Key abstracts on multiple sclerosis treatment from the 2023 European Committee for Treatment and Research in Multiple Sclerosis–Americas Committee for Treatment and Research in Multiple Sclerosis (ECTRIMS-ACTRIMS) meeting are reported by Dr Ellen Mowry of Johns Hopkins University.

Dr Mowry begins with a convenient alternative method of drug administration in patients with multiple sclerosis (MS). The phase 3 OCARINA II randomized trial showed promising results in safety and efficacy of subcutaneous ocrelizumab vs traditional longer intravenous infusion. Ocrelizumab is pending US Food and Drug Administration approval.

Next, Dr Mowry highlights two studies that examined known increased risks associated with anti-CD20 therapies. Dr Mowry discusses the importance of continued research into monitoring immunoglobin levels to determine dose escalation or extended interval dosing in patients with MS.

She then discusses the NEXT MS trial that looked at personalized dosing of natalizumab. The interim data indicate a dosing schedule that aims to maintain blood levels of the drug above a certain threshold appears as effective in controlling disease activity in relapsing-remitting MS (RRMS) as the approved 4-week dosing schedule.

Finally, Dr Mowry discusses a phase 2 randomized trial of the gold nanoparticle CNM-Au8, which has been used to treat other autoimmune diseases, to determine its potential benefits in RRMS.

--

Ellen Mowry, MD, MCR, Professor of Neurology & Epidemiology, Johns Hopkins University, Baltimore, Maryland

Ellen Mowry, MD, MCR, has disclosed the following relevant financial relationships:

Serve(d) as a consultant for: BeCareLink, LLC

Received research grant from: Biogen; Genentech

Received royalties from: UpToDate

Key abstracts on multiple sclerosis treatment from the 2023 European Committee for Treatment and Research in Multiple Sclerosis–Americas Committee for Treatment and Research in Multiple Sclerosis (ECTRIMS-ACTRIMS) meeting are reported by Dr Ellen Mowry of Johns Hopkins University.

Dr Mowry begins with a convenient alternative method of drug administration in patients with multiple sclerosis (MS). The phase 3 OCARINA II randomized trial showed promising results in safety and efficacy of subcutaneous ocrelizumab vs traditional longer intravenous infusion. Ocrelizumab is pending US Food and Drug Administration approval.

Next, Dr Mowry highlights two studies that examined known increased risks associated with anti-CD20 therapies. Dr Mowry discusses the importance of continued research into monitoring immunoglobin levels to determine dose escalation or extended interval dosing in patients with MS.

She then discusses the NEXT MS trial that looked at personalized dosing of natalizumab. The interim data indicate a dosing schedule that aims to maintain blood levels of the drug above a certain threshold appears as effective in controlling disease activity in relapsing-remitting MS (RRMS) as the approved 4-week dosing schedule.

Finally, Dr Mowry discusses a phase 2 randomized trial of the gold nanoparticle CNM-Au8, which has been used to treat other autoimmune diseases, to determine its potential benefits in RRMS.

--

Ellen Mowry, MD, MCR, Professor of Neurology & Epidemiology, Johns Hopkins University, Baltimore, Maryland

Ellen Mowry, MD, MCR, has disclosed the following relevant financial relationships:

Serve(d) as a consultant for: BeCareLink, LLC

Received research grant from: Biogen; Genentech

Received royalties from: UpToDate

Key abstracts on multiple sclerosis treatment from the 2023 European Committee for Treatment and Research in Multiple Sclerosis–Americas Committee for Treatment and Research in Multiple Sclerosis (ECTRIMS-ACTRIMS) meeting are reported by Dr Ellen Mowry of Johns Hopkins University.

Dr Mowry begins with a convenient alternative method of drug administration in patients with multiple sclerosis (MS). The phase 3 OCARINA II randomized trial showed promising results in safety and efficacy of subcutaneous ocrelizumab vs traditional longer intravenous infusion. Ocrelizumab is pending US Food and Drug Administration approval.

Next, Dr Mowry highlights two studies that examined known increased risks associated with anti-CD20 therapies. Dr Mowry discusses the importance of continued research into monitoring immunoglobin levels to determine dose escalation or extended interval dosing in patients with MS.

She then discusses the NEXT MS trial that looked at personalized dosing of natalizumab. The interim data indicate a dosing schedule that aims to maintain blood levels of the drug above a certain threshold appears as effective in controlling disease activity in relapsing-remitting MS (RRMS) as the approved 4-week dosing schedule.

Finally, Dr Mowry discusses a phase 2 randomized trial of the gold nanoparticle CNM-Au8, which has been used to treat other autoimmune diseases, to determine its potential benefits in RRMS.

--

Ellen Mowry, MD, MCR, Professor of Neurology & Epidemiology, Johns Hopkins University, Baltimore, Maryland

Ellen Mowry, MD, MCR, has disclosed the following relevant financial relationships:

Serve(d) as a consultant for: BeCareLink, LLC

Received research grant from: Biogen; Genentech

Received royalties from: UpToDate

TOPLINE:

Treatment with two naturally occurring psychedelics was associated with reduced depressive and anxiety symptoms in trauma-exposed U.S. Special Operations Forces Veterans (SOFVs), according to a new study. Perhaps most surprising to investigators, however, was that treatment was also associated with improved cognitive scores in the veterans, many of whom had traumatic brain injuries.

METHODOLOGY:

• Investigators reviewed clinical charts of 86 SOFVs who received psychedelic-assisted treatment at a therapeutic program in Mexico, 86% of whom sustained head injuries during deployment.
• On the first day of the study, participants received a single oral dose (10 mg/kg) of ibogaine hydrochloride in a group setting with two to five other attendees and spent the next day reflecting on their experience with program staff.
• On the third day, participants inhaled 5-MeO-DMT in three incremental doses for a total of 50 mg and were then invited to reflect on their experience both individually and with the group of peers who shared the experience.
• Follow-up surveys at 1, 3, and 6 months posttreatment between September 2019 to March 2021 measured symptoms of posttraumatic stress disorder, cognitive functioning, generalized anxiety disorder, depression, and quality of life.

TAKEAWAY:

• There were significant improvements in self-reported PTSD symptoms, depression, anxiety, insomnia severity, anger, and a large improvement in self-reported satisfaction with life (P < .001 for all).
• Participants reported significant increases in psychological flexibility (P < .001), cognitive functioning (P < .001), and postconcussive symptoms (P < .001).
• Treatment was also associated with a significant reduction in suicidal ideation from pretreatment to 1-month follow-up (P < .01).

IN PRACTICE:

“If consistently replicated, this could have major implications for the landscape of mental health care if people are able to experience significant and sustained healing with 3 days of intensive treatment, relative to our traditionally available interventions that require 8-12 weeks of weekly therapy (for example, gold standard talk therapies such as [prolonged exposure] or [cognitive processing therapy]), or daily use of a pharmacotherapy such as [a selective serotonin reuptake inhibitor] for months to years,” study authors write.

SOURCE:

Alan Kooi Davis, PhD, of the Center for Psychedelic Drug Research and Education at Ohio State University, led the study, which was published online  in the American Journal of Drug and Alcohol Abuse.

LIMITATIONS:

Study assessments are based solely on self-report measures. Future research should implement carefully designed batteries that include both self-report and gold-standard clinician-administered measures to better capture symptom improvement and other information. The sample also lacked diversity with regard to race, religion, and socioeconomic status.

DISCLOSURES:

The study was funded by Veterans Exploring Treatment Solutions. Dr. Davis is a board member at Source Resource Foundation and a lead trainer at Fluence. Full disclosures are included in the original article.

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

TOPLINE:

Treatment with two naturally occurring psychedelics was associated with reduced depressive and anxiety symptoms in trauma-exposed U.S. Special Operations Forces Veterans (SOFVs), according to a new study. Perhaps most surprising to investigators, however, was that treatment was also associated with improved cognitive scores in the veterans, many of whom had traumatic brain injuries.

METHODOLOGY:

• Investigators reviewed clinical charts of 86 SOFVs who received psychedelic-assisted treatment at a therapeutic program in Mexico, 86% of whom sustained head injuries during deployment.
• On the first day of the study, participants received a single oral dose (10 mg/kg) of ibogaine hydrochloride in a group setting with two to five other attendees and spent the next day reflecting on their experience with program staff.
• On the third day, participants inhaled 5-MeO-DMT in three incremental doses for a total of 50 mg and were then invited to reflect on their experience both individually and with the group of peers who shared the experience.
• Follow-up surveys at 1, 3, and 6 months posttreatment between September 2019 to March 2021 measured symptoms of posttraumatic stress disorder, cognitive functioning, generalized anxiety disorder, depression, and quality of life.

TAKEAWAY:

• There were significant improvements in self-reported PTSD symptoms, depression, anxiety, insomnia severity, anger, and a large improvement in self-reported satisfaction with life (P < .001 for all).
• Participants reported significant increases in psychological flexibility (P < .001), cognitive functioning (P < .001), and postconcussive symptoms (P < .001).
• Treatment was also associated with a significant reduction in suicidal ideation from pretreatment to 1-month follow-up (P < .01).

IN PRACTICE:

“If consistently replicated, this could have major implications for the landscape of mental health care if people are able to experience significant and sustained healing with 3 days of intensive treatment, relative to our traditionally available interventions that require 8-12 weeks of weekly therapy (for example, gold standard talk therapies such as [prolonged exposure] or [cognitive processing therapy]), or daily use of a pharmacotherapy such as [a selective serotonin reuptake inhibitor] for months to years,” study authors write.

SOURCE:

Alan Kooi Davis, PhD, of the Center for Psychedelic Drug Research and Education at Ohio State University, led the study, which was published online  in the American Journal of Drug and Alcohol Abuse.

LIMITATIONS:

Study assessments are based solely on self-report measures. Future research should implement carefully designed batteries that include both self-report and gold-standard clinician-administered measures to better capture symptom improvement and other information. The sample also lacked diversity with regard to race, religion, and socioeconomic status.

DISCLOSURES:

The study was funded by Veterans Exploring Treatment Solutions. Dr. Davis is a board member at Source Resource Foundation and a lead trainer at Fluence. Full disclosures are included in the original article.

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

TOPLINE:

Treatment with two naturally occurring psychedelics was associated with reduced depressive and anxiety symptoms in trauma-exposed U.S. Special Operations Forces Veterans (SOFVs), according to a new study. Perhaps most surprising to investigators, however, was that treatment was also associated with improved cognitive scores in the veterans, many of whom had traumatic brain injuries.

METHODOLOGY:

• Investigators reviewed clinical charts of 86 SOFVs who received psychedelic-assisted treatment at a therapeutic program in Mexico, 86% of whom sustained head injuries during deployment.
• On the first day of the study, participants received a single oral dose (10 mg/kg) of ibogaine hydrochloride in a group setting with two to five other attendees and spent the next day reflecting on their experience with program staff.
• On the third day, participants inhaled 5-MeO-DMT in three incremental doses for a total of 50 mg and were then invited to reflect on their experience both individually and with the group of peers who shared the experience.
• Follow-up surveys at 1, 3, and 6 months posttreatment between September 2019 to March 2021 measured symptoms of posttraumatic stress disorder, cognitive functioning, generalized anxiety disorder, depression, and quality of life.

TAKEAWAY:

• There were significant improvements in self-reported PTSD symptoms, depression, anxiety, insomnia severity, anger, and a large improvement in self-reported satisfaction with life (P < .001 for all).
• Participants reported significant increases in psychological flexibility (P < .001), cognitive functioning (P < .001), and postconcussive symptoms (P < .001).
• Treatment was also associated with a significant reduction in suicidal ideation from pretreatment to 1-month follow-up (P < .01).

IN PRACTICE:

“If consistently replicated, this could have major implications for the landscape of mental health care if people are able to experience significant and sustained healing with 3 days of intensive treatment, relative to our traditionally available interventions that require 8-12 weeks of weekly therapy (for example, gold standard talk therapies such as [prolonged exposure] or [cognitive processing therapy]), or daily use of a pharmacotherapy such as [a selective serotonin reuptake inhibitor] for months to years,” study authors write.

SOURCE:

Alan Kooi Davis, PhD, of the Center for Psychedelic Drug Research and Education at Ohio State University, led the study, which was published online  in the American Journal of Drug and Alcohol Abuse.

LIMITATIONS:

Study assessments are based solely on self-report measures. Future research should implement carefully designed batteries that include both self-report and gold-standard clinician-administered measures to better capture symptom improvement and other information. The sample also lacked diversity with regard to race, religion, and socioeconomic status.

DISCLOSURES:

The study was funded by Veterans Exploring Treatment Solutions. Dr. Davis is a board member at Source Resource Foundation and a lead trainer at Fluence. Full disclosures are included in the original article.

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

TOPLINE:

New research suggests that long-term exposure to air pollution during and after pregnancy increases the risk of postpartum depression (PPD), adding to prior research linking air pollution to mental health issues.

METHODOLOGY:

• Researchers analyzed data on 340,679 women who had singleton live births at Kaiser Permanente Southern California facilities between 2008 and 2016.
• Ambient air pollution exposures were assessed based on maternal residential addresses using monthly averages of particulate matter ≤ 2.5 mcm (PM_2.5), PM ≤ 10 mcm (PM₁₀), nitrogen dioxide, and ozone from Environmental Protection Agency monitoring stations.
• Constituents of PM_2.5 (sulfate, nitrate, ammonium, organic matter, and black carbon) were obtained from models based on satellite, ground-based monitor, and chemical transport modeling data.
• Women with an Edinburgh Postnatal Depression Scale score of at least 10 during the first 6 months postpartum were referred for further assessment, including diagnosis and treatment.

TAKEAWAY:

• A total of 25,674 women had PPD (7.5%).
• Positive associations were observed between PPD ozone (adjusted odds ratio, 1.09), PM₁₀ (aOR, 1.02), and PM_2.5 (aOR, 1.02), with no statistically significant association with nitrogen dioxide.
• Among PM_2.5 constituents, black carbon had the strongest association with PPD (OR 1.04).
• Overall, a higher risk of PPD was associated with ozone exposure during the entire pregnancy and postpartum periods and with PM exposure during the late pregnancy and postpartum periods.

IN PRACTICE:

“These findings suggest that long-term antepartum and postpartum air pollution exposure is a potentially modifiable environmental risk factor for PPD and an important public health issue to address for improved maternal mental health,” the authors wrote.

SOURCE:

The study, with first author Yi Sun, PhD, Chinese Academy of Medical Sciences and Peking Medical College, Beijing, was published online in JAMA Network Open.

LIMITATIONS:

Postpartum exposures were estimated using only maternal address at delivery, which may have led to exposure misclassification. Potential exposure misclassifications may also exist since indoor and personal exposure levels could not be estimated. Although several covariates were adjusted for, some residual or unmeasured covariates were inevitable due to data unavailability, such as psychiatric history, adverse life events, and marital status, which may affect mental health.

DISCLOSURES:

This study was supported by a grant from the National Institute of Environmental Health Sciences. The authors report no relevant financial relationships.

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

TOPLINE:

New research suggests that long-term exposure to air pollution during and after pregnancy increases the risk of postpartum depression (PPD), adding to prior research linking air pollution to mental health issues.

METHODOLOGY:

• Researchers analyzed data on 340,679 women who had singleton live births at Kaiser Permanente Southern California facilities between 2008 and 2016.
• Ambient air pollution exposures were assessed based on maternal residential addresses using monthly averages of particulate matter ≤ 2.5 mcm (PM_2.5), PM ≤ 10 mcm (PM₁₀), nitrogen dioxide, and ozone from Environmental Protection Agency monitoring stations.
• Constituents of PM_2.5 (sulfate, nitrate, ammonium, organic matter, and black carbon) were obtained from models based on satellite, ground-based monitor, and chemical transport modeling data.
• Women with an Edinburgh Postnatal Depression Scale score of at least 10 during the first 6 months postpartum were referred for further assessment, including diagnosis and treatment.

TAKEAWAY:

• A total of 25,674 women had PPD (7.5%).
• Positive associations were observed between PPD ozone (adjusted odds ratio, 1.09), PM₁₀ (aOR, 1.02), and PM_2.5 (aOR, 1.02), with no statistically significant association with nitrogen dioxide.
• Among PM_2.5 constituents, black carbon had the strongest association with PPD (OR 1.04).
• Overall, a higher risk of PPD was associated with ozone exposure during the entire pregnancy and postpartum periods and with PM exposure during the late pregnancy and postpartum periods.

IN PRACTICE:

“These findings suggest that long-term antepartum and postpartum air pollution exposure is a potentially modifiable environmental risk factor for PPD and an important public health issue to address for improved maternal mental health,” the authors wrote.

SOURCE:

The study, with first author Yi Sun, PhD, Chinese Academy of Medical Sciences and Peking Medical College, Beijing, was published online in JAMA Network Open.

LIMITATIONS:

Postpartum exposures were estimated using only maternal address at delivery, which may have led to exposure misclassification. Potential exposure misclassifications may also exist since indoor and personal exposure levels could not be estimated. Although several covariates were adjusted for, some residual or unmeasured covariates were inevitable due to data unavailability, such as psychiatric history, adverse life events, and marital status, which may affect mental health.

DISCLOSURES:

This study was supported by a grant from the National Institute of Environmental Health Sciences. The authors report no relevant financial relationships.

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

TOPLINE:

New research suggests that long-term exposure to air pollution during and after pregnancy increases the risk of postpartum depression (PPD), adding to prior research linking air pollution to mental health issues.

METHODOLOGY:

• Researchers analyzed data on 340,679 women who had singleton live births at Kaiser Permanente Southern California facilities between 2008 and 2016.
• Ambient air pollution exposures were assessed based on maternal residential addresses using monthly averages of particulate matter ≤ 2.5 mcm (PM_2.5), PM ≤ 10 mcm (PM₁₀), nitrogen dioxide, and ozone from Environmental Protection Agency monitoring stations.
• Constituents of PM_2.5 (sulfate, nitrate, ammonium, organic matter, and black carbon) were obtained from models based on satellite, ground-based monitor, and chemical transport modeling data.
• Women with an Edinburgh Postnatal Depression Scale score of at least 10 during the first 6 months postpartum were referred for further assessment, including diagnosis and treatment.

TAKEAWAY:

• A total of 25,674 women had PPD (7.5%).
• Positive associations were observed between PPD ozone (adjusted odds ratio, 1.09), PM₁₀ (aOR, 1.02), and PM_2.5 (aOR, 1.02), with no statistically significant association with nitrogen dioxide.
• Among PM_2.5 constituents, black carbon had the strongest association with PPD (OR 1.04).
• Overall, a higher risk of PPD was associated with ozone exposure during the entire pregnancy and postpartum periods and with PM exposure during the late pregnancy and postpartum periods.

IN PRACTICE:

“These findings suggest that long-term antepartum and postpartum air pollution exposure is a potentially modifiable environmental risk factor for PPD and an important public health issue to address for improved maternal mental health,” the authors wrote.

SOURCE:

The study, with first author Yi Sun, PhD, Chinese Academy of Medical Sciences and Peking Medical College, Beijing, was published online in JAMA Network Open.

LIMITATIONS:

Postpartum exposures were estimated using only maternal address at delivery, which may have led to exposure misclassification. Potential exposure misclassifications may also exist since indoor and personal exposure levels could not be estimated. Although several covariates were adjusted for, some residual or unmeasured covariates were inevitable due to data unavailability, such as psychiatric history, adverse life events, and marital status, which may affect mental health.

DISCLOSURES:

This study was supported by a grant from the National Institute of Environmental Health Sciences. The authors report no relevant financial relationships.

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

The anti-inflammatory agent colchicine, started within 24 hours of acute ischemic stroke or a transient ischemic attack (TIA), was not associated with a reduction in subsequent strokes or other vascular events at 90 days in the CHANCE-3 trial.

The results were presented by Yongjun Wang, MD, Beijing Tiantan Hospital, Capital Medical University, at the annual World Stroke Congress, sponsored by the World Stroke Organization.

Dr. Wang noted that inflammation may be a key factor involved in the residual risk for recurrent stroke, with data from previous CHANCE trials suggesting a higher stroke recurrence rate in patients with higher levels of high-sensitivity C-reactive protein (hsCRP), a key marker of inflammation.

Low-dose colchicine, which acts as an anti-inflammatory agent, has recently been approved in many countries for patients with established atherosclerotic disease or multiple risk factors for cardiovascular disease to reduce the risk for future cardiovascular events. This follows benefits seen in those populations in the LoDoCo-2 and COLCOT trials.

The CHANCE-3 study was conducted to evaluate whether similar benefits could be found in patients with acute ischemic stroke.

The trial involved 8,369 Chinese patients with minor to moderate ischemic stroke (National Institutes of Health Stroke Scale score ≤ 5) or high-risk TIA (ABCD2 score ≥ 4) who had an hsCRP level of at least 2 mg/L.

Patients were assigned within 24 hours after symptom onset, in a 1:1 ratio, to receive colchicine (1 mg daily on days 1-3, followed by 0.5 mg daily for a total of 90 days) or placebo, on a background of optimal medical therapy.

The primary outcome was any stroke within 90 days. The key secondary outcomes included a composite of stroke, TIA, myocardial infarction, and vascular death within 90 days, and Modified Rankin Scale score greater than 1 at 90 days.

Results showed that the primary outcome of any stroke at 90 days occurred in 6.3% of the colchicine group versus 6.5% of the placebo group, a nonsignificant difference (P = .79).

All secondary outcomes were also neutral, with no differences between the two groups.

Addressing the different results in CHANCE-3, compared with those of the cardiovascular trials of colchicine, Dr. Wang pointed out that the cardiovascular trials had a much longer treatment and follow-up time (an average of 22 months), compared with just 3 months in CHANCE-3.

“Clinical trials with longer treatment times are needed to further assess the effects of colchicine after cerebrovascular events, but it may be that ischemic cerebrovascular disease and ischemic heart disease respond differently to colchicine treatment,” he concluded.

Commenting on the study, cochair of the WSC session at which it was presented, Ashkan Shoamanesh, MD, associate professor of medicine at McMaster University, Hamilton, Ont., said CHANCE-3 was a well-designed large phase 3 randomized trial and the first such trial to test colchicine for secondary stroke prevention. 

He agreed with Dr. Wang that the follow-up duration for this initial analysis of 3-month outcomes may have been too short to see an effect.

“So, we require randomized trials with longer follow-up prior to abandoning this potential treatment,” he added. 

Dr. Shoamanesh noted that several additional trials are currently ongoing testing colchicine for secondary prevention in patients with stroke. These include the CONVINCE, CASPER, CoVasc-ICH, and RIISC-THETIS trials.

He also pointed out that, in contrast to ischemic heart disease, which results from atherosclerosis, the mechanisms underlying ischemic stroke are more heterogeneous and include various vascular and cardioembolic pathologies.

The CHANCE-3 study was funded by grants from the National Natural Science Foundation of China, the Ministry of Science and Technology of China, the Chinese Academy of Medical Sciences, and the Beijing Municipal Health Commission.

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

The anti-inflammatory agent colchicine, started within 24 hours of acute ischemic stroke or a transient ischemic attack (TIA), was not associated with a reduction in subsequent strokes or other vascular events at 90 days in the CHANCE-3 trial.

The results were presented by Yongjun Wang, MD, Beijing Tiantan Hospital, Capital Medical University, at the annual World Stroke Congress, sponsored by the World Stroke Organization.

Dr. Wang noted that inflammation may be a key factor involved in the residual risk for recurrent stroke, with data from previous CHANCE trials suggesting a higher stroke recurrence rate in patients with higher levels of high-sensitivity C-reactive protein (hsCRP), a key marker of inflammation.

Low-dose colchicine, which acts as an anti-inflammatory agent, has recently been approved in many countries for patients with established atherosclerotic disease or multiple risk factors for cardiovascular disease to reduce the risk for future cardiovascular events. This follows benefits seen in those populations in the LoDoCo-2 and COLCOT trials.

The CHANCE-3 study was conducted to evaluate whether similar benefits could be found in patients with acute ischemic stroke.

The trial involved 8,369 Chinese patients with minor to moderate ischemic stroke (National Institutes of Health Stroke Scale score ≤ 5) or high-risk TIA (ABCD2 score ≥ 4) who had an hsCRP level of at least 2 mg/L.

Patients were assigned within 24 hours after symptom onset, in a 1:1 ratio, to receive colchicine (1 mg daily on days 1-3, followed by 0.5 mg daily for a total of 90 days) or placebo, on a background of optimal medical therapy.

The primary outcome was any stroke within 90 days. The key secondary outcomes included a composite of stroke, TIA, myocardial infarction, and vascular death within 90 days, and Modified Rankin Scale score greater than 1 at 90 days.

Results showed that the primary outcome of any stroke at 90 days occurred in 6.3% of the colchicine group versus 6.5% of the placebo group, a nonsignificant difference (P = .79).

All secondary outcomes were also neutral, with no differences between the two groups.

Addressing the different results in CHANCE-3, compared with those of the cardiovascular trials of colchicine, Dr. Wang pointed out that the cardiovascular trials had a much longer treatment and follow-up time (an average of 22 months), compared with just 3 months in CHANCE-3.

“Clinical trials with longer treatment times are needed to further assess the effects of colchicine after cerebrovascular events, but it may be that ischemic cerebrovascular disease and ischemic heart disease respond differently to colchicine treatment,” he concluded.

Commenting on the study, cochair of the WSC session at which it was presented, Ashkan Shoamanesh, MD, associate professor of medicine at McMaster University, Hamilton, Ont., said CHANCE-3 was a well-designed large phase 3 randomized trial and the first such trial to test colchicine for secondary stroke prevention. 

He agreed with Dr. Wang that the follow-up duration for this initial analysis of 3-month outcomes may have been too short to see an effect.

“So, we require randomized trials with longer follow-up prior to abandoning this potential treatment,” he added. 

Dr. Shoamanesh noted that several additional trials are currently ongoing testing colchicine for secondary prevention in patients with stroke. These include the CONVINCE, CASPER, CoVasc-ICH, and RIISC-THETIS trials.

He also pointed out that, in contrast to ischemic heart disease, which results from atherosclerosis, the mechanisms underlying ischemic stroke are more heterogeneous and include various vascular and cardioembolic pathologies.

The CHANCE-3 study was funded by grants from the National Natural Science Foundation of China, the Ministry of Science and Technology of China, the Chinese Academy of Medical Sciences, and the Beijing Municipal Health Commission.

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

The anti-inflammatory agent colchicine, started within 24 hours of acute ischemic stroke or a transient ischemic attack (TIA), was not associated with a reduction in subsequent strokes or other vascular events at 90 days in the CHANCE-3 trial.

The results were presented by Yongjun Wang, MD, Beijing Tiantan Hospital, Capital Medical University, at the annual World Stroke Congress, sponsored by the World Stroke Organization.

Dr. Wang noted that inflammation may be a key factor involved in the residual risk for recurrent stroke, with data from previous CHANCE trials suggesting a higher stroke recurrence rate in patients with higher levels of high-sensitivity C-reactive protein (hsCRP), a key marker of inflammation.

Low-dose colchicine, which acts as an anti-inflammatory agent, has recently been approved in many countries for patients with established atherosclerotic disease or multiple risk factors for cardiovascular disease to reduce the risk for future cardiovascular events. This follows benefits seen in those populations in the LoDoCo-2 and COLCOT trials.

The CHANCE-3 study was conducted to evaluate whether similar benefits could be found in patients with acute ischemic stroke.

The trial involved 8,369 Chinese patients with minor to moderate ischemic stroke (National Institutes of Health Stroke Scale score ≤ 5) or high-risk TIA (ABCD2 score ≥ 4) who had an hsCRP level of at least 2 mg/L.

Patients were assigned within 24 hours after symptom onset, in a 1:1 ratio, to receive colchicine (1 mg daily on days 1-3, followed by 0.5 mg daily for a total of 90 days) or placebo, on a background of optimal medical therapy.

The primary outcome was any stroke within 90 days. The key secondary outcomes included a composite of stroke, TIA, myocardial infarction, and vascular death within 90 days, and Modified Rankin Scale score greater than 1 at 90 days.

Results showed that the primary outcome of any stroke at 90 days occurred in 6.3% of the colchicine group versus 6.5% of the placebo group, a nonsignificant difference (P = .79).

All secondary outcomes were also neutral, with no differences between the two groups.

Addressing the different results in CHANCE-3, compared with those of the cardiovascular trials of colchicine, Dr. Wang pointed out that the cardiovascular trials had a much longer treatment and follow-up time (an average of 22 months), compared with just 3 months in CHANCE-3.

“Clinical trials with longer treatment times are needed to further assess the effects of colchicine after cerebrovascular events, but it may be that ischemic cerebrovascular disease and ischemic heart disease respond differently to colchicine treatment,” he concluded.

Commenting on the study, cochair of the WSC session at which it was presented, Ashkan Shoamanesh, MD, associate professor of medicine at McMaster University, Hamilton, Ont., said CHANCE-3 was a well-designed large phase 3 randomized trial and the first such trial to test colchicine for secondary stroke prevention. 

He agreed with Dr. Wang that the follow-up duration for this initial analysis of 3-month outcomes may have been too short to see an effect.

“So, we require randomized trials with longer follow-up prior to abandoning this potential treatment,” he added. 

Dr. Shoamanesh noted that several additional trials are currently ongoing testing colchicine for secondary prevention in patients with stroke. These include the CONVINCE, CASPER, CoVasc-ICH, and RIISC-THETIS trials.

He also pointed out that, in contrast to ischemic heart disease, which results from atherosclerosis, the mechanisms underlying ischemic stroke are more heterogeneous and include various vascular and cardioembolic pathologies.

The CHANCE-3 study was funded by grants from the National Natural Science Foundation of China, the Ministry of Science and Technology of China, the Chinese Academy of Medical Sciences, and the Beijing Municipal Health Commission.

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

CARLSBAD, CALIF. – In the opinion of Swati Kannan, MD, deciding whether or not to establish a presence on social media starts with a gut-check about your intentions.

“Why use it?” Dr. Kannan, a dermatologist and Mohs surgeon at the University of California, San Diego, asked attendees at the annual symposium of the California Society of Dermatology & Dermatologic Surgery. “Isn’t being an MD or DO enough? Not anymore. Social media allows you to reach a much larger audience. You’re able to market yourself and market dermatology. It establishes us as the authority in dermatology [topics], showcases our expertise and knowledge, and differentiates us from other nondermatology providers.”

Dr. Swati Kannan

Her favorite part about using Instagram and other social media platforms, she said, is connecting with other dermatologists and other specialists. “I’ve learned a lot from communicating with other dermatologists on different platforms, not just for social media but for changing how I practice as well.”

Dr. Kannan offered the following tips and considerations for building and maintaining a presence on social media:

Know the demographics of your practice and your target audience. In general, individuals in their 20s have a presence on many platforms, mainly TikTok for entertainment. Those in their 30s and 40s mainly use Facebook, Instagram, and YouTube, and those in their 40s-60s primarily use Facebook and YouTube. “Men tend to use YouTube, Twitter (X), Reddit, and LinkedIn, while women prefer more photo or video content platforms like Instagram, TikTok, and Facebook,” she said. In addition, knowing your target audience will help select which social media platforms to be active on.

Think about your goal. Is it a side hustle? Is it to raise awareness of various dermatologic conditions? Is it to grow your business? “Knowing this goal will help you determine how much time you’re going to commit to it.”

Do you have the time? To be effective, being active on social media can take 10-15 hours a week, especially for beginners, “so it’s like another job,” she said.

Devise a social media strategy. “Ideally, pick one to three social media platforms that you are going to be active on,” Dr. Kannan advised. “I’m active on Instagram and YouTube, and I cross-post on TikTok and Facebook. That means when I’m making content, it’s geared toward the audience on Instagram. If it hits a few people on TikTok, that’s fine, too, but the TikTok audience is not my target.”

Stick to a posting schedule. Ideally, post three to five times per week.

Create a content strategy. This includes a variety of photos, diagrams, videos, “and you want to use relevant hashtags,” she said.

Find your niche and style. This comes with time. If you specialize in a specific dermatologic condition such as psoriasis, hair loss, or vitiligo, emphasize that in your content.

Find your voice. This also comes with time. But be a professional version of yourself.

Have a plan for how to handle complaints or bad comments. “Avoid posting content that would make you a target,” she advised. “When I get a rude comment, I delete it. If the comment is racist or sexist, I will report it.”

Learn how to review the stats on your accounts. This will provide information on which posts or videos are being well received, which can serve as the basis of creating content that’s similar going forward.

Follow certain social media strategists. This can help grow followers and learn how to find trending audio or music to accompany your content. On Instagram, for example, Dr. Kannan follows @creators and @instagramforbusiness. On YouTube, she follows the Think Media channel.

Avoid posting content that would make you a target. Limit photos about partying/alcohol consumption or anything considered unprofessional. “If you can’t say it or do it in front of a patient, then you shouldn’t post it on your professional social media page,” she said.

Protect yourself. Don’t provide individual medical advice. “All of my home pages contain the statement, ‘this page is not for medical advice,’” Dr. Kannan said. “Get photo and video consent from all patients, even if you’re posting a zoomed-in version of their face. Deidentify patients as much as possible, and watermark your before and after photos and videos so that they’re not easily used by others.”

Be consistent and patient as you engage on social media platforms. Being a good digital citizen includes networking with other creators by liking and commenting on their posts, and responding to and liking comments that people make to your posts. “Remember: it’s not just about the number of followers, but also about engagement,” she said.

Dr. Kannan reported having no relevant disclosures.

CARLSBAD, CALIF. – In the opinion of Swati Kannan, MD, deciding whether or not to establish a presence on social media starts with a gut-check about your intentions.

“Why use it?” Dr. Kannan, a dermatologist and Mohs surgeon at the University of California, San Diego, asked attendees at the annual symposium of the California Society of Dermatology & Dermatologic Surgery. “Isn’t being an MD or DO enough? Not anymore. Social media allows you to reach a much larger audience. You’re able to market yourself and market dermatology. It establishes us as the authority in dermatology [topics], showcases our expertise and knowledge, and differentiates us from other nondermatology providers.”

Dr. Swati Kannan

Her favorite part about using Instagram and other social media platforms, she said, is connecting with other dermatologists and other specialists. “I’ve learned a lot from communicating with other dermatologists on different platforms, not just for social media but for changing how I practice as well.”

Dr. Kannan offered the following tips and considerations for building and maintaining a presence on social media:

Know the demographics of your practice and your target audience. In general, individuals in their 20s have a presence on many platforms, mainly TikTok for entertainment. Those in their 30s and 40s mainly use Facebook, Instagram, and YouTube, and those in their 40s-60s primarily use Facebook and YouTube. “Men tend to use YouTube, Twitter (X), Reddit, and LinkedIn, while women prefer more photo or video content platforms like Instagram, TikTok, and Facebook,” she said. In addition, knowing your target audience will help select which social media platforms to be active on.

Think about your goal. Is it a side hustle? Is it to raise awareness of various dermatologic conditions? Is it to grow your business? “Knowing this goal will help you determine how much time you’re going to commit to it.”

Do you have the time? To be effective, being active on social media can take 10-15 hours a week, especially for beginners, “so it’s like another job,” she said.

Devise a social media strategy. “Ideally, pick one to three social media platforms that you are going to be active on,” Dr. Kannan advised. “I’m active on Instagram and YouTube, and I cross-post on TikTok and Facebook. That means when I’m making content, it’s geared toward the audience on Instagram. If it hits a few people on TikTok, that’s fine, too, but the TikTok audience is not my target.”

Stick to a posting schedule. Ideally, post three to five times per week.

Create a content strategy. This includes a variety of photos, diagrams, videos, “and you want to use relevant hashtags,” she said.

Find your niche and style. This comes with time. If you specialize in a specific dermatologic condition such as psoriasis, hair loss, or vitiligo, emphasize that in your content.

Find your voice. This also comes with time. But be a professional version of yourself.

Have a plan for how to handle complaints or bad comments. “Avoid posting content that would make you a target,” she advised. “When I get a rude comment, I delete it. If the comment is racist or sexist, I will report it.”

Learn how to review the stats on your accounts. This will provide information on which posts or videos are being well received, which can serve as the basis of creating content that’s similar going forward.

Follow certain social media strategists. This can help grow followers and learn how to find trending audio or music to accompany your content. On Instagram, for example, Dr. Kannan follows @creators and @instagramforbusiness. On YouTube, she follows the Think Media channel.

Avoid posting content that would make you a target. Limit photos about partying/alcohol consumption or anything considered unprofessional. “If you can’t say it or do it in front of a patient, then you shouldn’t post it on your professional social media page,” she said.

Protect yourself. Don’t provide individual medical advice. “All of my home pages contain the statement, ‘this page is not for medical advice,’” Dr. Kannan said. “Get photo and video consent from all patients, even if you’re posting a zoomed-in version of their face. Deidentify patients as much as possible, and watermark your before and after photos and videos so that they’re not easily used by others.”

Be consistent and patient as you engage on social media platforms. Being a good digital citizen includes networking with other creators by liking and commenting on their posts, and responding to and liking comments that people make to your posts. “Remember: it’s not just about the number of followers, but also about engagement,” she said.

Dr. Kannan reported having no relevant disclosures.

CARLSBAD, CALIF. – In the opinion of Swati Kannan, MD, deciding whether or not to establish a presence on social media starts with a gut-check about your intentions.

“Why use it?” Dr. Kannan, a dermatologist and Mohs surgeon at the University of California, San Diego, asked attendees at the annual symposium of the California Society of Dermatology & Dermatologic Surgery. “Isn’t being an MD or DO enough? Not anymore. Social media allows you to reach a much larger audience. You’re able to market yourself and market dermatology. It establishes us as the authority in dermatology [topics], showcases our expertise and knowledge, and differentiates us from other nondermatology providers.”

Dr. Swati Kannan

Her favorite part about using Instagram and other social media platforms, she said, is connecting with other dermatologists and other specialists. “I’ve learned a lot from communicating with other dermatologists on different platforms, not just for social media but for changing how I practice as well.”

Dr. Kannan offered the following tips and considerations for building and maintaining a presence on social media:

Know the demographics of your practice and your target audience. In general, individuals in their 20s have a presence on many platforms, mainly TikTok for entertainment. Those in their 30s and 40s mainly use Facebook, Instagram, and YouTube, and those in their 40s-60s primarily use Facebook and YouTube. “Men tend to use YouTube, Twitter (X), Reddit, and LinkedIn, while women prefer more photo or video content platforms like Instagram, TikTok, and Facebook,” she said. In addition, knowing your target audience will help select which social media platforms to be active on.

Think about your goal. Is it a side hustle? Is it to raise awareness of various dermatologic conditions? Is it to grow your business? “Knowing this goal will help you determine how much time you’re going to commit to it.”

Do you have the time? To be effective, being active on social media can take 10-15 hours a week, especially for beginners, “so it’s like another job,” she said.

Devise a social media strategy. “Ideally, pick one to three social media platforms that you are going to be active on,” Dr. Kannan advised. “I’m active on Instagram and YouTube, and I cross-post on TikTok and Facebook. That means when I’m making content, it’s geared toward the audience on Instagram. If it hits a few people on TikTok, that’s fine, too, but the TikTok audience is not my target.”

Stick to a posting schedule. Ideally, post three to five times per week.

Create a content strategy. This includes a variety of photos, diagrams, videos, “and you want to use relevant hashtags,” she said.

Find your niche and style. This comes with time. If you specialize in a specific dermatologic condition such as psoriasis, hair loss, or vitiligo, emphasize that in your content.

Find your voice. This also comes with time. But be a professional version of yourself.

Have a plan for how to handle complaints or bad comments. “Avoid posting content that would make you a target,” she advised. “When I get a rude comment, I delete it. If the comment is racist or sexist, I will report it.”

Learn how to review the stats on your accounts. This will provide information on which posts or videos are being well received, which can serve as the basis of creating content that’s similar going forward.

Follow certain social media strategists. This can help grow followers and learn how to find trending audio or music to accompany your content. On Instagram, for example, Dr. Kannan follows @creators and @instagramforbusiness. On YouTube, she follows the Think Media channel.

Avoid posting content that would make you a target. Limit photos about partying/alcohol consumption or anything considered unprofessional. “If you can’t say it or do it in front of a patient, then you shouldn’t post it on your professional social media page,” she said.

Protect yourself. Don’t provide individual medical advice. “All of my home pages contain the statement, ‘this page is not for medical advice,’” Dr. Kannan said. “Get photo and video consent from all patients, even if you’re posting a zoomed-in version of their face. Deidentify patients as much as possible, and watermark your before and after photos and videos so that they’re not easily used by others.”

Be consistent and patient as you engage on social media platforms. Being a good digital citizen includes networking with other creators by liking and commenting on their posts, and responding to and liking comments that people make to your posts. “Remember: it’s not just about the number of followers, but also about engagement,” she said.

Dr. Kannan reported having no relevant disclosures.

I, like every pediatrician I know, believe that breast milk is the best nutrition for human newborns. Its balance of nutritive elements and its role in preventing of a wide range of illnesses are so great that we are still learning the extent of their magnitude. It just makes sense that a mother’s milk is most well suited for her baby.

I am a bit less unambiguous about breastfeeding. By that I mean the process of providing breast milk to an infant directly from its mother’s breast. Before you yank my AAP membership card, let me make it clear that I think every woman should consider breastfeeding her infant. But we must accept that in a few situations, even with help from caring and enlightened health care providers and family members, breastfeeding doesn’t work as well as we would have hoped. Fortunately, there are alternatives.

My reservations about the process are few, and until recently I have had an unwaveringly positive attitude toward the safety of breast milk. The cause of my little bit of uncertainty arrived in a recent study by two researchers at the Dana Farber Institute in Boston, in which the investigators examining the health histories of more than 150,000 women found that those who were breastfed incurred a 23% greater risk of developing colorectal cancer when they reached adulthood. A younger cohort within that larger group had a dramatic 40% increased risk of developing high-risk cancer before reaching age 55.

The population the investigators studied came from the large Nurses’ Health Study II, a well-known repository of longitudinal health data. The researchers reported that they included biometric data and a large collection of lifestyle factors including smoking, alcohol intake, and diet in their calculations. However, breastfeeding continued to register the highest association. Interestingly, the investigators found that women who were breastfed for 9 months or longer had twice the risk of colorectal cancer as those who breastfed for from 4 to 8 months.

The study population was all women and predominantly white. However, in the general population it is the non-Hispanic white population that is experiencing the greatest increase in incidence. Of course, the study could not answer whether this association with breastfeeding also existed in minority populations.

The researchers suspect that what they are seeing is a reflection of the Westernization of the American lifestyle. One of the researchers is interested in the gut biome of infants and plans to further the investigation in that direction. Could some substance from the environment be concentrating in breast milk? Or is something missing in breast milk? She points out that, while formulas are generally fortified with vitamin D, breast milk is not.

As concerning as the results of this study may sound, the authors are very careful to urge mothers to continue to breastfeed and choose it as their first choice for feeding their babies. I have been pleasantly surprised that this study has not gotten widespread media attention because bad news travels fast. I have chosen to share it with you because at some point you may begin getting questions from concerned parents.

While apparently well done, this study is just the beginning. Like any good research, it poses more questions than it answers. For us as pediatricians it means we should continue to recommend breast milk as the first food. But, we must stay alert as further research looks deeper into this association.

We should also take advantage of our special access to young parents, a demographic that less frequently sees a physician for preventive care. For whatever reason colorectal cancer is occurring at younger ages. When we have the opportunity we should be reminding 40-year-olds not to wait until age 50 to screen for colorectal cancer, particularly if they have a family history of the disease.

Dr. Wilkoff practiced primary care pediatrics in Brunswick, Maine, for nearly 40 years. He has authored several books on behavioral pediatrics, including “How to Say No to Your Toddler.” Other than a Littman stethoscope he accepted as a first-year medical student in 1966, Dr. Wilkoff reports having nothing to disclose. Email him at [email protected].

I, like every pediatrician I know, believe that breast milk is the best nutrition for human newborns. Its balance of nutritive elements and its role in preventing of a wide range of illnesses are so great that we are still learning the extent of their magnitude. It just makes sense that a mother’s milk is most well suited for her baby.

I am a bit less unambiguous about breastfeeding. By that I mean the process of providing breast milk to an infant directly from its mother’s breast. Before you yank my AAP membership card, let me make it clear that I think every woman should consider breastfeeding her infant. But we must accept that in a few situations, even with help from caring and enlightened health care providers and family members, breastfeeding doesn’t work as well as we would have hoped. Fortunately, there are alternatives.

My reservations about the process are few, and until recently I have had an unwaveringly positive attitude toward the safety of breast milk. The cause of my little bit of uncertainty arrived in a recent study by two researchers at the Dana Farber Institute in Boston, in which the investigators examining the health histories of more than 150,000 women found that those who were breastfed incurred a 23% greater risk of developing colorectal cancer when they reached adulthood. A younger cohort within that larger group had a dramatic 40% increased risk of developing high-risk cancer before reaching age 55.

The population the investigators studied came from the large Nurses’ Health Study II, a well-known repository of longitudinal health data. The researchers reported that they included biometric data and a large collection of lifestyle factors including smoking, alcohol intake, and diet in their calculations. However, breastfeeding continued to register the highest association. Interestingly, the investigators found that women who were breastfed for 9 months or longer had twice the risk of colorectal cancer as those who breastfed for from 4 to 8 months.

The study population was all women and predominantly white. However, in the general population it is the non-Hispanic white population that is experiencing the greatest increase in incidence. Of course, the study could not answer whether this association with breastfeeding also existed in minority populations.

The researchers suspect that what they are seeing is a reflection of the Westernization of the American lifestyle. One of the researchers is interested in the gut biome of infants and plans to further the investigation in that direction. Could some substance from the environment be concentrating in breast milk? Or is something missing in breast milk? She points out that, while formulas are generally fortified with vitamin D, breast milk is not.

As concerning as the results of this study may sound, the authors are very careful to urge mothers to continue to breastfeed and choose it as their first choice for feeding their babies. I have been pleasantly surprised that this study has not gotten widespread media attention because bad news travels fast. I have chosen to share it with you because at some point you may begin getting questions from concerned parents.

While apparently well done, this study is just the beginning. Like any good research, it poses more questions than it answers. For us as pediatricians it means we should continue to recommend breast milk as the first food. But, we must stay alert as further research looks deeper into this association.

We should also take advantage of our special access to young parents, a demographic that less frequently sees a physician for preventive care. For whatever reason colorectal cancer is occurring at younger ages. When we have the opportunity we should be reminding 40-year-olds not to wait until age 50 to screen for colorectal cancer, particularly if they have a family history of the disease.

Dr. Wilkoff practiced primary care pediatrics in Brunswick, Maine, for nearly 40 years. He has authored several books on behavioral pediatrics, including “How to Say No to Your Toddler.” Other than a Littman stethoscope he accepted as a first-year medical student in 1966, Dr. Wilkoff reports having nothing to disclose. Email him at [email protected].

I, like every pediatrician I know, believe that breast milk is the best nutrition for human newborns. Its balance of nutritive elements and its role in preventing of a wide range of illnesses are so great that we are still learning the extent of their magnitude. It just makes sense that a mother’s milk is most well suited for her baby.

I am a bit less unambiguous about breastfeeding. By that I mean the process of providing breast milk to an infant directly from its mother’s breast. Before you yank my AAP membership card, let me make it clear that I think every woman should consider breastfeeding her infant. But we must accept that in a few situations, even with help from caring and enlightened health care providers and family members, breastfeeding doesn’t work as well as we would have hoped. Fortunately, there are alternatives.

My reservations about the process are few, and until recently I have had an unwaveringly positive attitude toward the safety of breast milk. The cause of my little bit of uncertainty arrived in a recent study by two researchers at the Dana Farber Institute in Boston, in which the investigators examining the health histories of more than 150,000 women found that those who were breastfed incurred a 23% greater risk of developing colorectal cancer when they reached adulthood. A younger cohort within that larger group had a dramatic 40% increased risk of developing high-risk cancer before reaching age 55.

The population the investigators studied came from the large Nurses’ Health Study II, a well-known repository of longitudinal health data. The researchers reported that they included biometric data and a large collection of lifestyle factors including smoking, alcohol intake, and diet in their calculations. However, breastfeeding continued to register the highest association. Interestingly, the investigators found that women who were breastfed for 9 months or longer had twice the risk of colorectal cancer as those who breastfed for from 4 to 8 months.

The study population was all women and predominantly white. However, in the general population it is the non-Hispanic white population that is experiencing the greatest increase in incidence. Of course, the study could not answer whether this association with breastfeeding also existed in minority populations.

The researchers suspect that what they are seeing is a reflection of the Westernization of the American lifestyle. One of the researchers is interested in the gut biome of infants and plans to further the investigation in that direction. Could some substance from the environment be concentrating in breast milk? Or is something missing in breast milk? She points out that, while formulas are generally fortified with vitamin D, breast milk is not.

As concerning as the results of this study may sound, the authors are very careful to urge mothers to continue to breastfeed and choose it as their first choice for feeding their babies. I have been pleasantly surprised that this study has not gotten widespread media attention because bad news travels fast. I have chosen to share it with you because at some point you may begin getting questions from concerned parents.

While apparently well done, this study is just the beginning. Like any good research, it poses more questions than it answers. For us as pediatricians it means we should continue to recommend breast milk as the first food. But, we must stay alert as further research looks deeper into this association.

We should also take advantage of our special access to young parents, a demographic that less frequently sees a physician for preventive care. For whatever reason colorectal cancer is occurring at younger ages. When we have the opportunity we should be reminding 40-year-olds not to wait until age 50 to screen for colorectal cancer, particularly if they have a family history of the disease.

Dr. Wilkoff practiced primary care pediatrics in Brunswick, Maine, for nearly 40 years. He has authored several books on behavioral pediatrics, including “How to Say No to Your Toddler.” Other than a Littman stethoscope he accepted as a first-year medical student in 1966, Dr. Wilkoff reports having nothing to disclose. Email him at [email protected].

WASHINGTON – Teens can access products containing Delta 8, a psychoactive cannabinoid, fairly easily and cheaply through online sites that don’t require age verification for purchases, researchers reported at the 2023 annual meeting of the American Academy of Pediatrics. Most of the products identified came in bright, colorful, kid-friendly packaging and cost less than $10, the researchers found, and only 2 out of 45 sites had a third-party age verification requirement for purchases.

AAP

Delta-8 THC, also called D8, is a synthetically produced cannabinoid whose chemical structure and effects are nearly identical to traditional THC, the authors explained, and past research has found that D8 products, such as e-cigarettes, can contain toxic byproducts and contaminants.

”Since D8 is not traditional THC, minors may underestimate its strength and potential danger,” wrote lead author Abhijeet Grewal, BS, a research assistant at Cohen Children’s Medical Center, New York, and senior author Ruth Milanaik, DO, director of the Neonatal Neurodevelopmental Program at Cohen Children’s and a developmental/behavioral pediatrician at Northwell Health, also in New York. “Although traditional THC is a federally banned substance, D8 is legal on a federal level and less restricted on a state by state basis, making it easier for individuals to acquire D8.”
 

Easily accessible

During the first seven moments of 2021, 77% of reports of accidental exposure occurred in people under age 18, including some children who required ICU admission. The U.S. Food and Drug Administration also received 104 reports of adverse events from products containing D8 between December 2020-February 2022, and more than half of those required medical intervention.

To better understand how easy it is to access D8, the authors collected data on 45 websites they identified that sold D8. The researchers looked for age verification questions for accessing the site, third-party age certification, what kinds of products (edibles, smoke products, or tinctures) were sold, the price and dosage of the cheapest product, and examples of packaging, flavors, marketing claims, and warning statements at each site.

More than a third of the sites (36%) did not ask for customers’ age and almost none of the sites asked for proof: 96% of the sites lacked formal third-party age verification procedures. All but one of the sites sold D8 edibles, and most (82%) sold D8 vaping or smoking products. Only 42% sold tinctures, a mix of concentrated D8 with oil that’s orally consumed.

The cheapest product was priced under $5 on one-third of the sites and under $10 on another third of the sites. The cheapest product was between $10-20 on 16% of the sites while the remaining nine sites’ cheapest product was more than $20. In assessing only the cheapest D8 products on each site, nearly half (47%) contained 51 mg or more of D8, and 20% of the products didn’t report the dosage. Another 22% contained 41-50 mg of D8, and the remaining five products contained 20-40 mg.
 

Kid-friendly D8

More than half of the D8 products were sold in kid-friendly packaging – packages with bright, colorful designs and fonts that resemble candy or snack food, sometimes cartoon characters or fun items like dice on the packaging. Further, 24% of the websites did not include any warnings or other health information about D8.

“The low prices, high dosages available, and eye-popping packaging make these products extremely attractive to teens who are looking for a high,” the researchers concluded. They advised clinicians to talk with teen patients about the dangers of D8 and advocated for policymakers to more strictly regulate online distributors of D8 products, particularly in requiring age verification procedures and prohibiting kid-friendly packaging.

Megan Moreno, MD, MSEd, MPH, an adolescent medicine physician and researcher at the University of Wisconsin, Madison, School of Medicine and Public Health and UWHealthKids, was particularly struck by how eye-catching the packaging was. “The bright colors and font choices are really designed to attract adolescents,” commented Dr. Moreno, who was not involved in the study. But she was not surprised overall by the findings.

“Other studies have found that the cannabis industry leverages online tools and social media, alongside youth-friendly packaging, to attract youth to their products,” she said. “What is disappointing is that these companies do not use industry standard approaches, such as the alcohol industry, to age-gate their websites.”

It’s important for providers who care for adolescents to ask about substance use but to especially include questions about substances that teens might not think of as “drugs,” such as Delta 8, Dr. Moreno said.

“Prior research on other types of substance such as these has found that teens can think these are less dangerous versions of cannabis, so providing accurate information and asking about these products can prevent harm to kids,” Dr. Moreno said. Although this study focused on websites that sell D8 products, she said that “another important area of influence to consider is social media messaging around these products, which may drive traffic to the purchasing site.” It’s clear this industry is not going to self-regulate without policy changes, Dr. Moreno added, so she noted the importance of advocating for policy that regulates these sites.

Mr. Grewal, Dr. Milanaik and Dr. Moreno had no disclosures. No external funding sources were noted.

WASHINGTON – Teens can access products containing Delta 8, a psychoactive cannabinoid, fairly easily and cheaply through online sites that don’t require age verification for purchases, researchers reported at the 2023 annual meeting of the American Academy of Pediatrics. Most of the products identified came in bright, colorful, kid-friendly packaging and cost less than $10, the researchers found, and only 2 out of 45 sites had a third-party age verification requirement for purchases.

AAP

Delta-8 THC, also called D8, is a synthetically produced cannabinoid whose chemical structure and effects are nearly identical to traditional THC, the authors explained, and past research has found that D8 products, such as e-cigarettes, can contain toxic byproducts and contaminants.

”Since D8 is not traditional THC, minors may underestimate its strength and potential danger,” wrote lead author Abhijeet Grewal, BS, a research assistant at Cohen Children’s Medical Center, New York, and senior author Ruth Milanaik, DO, director of the Neonatal Neurodevelopmental Program at Cohen Children’s and a developmental/behavioral pediatrician at Northwell Health, also in New York. “Although traditional THC is a federally banned substance, D8 is legal on a federal level and less restricted on a state by state basis, making it easier for individuals to acquire D8.”
 

Easily accessible

During the first seven moments of 2021, 77% of reports of accidental exposure occurred in people under age 18, including some children who required ICU admission. The U.S. Food and Drug Administration also received 104 reports of adverse events from products containing D8 between December 2020-February 2022, and more than half of those required medical intervention.

To better understand how easy it is to access D8, the authors collected data on 45 websites they identified that sold D8. The researchers looked for age verification questions for accessing the site, third-party age certification, what kinds of products (edibles, smoke products, or tinctures) were sold, the price and dosage of the cheapest product, and examples of packaging, flavors, marketing claims, and warning statements at each site.

More than a third of the sites (36%) did not ask for customers’ age and almost none of the sites asked for proof: 96% of the sites lacked formal third-party age verification procedures. All but one of the sites sold D8 edibles, and most (82%) sold D8 vaping or smoking products. Only 42% sold tinctures, a mix of concentrated D8 with oil that’s orally consumed.

The cheapest product was priced under $5 on one-third of the sites and under $10 on another third of the sites. The cheapest product was between $10-20 on 16% of the sites while the remaining nine sites’ cheapest product was more than $20. In assessing only the cheapest D8 products on each site, nearly half (47%) contained 51 mg or more of D8, and 20% of the products didn’t report the dosage. Another 22% contained 41-50 mg of D8, and the remaining five products contained 20-40 mg.
 

Kid-friendly D8

More than half of the D8 products were sold in kid-friendly packaging – packages with bright, colorful designs and fonts that resemble candy or snack food, sometimes cartoon characters or fun items like dice on the packaging. Further, 24% of the websites did not include any warnings or other health information about D8.

“The low prices, high dosages available, and eye-popping packaging make these products extremely attractive to teens who are looking for a high,” the researchers concluded. They advised clinicians to talk with teen patients about the dangers of D8 and advocated for policymakers to more strictly regulate online distributors of D8 products, particularly in requiring age verification procedures and prohibiting kid-friendly packaging.

Megan Moreno, MD, MSEd, MPH, an adolescent medicine physician and researcher at the University of Wisconsin, Madison, School of Medicine and Public Health and UWHealthKids, was particularly struck by how eye-catching the packaging was. “The bright colors and font choices are really designed to attract adolescents,” commented Dr. Moreno, who was not involved in the study. But she was not surprised overall by the findings.

“Other studies have found that the cannabis industry leverages online tools and social media, alongside youth-friendly packaging, to attract youth to their products,” she said. “What is disappointing is that these companies do not use industry standard approaches, such as the alcohol industry, to age-gate their websites.”

It’s important for providers who care for adolescents to ask about substance use but to especially include questions about substances that teens might not think of as “drugs,” such as Delta 8, Dr. Moreno said.

“Prior research on other types of substance such as these has found that teens can think these are less dangerous versions of cannabis, so providing accurate information and asking about these products can prevent harm to kids,” Dr. Moreno said. Although this study focused on websites that sell D8 products, she said that “another important area of influence to consider is social media messaging around these products, which may drive traffic to the purchasing site.” It’s clear this industry is not going to self-regulate without policy changes, Dr. Moreno added, so she noted the importance of advocating for policy that regulates these sites.

Mr. Grewal, Dr. Milanaik and Dr. Moreno had no disclosures. No external funding sources were noted.

WASHINGTON – Teens can access products containing Delta 8, a psychoactive cannabinoid, fairly easily and cheaply through online sites that don’t require age verification for purchases, researchers reported at the 2023 annual meeting of the American Academy of Pediatrics. Most of the products identified came in bright, colorful, kid-friendly packaging and cost less than $10, the researchers found, and only 2 out of 45 sites had a third-party age verification requirement for purchases.

AAP

Delta-8 THC, also called D8, is a synthetically produced cannabinoid whose chemical structure and effects are nearly identical to traditional THC, the authors explained, and past research has found that D8 products, such as e-cigarettes, can contain toxic byproducts and contaminants.

”Since D8 is not traditional THC, minors may underestimate its strength and potential danger,” wrote lead author Abhijeet Grewal, BS, a research assistant at Cohen Children’s Medical Center, New York, and senior author Ruth Milanaik, DO, director of the Neonatal Neurodevelopmental Program at Cohen Children’s and a developmental/behavioral pediatrician at Northwell Health, also in New York. “Although traditional THC is a federally banned substance, D8 is legal on a federal level and less restricted on a state by state basis, making it easier for individuals to acquire D8.”
 

Easily accessible

During the first seven moments of 2021, 77% of reports of accidental exposure occurred in people under age 18, including some children who required ICU admission. The U.S. Food and Drug Administration also received 104 reports of adverse events from products containing D8 between December 2020-February 2022, and more than half of those required medical intervention.

To better understand how easy it is to access D8, the authors collected data on 45 websites they identified that sold D8. The researchers looked for age verification questions for accessing the site, third-party age certification, what kinds of products (edibles, smoke products, or tinctures) were sold, the price and dosage of the cheapest product, and examples of packaging, flavors, marketing claims, and warning statements at each site.

More than a third of the sites (36%) did not ask for customers’ age and almost none of the sites asked for proof: 96% of the sites lacked formal third-party age verification procedures. All but one of the sites sold D8 edibles, and most (82%) sold D8 vaping or smoking products. Only 42% sold tinctures, a mix of concentrated D8 with oil that’s orally consumed.

The cheapest product was priced under $5 on one-third of the sites and under $10 on another third of the sites. The cheapest product was between $10-20 on 16% of the sites while the remaining nine sites’ cheapest product was more than $20. In assessing only the cheapest D8 products on each site, nearly half (47%) contained 51 mg or more of D8, and 20% of the products didn’t report the dosage. Another 22% contained 41-50 mg of D8, and the remaining five products contained 20-40 mg.
 

Kid-friendly D8

More than half of the D8 products were sold in kid-friendly packaging – packages with bright, colorful designs and fonts that resemble candy or snack food, sometimes cartoon characters or fun items like dice on the packaging. Further, 24% of the websites did not include any warnings or other health information about D8.

“The low prices, high dosages available, and eye-popping packaging make these products extremely attractive to teens who are looking for a high,” the researchers concluded. They advised clinicians to talk with teen patients about the dangers of D8 and advocated for policymakers to more strictly regulate online distributors of D8 products, particularly in requiring age verification procedures and prohibiting kid-friendly packaging.

Megan Moreno, MD, MSEd, MPH, an adolescent medicine physician and researcher at the University of Wisconsin, Madison, School of Medicine and Public Health and UWHealthKids, was particularly struck by how eye-catching the packaging was. “The bright colors and font choices are really designed to attract adolescents,” commented Dr. Moreno, who was not involved in the study. But she was not surprised overall by the findings.

“Other studies have found that the cannabis industry leverages online tools and social media, alongside youth-friendly packaging, to attract youth to their products,” she said. “What is disappointing is that these companies do not use industry standard approaches, such as the alcohol industry, to age-gate their websites.”

It’s important for providers who care for adolescents to ask about substance use but to especially include questions about substances that teens might not think of as “drugs,” such as Delta 8, Dr. Moreno said.

“Prior research on other types of substance such as these has found that teens can think these are less dangerous versions of cannabis, so providing accurate information and asking about these products can prevent harm to kids,” Dr. Moreno said. Although this study focused on websites that sell D8 products, she said that “another important area of influence to consider is social media messaging around these products, which may drive traffic to the purchasing site.” It’s clear this industry is not going to self-regulate without policy changes, Dr. Moreno added, so she noted the importance of advocating for policy that regulates these sites.

Mr. Grewal, Dr. Milanaik and Dr. Moreno had no disclosures. No external funding sources were noted.

Among patients with asthma and comorbid gastroesophageal reflux disease (GERD), the biologic tezepelumab (Tezspire, Amgen) had similar efficacy at reducing exacerbations, improving lung function, and symptom control as observed in patients with asthma alone, according to a new post-hoc analysis of the phase 2b PATHWAY and phase 3 NAVIGATOR clinical trials.

GERD occurs in about 60% of asthma patients, and the comorbidity is associated with a greater risk of asthma exacerbations. “As we start doing subgroup analyses, we are looking at different comorbidities and reflux is one that’s very common and very impactful on asthma outcomes in a negative way, so it became an area of interest,” said Njira Lugogo, MD, who presented the study during a poster session at the annual meeting of the American College of Chest Physicians (CHEST). She is a professor of internal medicine and pulmonary critical care at the University of Michigan, Ann Arbor.

The analysis confirmed other findings, with comorbid GERD associated with more exacerbations, use of maintenance steroids, and high-dose inhaled steroids. “They had more disease activity, and the effect [of tezepelumab treatment] was similar whether you had reflux or didn’t have reflux. It did seem like the people without reflux had a slightly higher reduction in exacerbations, so maybe there is a slight difference, but overall it looked like both groups were really improving,” said Dr. Lugogo.

Tezepelumab is a newer biologic, having received Food and Drug Administration approval in 2021. It targets the epithelial cytokine thymic stromal lymphopoietin (TSLP), which contributes allergic inflammatory responses by acting on various innate immune cells, including dendritic cells, mast cells, and CD34+ progenitor cells. It is upregulated in the airways of asthma patients, with higher levels linked to more severe disease. A single-nucleotide polymorphism in the gene that codes TSLP has also been found to be protective against asthma, atopic asthma, and airway hyper-responsiveness.

Dr. Lugogo noted that TSLP could be a factor in how GERD may worsen trigger or worsen asthma. It is produced in the epithelium of the upper airway in response to injury, which could include aspiration into bronchial tubes attributable to GERD, and this could lead to a downstream inflammatory and immune response. “Reducing the production of or at least blocking TSLP from an epithelium that’s being irritated by acid reflux could have potential benefits. On the reverse side, could the continued presence of reflux blunt the expected response [to tezepelumab]? If someone has very severe reflux, maybe you’ve treated their asthma with tezepelumab, and they’re still having symptoms. Could it be a masquerading issue [where] you have untreated reflux contributing to ongoing symptoms, which you’re attributing to not being related to asthma? So it’s looking at it in two different ways,” said Dr. Lugogo.

TSLP is the only biologic available to treat patients with non–type 2 inflammation, which includes about 10% of adult patients, according to Dr. Lugogo. Its mechanism also influences eosinophilic and allergic asthma. When tezepelumab first became available, Dr. Lugogo noticed that physicians tended to switch to it from another biologic rather than starting it up front, but that may be changing. “I feel like more and more people are starting it up front as a therapeutic intervention, so there seems to be more and more people embracing its use in the treatment of severe asthma,” she said.

The analysis included 294 patients with asthma and GERD and 1,040 with asthma alone. Patients in the GERD comorbidity group were older (55.0 versus 48.6 years), had a higher mean body mass index (30.8 versus 27.8), and were more likely to be female (67.3% versus 63.0%).

Maintenance oral corticosteroid use was higher in the GERD group (17.0% versus 6.9%), as was use of high inhaled corticosteroid dose (78.2% versus 67.0%), frequency of nasal polyps in the previous 2 years (21.4% versus 13.8%), and experience of more than two exacerbations in the previous year (42.2% versus 34.6%).

There was a 65% reduction (95% confidence interval, 50%-76%) in annualized asthma exacerbation rate versus placebo with tezepelumab treatment in the GERD group, compared with a 58% reduction in the asthma-only group (95% CI, 48%-66%). The drug led to a 0.10 increase in forced expiratory volume in 1 second versus placebo (95% CI, 0.00-0.19) at week 52 in the GERD group, versus 0.15 (95% CI, 0.10-0.20) in the asthma-only group. Tezepelumab also improved week 52 ACQ-6 scores in the GERD group (–0.39 versus placebo; 95% CI, –0.63 to –0.14) and the asthma-only group (–0.32 versus placebo; 95% CI, –0.45 to –0.19).

The study adds to the evidence supporting tezepelumab as a promising new therapy, according to Muhammad Adrish, MD, who attended the poster session and was asked to comment on the study. “I think that this is a very interesting analysis in the sense that gastric reflux disease is a frequent comorbid condition that we see in patients with asthma, and a lot of these patients can have poor outcomes. When you look at the results from the data, you see that regardless of how sick they were and how much medication utilization these patients have at baseline, they still had a pretty decent response to tezepelumab. That speaks to the efficacy of that drug along a wide spectrum of patients,” said Dr. Adrish, who is an associate professor of pulmonary, critical care, and sleep medicine at Baylor College of Medicine, Houston.

The PATHWAY and NAVIGATOR studies were funded by Amgen. Dr. Lugogo has advised or consulted for AstraZeneca, Amgen, Regeneron, TEVA, Avillion, Sanofi, Novartis, Genentech, GSK, and Janssen. Dr. Adrish has no relevant financial disclosures.

Among patients with asthma and comorbid gastroesophageal reflux disease (GERD), the biologic tezepelumab (Tezspire, Amgen) had similar efficacy at reducing exacerbations, improving lung function, and symptom control as observed in patients with asthma alone, according to a new post-hoc analysis of the phase 2b PATHWAY and phase 3 NAVIGATOR clinical trials.

GERD occurs in about 60% of asthma patients, and the comorbidity is associated with a greater risk of asthma exacerbations. “As we start doing subgroup analyses, we are looking at different comorbidities and reflux is one that’s very common and very impactful on asthma outcomes in a negative way, so it became an area of interest,” said Njira Lugogo, MD, who presented the study during a poster session at the annual meeting of the American College of Chest Physicians (CHEST). She is a professor of internal medicine and pulmonary critical care at the University of Michigan, Ann Arbor.

The analysis confirmed other findings, with comorbid GERD associated with more exacerbations, use of maintenance steroids, and high-dose inhaled steroids. “They had more disease activity, and the effect [of tezepelumab treatment] was similar whether you had reflux or didn’t have reflux. It did seem like the people without reflux had a slightly higher reduction in exacerbations, so maybe there is a slight difference, but overall it looked like both groups were really improving,” said Dr. Lugogo.

Tezepelumab is a newer biologic, having received Food and Drug Administration approval in 2021. It targets the epithelial cytokine thymic stromal lymphopoietin (TSLP), which contributes allergic inflammatory responses by acting on various innate immune cells, including dendritic cells, mast cells, and CD34+ progenitor cells. It is upregulated in the airways of asthma patients, with higher levels linked to more severe disease. A single-nucleotide polymorphism in the gene that codes TSLP has also been found to be protective against asthma, atopic asthma, and airway hyper-responsiveness.

Dr. Lugogo noted that TSLP could be a factor in how GERD may worsen trigger or worsen asthma. It is produced in the epithelium of the upper airway in response to injury, which could include aspiration into bronchial tubes attributable to GERD, and this could lead to a downstream inflammatory and immune response. “Reducing the production of or at least blocking TSLP from an epithelium that’s being irritated by acid reflux could have potential benefits. On the reverse side, could the continued presence of reflux blunt the expected response [to tezepelumab]? If someone has very severe reflux, maybe you’ve treated their asthma with tezepelumab, and they’re still having symptoms. Could it be a masquerading issue [where] you have untreated reflux contributing to ongoing symptoms, which you’re attributing to not being related to asthma? So it’s looking at it in two different ways,” said Dr. Lugogo.

TSLP is the only biologic available to treat patients with non–type 2 inflammation, which includes about 10% of adult patients, according to Dr. Lugogo. Its mechanism also influences eosinophilic and allergic asthma. When tezepelumab first became available, Dr. Lugogo noticed that physicians tended to switch to it from another biologic rather than starting it up front, but that may be changing. “I feel like more and more people are starting it up front as a therapeutic intervention, so there seems to be more and more people embracing its use in the treatment of severe asthma,” she said.

The analysis included 294 patients with asthma and GERD and 1,040 with asthma alone. Patients in the GERD comorbidity group were older (55.0 versus 48.6 years), had a higher mean body mass index (30.8 versus 27.8), and were more likely to be female (67.3% versus 63.0%).

Maintenance oral corticosteroid use was higher in the GERD group (17.0% versus 6.9%), as was use of high inhaled corticosteroid dose (78.2% versus 67.0%), frequency of nasal polyps in the previous 2 years (21.4% versus 13.8%), and experience of more than two exacerbations in the previous year (42.2% versus 34.6%).

There was a 65% reduction (95% confidence interval, 50%-76%) in annualized asthma exacerbation rate versus placebo with tezepelumab treatment in the GERD group, compared with a 58% reduction in the asthma-only group (95% CI, 48%-66%). The drug led to a 0.10 increase in forced expiratory volume in 1 second versus placebo (95% CI, 0.00-0.19) at week 52 in the GERD group, versus 0.15 (95% CI, 0.10-0.20) in the asthma-only group. Tezepelumab also improved week 52 ACQ-6 scores in the GERD group (–0.39 versus placebo; 95% CI, –0.63 to –0.14) and the asthma-only group (–0.32 versus placebo; 95% CI, –0.45 to –0.19).

The study adds to the evidence supporting tezepelumab as a promising new therapy, according to Muhammad Adrish, MD, who attended the poster session and was asked to comment on the study. “I think that this is a very interesting analysis in the sense that gastric reflux disease is a frequent comorbid condition that we see in patients with asthma, and a lot of these patients can have poor outcomes. When you look at the results from the data, you see that regardless of how sick they were and how much medication utilization these patients have at baseline, they still had a pretty decent response to tezepelumab. That speaks to the efficacy of that drug along a wide spectrum of patients,” said Dr. Adrish, who is an associate professor of pulmonary, critical care, and sleep medicine at Baylor College of Medicine, Houston.

The PATHWAY and NAVIGATOR studies were funded by Amgen. Dr. Lugogo has advised or consulted for AstraZeneca, Amgen, Regeneron, TEVA, Avillion, Sanofi, Novartis, Genentech, GSK, and Janssen. Dr. Adrish has no relevant financial disclosures.

Among patients with asthma and comorbid gastroesophageal reflux disease (GERD), the biologic tezepelumab (Tezspire, Amgen) had similar efficacy at reducing exacerbations, improving lung function, and symptom control as observed in patients with asthma alone, according to a new post-hoc analysis of the phase 2b PATHWAY and phase 3 NAVIGATOR clinical trials.

GERD occurs in about 60% of asthma patients, and the comorbidity is associated with a greater risk of asthma exacerbations. “As we start doing subgroup analyses, we are looking at different comorbidities and reflux is one that’s very common and very impactful on asthma outcomes in a negative way, so it became an area of interest,” said Njira Lugogo, MD, who presented the study during a poster session at the annual meeting of the American College of Chest Physicians (CHEST). She is a professor of internal medicine and pulmonary critical care at the University of Michigan, Ann Arbor.

The analysis confirmed other findings, with comorbid GERD associated with more exacerbations, use of maintenance steroids, and high-dose inhaled steroids. “They had more disease activity, and the effect [of tezepelumab treatment] was similar whether you had reflux or didn’t have reflux. It did seem like the people without reflux had a slightly higher reduction in exacerbations, so maybe there is a slight difference, but overall it looked like both groups were really improving,” said Dr. Lugogo.

Tezepelumab is a newer biologic, having received Food and Drug Administration approval in 2021. It targets the epithelial cytokine thymic stromal lymphopoietin (TSLP), which contributes allergic inflammatory responses by acting on various innate immune cells, including dendritic cells, mast cells, and CD34+ progenitor cells. It is upregulated in the airways of asthma patients, with higher levels linked to more severe disease. A single-nucleotide polymorphism in the gene that codes TSLP has also been found to be protective against asthma, atopic asthma, and airway hyper-responsiveness.

Dr. Lugogo noted that TSLP could be a factor in how GERD may worsen trigger or worsen asthma. It is produced in the epithelium of the upper airway in response to injury, which could include aspiration into bronchial tubes attributable to GERD, and this could lead to a downstream inflammatory and immune response. “Reducing the production of or at least blocking TSLP from an epithelium that’s being irritated by acid reflux could have potential benefits. On the reverse side, could the continued presence of reflux blunt the expected response [to tezepelumab]? If someone has very severe reflux, maybe you’ve treated their asthma with tezepelumab, and they’re still having symptoms. Could it be a masquerading issue [where] you have untreated reflux contributing to ongoing symptoms, which you’re attributing to not being related to asthma? So it’s looking at it in two different ways,” said Dr. Lugogo.

TSLP is the only biologic available to treat patients with non–type 2 inflammation, which includes about 10% of adult patients, according to Dr. Lugogo. Its mechanism also influences eosinophilic and allergic asthma. When tezepelumab first became available, Dr. Lugogo noticed that physicians tended to switch to it from another biologic rather than starting it up front, but that may be changing. “I feel like more and more people are starting it up front as a therapeutic intervention, so there seems to be more and more people embracing its use in the treatment of severe asthma,” she said.

The analysis included 294 patients with asthma and GERD and 1,040 with asthma alone. Patients in the GERD comorbidity group were older (55.0 versus 48.6 years), had a higher mean body mass index (30.8 versus 27.8), and were more likely to be female (67.3% versus 63.0%).

Maintenance oral corticosteroid use was higher in the GERD group (17.0% versus 6.9%), as was use of high inhaled corticosteroid dose (78.2% versus 67.0%), frequency of nasal polyps in the previous 2 years (21.4% versus 13.8%), and experience of more than two exacerbations in the previous year (42.2% versus 34.6%).

There was a 65% reduction (95% confidence interval, 50%-76%) in annualized asthma exacerbation rate versus placebo with tezepelumab treatment in the GERD group, compared with a 58% reduction in the asthma-only group (95% CI, 48%-66%). The drug led to a 0.10 increase in forced expiratory volume in 1 second versus placebo (95% CI, 0.00-0.19) at week 52 in the GERD group, versus 0.15 (95% CI, 0.10-0.20) in the asthma-only group. Tezepelumab also improved week 52 ACQ-6 scores in the GERD group (–0.39 versus placebo; 95% CI, –0.63 to –0.14) and the asthma-only group (–0.32 versus placebo; 95% CI, –0.45 to –0.19).

The study adds to the evidence supporting tezepelumab as a promising new therapy, according to Muhammad Adrish, MD, who attended the poster session and was asked to comment on the study. “I think that this is a very interesting analysis in the sense that gastric reflux disease is a frequent comorbid condition that we see in patients with asthma, and a lot of these patients can have poor outcomes. When you look at the results from the data, you see that regardless of how sick they were and how much medication utilization these patients have at baseline, they still had a pretty decent response to tezepelumab. That speaks to the efficacy of that drug along a wide spectrum of patients,” said Dr. Adrish, who is an associate professor of pulmonary, critical care, and sleep medicine at Baylor College of Medicine, Houston.

The PATHWAY and NAVIGATOR studies were funded by Amgen. Dr. Lugogo has advised or consulted for AstraZeneca, Amgen, Regeneron, TEVA, Avillion, Sanofi, Novartis, Genentech, GSK, and Janssen. Dr. Adrish has no relevant financial disclosures.

The Diagnosis: Reactive Perforating Collagenosis

Reactive perforating collagenosis (RPC) is the most common type of primary perforating dermatosis and is characterized by the transepithelial elimination of collagen from the dermis. Although familial RPC usually presents in infancy or early childhood, the acquired form has a strong association with type 2 diabetes mellitus and chronic renal disease. Up to 10% of hemodialysis patients develop RPC.¹ Patients with RPC develop red-brown, umbilicated, papulonodular lesions, often with a central keratotic crust and erythematous halo. The lesions are variable in shape and size (typically up to 10 mm in diameter) and commonly are located on the trunk or extensor aspects of the limbs. Pruritus is the primary concern, and the Koebner phenomenon commonly is seen.²

Although the histopathology can vary depending on the stage of the lesion, an invaginating epidermal process with prominent epidermal hyperplasia surrounding a central plug of keratin, basophilic inflammatory debris, and degenerated collagen are findings indicative of RPC. At the base of the invagination, the altered collagen perforates through the epidermis by the process of transepidermal elimination.³ Trichrome stains can highlight the collagen, while Verhoeff–van Gieson staining is negative (no elastic fiber elimination). Anecdotal reports have described a variety of successful therapies including retinoids, allopurinol, doxycycline, dupilumab, and phototherapy, with phototherapy being especially effective in patients with coexistent renal disease.^4-8 Our patient was started on dupilumab 300 mg every other week and triamcinolone cream 0.1% twice daily (Monday through Friday) for itchy areas. The efficacy of the treatment was to be assessed at the next visit.

Elastosis perforans serpiginosa (EPS) is a rare skin disease that presents as small papules arranged in serpiginous or annular patterns on the neck, face, arms, or other flexural areas in early adulthood. It more commonly is seen in males and can be associated with other inherited disorders such as Down syndrome, Ehlers-Danlos syndrome, and Marfan syndrome. In rare instances, EPS has been linked to D-penicillamine.⁹ Elastosis perforans serpiginosa is characterized by focal dermal elastosis and transepithelial elimination of abnormal elastic fibers instead of collagen. The formation of narrow channels extending upward from the dermis in straight or corkscrew patterns commonly is seen (Figure 1). The dermis also may contain a chronic inflammatory infiltrate consisting of lymphocytes, macrophages, or multinucleated giant cells.¹⁰ Verhoeff– van Gieson stain highlights the altered elastic fibers in the papillary dermis.

Prurigo nodularis involves chronic, intensely pruritic, lichenified, excoriated nodules that often present as grouped symmetric lesions predominantly on the extensor aspects of the distal extremities and occasionally the trunk. Histologically, prurigo nodularis appears similar to lichen simplex chronicus but in a nodular form with pronounced hyperkeratosis and acanthosis, sometimes to the degree of pseudoepitheliomatous hyperplasia (Figure 2).¹¹ Its features may resemble chronic eczema with mild spongiosis and focal parakeratosis. In the dermis, there is vascular hyperplasia surrounded by perivascular inflammatory infiltrates. Immunohistochemical staining for calcitonin gene-related peptide and substance P may show a large increase of immunoreactive nerves in the lesional skin of nodular prurigo patients compared to the lichenified skin of eczema patients.¹² However, neural hyperplasia is not a diagnostic prerequisite in prurigo nodularis.¹³ Rarely, hyperplasic nerve trunks associated with Schwann cell proliferation may give rise to small neuromata that can be detected on electron microscopy.¹⁴ Screening for underlying systemic disease is recommended to rule out cancer, liver disease, chronic kidney disease, thyroid disorders, or HIV.

Ecthyma can affect children, adults, and especially immunocompromised patients at sites of trauma that allow entry of Streptococcus pyogenes or Staphylococcus aureus. Histologically, there is ulceration of the epidermis with a thick overlying inflammatory crust (Figure 3). The heavy infiltrate of neutrophils in the reticular dermis forms the base of the ulcer, and gram-positive cocci may be detected within the inflammatory crust. Ecthyma lesions may resemble the excoriations and shallow ulcers that are seen in a variety of other pruritic conditions.¹⁵

Pityriasis lichenoides et varioliformis acuta is a T-cell–mediated disease that is characterized by crops of lesions in varying sizes and stages including vesicular, hemorrhagic, ulcerated, and necrotic. It often results in varioliform scarring. Histologic findings can include parakeratosis, lichenoid inflammation, extravasation of red blood cells, vasculitis, and apoptotic keratinocytes (Figure 4).¹⁶

The Diagnosis: Reactive Perforating Collagenosis

Reactive perforating collagenosis (RPC) is the most common type of primary perforating dermatosis and is characterized by the transepithelial elimination of collagen from the dermis. Although familial RPC usually presents in infancy or early childhood, the acquired form has a strong association with type 2 diabetes mellitus and chronic renal disease. Up to 10% of hemodialysis patients develop RPC.¹ Patients with RPC develop red-brown, umbilicated, papulonodular lesions, often with a central keratotic crust and erythematous halo. The lesions are variable in shape and size (typically up to 10 mm in diameter) and commonly are located on the trunk or extensor aspects of the limbs. Pruritus is the primary concern, and the Koebner phenomenon commonly is seen.²

Although the histopathology can vary depending on the stage of the lesion, an invaginating epidermal process with prominent epidermal hyperplasia surrounding a central plug of keratin, basophilic inflammatory debris, and degenerated collagen are findings indicative of RPC. At the base of the invagination, the altered collagen perforates through the epidermis by the process of transepidermal elimination.³ Trichrome stains can highlight the collagen, while Verhoeff–van Gieson staining is negative (no elastic fiber elimination). Anecdotal reports have described a variety of successful therapies including retinoids, allopurinol, doxycycline, dupilumab, and phototherapy, with phototherapy being especially effective in patients with coexistent renal disease.^4-8 Our patient was started on dupilumab 300 mg every other week and triamcinolone cream 0.1% twice daily (Monday through Friday) for itchy areas. The efficacy of the treatment was to be assessed at the next visit.

Elastosis perforans serpiginosa (EPS) is a rare skin disease that presents as small papules arranged in serpiginous or annular patterns on the neck, face, arms, or other flexural areas in early adulthood. It more commonly is seen in males and can be associated with other inherited disorders such as Down syndrome, Ehlers-Danlos syndrome, and Marfan syndrome. In rare instances, EPS has been linked to D-penicillamine.⁹ Elastosis perforans serpiginosa is characterized by focal dermal elastosis and transepithelial elimination of abnormal elastic fibers instead of collagen. The formation of narrow channels extending upward from the dermis in straight or corkscrew patterns commonly is seen (Figure 1). The dermis also may contain a chronic inflammatory infiltrate consisting of lymphocytes, macrophages, or multinucleated giant cells.¹⁰ Verhoeff– van Gieson stain highlights the altered elastic fibers in the papillary dermis.

Prurigo nodularis involves chronic, intensely pruritic, lichenified, excoriated nodules that often present as grouped symmetric lesions predominantly on the extensor aspects of the distal extremities and occasionally the trunk. Histologically, prurigo nodularis appears similar to lichen simplex chronicus but in a nodular form with pronounced hyperkeratosis and acanthosis, sometimes to the degree of pseudoepitheliomatous hyperplasia (Figure 2).¹¹ Its features may resemble chronic eczema with mild spongiosis and focal parakeratosis. In the dermis, there is vascular hyperplasia surrounded by perivascular inflammatory infiltrates. Immunohistochemical staining for calcitonin gene-related peptide and substance P may show a large increase of immunoreactive nerves in the lesional skin of nodular prurigo patients compared to the lichenified skin of eczema patients.¹² However, neural hyperplasia is not a diagnostic prerequisite in prurigo nodularis.¹³ Rarely, hyperplasic nerve trunks associated with Schwann cell proliferation may give rise to small neuromata that can be detected on electron microscopy.¹⁴ Screening for underlying systemic disease is recommended to rule out cancer, liver disease, chronic kidney disease, thyroid disorders, or HIV.

Ecthyma can affect children, adults, and especially immunocompromised patients at sites of trauma that allow entry of Streptococcus pyogenes or Staphylococcus aureus. Histologically, there is ulceration of the epidermis with a thick overlying inflammatory crust (Figure 3). The heavy infiltrate of neutrophils in the reticular dermis forms the base of the ulcer, and gram-positive cocci may be detected within the inflammatory crust. Ecthyma lesions may resemble the excoriations and shallow ulcers that are seen in a variety of other pruritic conditions.¹⁵

Pityriasis lichenoides et varioliformis acuta is a T-cell–mediated disease that is characterized by crops of lesions in varying sizes and stages including vesicular, hemorrhagic, ulcerated, and necrotic. It often results in varioliform scarring. Histologic findings can include parakeratosis, lichenoid inflammation, extravasation of red blood cells, vasculitis, and apoptotic keratinocytes (Figure 4).¹⁶

The Diagnosis: Reactive Perforating Collagenosis

Reactive perforating collagenosis (RPC) is the most common type of primary perforating dermatosis and is characterized by the transepithelial elimination of collagen from the dermis. Although familial RPC usually presents in infancy or early childhood, the acquired form has a strong association with type 2 diabetes mellitus and chronic renal disease. Up to 10% of hemodialysis patients develop RPC.¹ Patients with RPC develop red-brown, umbilicated, papulonodular lesions, often with a central keratotic crust and erythematous halo. The lesions are variable in shape and size (typically up to 10 mm in diameter) and commonly are located on the trunk or extensor aspects of the limbs. Pruritus is the primary concern, and the Koebner phenomenon commonly is seen.²

Although the histopathology can vary depending on the stage of the lesion, an invaginating epidermal process with prominent epidermal hyperplasia surrounding a central plug of keratin, basophilic inflammatory debris, and degenerated collagen are findings indicative of RPC. At the base of the invagination, the altered collagen perforates through the epidermis by the process of transepidermal elimination.³ Trichrome stains can highlight the collagen, while Verhoeff–van Gieson staining is negative (no elastic fiber elimination). Anecdotal reports have described a variety of successful therapies including retinoids, allopurinol, doxycycline, dupilumab, and phototherapy, with phototherapy being especially effective in patients with coexistent renal disease.^4-8 Our patient was started on dupilumab 300 mg every other week and triamcinolone cream 0.1% twice daily (Monday through Friday) for itchy areas. The efficacy of the treatment was to be assessed at the next visit.

Elastosis perforans serpiginosa (EPS) is a rare skin disease that presents as small papules arranged in serpiginous or annular patterns on the neck, face, arms, or other flexural areas in early adulthood. It more commonly is seen in males and can be associated with other inherited disorders such as Down syndrome, Ehlers-Danlos syndrome, and Marfan syndrome. In rare instances, EPS has been linked to D-penicillamine.⁹ Elastosis perforans serpiginosa is characterized by focal dermal elastosis and transepithelial elimination of abnormal elastic fibers instead of collagen. The formation of narrow channels extending upward from the dermis in straight or corkscrew patterns commonly is seen (Figure 1). The dermis also may contain a chronic inflammatory infiltrate consisting of lymphocytes, macrophages, or multinucleated giant cells.¹⁰ Verhoeff– van Gieson stain highlights the altered elastic fibers in the papillary dermis.

Prurigo nodularis involves chronic, intensely pruritic, lichenified, excoriated nodules that often present as grouped symmetric lesions predominantly on the extensor aspects of the distal extremities and occasionally the trunk. Histologically, prurigo nodularis appears similar to lichen simplex chronicus but in a nodular form with pronounced hyperkeratosis and acanthosis, sometimes to the degree of pseudoepitheliomatous hyperplasia (Figure 2).¹¹ Its features may resemble chronic eczema with mild spongiosis and focal parakeratosis. In the dermis, there is vascular hyperplasia surrounded by perivascular inflammatory infiltrates. Immunohistochemical staining for calcitonin gene-related peptide and substance P may show a large increase of immunoreactive nerves in the lesional skin of nodular prurigo patients compared to the lichenified skin of eczema patients.¹² However, neural hyperplasia is not a diagnostic prerequisite in prurigo nodularis.¹³ Rarely, hyperplasic nerve trunks associated with Schwann cell proliferation may give rise to small neuromata that can be detected on electron microscopy.¹⁴ Screening for underlying systemic disease is recommended to rule out cancer, liver disease, chronic kidney disease, thyroid disorders, or HIV.

Ecthyma can affect children, adults, and especially immunocompromised patients at sites of trauma that allow entry of Streptococcus pyogenes or Staphylococcus aureus. Histologically, there is ulceration of the epidermis with a thick overlying inflammatory crust (Figure 3). The heavy infiltrate of neutrophils in the reticular dermis forms the base of the ulcer, and gram-positive cocci may be detected within the inflammatory crust. Ecthyma lesions may resemble the excoriations and shallow ulcers that are seen in a variety of other pruritic conditions.¹⁵

Pityriasis lichenoides et varioliformis acuta is a T-cell–mediated disease that is characterized by crops of lesions in varying sizes and stages including vesicular, hemorrhagic, ulcerated, and necrotic. It often results in varioliform scarring. Histologic findings can include parakeratosis, lichenoid inflammation, extravasation of red blood cells, vasculitis, and apoptotic keratinocytes (Figure 4).¹⁶

Ultraprocessed foods (UPFs) make up nearly three-quarters of the entire U.S. food supply and about 60% of Americans’ daily caloric intake. A significant body of research has tied consumption of these foods – awash in added sugar, salt, fat, artificial colors, or preservatives – to cancer, diabetes, and heart disease.
 

Now, a growing number of studies also link them to poor brain health, including an increased risk of dementia, depression, and anxiety, and some experts are calling for public health policies aimed at reducing UPF consumption.

But what’s the science behind the link between UPFs and brain health and what does it mean for clinicians and their patients?
 

Under srutiny

A mainstay of diets in countries around the world, UPFs have come under increasing scrutiny because of their link to major diseases. The ingredients in UPFs add little or no nutritional value. Their primary function is to increase a product’s shelf life and palatability. Some recent evidence suggests these foods may be as addictive as tobacco. In addition, two pooled analysis studies using the Yale Food Addiction Scale showed that 14% of adults and 12% of children in the United States may have a UPF addiction.

The most widely used measure of what is, and what is not, a UPF was developed in 2009 by researchers in Brazil. The NOVA food classification system assigns food and beverages to one of four groups:

• Unprocessed and minimally processed foods, such as fruits, vegetables, milk, and meat.
• Processed culinary ingredients, including white sugar, butter, and oils derived from seeds, nuts, and fruits.
• Processed foods, such as tomato paste, bacon, canned tuna, and wine.
• Ultraprocessed foods, such as soda, ice cream, breakfast cereal, and prepackaged meals.

Those sounding the alarm about the potential harmful effects of UPFs are particularly concerned about their consumption by young people. The National Health and Nutrition Examination Survey showed that from 1999 to 2018, highly processed foods accounted for the majority of energy intake in those aged 2-19 years.

One of the most commonly used additives in UPFs, the artificial sweetener aspartame, garnered headlines this summer when the World Health Organization classified it as a likely carcinogen in humans. Aspartame is used in thousands of products, from soda to chewing gum to chewable vitamins.

The U.S. Food and Drug Administration strongly disagreed with the WHO’s position and is sticking by its recommended daily limit of 50 mg/kg of body weight – equivalent to 75 packets of the sweetener Equal – as safe for human consumption.

“Aspartame is one of the most studied food additives in the human food supply,” FDA officials said in a statement, adding that the agency found “significant shortcomings” in the studies the WHO used to justify the new classification. “FDA scientists do not have safety concerns when aspartame is used under the approved conditions.”

Increased attention to consumption of UPFs in general and aspartame particularly in recent years has yielded several studies pointing to the foods’ association with compromised brain health.
 

Link to depression, dementia

A recent report on UPF consumption and mental well-being among nearly 300,000 people across 70 countries showed that 53% of those who consumed UPFs several times a day were distressed or were struggling with their mental well-being, compared with 18% of those who rarely or never consumed UPFs.

Part of the Global Mind Project run by the nonprofit Sapien Labs in Arlington, Va., the report also showed that individuals with the highest rates of UPF consumption reported higher levels of confusion, slowed thinking, unwanted or obsessive thoughts, irritability, and feelings of sadness.

“There seems to be a much broader effect than just depression symptoms,” Tara Thiagarajan, PhD, founder and chief scientist of Sapien Labs and coauthor of the report, said in an interview.

The report, which has not been peer reviewed, comes on the heels of several other studies, including one from the Nurses Health Study II that showed that participants who consumed more than eight servings of UPFs daily had about a 50% higher depression risk, compared with those who consumed half that much.

“We found that UPFs in general, and artificial sweeteners and beverages in particular, were associated with increased risk,” said lead investigator Andrew T. Chan, MD, MPH, professor of medicine at Harvard Medical School and chief of the clinical and translational epidemiology unit, Massachusetts General Hospital, both in Boston.

“This was an interesting finding that correlates with data from animal studies that artificial sweeteners may trigger the transmission of particular signaling molecules in the brain that are important for mood,” he told this news organization.

Cognition may also be affected. An analysis of more than 72,000 people in the UK Biobank showed that those who consumed a high levels of UPFs were 50% more likely to develop dementia than those who consumed fewer processed foods. For every 10% increase in UPF consumption, the odds of developing any kind of dementia increased by 25%.

Another study of nearly 11,000 people showed that higher UPF consumption was associated with a significantly faster decline in executive and global cognitive function.
 

Epigenetic changes

While these and other studies suggest a link between UPF consumption and brain health, they are designed to demonstrate correlation. To date, no human study has proven that eating highly processed foods directly causes a decline in mental health or cognition.

Animal studies could provide that causal link. Earlier this year, researchers at Florida State University in Tallahassee reported learning and memory deficits in two groups of male mice that completed a maze test after being fed water mixed with aspartame for about 20% of their adult lives, compared with a group of mice that drank water only. Animals that ingested aspartame could finish the test, but it took them longer, and they needed help.

The amount of aspartame used in the study was just 7% and 15% of the FDA’s recommended maximum intake of aspartame (equivalent to two to four 8-ounce diet sodas daily).

Most intriguing was that offspring of the mice in the aspartame groups demonstrated the same levels of cognitive decline and anxiety as their fathers, even though they had never ingested the artificial sweetener. Researchers theorize that in addition to changes in brain gene expression, aspartame also caused epigenetic changes in germ cells.

“Epigenetic changes in germ cells due to environmental exposures are both good and bad,” lead investigator Pradeep G. Bhide, PhD, professor of developmental neuroscience and director of the Center for Brain Repair at FSU, told this news organization. “They are bad because the next generation is affected. But they’re good because as long as the exposure no longer occurs, 2 or 3 generations later, that’s gone.”

The mice, which lacked taste receptors for aspartame, were the same age and weight in all three groups. Because the only difference was exposure to the artificial sweetener, Dr. Bhide says it suggests a causal link.

“Extrapolation of data from well-controlled laboratory experiments in mice to humans is always risky,” Dr. Bhide said. “The extrapolations give us insights into what could happen rather than what will happen.”
 

Potential mechanisms

Although scientists can’t say for certain how UPFs affect brain health, there are several theories. UPFs may influence an inflammatory immune response, which has been linked to depression and dementia. Consumption of highly processed foods may also disrupt the gut microbiome, Dr. Chan said, which, in turn, may increase depression risk.

“This is an important potential mechanism linking ultraprocessed food to depression since there is emerging evidence that microbes in the gut have been linked with mood through their role in metabolizing and producing proteins that have activity in the brain,” he said.

In addition, with UPFs that contain aspartame, there could be a more direct link to brain function. In the gastrointestinal track, the sweetener is quickly broken down into methanol, aspartic acid, and phenylalanine. All three enter the bloodstream, cross the blood-brain barrier, and are neuroactive.

“Phenylalanine is a precursor for neurotransmitters in the brain, and aspartic acid activates the glutamate excitatory neurotransmitter receptor,” Dr. Bhide said. “The effects we’ve seen could be due to these metabolites that have a direct effect on the brain function.”
 

Time to act?

Some researchers are building a case for classifying UPFs as addictive substances. Others are calling for additional research on UPF safety that is conducted outside the food industry.

There has also been some discussion of placing warning labels on UPFs. However, there is disagreement about what information should be included and how consumers might interpret it. The question of which food products are UPFs and which are not also isn’t settled. The NOVA system may be widely used, but it still has its detractors who believe it misclassifies some healthy foods as ultraprocessed.

Dr. Chan and other experts say the research conducted thus far requires additional corroboration to inform appropriate public health interventions. That would likely take the form of a large, randomized trial with one group of participants eating a healthy diet and the other consuming large amounts of UPFs.

“This type of study is extremely challenging given the number of people that would have to be willing to participate and be willing to eat a very specific diet over a long period of time,” Dr. Chan said. “I am also not sure it would be ethical to assign people to such a diet, given what we already know about the potential health effects of UPFs.”

Dr. Thiagarajan and others have called on funding agencies to direct more grant monies toward studies of UPFs to better understand their effect on brain health.

“Given the magnitude of the problem and given that there is a fair bit of evidence that points to a potential causal link, then we damn well better put money into this and get to the bottom of it,” she said.

Others are looking to the FDA to increase the agency’s scrutiny of food additives. While some additives such as artificial sweeteners have a place in diets of people with diabetes or obesity, Dr. Bhide suggests it may be wise for healthy individuals to reduce their daily intake of UPFs.

“Our data raise this to a different level because of the transgenerational transmission, which has never been shown before,” he said. “We are saying that the FDA should look in preclinical models at germ cells and maybe transgenerational transmission before approving any food additive.”

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

Ultraprocessed foods (UPFs) make up nearly three-quarters of the entire U.S. food supply and about 60% of Americans’ daily caloric intake. A significant body of research has tied consumption of these foods – awash in added sugar, salt, fat, artificial colors, or preservatives – to cancer, diabetes, and heart disease.
 

Now, a growing number of studies also link them to poor brain health, including an increased risk of dementia, depression, and anxiety, and some experts are calling for public health policies aimed at reducing UPF consumption.

But what’s the science behind the link between UPFs and brain health and what does it mean for clinicians and their patients?
 

Under srutiny

A mainstay of diets in countries around the world, UPFs have come under increasing scrutiny because of their link to major diseases. The ingredients in UPFs add little or no nutritional value. Their primary function is to increase a product’s shelf life and palatability. Some recent evidence suggests these foods may be as addictive as tobacco. In addition, two pooled analysis studies using the Yale Food Addiction Scale showed that 14% of adults and 12% of children in the United States may have a UPF addiction.

The most widely used measure of what is, and what is not, a UPF was developed in 2009 by researchers in Brazil. The NOVA food classification system assigns food and beverages to one of four groups:

• Unprocessed and minimally processed foods, such as fruits, vegetables, milk, and meat.
• Processed culinary ingredients, including white sugar, butter, and oils derived from seeds, nuts, and fruits.
• Processed foods, such as tomato paste, bacon, canned tuna, and wine.
• Ultraprocessed foods, such as soda, ice cream, breakfast cereal, and prepackaged meals.

Those sounding the alarm about the potential harmful effects of UPFs are particularly concerned about their consumption by young people. The National Health and Nutrition Examination Survey showed that from 1999 to 2018, highly processed foods accounted for the majority of energy intake in those aged 2-19 years.

One of the most commonly used additives in UPFs, the artificial sweetener aspartame, garnered headlines this summer when the World Health Organization classified it as a likely carcinogen in humans. Aspartame is used in thousands of products, from soda to chewing gum to chewable vitamins.

The U.S. Food and Drug Administration strongly disagreed with the WHO’s position and is sticking by its recommended daily limit of 50 mg/kg of body weight – equivalent to 75 packets of the sweetener Equal – as safe for human consumption.

“Aspartame is one of the most studied food additives in the human food supply,” FDA officials said in a statement, adding that the agency found “significant shortcomings” in the studies the WHO used to justify the new classification. “FDA scientists do not have safety concerns when aspartame is used under the approved conditions.”

Increased attention to consumption of UPFs in general and aspartame particularly in recent years has yielded several studies pointing to the foods’ association with compromised brain health.
 

Link to depression, dementia

A recent report on UPF consumption and mental well-being among nearly 300,000 people across 70 countries showed that 53% of those who consumed UPFs several times a day were distressed or were struggling with their mental well-being, compared with 18% of those who rarely or never consumed UPFs.

Part of the Global Mind Project run by the nonprofit Sapien Labs in Arlington, Va., the report also showed that individuals with the highest rates of UPF consumption reported higher levels of confusion, slowed thinking, unwanted or obsessive thoughts, irritability, and feelings of sadness.

“There seems to be a much broader effect than just depression symptoms,” Tara Thiagarajan, PhD, founder and chief scientist of Sapien Labs and coauthor of the report, said in an interview.

The report, which has not been peer reviewed, comes on the heels of several other studies, including one from the Nurses Health Study II that showed that participants who consumed more than eight servings of UPFs daily had about a 50% higher depression risk, compared with those who consumed half that much.

“We found that UPFs in general, and artificial sweeteners and beverages in particular, were associated with increased risk,” said lead investigator Andrew T. Chan, MD, MPH, professor of medicine at Harvard Medical School and chief of the clinical and translational epidemiology unit, Massachusetts General Hospital, both in Boston.

“This was an interesting finding that correlates with data from animal studies that artificial sweeteners may trigger the transmission of particular signaling molecules in the brain that are important for mood,” he told this news organization.

Cognition may also be affected. An analysis of more than 72,000 people in the UK Biobank showed that those who consumed a high levels of UPFs were 50% more likely to develop dementia than those who consumed fewer processed foods. For every 10% increase in UPF consumption, the odds of developing any kind of dementia increased by 25%.

Another study of nearly 11,000 people showed that higher UPF consumption was associated with a significantly faster decline in executive and global cognitive function.
 

Epigenetic changes

While these and other studies suggest a link between UPF consumption and brain health, they are designed to demonstrate correlation. To date, no human study has proven that eating highly processed foods directly causes a decline in mental health or cognition.

Animal studies could provide that causal link. Earlier this year, researchers at Florida State University in Tallahassee reported learning and memory deficits in two groups of male mice that completed a maze test after being fed water mixed with aspartame for about 20% of their adult lives, compared with a group of mice that drank water only. Animals that ingested aspartame could finish the test, but it took them longer, and they needed help.

The amount of aspartame used in the study was just 7% and 15% of the FDA’s recommended maximum intake of aspartame (equivalent to two to four 8-ounce diet sodas daily).

Most intriguing was that offspring of the mice in the aspartame groups demonstrated the same levels of cognitive decline and anxiety as their fathers, even though they had never ingested the artificial sweetener. Researchers theorize that in addition to changes in brain gene expression, aspartame also caused epigenetic changes in germ cells.

“Epigenetic changes in germ cells due to environmental exposures are both good and bad,” lead investigator Pradeep G. Bhide, PhD, professor of developmental neuroscience and director of the Center for Brain Repair at FSU, told this news organization. “They are bad because the next generation is affected. But they’re good because as long as the exposure no longer occurs, 2 or 3 generations later, that’s gone.”

The mice, which lacked taste receptors for aspartame, were the same age and weight in all three groups. Because the only difference was exposure to the artificial sweetener, Dr. Bhide says it suggests a causal link.

“Extrapolation of data from well-controlled laboratory experiments in mice to humans is always risky,” Dr. Bhide said. “The extrapolations give us insights into what could happen rather than what will happen.”
 

Potential mechanisms

Although scientists can’t say for certain how UPFs affect brain health, there are several theories. UPFs may influence an inflammatory immune response, which has been linked to depression and dementia. Consumption of highly processed foods may also disrupt the gut microbiome, Dr. Chan said, which, in turn, may increase depression risk.

“This is an important potential mechanism linking ultraprocessed food to depression since there is emerging evidence that microbes in the gut have been linked with mood through their role in metabolizing and producing proteins that have activity in the brain,” he said.

In addition, with UPFs that contain aspartame, there could be a more direct link to brain function. In the gastrointestinal track, the sweetener is quickly broken down into methanol, aspartic acid, and phenylalanine. All three enter the bloodstream, cross the blood-brain barrier, and are neuroactive.

“Phenylalanine is a precursor for neurotransmitters in the brain, and aspartic acid activates the glutamate excitatory neurotransmitter receptor,” Dr. Bhide said. “The effects we’ve seen could be due to these metabolites that have a direct effect on the brain function.”
 

Time to act?

Some researchers are building a case for classifying UPFs as addictive substances. Others are calling for additional research on UPF safety that is conducted outside the food industry.

There has also been some discussion of placing warning labels on UPFs. However, there is disagreement about what information should be included and how consumers might interpret it. The question of which food products are UPFs and which are not also isn’t settled. The NOVA system may be widely used, but it still has its detractors who believe it misclassifies some healthy foods as ultraprocessed.

Dr. Chan and other experts say the research conducted thus far requires additional corroboration to inform appropriate public health interventions. That would likely take the form of a large, randomized trial with one group of participants eating a healthy diet and the other consuming large amounts of UPFs.

“This type of study is extremely challenging given the number of people that would have to be willing to participate and be willing to eat a very specific diet over a long period of time,” Dr. Chan said. “I am also not sure it would be ethical to assign people to such a diet, given what we already know about the potential health effects of UPFs.”

Dr. Thiagarajan and others have called on funding agencies to direct more grant monies toward studies of UPFs to better understand their effect on brain health.

“Given the magnitude of the problem and given that there is a fair bit of evidence that points to a potential causal link, then we damn well better put money into this and get to the bottom of it,” she said.

Others are looking to the FDA to increase the agency’s scrutiny of food additives. While some additives such as artificial sweeteners have a place in diets of people with diabetes or obesity, Dr. Bhide suggests it may be wise for healthy individuals to reduce their daily intake of UPFs.

“Our data raise this to a different level because of the transgenerational transmission, which has never been shown before,” he said. “We are saying that the FDA should look in preclinical models at germ cells and maybe transgenerational transmission before approving any food additive.”

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

Ultraprocessed foods (UPFs) make up nearly three-quarters of the entire U.S. food supply and about 60% of Americans’ daily caloric intake. A significant body of research has tied consumption of these foods – awash in added sugar, salt, fat, artificial colors, or preservatives – to cancer, diabetes, and heart disease.
 

Now, a growing number of studies also link them to poor brain health, including an increased risk of dementia, depression, and anxiety, and some experts are calling for public health policies aimed at reducing UPF consumption.

But what’s the science behind the link between UPFs and brain health and what does it mean for clinicians and their patients?
 

Under srutiny

A mainstay of diets in countries around the world, UPFs have come under increasing scrutiny because of their link to major diseases. The ingredients in UPFs add little or no nutritional value. Their primary function is to increase a product’s shelf life and palatability. Some recent evidence suggests these foods may be as addictive as tobacco. In addition, two pooled analysis studies using the Yale Food Addiction Scale showed that 14% of adults and 12% of children in the United States may have a UPF addiction.

The most widely used measure of what is, and what is not, a UPF was developed in 2009 by researchers in Brazil. The NOVA food classification system assigns food and beverages to one of four groups:

• Unprocessed and minimally processed foods, such as fruits, vegetables, milk, and meat.
• Processed culinary ingredients, including white sugar, butter, and oils derived from seeds, nuts, and fruits.
• Processed foods, such as tomato paste, bacon, canned tuna, and wine.
• Ultraprocessed foods, such as soda, ice cream, breakfast cereal, and prepackaged meals.

Those sounding the alarm about the potential harmful effects of UPFs are particularly concerned about their consumption by young people. The National Health and Nutrition Examination Survey showed that from 1999 to 2018, highly processed foods accounted for the majority of energy intake in those aged 2-19 years.

One of the most commonly used additives in UPFs, the artificial sweetener aspartame, garnered headlines this summer when the World Health Organization classified it as a likely carcinogen in humans. Aspartame is used in thousands of products, from soda to chewing gum to chewable vitamins.

The U.S. Food and Drug Administration strongly disagreed with the WHO’s position and is sticking by its recommended daily limit of 50 mg/kg of body weight – equivalent to 75 packets of the sweetener Equal – as safe for human consumption.

“Aspartame is one of the most studied food additives in the human food supply,” FDA officials said in a statement, adding that the agency found “significant shortcomings” in the studies the WHO used to justify the new classification. “FDA scientists do not have safety concerns when aspartame is used under the approved conditions.”

Increased attention to consumption of UPFs in general and aspartame particularly in recent years has yielded several studies pointing to the foods’ association with compromised brain health.
 

Link to depression, dementia

A recent report on UPF consumption and mental well-being among nearly 300,000 people across 70 countries showed that 53% of those who consumed UPFs several times a day were distressed or were struggling with their mental well-being, compared with 18% of those who rarely or never consumed UPFs.

Part of the Global Mind Project run by the nonprofit Sapien Labs in Arlington, Va., the report also showed that individuals with the highest rates of UPF consumption reported higher levels of confusion, slowed thinking, unwanted or obsessive thoughts, irritability, and feelings of sadness.

“There seems to be a much broader effect than just depression symptoms,” Tara Thiagarajan, PhD, founder and chief scientist of Sapien Labs and coauthor of the report, said in an interview.

The report, which has not been peer reviewed, comes on the heels of several other studies, including one from the Nurses Health Study II that showed that participants who consumed more than eight servings of UPFs daily had about a 50% higher depression risk, compared with those who consumed half that much.

“We found that UPFs in general, and artificial sweeteners and beverages in particular, were associated with increased risk,” said lead investigator Andrew T. Chan, MD, MPH, professor of medicine at Harvard Medical School and chief of the clinical and translational epidemiology unit, Massachusetts General Hospital, both in Boston.

“This was an interesting finding that correlates with data from animal studies that artificial sweeteners may trigger the transmission of particular signaling molecules in the brain that are important for mood,” he told this news organization.

Cognition may also be affected. An analysis of more than 72,000 people in the UK Biobank showed that those who consumed a high levels of UPFs were 50% more likely to develop dementia than those who consumed fewer processed foods. For every 10% increase in UPF consumption, the odds of developing any kind of dementia increased by 25%.

Another study of nearly 11,000 people showed that higher UPF consumption was associated with a significantly faster decline in executive and global cognitive function.
 

Epigenetic changes

While these and other studies suggest a link between UPF consumption and brain health, they are designed to demonstrate correlation. To date, no human study has proven that eating highly processed foods directly causes a decline in mental health or cognition.

Animal studies could provide that causal link. Earlier this year, researchers at Florida State University in Tallahassee reported learning and memory deficits in two groups of male mice that completed a maze test after being fed water mixed with aspartame for about 20% of their adult lives, compared with a group of mice that drank water only. Animals that ingested aspartame could finish the test, but it took them longer, and they needed help.

The amount of aspartame used in the study was just 7% and 15% of the FDA’s recommended maximum intake of aspartame (equivalent to two to four 8-ounce diet sodas daily).

Most intriguing was that offspring of the mice in the aspartame groups demonstrated the same levels of cognitive decline and anxiety as their fathers, even though they had never ingested the artificial sweetener. Researchers theorize that in addition to changes in brain gene expression, aspartame also caused epigenetic changes in germ cells.

“Epigenetic changes in germ cells due to environmental exposures are both good and bad,” lead investigator Pradeep G. Bhide, PhD, professor of developmental neuroscience and director of the Center for Brain Repair at FSU, told this news organization. “They are bad because the next generation is affected. But they’re good because as long as the exposure no longer occurs, 2 or 3 generations later, that’s gone.”

The mice, which lacked taste receptors for aspartame, were the same age and weight in all three groups. Because the only difference was exposure to the artificial sweetener, Dr. Bhide says it suggests a causal link.

“Extrapolation of data from well-controlled laboratory experiments in mice to humans is always risky,” Dr. Bhide said. “The extrapolations give us insights into what could happen rather than what will happen.”
 

Potential mechanisms

Although scientists can’t say for certain how UPFs affect brain health, there are several theories. UPFs may influence an inflammatory immune response, which has been linked to depression and dementia. Consumption of highly processed foods may also disrupt the gut microbiome, Dr. Chan said, which, in turn, may increase depression risk.

“This is an important potential mechanism linking ultraprocessed food to depression since there is emerging evidence that microbes in the gut have been linked with mood through their role in metabolizing and producing proteins that have activity in the brain,” he said.

In addition, with UPFs that contain aspartame, there could be a more direct link to brain function. In the gastrointestinal track, the sweetener is quickly broken down into methanol, aspartic acid, and phenylalanine. All three enter the bloodstream, cross the blood-brain barrier, and are neuroactive.

“Phenylalanine is a precursor for neurotransmitters in the brain, and aspartic acid activates the glutamate excitatory neurotransmitter receptor,” Dr. Bhide said. “The effects we’ve seen could be due to these metabolites that have a direct effect on the brain function.”
 

Time to act?

Some researchers are building a case for classifying UPFs as addictive substances. Others are calling for additional research on UPF safety that is conducted outside the food industry.

There has also been some discussion of placing warning labels on UPFs. However, there is disagreement about what information should be included and how consumers might interpret it. The question of which food products are UPFs and which are not also isn’t settled. The NOVA system may be widely used, but it still has its detractors who believe it misclassifies some healthy foods as ultraprocessed.

Dr. Chan and other experts say the research conducted thus far requires additional corroboration to inform appropriate public health interventions. That would likely take the form of a large, randomized trial with one group of participants eating a healthy diet and the other consuming large amounts of UPFs.

“This type of study is extremely challenging given the number of people that would have to be willing to participate and be willing to eat a very specific diet over a long period of time,” Dr. Chan said. “I am also not sure it would be ethical to assign people to such a diet, given what we already know about the potential health effects of UPFs.”

Dr. Thiagarajan and others have called on funding agencies to direct more grant monies toward studies of UPFs to better understand their effect on brain health.

“Given the magnitude of the problem and given that there is a fair bit of evidence that points to a potential causal link, then we damn well better put money into this and get to the bottom of it,” she said.

Others are looking to the FDA to increase the agency’s scrutiny of food additives. While some additives such as artificial sweeteners have a place in diets of people with diabetes or obesity, Dr. Bhide suggests it may be wise for healthy individuals to reduce their daily intake of UPFs.

“Our data raise this to a different level because of the transgenerational transmission, which has never been shown before,” he said. “We are saying that the FDA should look in preclinical models at germ cells and maybe transgenerational transmission before approving any food additive.”

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