflective of the populations that we take care of and the nation as a whole.”

The study was funded by the American College of Cardiology. The authors have disclosed no relevant financial relationships.

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

Survey results paint a stark picture of discrimination among racial minorities in the cardiology workforce but also a strong sense of belonging.

Hiraman/Getty Images

Among respondents to the 2015 American College of Cardiology (ACC) Professional Life Survey, which is the most recent survey, over half (52.3%) of underrepresented racial and ethnic minorities (URMs) and 45.5% of Asian or Pacific Islanders reported experiencing discrimination compared with 36.4% of Whites (both P < .01).

Nevertheless, 91.2% of URMs reported being satisfied with their career, as did 90% of Asians or Pacific Islanders and 89.1% of Whites.

Satisfaction with financial compensation also did not differ between groups, and most cardiologists believed their opportunities for advancement were similar to those of their peers.

One possible explanation is that the respondents may simply be people who’ve had better experiences, lead author Kevin L. Thomas, MD, Duke Clinical Research Institute, Durham, N.C., and colleagues told this news organization. A second hypothesis looks more to sheer determination, or grit.

“Perhaps along the sometimes circuitous pathway to being a cardiologist – which is a lot of training, a lot of standardized testing, a lot of applications – that maybe you sub-select a group of individuals who are simply more resilient based on their life experiences and things that they’ve overcome to get where they are,” he said.

Interestingly, rates of burnout were lower among URMs (22.4%) and Asians/Pacific Islanders (20.1%) than Whites (30.3%; P = .02 and P < .01, respectively). The finding is unexpected but in line with a recent report of more than 4,400 U.S. physicians finding lower odds of burnout among Asian, Hispanic/Latinx, and Black physicians.

The new study, published October 18 in the Journal of the American College of Cardiology, however, affirms that women of all racial and ethnic groups face significant headwinds in the White, male-dominated cardiology workforce.

Just 13.9% of White men reported experiencing discrimination, compared with 44.6% of URM men and 36.2% of Asians/Pacific Islander men. In comparison, 69.2% of White women reported discrimination, as did 62.7% of URM women and 57% of Asian/Pacific Islander women (both P <.01).

“When you look specifically at White men versus White women, there is a large discrepancy there, and it just shows us, I think, for a lot of different groups, we still have a long way to go in terms of trying to achieve equity and to try to be inclusive in the workplace,” Dr. Thomas said.

Men were more likely to experience race- and religion-based discrimination in the workplace, whereas nearly all women reported sex discrimination, with parenting an important second. Approximately 85% of cardiologists reported being satisfied with their family lives, although unpublished data suggest URMs were less likely to be married and to have fewer children, Dr. Thomas said.

During job negotiations, URM cardiologists were less likely to prioritize salary, benefits, and work hours for their first job (13.6%, 10.9% 19.3%) than White cardiologists (20.6%, 23.3%, 31.3%; P < .02 for all).

In subsequent negotiations, URMs placed more emphasis on salary, benefits, and work hours than Whites, whereas both URMs and Asians/Pacific Islanders placed a greater importance on travel benefits, diversity, mentoring, workspace, time to promotion, academic rank, and roles with community, institutional, or national recognition, which the authors say, “might indicate a greater need to overcome systemic barriers.”

Three-fourths of all cardiologist respondents had a mentor during training, which can take many shapes, Dr. Thomas noted. “Within my own section as an electrophysiologist, which is a very subspecialized category, we have four Black electrophysiologists, and I think it was because many of us mentored each other as we came along, and it inspired us.”

URMs are more likely to experience the so-called “minority tax” of being tapped for added responsibilities in the name of inclusivity efforts, he said, and called on individuals from the dominant culture to mentor or sponsor cardiologists from other racial groups and to carve out leadership pathways for women and minorities so they “can use their gifts to benefit the profession at large,” leading clinical trials or steering committees and serving in high-profile roles.

Although the events of 2020 sharpened attention on the issue of diversity in America, Dr. Thomas and colleagues say that more work needs to be done defining the problem and that professional organizations and health systems also should systematically collect sex, racial, and ethnic identifies of members using classifications similar to the 2020 U.S. Census.

The study was based on 2,245 respondents to the 2015 Professional Life Survey, which was not specifically designed to assess racial/ethnic diversity topics and had a response rate of 21%, which limited representatives of each group.

In all, 197 were from URMs (80 Blacks, 113 Hispanics, 4 Native Americans), 564 were Asians/Pacific Islanders, 1,447 were Whites, and 37 listed multiracial/other. More than half (58%) were men, and most were adult cardiologists (83% to 85%), followed by pediatric cardiology (6% to 10%) and cardiovascular surgery (1% to 2%).

“Further research is needed to understand these findings and their significance, because ongoing efforts within ACC and other organizations to increase diversity will fail unless this is successfully addressed,” the authors conclude.

To that end, Dr. Thomas said they are looking to develop a new survey that taps other groups like the Association of Black Cardiologists and members of the LGBTQ community.

“I’m really excited about the opportunity to develop a survey that specifically has the objective of trying to understand the experiences of systematically disadvantaged, historically marginalized groups to see if we can see the same information, but maybe through a clear lens, and then be able to develop strategies to mitigate some of the challenges that we see” he said. “So we can increase the numbers and also have a workforce that is reflective of the populations that we take care of and the nation as a whole.”

The study was funded by the American College of Cardiology. The authors have disclosed no relevant financial relationships.

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

A large international team of experts has developed two comprehensive guidelines for diagnosing, evaluating, and managing hypoparathyroidism and hyperparathyroidism, which replace guidelines issued 5 and 7 years ago.

Aliya A. Khan, MD, presented an overview of the hypoparathyroidism guidelines and John P. Bilezikian, MD, presented key aspects of the hyperparathyroidism guidelines at the American Society of Bone and Mineral Research (ASBMR) 2021 Annual Meeting.

The guidelines will be published as 17 articles in two issues of the society’s Journal of Bone and Mineral Research in 2022 – one on hypoparathyroidism and the other on hyperparathyroidism.

The work represents an “unprecedented effort” by more than 100 experts from 16 countries (United States, Canada, Australia, Brazil, China, Denmark, France, Germany, India, Italy, Israel, Lebanon, Singapore, Spain, Sweden, and the United Kingdom), Dr. Bilezikian told this news organization in an interview.

More than 100 international and national endocrine and osteoporosis organizations, societies, and patient advocacy groups from more than 50 countries have expressed interest in endorsing the guidelines.
 

Management of hypoparathyroidism

The new guidelines on hypoparathyroidism replace the guidelines issued in 2016 that were developed at the First International Conference on the Management of Hypoparathyroidism, Dr. Khan, from McMaster University, Hamilton, Ont., said in an email.

There was a need for new hypoparathyroidism guidelines, she explained, because of the better understanding of associated complications, how to predict who will develop hypoparathyroidism postoperatively (and how to prevent this), how and when to investigate a genetic cause further, when to consider parathyroid hormone (PTH) replacement therapy (and the benefits of the various molecules available today as well as those being evaluated in clinical research), and how to diagnose and manage hypoparathyroidism during pregnancy and lactation.

The experts in hypoparathyroidism were divided into four task forces that covered epidemiology and financial burden, etiology and pathophysiology, genetics and diagnosis, and patient evaluation and management.

The guidelines, developed over the past 18 months, provide detailed evidence-based graded (strong to weak) as well as ungraded (current practice) recommendations.

Summarizing a few key takeaways, Dr. Khan noted the guidelines recommend that clinicians treating patients with hypoparathyroidism should:

• Diagnose hypoparathyroidism if serum calcium corrected for albumin is low in the presence of a low or inappropriately normal PTH confirmed on two occasions 2 weeks apart (which may be supported by other specified abnormalities).
• Determine the cause for the hypoparathyroidism (which includes postsurgery, genetic variant, autoimmune, radiation, or idiopathic causes).
• Evaluate target organ damage.
• Try to achieve treatment goals and minimize risks for long-term complications.
• Consider PTH replacement therapy if patients have inadequate control, with symptoms of hypocalcemia or hypercalcemia, high phosphate, kidney disease, or high urine calcium, or poor quality of life. 

The guideline strongly recommends using PTH measurements after total thyroidectomy to try to predict which patients will develop permanent postsurgical hypoparathyroidism.

It provides a clinical approach for establishing the genetic etiology of hypoparathyroidism.

A meta-analysis of 81 studies identified that the most common symptoms/complications of chronic hypoparathyroidism were, in descending order, cataract (24%), infection (18%), nephrolithiasis, renal insufficiency, seizures, depression, ischemic heart disease, and arrhythmias.

Based on the best available evidence, the guideline advises that “clinicians need to carefully determine why a patient has hypoparathyroidism and develop an individualized treatment plan with conventional therapy consisting of calcium, active vitamin D, hydrochlorothiazide, and plain vitamin D,” Dr. Khan continued.

“If a patient has poorly controlled hypoparathyroidism with many symptoms or is not doing well, then clinicians must consider PTH replacement therapy, since this will replace the missing hormone, lower the urine calcium losses, bring the serum calcium back up to the normal reference range, and lower phosphate (which appears to be associated with kidney calcification and may also contribute to basal ganglia calcification and calcium deposits in the eye),” she noted.

The guideline also discusses the optimal way to monitor and treat patients during pregnancy, delivery, and breastfeeding to optimize outcomes for mother and baby. The key points are closer patient monitoring with normalization of calcium, urine calcium, phosphate, and vitamin D.  
 

Management of primary hyperparathyroidism

There was a need to update the previous 2014 guidelines developed at the Fourth International Workshop on the Management of Primary Hyperparathyroidism because, among other things, recent studies have provided new evidence about the different clinical phenotypes of primary hyperparathyroidism and ways the disease affects the skeleton and kidneys, Dr. Bilezikian, from the College of Physicians and Surgeons, Columbia University, New York, explained.

The experts in hyperparathyroidism were divided into four task forces that covered epidemiology, pathophysiology and genetics; classical and nonclassical disease manifestations; surgical aspects; and patient evaluation and management.

As part of these topics, the experts reviewed biochemical, skeletal, and renal findings, nonclassical features (such as neurocognitive complaints), nutritional and pharmacologic approaches, and disease course with or without surgical or medical intervention.

They made recommendations for diagnosis of hypercalcemic and normocalcemic phenotypes, differential diagnosis, evaluation of the skeleton and the kidney, indications for surgery, role of parathyroid imaging, indications for pharmacologic intervention, and monitoring.

“Consider the way this disease has appeared to change in the last 50 years,” said Dr. Bilezikian. In the 1940s, 50s, and 60s, patients with hyperparathyroidism were really sick and had severe bone disease and kidney disease. Then in the 70s, 80s, and 90s, the disease was more often discovered because of a screening test; high serum calcium was a hallmark of finding asymptomatic hyperparathyroidism.

In recent years, hyperparathyroidism is often discovered incidentally, when examining the skeleton or kidneys, he continued.

Primary hyperparathyroidism can now be subdivided into three types: patients who have target organ (kidney, bone) involvement, patients who don’t have this, and patients who have normocalcemic primary hyperparathyroidism.

The guideline discusses new medications that have become available for hyperparathyroidism, as well as surgery (the only cure), including how preoperative imaging can identify the overactive parathyroid gland, and the guidelines go into detail about how to monitor a patient and why a clinician would or would not recommend surgery, Dr. Bilezikian explained.

In the end, treatment is tailored to the individual.

Last, the guideline identifies eight areas where more research is needed.

The guidelines were funded by unrestricted educational grants from Amolyt, Ascendis, Calcilytix, and Takeda. Dr. Khan has reported participating on advisory boards for Alexion, Amgen, Amolyt, and Takeda, being a consultant for Amgen, receiving grants from Alexion, Amgen, Takeda, and Ascendis, being an investigator for Alexion, Amgen, Takeda, Ascendis, and Chugai, and being a speaker for Alexion, Amgen, Takeda, and Ultragenyx. Dr. Bilezikian has reported no relevant financial relationships.

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

A large international team of experts has developed two comprehensive guidelines for diagnosing, evaluating, and managing hypoparathyroidism and hyperparathyroidism, which replace guidelines issued 5 and 7 years ago.

Aliya A. Khan, MD, presented an overview of the hypoparathyroidism guidelines and John P. Bilezikian, MD, presented key aspects of the hyperparathyroidism guidelines at the American Society of Bone and Mineral Research (ASBMR) 2021 Annual Meeting.

The guidelines will be published as 17 articles in two issues of the society’s Journal of Bone and Mineral Research in 2022 – one on hypoparathyroidism and the other on hyperparathyroidism.

The work represents an “unprecedented effort” by more than 100 experts from 16 countries (United States, Canada, Australia, Brazil, China, Denmark, France, Germany, India, Italy, Israel, Lebanon, Singapore, Spain, Sweden, and the United Kingdom), Dr. Bilezikian told this news organization in an interview.

More than 100 international and national endocrine and osteoporosis organizations, societies, and patient advocacy groups from more than 50 countries have expressed interest in endorsing the guidelines.
 

Management of hypoparathyroidism

The new guidelines on hypoparathyroidism replace the guidelines issued in 2016 that were developed at the First International Conference on the Management of Hypoparathyroidism, Dr. Khan, from McMaster University, Hamilton, Ont., said in an email.

There was a need for new hypoparathyroidism guidelines, she explained, because of the better understanding of associated complications, how to predict who will develop hypoparathyroidism postoperatively (and how to prevent this), how and when to investigate a genetic cause further, when to consider parathyroid hormone (PTH) replacement therapy (and the benefits of the various molecules available today as well as those being evaluated in clinical research), and how to diagnose and manage hypoparathyroidism during pregnancy and lactation.

The experts in hypoparathyroidism were divided into four task forces that covered epidemiology and financial burden, etiology and pathophysiology, genetics and diagnosis, and patient evaluation and management.

The guidelines, developed over the past 18 months, provide detailed evidence-based graded (strong to weak) as well as ungraded (current practice) recommendations.

Summarizing a few key takeaways, Dr. Khan noted the guidelines recommend that clinicians treating patients with hypoparathyroidism should:

• Diagnose hypoparathyroidism if serum calcium corrected for albumin is low in the presence of a low or inappropriately normal PTH confirmed on two occasions 2 weeks apart (which may be supported by other specified abnormalities).
• Determine the cause for the hypoparathyroidism (which includes postsurgery, genetic variant, autoimmune, radiation, or idiopathic causes).
• Evaluate target organ damage.
• Try to achieve treatment goals and minimize risks for long-term complications.
• Consider PTH replacement therapy if patients have inadequate control, with symptoms of hypocalcemia or hypercalcemia, high phosphate, kidney disease, or high urine calcium, or poor quality of life. 

The guideline strongly recommends using PTH measurements after total thyroidectomy to try to predict which patients will develop permanent postsurgical hypoparathyroidism.

It provides a clinical approach for establishing the genetic etiology of hypoparathyroidism.

A meta-analysis of 81 studies identified that the most common symptoms/complications of chronic hypoparathyroidism were, in descending order, cataract (24%), infection (18%), nephrolithiasis, renal insufficiency, seizures, depression, ischemic heart disease, and arrhythmias.

Based on the best available evidence, the guideline advises that “clinicians need to carefully determine why a patient has hypoparathyroidism and develop an individualized treatment plan with conventional therapy consisting of calcium, active vitamin D, hydrochlorothiazide, and plain vitamin D,” Dr. Khan continued.

“If a patient has poorly controlled hypoparathyroidism with many symptoms or is not doing well, then clinicians must consider PTH replacement therapy, since this will replace the missing hormone, lower the urine calcium losses, bring the serum calcium back up to the normal reference range, and lower phosphate (which appears to be associated with kidney calcification and may also contribute to basal ganglia calcification and calcium deposits in the eye),” she noted.

The guideline also discusses the optimal way to monitor and treat patients during pregnancy, delivery, and breastfeeding to optimize outcomes for mother and baby. The key points are closer patient monitoring with normalization of calcium, urine calcium, phosphate, and vitamin D.  
 

Management of primary hyperparathyroidism

There was a need to update the previous 2014 guidelines developed at the Fourth International Workshop on the Management of Primary Hyperparathyroidism because, among other things, recent studies have provided new evidence about the different clinical phenotypes of primary hyperparathyroidism and ways the disease affects the skeleton and kidneys, Dr. Bilezikian, from the College of Physicians and Surgeons, Columbia University, New York, explained.

The experts in hyperparathyroidism were divided into four task forces that covered epidemiology, pathophysiology and genetics; classical and nonclassical disease manifestations; surgical aspects; and patient evaluation and management.

As part of these topics, the experts reviewed biochemical, skeletal, and renal findings, nonclassical features (such as neurocognitive complaints), nutritional and pharmacologic approaches, and disease course with or without surgical or medical intervention.

They made recommendations for diagnosis of hypercalcemic and normocalcemic phenotypes, differential diagnosis, evaluation of the skeleton and the kidney, indications for surgery, role of parathyroid imaging, indications for pharmacologic intervention, and monitoring.

“Consider the way this disease has appeared to change in the last 50 years,” said Dr. Bilezikian. In the 1940s, 50s, and 60s, patients with hyperparathyroidism were really sick and had severe bone disease and kidney disease. Then in the 70s, 80s, and 90s, the disease was more often discovered because of a screening test; high serum calcium was a hallmark of finding asymptomatic hyperparathyroidism.

In recent years, hyperparathyroidism is often discovered incidentally, when examining the skeleton or kidneys, he continued.

Primary hyperparathyroidism can now be subdivided into three types: patients who have target organ (kidney, bone) involvement, patients who don’t have this, and patients who have normocalcemic primary hyperparathyroidism.

The guideline discusses new medications that have become available for hyperparathyroidism, as well as surgery (the only cure), including how preoperative imaging can identify the overactive parathyroid gland, and the guidelines go into detail about how to monitor a patient and why a clinician would or would not recommend surgery, Dr. Bilezikian explained.

In the end, treatment is tailored to the individual.

Last, the guideline identifies eight areas where more research is needed.

The guidelines were funded by unrestricted educational grants from Amolyt, Ascendis, Calcilytix, and Takeda. Dr. Khan has reported participating on advisory boards for Alexion, Amgen, Amolyt, and Takeda, being a consultant for Amgen, receiving grants from Alexion, Amgen, Takeda, and Ascendis, being an investigator for Alexion, Amgen, Takeda, Ascendis, and Chugai, and being a speaker for Alexion, Amgen, Takeda, and Ultragenyx. Dr. Bilezikian has reported no relevant financial relationships.

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

A large international team of experts has developed two comprehensive guidelines for diagnosing, evaluating, and managing hypoparathyroidism and hyperparathyroidism, which replace guidelines issued 5 and 7 years ago.

Aliya A. Khan, MD, presented an overview of the hypoparathyroidism guidelines and John P. Bilezikian, MD, presented key aspects of the hyperparathyroidism guidelines at the American Society of Bone and Mineral Research (ASBMR) 2021 Annual Meeting.

The guidelines will be published as 17 articles in two issues of the society’s Journal of Bone and Mineral Research in 2022 – one on hypoparathyroidism and the other on hyperparathyroidism.

The work represents an “unprecedented effort” by more than 100 experts from 16 countries (United States, Canada, Australia, Brazil, China, Denmark, France, Germany, India, Italy, Israel, Lebanon, Singapore, Spain, Sweden, and the United Kingdom), Dr. Bilezikian told this news organization in an interview.

More than 100 international and national endocrine and osteoporosis organizations, societies, and patient advocacy groups from more than 50 countries have expressed interest in endorsing the guidelines.
 

Management of hypoparathyroidism

The new guidelines on hypoparathyroidism replace the guidelines issued in 2016 that were developed at the First International Conference on the Management of Hypoparathyroidism, Dr. Khan, from McMaster University, Hamilton, Ont., said in an email.

There was a need for new hypoparathyroidism guidelines, she explained, because of the better understanding of associated complications, how to predict who will develop hypoparathyroidism postoperatively (and how to prevent this), how and when to investigate a genetic cause further, when to consider parathyroid hormone (PTH) replacement therapy (and the benefits of the various molecules available today as well as those being evaluated in clinical research), and how to diagnose and manage hypoparathyroidism during pregnancy and lactation.

The experts in hypoparathyroidism were divided into four task forces that covered epidemiology and financial burden, etiology and pathophysiology, genetics and diagnosis, and patient evaluation and management.

The guidelines, developed over the past 18 months, provide detailed evidence-based graded (strong to weak) as well as ungraded (current practice) recommendations.

Summarizing a few key takeaways, Dr. Khan noted the guidelines recommend that clinicians treating patients with hypoparathyroidism should:

• Diagnose hypoparathyroidism if serum calcium corrected for albumin is low in the presence of a low or inappropriately normal PTH confirmed on two occasions 2 weeks apart (which may be supported by other specified abnormalities).
• Determine the cause for the hypoparathyroidism (which includes postsurgery, genetic variant, autoimmune, radiation, or idiopathic causes).
• Evaluate target organ damage.
• Try to achieve treatment goals and minimize risks for long-term complications.
• Consider PTH replacement therapy if patients have inadequate control, with symptoms of hypocalcemia or hypercalcemia, high phosphate, kidney disease, or high urine calcium, or poor quality of life. 

The guideline strongly recommends using PTH measurements after total thyroidectomy to try to predict which patients will develop permanent postsurgical hypoparathyroidism.

It provides a clinical approach for establishing the genetic etiology of hypoparathyroidism.

A meta-analysis of 81 studies identified that the most common symptoms/complications of chronic hypoparathyroidism were, in descending order, cataract (24%), infection (18%), nephrolithiasis, renal insufficiency, seizures, depression, ischemic heart disease, and arrhythmias.

Based on the best available evidence, the guideline advises that “clinicians need to carefully determine why a patient has hypoparathyroidism and develop an individualized treatment plan with conventional therapy consisting of calcium, active vitamin D, hydrochlorothiazide, and plain vitamin D,” Dr. Khan continued.

“If a patient has poorly controlled hypoparathyroidism with many symptoms or is not doing well, then clinicians must consider PTH replacement therapy, since this will replace the missing hormone, lower the urine calcium losses, bring the serum calcium back up to the normal reference range, and lower phosphate (which appears to be associated with kidney calcification and may also contribute to basal ganglia calcification and calcium deposits in the eye),” she noted.

The guideline also discusses the optimal way to monitor and treat patients during pregnancy, delivery, and breastfeeding to optimize outcomes for mother and baby. The key points are closer patient monitoring with normalization of calcium, urine calcium, phosphate, and vitamin D.  
 

Management of primary hyperparathyroidism

There was a need to update the previous 2014 guidelines developed at the Fourth International Workshop on the Management of Primary Hyperparathyroidism because, among other things, recent studies have provided new evidence about the different clinical phenotypes of primary hyperparathyroidism and ways the disease affects the skeleton and kidneys, Dr. Bilezikian, from the College of Physicians and Surgeons, Columbia University, New York, explained.

The experts in hyperparathyroidism were divided into four task forces that covered epidemiology, pathophysiology and genetics; classical and nonclassical disease manifestations; surgical aspects; and patient evaluation and management.

As part of these topics, the experts reviewed biochemical, skeletal, and renal findings, nonclassical features (such as neurocognitive complaints), nutritional and pharmacologic approaches, and disease course with or without surgical or medical intervention.

They made recommendations for diagnosis of hypercalcemic and normocalcemic phenotypes, differential diagnosis, evaluation of the skeleton and the kidney, indications for surgery, role of parathyroid imaging, indications for pharmacologic intervention, and monitoring.

“Consider the way this disease has appeared to change in the last 50 years,” said Dr. Bilezikian. In the 1940s, 50s, and 60s, patients with hyperparathyroidism were really sick and had severe bone disease and kidney disease. Then in the 70s, 80s, and 90s, the disease was more often discovered because of a screening test; high serum calcium was a hallmark of finding asymptomatic hyperparathyroidism.

In recent years, hyperparathyroidism is often discovered incidentally, when examining the skeleton or kidneys, he continued.

Primary hyperparathyroidism can now be subdivided into three types: patients who have target organ (kidney, bone) involvement, patients who don’t have this, and patients who have normocalcemic primary hyperparathyroidism.

The guideline discusses new medications that have become available for hyperparathyroidism, as well as surgery (the only cure), including how preoperative imaging can identify the overactive parathyroid gland, and the guidelines go into detail about how to monitor a patient and why a clinician would or would not recommend surgery, Dr. Bilezikian explained.

In the end, treatment is tailored to the individual.

Last, the guideline identifies eight areas where more research is needed.

The guidelines were funded by unrestricted educational grants from Amolyt, Ascendis, Calcilytix, and Takeda. Dr. Khan has reported participating on advisory boards for Alexion, Amgen, Amolyt, and Takeda, being a consultant for Amgen, receiving grants from Alexion, Amgen, Takeda, and Ascendis, being an investigator for Alexion, Amgen, Takeda, Ascendis, and Chugai, and being a speaker for Alexion, Amgen, Takeda, and Ultragenyx. Dr. Bilezikian has reported no relevant financial relationships.

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

Targeted agents for the treatment of diffuse large B-cell lymphoma (DLBCL) should be used in the context of oncogenic addictions within the lymphoma cells, and a thorough molecular analysis should be conducted prior to using specific agents, a review of the relevant literature suggests.

“In addition ... single-agent regimens are most likely not efficient enough to substantially improve the outcome of patients with DLBCL,” Wendan Xu and colleagues at University Hospital Munster, Germany, concluded, based on their review.

Indeed, novel combinations that include B-cell receptor (BCR) signaling and phosphatidylinositol 3-kinase (PI3K) inhibitors are needed for DLBCL treatment, and treatment should also include conventional chemoimmunotherapeutic regimens as well as other targeted agents and novel immunologic approaches, they wrote. Such novel combinations could overcome mechanisms of resistance and increase cure rates in individuals with DLBCL, they contended.

The authors’ observations are based on a search of the available data, from which they summarized the “current understanding of BCR signaling with a special focus on the PI3K pathway and its role in the pathogenesis of DLBCL.”

The addition of the anti-CD20 antibody rituximab to the CHOP regimen (cyclophosphamide, doxorubicin, vincristine, and prednisone) significantly improved outcomes for patients with DLBCL, but about a third of patients are not cured by the rituximab-CHOP (R-CHOP) regimen and subsequent therapies, they said, explaining their rationale for the review.

“A better understanding of the molecular pathogenesis is warranted to use novel targeted agents in an optimal manner,” they said.

The authors also addressed clinical implications of the findings, and mechanisms of resistance to PI3k inhibitors. For example, they noted that:

–Bruton’s tyrosine kinase (BTK) inhibitors may be beneficial when added to R-CHOP.

In the randomized phase 3 PHOENIX trial, ibrutinib plus R-CHOP versus R-CHOP alone in patients with non–germinal center B-cell (non-GCB) DLBCL showed a survival benefit in patients over 60 years of age, which suggests a possible role for “an intensified R-CHOP regimen that includes a BTK inhibitor” in these patients, they said. They added that confirmatory trials are under way, including the ESCALADE trial looking at the second-generation BTK inhibitor acalabrutinib combined with R-CHOP versus R-CHOP alone in patients with untreated DLBCL.

–Results have been mixed with PI3K inhibitors.

Various PI3K inhibitors have been evaluated for the treatment of patients with DLBCL.

Idelalisib, a first-in-class PI3K-specific inhibitor approved for treatment of relapsed/refractory (r/r) follicular lymphoma, small lymphocytic lymphoma, and chronic lymphocytic leukemia (CLL), showed only modest activity in preclinical DLBCL models, and no responses were detectable in a small trial of patients with r/r DLBCL, the authors said. “Severe toxic side effects and treatment-related deaths occurred in several clinical trials that tested idelalisib in combination with antibodies alone or with antibodies and chemotherapy, leading to the premature discontinuation of some of these studies,” they noted.

Other studies investigating idelalisib plus lenalidomide and rituximab or the spleen tyrosine kinase (SYK) inhibitor entospletinib in patients with r/r CLL or lymphoma were also halted because of “overwhelming, immune-mediated pulmonary and/or hepatic toxicities.”

Copanlisib, an intravenous pan-class I PI3K inhibitor with preferential inhibition of PI3Ka and PI3Kd, showed some promise as monotherapy in a phase 2 trial of patients with r/r DLBCL. The overall response rate was about 20%, and response was “numerically higher” in activated B-cell like (ABC) DLBCL, compared with GCB DLBCL (32% vs. 13%), confirming preclinical data that showed PI3Ka/d inhibition effectiveness mainly in ABC DLBCL.

“Compared with idelalisib, copanlisib appears to have a more favorable toxicity profile, with a lower incidence of severe complications,” they said, adding that a phase 2 trial of copanlisib plus R-CHOP as first-line therapy for patients with DLBCL is under way.

Further, monotherapy with buparlisib, a pan-class I PI3K inhibitor, was associated with a low response rate of 11.5% in a DLBCL subcohort in a phase 2 study, whereas parsaclisib, a next-generation inhibitor with specificity to the PI3Kd isoform, showed efficacy as a monotherapy in patients with r/r DLBCL in a phase 2 study (overall response rate, 25.5%), they said, adding that other PI3K inhibitors with additional inhibitory effects are under clinical development.

–Various molecular mechanisms of resistance to PI3K inhibitors have been described preclinically and clinically.

In an unbiased exploratory analysis of samples from patients treated with copanlisib, a 16-gene mutation signature that separated responders from nonresponders was identified, the authors said.

The finding suggests that genetic aberrations dictate response to PI3K inhibitors, they noted.

“This 16-gene signature included TNFAIP3, CREBBP, and PRDM1, which are known to be important in the molecular pathogenesis of DLBCL,” they wrote. A composite score was developed to reflect the numerical presence or absence of mutations in the gene set, they explained, adding that patients with a high composite score had a significantly higher overall response rate and longer progression-free survival than did patients with a lower score.

In addition, idelalisib treatment resulted in a feedback activation of PI3Ka in ABC DLBCL cells.

“This rebound of PI3K activity was overcome by subsequent PI3Ka inhibition in preclinical DLBCL models, further underscoring the necessity of inhibiting both PI3Ka and PI3Kd to achieve responses in ABC DLBCL,” they wrote, adding that “[i]n ABC DLBCL models treated with the PI3Ka/PI3Kd inhibitor AZD8835, activated CARD11 mutations were identified as a mechanism of resistance.”

Investigations looking at various treatment combinations to overcome resistance to PI3K inhibition and improve the efficacy of targeted approaches are under way, they said.

For example, copanlisib plus the BCL-2 inhibitor venetoclax showed “synergistic activity in BCR-dependent DLBCLs, with genetic bases for BCL-2 dysregulation in vitro and in vivo,” and combination treatment with umbralisib and the proteasome inhibitor carfilzomib showed synergistic cytotoxicity in B-cell lymphoma, they said, noting that the latter combination is currently being evaluated in patients with DLBCL.

This work was supported by a research grant from the Deutsche Krebshilfe. Dr. Xu reported having no financial disclosures.

[email protected]

Targeted agents for the treatment of diffuse large B-cell lymphoma (DLBCL) should be used in the context of oncogenic addictions within the lymphoma cells, and a thorough molecular analysis should be conducted prior to using specific agents, a review of the relevant literature suggests.

“In addition ... single-agent regimens are most likely not efficient enough to substantially improve the outcome of patients with DLBCL,” Wendan Xu and colleagues at University Hospital Munster, Germany, concluded, based on their review.

Indeed, novel combinations that include B-cell receptor (BCR) signaling and phosphatidylinositol 3-kinase (PI3K) inhibitors are needed for DLBCL treatment, and treatment should also include conventional chemoimmunotherapeutic regimens as well as other targeted agents and novel immunologic approaches, they wrote. Such novel combinations could overcome mechanisms of resistance and increase cure rates in individuals with DLBCL, they contended.

The authors’ observations are based on a search of the available data, from which they summarized the “current understanding of BCR signaling with a special focus on the PI3K pathway and its role in the pathogenesis of DLBCL.”

The addition of the anti-CD20 antibody rituximab to the CHOP regimen (cyclophosphamide, doxorubicin, vincristine, and prednisone) significantly improved outcomes for patients with DLBCL, but about a third of patients are not cured by the rituximab-CHOP (R-CHOP) regimen and subsequent therapies, they said, explaining their rationale for the review.

“A better understanding of the molecular pathogenesis is warranted to use novel targeted agents in an optimal manner,” they said.

The authors also addressed clinical implications of the findings, and mechanisms of resistance to PI3k inhibitors. For example, they noted that:

–Bruton’s tyrosine kinase (BTK) inhibitors may be beneficial when added to R-CHOP.

In the randomized phase 3 PHOENIX trial, ibrutinib plus R-CHOP versus R-CHOP alone in patients with non–germinal center B-cell (non-GCB) DLBCL showed a survival benefit in patients over 60 years of age, which suggests a possible role for “an intensified R-CHOP regimen that includes a BTK inhibitor” in these patients, they said. They added that confirmatory trials are under way, including the ESCALADE trial looking at the second-generation BTK inhibitor acalabrutinib combined with R-CHOP versus R-CHOP alone in patients with untreated DLBCL.

–Results have been mixed with PI3K inhibitors.

Various PI3K inhibitors have been evaluated for the treatment of patients with DLBCL.

Idelalisib, a first-in-class PI3K-specific inhibitor approved for treatment of relapsed/refractory (r/r) follicular lymphoma, small lymphocytic lymphoma, and chronic lymphocytic leukemia (CLL), showed only modest activity in preclinical DLBCL models, and no responses were detectable in a small trial of patients with r/r DLBCL, the authors said. “Severe toxic side effects and treatment-related deaths occurred in several clinical trials that tested idelalisib in combination with antibodies alone or with antibodies and chemotherapy, leading to the premature discontinuation of some of these studies,” they noted.

Other studies investigating idelalisib plus lenalidomide and rituximab or the spleen tyrosine kinase (SYK) inhibitor entospletinib in patients with r/r CLL or lymphoma were also halted because of “overwhelming, immune-mediated pulmonary and/or hepatic toxicities.”

Copanlisib, an intravenous pan-class I PI3K inhibitor with preferential inhibition of PI3Ka and PI3Kd, showed some promise as monotherapy in a phase 2 trial of patients with r/r DLBCL. The overall response rate was about 20%, and response was “numerically higher” in activated B-cell like (ABC) DLBCL, compared with GCB DLBCL (32% vs. 13%), confirming preclinical data that showed PI3Ka/d inhibition effectiveness mainly in ABC DLBCL.

“Compared with idelalisib, copanlisib appears to have a more favorable toxicity profile, with a lower incidence of severe complications,” they said, adding that a phase 2 trial of copanlisib plus R-CHOP as first-line therapy for patients with DLBCL is under way.

Further, monotherapy with buparlisib, a pan-class I PI3K inhibitor, was associated with a low response rate of 11.5% in a DLBCL subcohort in a phase 2 study, whereas parsaclisib, a next-generation inhibitor with specificity to the PI3Kd isoform, showed efficacy as a monotherapy in patients with r/r DLBCL in a phase 2 study (overall response rate, 25.5%), they said, adding that other PI3K inhibitors with additional inhibitory effects are under clinical development.

–Various molecular mechanisms of resistance to PI3K inhibitors have been described preclinically and clinically.

In an unbiased exploratory analysis of samples from patients treated with copanlisib, a 16-gene mutation signature that separated responders from nonresponders was identified, the authors said.

The finding suggests that genetic aberrations dictate response to PI3K inhibitors, they noted.

“This 16-gene signature included TNFAIP3, CREBBP, and PRDM1, which are known to be important in the molecular pathogenesis of DLBCL,” they wrote. A composite score was developed to reflect the numerical presence or absence of mutations in the gene set, they explained, adding that patients with a high composite score had a significantly higher overall response rate and longer progression-free survival than did patients with a lower score.

In addition, idelalisib treatment resulted in a feedback activation of PI3Ka in ABC DLBCL cells.

“This rebound of PI3K activity was overcome by subsequent PI3Ka inhibition in preclinical DLBCL models, further underscoring the necessity of inhibiting both PI3Ka and PI3Kd to achieve responses in ABC DLBCL,” they wrote, adding that “[i]n ABC DLBCL models treated with the PI3Ka/PI3Kd inhibitor AZD8835, activated CARD11 mutations were identified as a mechanism of resistance.”

Investigations looking at various treatment combinations to overcome resistance to PI3K inhibition and improve the efficacy of targeted approaches are under way, they said.

For example, copanlisib plus the BCL-2 inhibitor venetoclax showed “synergistic activity in BCR-dependent DLBCLs, with genetic bases for BCL-2 dysregulation in vitro and in vivo,” and combination treatment with umbralisib and the proteasome inhibitor carfilzomib showed synergistic cytotoxicity in B-cell lymphoma, they said, noting that the latter combination is currently being evaluated in patients with DLBCL.

This work was supported by a research grant from the Deutsche Krebshilfe. Dr. Xu reported having no financial disclosures.

[email protected]

Targeted agents for the treatment of diffuse large B-cell lymphoma (DLBCL) should be used in the context of oncogenic addictions within the lymphoma cells, and a thorough molecular analysis should be conducted prior to using specific agents, a review of the relevant literature suggests.

“In addition ... single-agent regimens are most likely not efficient enough to substantially improve the outcome of patients with DLBCL,” Wendan Xu and colleagues at University Hospital Munster, Germany, concluded, based on their review.

Indeed, novel combinations that include B-cell receptor (BCR) signaling and phosphatidylinositol 3-kinase (PI3K) inhibitors are needed for DLBCL treatment, and treatment should also include conventional chemoimmunotherapeutic regimens as well as other targeted agents and novel immunologic approaches, they wrote. Such novel combinations could overcome mechanisms of resistance and increase cure rates in individuals with DLBCL, they contended.

The authors’ observations are based on a search of the available data, from which they summarized the “current understanding of BCR signaling with a special focus on the PI3K pathway and its role in the pathogenesis of DLBCL.”

The addition of the anti-CD20 antibody rituximab to the CHOP regimen (cyclophosphamide, doxorubicin, vincristine, and prednisone) significantly improved outcomes for patients with DLBCL, but about a third of patients are not cured by the rituximab-CHOP (R-CHOP) regimen and subsequent therapies, they said, explaining their rationale for the review.

“A better understanding of the molecular pathogenesis is warranted to use novel targeted agents in an optimal manner,” they said.

The authors also addressed clinical implications of the findings, and mechanisms of resistance to PI3k inhibitors. For example, they noted that:

–Bruton’s tyrosine kinase (BTK) inhibitors may be beneficial when added to R-CHOP.

In the randomized phase 3 PHOENIX trial, ibrutinib plus R-CHOP versus R-CHOP alone in patients with non–germinal center B-cell (non-GCB) DLBCL showed a survival benefit in patients over 60 years of age, which suggests a possible role for “an intensified R-CHOP regimen that includes a BTK inhibitor” in these patients, they said. They added that confirmatory trials are under way, including the ESCALADE trial looking at the second-generation BTK inhibitor acalabrutinib combined with R-CHOP versus R-CHOP alone in patients with untreated DLBCL.

–Results have been mixed with PI3K inhibitors.

Various PI3K inhibitors have been evaluated for the treatment of patients with DLBCL.

Idelalisib, a first-in-class PI3K-specific inhibitor approved for treatment of relapsed/refractory (r/r) follicular lymphoma, small lymphocytic lymphoma, and chronic lymphocytic leukemia (CLL), showed only modest activity in preclinical DLBCL models, and no responses were detectable in a small trial of patients with r/r DLBCL, the authors said. “Severe toxic side effects and treatment-related deaths occurred in several clinical trials that tested idelalisib in combination with antibodies alone or with antibodies and chemotherapy, leading to the premature discontinuation of some of these studies,” they noted.

Other studies investigating idelalisib plus lenalidomide and rituximab or the spleen tyrosine kinase (SYK) inhibitor entospletinib in patients with r/r CLL or lymphoma were also halted because of “overwhelming, immune-mediated pulmonary and/or hepatic toxicities.”

Copanlisib, an intravenous pan-class I PI3K inhibitor with preferential inhibition of PI3Ka and PI3Kd, showed some promise as monotherapy in a phase 2 trial of patients with r/r DLBCL. The overall response rate was about 20%, and response was “numerically higher” in activated B-cell like (ABC) DLBCL, compared with GCB DLBCL (32% vs. 13%), confirming preclinical data that showed PI3Ka/d inhibition effectiveness mainly in ABC DLBCL.

“Compared with idelalisib, copanlisib appears to have a more favorable toxicity profile, with a lower incidence of severe complications,” they said, adding that a phase 2 trial of copanlisib plus R-CHOP as first-line therapy for patients with DLBCL is under way.

Further, monotherapy with buparlisib, a pan-class I PI3K inhibitor, was associated with a low response rate of 11.5% in a DLBCL subcohort in a phase 2 study, whereas parsaclisib, a next-generation inhibitor with specificity to the PI3Kd isoform, showed efficacy as a monotherapy in patients with r/r DLBCL in a phase 2 study (overall response rate, 25.5%), they said, adding that other PI3K inhibitors with additional inhibitory effects are under clinical development.

–Various molecular mechanisms of resistance to PI3K inhibitors have been described preclinically and clinically.

In an unbiased exploratory analysis of samples from patients treated with copanlisib, a 16-gene mutation signature that separated responders from nonresponders was identified, the authors said.

The finding suggests that genetic aberrations dictate response to PI3K inhibitors, they noted.

“This 16-gene signature included TNFAIP3, CREBBP, and PRDM1, which are known to be important in the molecular pathogenesis of DLBCL,” they wrote. A composite score was developed to reflect the numerical presence or absence of mutations in the gene set, they explained, adding that patients with a high composite score had a significantly higher overall response rate and longer progression-free survival than did patients with a lower score.

In addition, idelalisib treatment resulted in a feedback activation of PI3Ka in ABC DLBCL cells.

“This rebound of PI3K activity was overcome by subsequent PI3Ka inhibition in preclinical DLBCL models, further underscoring the necessity of inhibiting both PI3Ka and PI3Kd to achieve responses in ABC DLBCL,” they wrote, adding that “[i]n ABC DLBCL models treated with the PI3Ka/PI3Kd inhibitor AZD8835, activated CARD11 mutations were identified as a mechanism of resistance.”

Investigations looking at various treatment combinations to overcome resistance to PI3K inhibition and improve the efficacy of targeted approaches are under way, they said.

For example, copanlisib plus the BCL-2 inhibitor venetoclax showed “synergistic activity in BCR-dependent DLBCLs, with genetic bases for BCL-2 dysregulation in vitro and in vivo,” and combination treatment with umbralisib and the proteasome inhibitor carfilzomib showed synergistic cytotoxicity in B-cell lymphoma, they said, noting that the latter combination is currently being evaluated in patients with DLBCL.

This work was supported by a research grant from the Deutsche Krebshilfe. Dr. Xu reported having no financial disclosures.

[email protected]