Megan Brooks

There have been increases in suspected suicidal cannabis exposures reported to U.S. poison control centers over the past 13 years. The increases were notable both during and after the pandemic and were highest among children and female persons.

Investigators examined closed cases of cannabis-related human exposures that were coded as intentional-suspected suicidal.

Of note, there was a statistically significant increase in cannabis poisonings in young children (5-13 years) in 2021, during the pandemic, compared with 2019, a prepandemic year (3.1% vs. 1.3%; P < .001), the researchers report.

“This may speak to both increased access to cannabis as well as poor mental health status during the pandemic period,” study investigator Tracy Klein, PhD, assistant director, Center for Cannabis Policy, Research and Outreach, Washington State University Vancouver, Mount Vista, said in an interview.

The study was published online  in JAMA Network Open.

Reports of intentional poisonings with cannabis increased by roughly 17% annually over the study period. Most cases occurred in recent years and involved individuals aged 14-64 years. Nearly all (96.5%) cases involved more than one substance.

“The resemblance of cannabis edibles, implicated in the majority of poisonings to candy, vitamins, and food products, is a risk to patients across the life span who may not fully understand what they are consuming or how potent it is,” Dr. Klein said in an interview.

Overall, nearly 1 in 10 exposures resulted in death or other major outcomes (life-threatening outcomes or outcomes involving major residual disability or disfigurement). For older adults, 19.4% of exposures led to death or other major harm.

“Elderly patients may also have comorbid conditions and polypharmacy, which contributes to their much more serious outcomes from cannabis poisoning,” Dr. Klein said.

The researchers caution that, owing to the cross-sectional nature of the data, they could not identify a causal association between cannabis use and suicide attempt.

With more states legalizing cannabis use by adults, increases in cannabis use will likely persist.

“It is important to further examine the suspected association between cannabis use and suicidal behaviors and how risks can be prevented or mitigated,” the researchers note.

Dr. Klein encourages health care providers to ask patients whether they are using cannabis and how they obtain and store it.

“As with all medications and substances, storage is a key safety issue that is elicited during a careful history,” said Dr. Klein.

Support for the study was provided in part by funds provided for medical and biological research by the State of Washington Initiative Measure No. 171. Dr. Klein has disclosed no relevant financial relationships.

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

There have been increases in suspected suicidal cannabis exposures reported to U.S. poison control centers over the past 13 years. The increases were notable both during and after the pandemic and were highest among children and female persons.

Investigators examined closed cases of cannabis-related human exposures that were coded as intentional-suspected suicidal.

Of note, there was a statistically significant increase in cannabis poisonings in young children (5-13 years) in 2021, during the pandemic, compared with 2019, a prepandemic year (3.1% vs. 1.3%; P < .001), the researchers report.

“This may speak to both increased access to cannabis as well as poor mental health status during the pandemic period,” study investigator Tracy Klein, PhD, assistant director, Center for Cannabis Policy, Research and Outreach, Washington State University Vancouver, Mount Vista, said in an interview.

The study was published online  in JAMA Network Open.

Reports of intentional poisonings with cannabis increased by roughly 17% annually over the study period. Most cases occurred in recent years and involved individuals aged 14-64 years. Nearly all (96.5%) cases involved more than one substance.

“The resemblance of cannabis edibles, implicated in the majority of poisonings to candy, vitamins, and food products, is a risk to patients across the life span who may not fully understand what they are consuming or how potent it is,” Dr. Klein said in an interview.

Overall, nearly 1 in 10 exposures resulted in death or other major outcomes (life-threatening outcomes or outcomes involving major residual disability or disfigurement). For older adults, 19.4% of exposures led to death or other major harm.

“Elderly patients may also have comorbid conditions and polypharmacy, which contributes to their much more serious outcomes from cannabis poisoning,” Dr. Klein said.

The researchers caution that, owing to the cross-sectional nature of the data, they could not identify a causal association between cannabis use and suicide attempt.

With more states legalizing cannabis use by adults, increases in cannabis use will likely persist.

“It is important to further examine the suspected association between cannabis use and suicidal behaviors and how risks can be prevented or mitigated,” the researchers note.

Dr. Klein encourages health care providers to ask patients whether they are using cannabis and how they obtain and store it.

“As with all medications and substances, storage is a key safety issue that is elicited during a careful history,” said Dr. Klein.

Support for the study was provided in part by funds provided for medical and biological research by the State of Washington Initiative Measure No. 171. Dr. Klein has disclosed no relevant financial relationships.

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

There have been increases in suspected suicidal cannabis exposures reported to U.S. poison control centers over the past 13 years. The increases were notable both during and after the pandemic and were highest among children and female persons.

Investigators examined closed cases of cannabis-related human exposures that were coded as intentional-suspected suicidal.

Of note, there was a statistically significant increase in cannabis poisonings in young children (5-13 years) in 2021, during the pandemic, compared with 2019, a prepandemic year (3.1% vs. 1.3%; P < .001), the researchers report.

“This may speak to both increased access to cannabis as well as poor mental health status during the pandemic period,” study investigator Tracy Klein, PhD, assistant director, Center for Cannabis Policy, Research and Outreach, Washington State University Vancouver, Mount Vista, said in an interview.

The study was published online  in JAMA Network Open.

Reports of intentional poisonings with cannabis increased by roughly 17% annually over the study period. Most cases occurred in recent years and involved individuals aged 14-64 years. Nearly all (96.5%) cases involved more than one substance.

“The resemblance of cannabis edibles, implicated in the majority of poisonings to candy, vitamins, and food products, is a risk to patients across the life span who may not fully understand what they are consuming or how potent it is,” Dr. Klein said in an interview.

Overall, nearly 1 in 10 exposures resulted in death or other major outcomes (life-threatening outcomes or outcomes involving major residual disability or disfigurement). For older adults, 19.4% of exposures led to death or other major harm.

“Elderly patients may also have comorbid conditions and polypharmacy, which contributes to their much more serious outcomes from cannabis poisoning,” Dr. Klein said.

The researchers caution that, owing to the cross-sectional nature of the data, they could not identify a causal association between cannabis use and suicide attempt.

With more states legalizing cannabis use by adults, increases in cannabis use will likely persist.

“It is important to further examine the suspected association between cannabis use and suicidal behaviors and how risks can be prevented or mitigated,” the researchers note.

Dr. Klein encourages health care providers to ask patients whether they are using cannabis and how they obtain and store it.

“As with all medications and substances, storage is a key safety issue that is elicited during a careful history,” said Dr. Klein.

Support for the study was provided in part by funds provided for medical and biological research by the State of Washington Initiative Measure No. 171. Dr. Klein has disclosed no relevant financial relationships.

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

A green adaptation to the traditional Mediterranean diet improves proximal aortic stiffness (PAS), a distinct marker of vascular aging and increased cardiovascular risk, according to an exploratory post hoc analysis of the DIRECT-PLUS randomized clinical trial.

The green Mediterranean diet is distinct from the traditional Mediterranean diet because of its more abundant dietary polyphenols, from green tea and a Wolffia globosa (Mankai) plant green shake, and lower intake of red or processed meat.

NataliTerr/Fotolia.com

Independent of weight loss, the modified green Mediterranean diet regressed PAS by 15%, the traditional Mediterranean diet by 7.3%, and the healthy dietary guideline–based diet by 4.8%, the study team observed.

“The DIRECT-PLUS trial research team was the first to introduce the concept of the green-Mediterranean/high polyphenols diet,” lead researcher Iris Shai, RD, PhD, with Ben-Gurion University of the Negev, Be’er-Sheva, Israel, told this news organization.

This diet promoted “dramatic proximal aortic de-stiffening” as assessed by MRI over 18 months in roughly 300 participants with abdominal obesity/dyslipidemia. “To date, no dietary strategies have been shown to impact vascular aging physiology,” Dr. Shai said.

The analysis was published online in the Journal of the American College of Cardiology.  


 

Not all healthy diets are equal

Of the 294 participants, 281 had valid PAS measurements at baseline. The baseline PAS (6.1 m/s) was similar across intervention groups (P = .20). Increased PAS was associated with aging, hypertension, dyslipidemia, diabetes, and visceral adiposity (P < .05).

After 18 months’ intervention (retention rate 89.8%), all diet groups showed significant PAS reductions: –0.05 m/s with the standard healthy diet (4.8%), –0.08 m/s with the traditional Mediterranean diet (7.3%) and –0.15 the green Mediterranean diet (15%).

In the multivariable model, the green Mediterranean dieters had greater PAS reduction than did the healthy-diet and Mediterranean dieters (P = .003 and P = .032, respectively).

The researchers caution that DIRECT-PLUS had multiple endpoints and this exploratory post hoc analysis might be sensitive to type I statistical error and should be considered “hypothesis-generating.”
 

High-quality study, believable results

Reached for comment on the study, Deepak L. Bhatt, MD, MPH, director of Mount Sinai Heart in New York, said, “There is not a lot of high-quality research on diet, and I would call this high-quality research in as much as they used randomization which most dietary studies don’t do.

“The greener Mediterranean diet seemed to be the best one on the surrogate marker of MRI-defined aortic stiffness,” Dr. Bhatt, professor of cardiovascular medicine, Icahn School of Medicine at Mount Sinai, who wasn’t involved in the study, told this news organization.

“It makes sense that a diet that has more green in it, more polyphenols, would be healthier. This has been shown in some other studies, that these plant-based polyphenols might have various cardiovascular protective aspects to them,” Dr. Bhatt said.

Overall, he said the results are “quite believable, with the caveat that it would be nice to see the results reproduced in a more diverse and larger sample.”

“There is emerging evidence that diets that are higher in fresh fruits and vegetables and whole grains and lower in overall caloric intake, in general, seem to be good diets to reduce cardiovascular risk factors and maybe even reduce actual cardiovascular risk,” Dr. Bhatt added.

The study was funded by grants from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation), the Rosetrees Trust, Israel Ministry of Health, Israel Ministry of Science and Technology, and the California Walnuts Commission. Dr. Shai and Dr. Bhatt have no relevant conflicts of interest.
 

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

A green adaptation to the traditional Mediterranean diet improves proximal aortic stiffness (PAS), a distinct marker of vascular aging and increased cardiovascular risk, according to an exploratory post hoc analysis of the DIRECT-PLUS randomized clinical trial.

The green Mediterranean diet is distinct from the traditional Mediterranean diet because of its more abundant dietary polyphenols, from green tea and a Wolffia globosa (Mankai) plant green shake, and lower intake of red or processed meat.

NataliTerr/Fotolia.com

Independent of weight loss, the modified green Mediterranean diet regressed PAS by 15%, the traditional Mediterranean diet by 7.3%, and the healthy dietary guideline–based diet by 4.8%, the study team observed.

“The DIRECT-PLUS trial research team was the first to introduce the concept of the green-Mediterranean/high polyphenols diet,” lead researcher Iris Shai, RD, PhD, with Ben-Gurion University of the Negev, Be’er-Sheva, Israel, told this news organization.

This diet promoted “dramatic proximal aortic de-stiffening” as assessed by MRI over 18 months in roughly 300 participants with abdominal obesity/dyslipidemia. “To date, no dietary strategies have been shown to impact vascular aging physiology,” Dr. Shai said.

The analysis was published online in the Journal of the American College of Cardiology.  


 

Not all healthy diets are equal

Of the 294 participants, 281 had valid PAS measurements at baseline. The baseline PAS (6.1 m/s) was similar across intervention groups (P = .20). Increased PAS was associated with aging, hypertension, dyslipidemia, diabetes, and visceral adiposity (P < .05).

After 18 months’ intervention (retention rate 89.8%), all diet groups showed significant PAS reductions: –0.05 m/s with the standard healthy diet (4.8%), –0.08 m/s with the traditional Mediterranean diet (7.3%) and –0.15 the green Mediterranean diet (15%).

In the multivariable model, the green Mediterranean dieters had greater PAS reduction than did the healthy-diet and Mediterranean dieters (P = .003 and P = .032, respectively).

The researchers caution that DIRECT-PLUS had multiple endpoints and this exploratory post hoc analysis might be sensitive to type I statistical error and should be considered “hypothesis-generating.”
 

High-quality study, believable results

Reached for comment on the study, Deepak L. Bhatt, MD, MPH, director of Mount Sinai Heart in New York, said, “There is not a lot of high-quality research on diet, and I would call this high-quality research in as much as they used randomization which most dietary studies don’t do.

“The greener Mediterranean diet seemed to be the best one on the surrogate marker of MRI-defined aortic stiffness,” Dr. Bhatt, professor of cardiovascular medicine, Icahn School of Medicine at Mount Sinai, who wasn’t involved in the study, told this news organization.

“It makes sense that a diet that has more green in it, more polyphenols, would be healthier. This has been shown in some other studies, that these plant-based polyphenols might have various cardiovascular protective aspects to them,” Dr. Bhatt said.

Overall, he said the results are “quite believable, with the caveat that it would be nice to see the results reproduced in a more diverse and larger sample.”

“There is emerging evidence that diets that are higher in fresh fruits and vegetables and whole grains and lower in overall caloric intake, in general, seem to be good diets to reduce cardiovascular risk factors and maybe even reduce actual cardiovascular risk,” Dr. Bhatt added.

The study was funded by grants from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation), the Rosetrees Trust, Israel Ministry of Health, Israel Ministry of Science and Technology, and the California Walnuts Commission. Dr. Shai and Dr. Bhatt have no relevant conflicts of interest.
 

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

A green adaptation to the traditional Mediterranean diet improves proximal aortic stiffness (PAS), a distinct marker of vascular aging and increased cardiovascular risk, according to an exploratory post hoc analysis of the DIRECT-PLUS randomized clinical trial.

The green Mediterranean diet is distinct from the traditional Mediterranean diet because of its more abundant dietary polyphenols, from green tea and a Wolffia globosa (Mankai) plant green shake, and lower intake of red or processed meat.

NataliTerr/Fotolia.com

Independent of weight loss, the modified green Mediterranean diet regressed PAS by 15%, the traditional Mediterranean diet by 7.3%, and the healthy dietary guideline–based diet by 4.8%, the study team observed.

“The DIRECT-PLUS trial research team was the first to introduce the concept of the green-Mediterranean/high polyphenols diet,” lead researcher Iris Shai, RD, PhD, with Ben-Gurion University of the Negev, Be’er-Sheva, Israel, told this news organization.

This diet promoted “dramatic proximal aortic de-stiffening” as assessed by MRI over 18 months in roughly 300 participants with abdominal obesity/dyslipidemia. “To date, no dietary strategies have been shown to impact vascular aging physiology,” Dr. Shai said.

The analysis was published online in the Journal of the American College of Cardiology.  


 

Not all healthy diets are equal

Of the 294 participants, 281 had valid PAS measurements at baseline. The baseline PAS (6.1 m/s) was similar across intervention groups (P = .20). Increased PAS was associated with aging, hypertension, dyslipidemia, diabetes, and visceral adiposity (P < .05).

After 18 months’ intervention (retention rate 89.8%), all diet groups showed significant PAS reductions: –0.05 m/s with the standard healthy diet (4.8%), –0.08 m/s with the traditional Mediterranean diet (7.3%) and –0.15 the green Mediterranean diet (15%).

In the multivariable model, the green Mediterranean dieters had greater PAS reduction than did the healthy-diet and Mediterranean dieters (P = .003 and P = .032, respectively).

The researchers caution that DIRECT-PLUS had multiple endpoints and this exploratory post hoc analysis might be sensitive to type I statistical error and should be considered “hypothesis-generating.”
 

High-quality study, believable results

Reached for comment on the study, Deepak L. Bhatt, MD, MPH, director of Mount Sinai Heart in New York, said, “There is not a lot of high-quality research on diet, and I would call this high-quality research in as much as they used randomization which most dietary studies don’t do.

“The greener Mediterranean diet seemed to be the best one on the surrogate marker of MRI-defined aortic stiffness,” Dr. Bhatt, professor of cardiovascular medicine, Icahn School of Medicine at Mount Sinai, who wasn’t involved in the study, told this news organization.

“It makes sense that a diet that has more green in it, more polyphenols, would be healthier. This has been shown in some other studies, that these plant-based polyphenols might have various cardiovascular protective aspects to them,” Dr. Bhatt said.

Overall, he said the results are “quite believable, with the caveat that it would be nice to see the results reproduced in a more diverse and larger sample.”

“There is emerging evidence that diets that are higher in fresh fruits and vegetables and whole grains and lower in overall caloric intake, in general, seem to be good diets to reduce cardiovascular risk factors and maybe even reduce actual cardiovascular risk,” Dr. Bhatt added.

The study was funded by grants from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation), the Rosetrees Trust, Israel Ministry of Health, Israel Ministry of Science and Technology, and the California Walnuts Commission. Dr. Shai and Dr. Bhatt have no relevant conflicts of interest.
 

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

The U.S. Food and Drug Administration has granted breakthrough device designation to the Avantis spinal cord stimulation system (Reach Neuro), which has been shown in early testing to restore arm and hand movement in patients with post-stroke upper limb paresis.

“We are excited about the FDA’s recognition of our technology’s potential to change the lives of millions of people living with disability,” Marc Powell, PhD, CEO, and co-founder of Reach Neuro, said in a company news release.

“The breakthrough device designation is an incredible opportunity to work closely with FDA experts to expedite the clinical translation of the Avantis system,” Dr. Powell added.

Results of the first-in-human study of the system were published in Nature Medicine.

Investigators percutaneously implanted two linear leads in the dorsolateral epidural space targeting neural circuits that control arm and hand muscles in two chronic post-stroke patients.

In both patients, continuous stimulation of the targeted neural circuits led to significant and immediate improvement in arm and hand strength and dexterity. This enabled the patients to perform movements that they couldn’t perform without spinal cord stimulation.

The process also enabled fine motor skills, such as opening a lock and using utensils to eat independently – tasks that one patient had not been able to do for 9 years.

“Having the stimulation working and being able to move my arm/hand again after 9 years was one of the most surreal experiences of my life – it was as if my brain was in control of my arm again. This technology gave me such immense hope that one day I will regain a sense of independence again,” study participant Heather Rendulic said in the news release.

Surprisingly, some improvements were retained up to 1 month after the study, even without stimulation. No serious adverse events were reported.

Nearly three-quarters of patients with stroke experience lasting deficits in motor control of their arm and hand as a result of permanent damage to the brain’s ability to send signals to muscles.

The early results with the Avantis system provide “promising, albeit preliminary, evidence that spinal cord stimulation could be an assistive as well as a restorative approach for upper-limb recovery after stroke,” the study team said in Nature Medicine.

Reach Neuro was founded in 2021 as a spinout company of the University of Pittsburgh and Carnegie Mellon University, also in Pittsburgh, where the technology is currently being tested in a clinical trial funded by the National Institutes of Health.

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

The U.S. Food and Drug Administration has granted breakthrough device designation to the Avantis spinal cord stimulation system (Reach Neuro), which has been shown in early testing to restore arm and hand movement in patients with post-stroke upper limb paresis.

“We are excited about the FDA’s recognition of our technology’s potential to change the lives of millions of people living with disability,” Marc Powell, PhD, CEO, and co-founder of Reach Neuro, said in a company news release.

“The breakthrough device designation is an incredible opportunity to work closely with FDA experts to expedite the clinical translation of the Avantis system,” Dr. Powell added.

Results of the first-in-human study of the system were published in Nature Medicine.

Investigators percutaneously implanted two linear leads in the dorsolateral epidural space targeting neural circuits that control arm and hand muscles in two chronic post-stroke patients.

In both patients, continuous stimulation of the targeted neural circuits led to significant and immediate improvement in arm and hand strength and dexterity. This enabled the patients to perform movements that they couldn’t perform without spinal cord stimulation.

The process also enabled fine motor skills, such as opening a lock and using utensils to eat independently – tasks that one patient had not been able to do for 9 years.

“Having the stimulation working and being able to move my arm/hand again after 9 years was one of the most surreal experiences of my life – it was as if my brain was in control of my arm again. This technology gave me such immense hope that one day I will regain a sense of independence again,” study participant Heather Rendulic said in the news release.

Surprisingly, some improvements were retained up to 1 month after the study, even without stimulation. No serious adverse events were reported.

Nearly three-quarters of patients with stroke experience lasting deficits in motor control of their arm and hand as a result of permanent damage to the brain’s ability to send signals to muscles.

The early results with the Avantis system provide “promising, albeit preliminary, evidence that spinal cord stimulation could be an assistive as well as a restorative approach for upper-limb recovery after stroke,” the study team said in Nature Medicine.

Reach Neuro was founded in 2021 as a spinout company of the University of Pittsburgh and Carnegie Mellon University, also in Pittsburgh, where the technology is currently being tested in a clinical trial funded by the National Institutes of Health.

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

The U.S. Food and Drug Administration has granted breakthrough device designation to the Avantis spinal cord stimulation system (Reach Neuro), which has been shown in early testing to restore arm and hand movement in patients with post-stroke upper limb paresis.

“We are excited about the FDA’s recognition of our technology’s potential to change the lives of millions of people living with disability,” Marc Powell, PhD, CEO, and co-founder of Reach Neuro, said in a company news release.

“The breakthrough device designation is an incredible opportunity to work closely with FDA experts to expedite the clinical translation of the Avantis system,” Dr. Powell added.

Results of the first-in-human study of the system were published in Nature Medicine.

Investigators percutaneously implanted two linear leads in the dorsolateral epidural space targeting neural circuits that control arm and hand muscles in two chronic post-stroke patients.

In both patients, continuous stimulation of the targeted neural circuits led to significant and immediate improvement in arm and hand strength and dexterity. This enabled the patients to perform movements that they couldn’t perform without spinal cord stimulation.

The process also enabled fine motor skills, such as opening a lock and using utensils to eat independently – tasks that one patient had not been able to do for 9 years.

“Having the stimulation working and being able to move my arm/hand again after 9 years was one of the most surreal experiences of my life – it was as if my brain was in control of my arm again. This technology gave me such immense hope that one day I will regain a sense of independence again,” study participant Heather Rendulic said in the news release.

Surprisingly, some improvements were retained up to 1 month after the study, even without stimulation. No serious adverse events were reported.

Nearly three-quarters of patients with stroke experience lasting deficits in motor control of their arm and hand as a result of permanent damage to the brain’s ability to send signals to muscles.

The early results with the Avantis system provide “promising, albeit preliminary, evidence that spinal cord stimulation could be an assistive as well as a restorative approach for upper-limb recovery after stroke,” the study team said in Nature Medicine.

Reach Neuro was founded in 2021 as a spinout company of the University of Pittsburgh and Carnegie Mellon University, also in Pittsburgh, where the technology is currently being tested in a clinical trial funded by the National Institutes of Health.

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

An alpha-synuclein seed amplification assay (αSyn-SAA) accurately identifies people with Parkinson’s disease, as well as those at risk for Parkinson’s disease and those with early, prodromal symptoms, and provides information on molecular subtypes, new research indicates.

“Identifying an effective biomarker for Parkinson’s disease pathology could have profound implications for the way we treat the condition, potentially making it possible to diagnose people earlier, identify the best treatments for different subsets of patients, and speed up clinical trials,” the study’s co-lead author Andrew Siderowf, MD, of the University of Pennsylvania, Philadelphia, said in a news release.

“Our findings suggest that the αSyn-SAA technique is highly accurate at detecting the biomarker for Parkinson’s disease regardless of the clinical features, making it possible to accurately diagnose the disease in patients at early stages,” added co-lead author Luis Concha-Marambio, PhD, director of research and development at Amprion, San Diego, Calif.

The study was published online in The Lancet Neurology.
 

‘New era’ in Parkinson’s disease

The researchers assessed the usefulness of αSyn-SAA in a cross-sectional analysis of 1,123 participants in the Parkinson’s Progression Markers Initiative (PPMI) cohort from 33 participating academic neurology outpatient practices in 12 countries.

The cohort included individuals with sporadic Parkinson’s disease from LRRK2 or GBA variants, healthy controls, individuals with clinical syndromes prodromal to Parkinson’s disease (rapid eye movement sleep behavior disorder [RBD] or hyposmia), and nonmanifesting carriers of LRRK2 and GBA variants. Cerebrospinal fluid (CSF) samples from each participant were analyzed using αSyn-SAA.

Overall, αSyn-SAA differentiated Parkinson’s disease from healthy controls with 87.7% sensitivity and 96.3% specificity.

Sensitivity of the assay varied across subgroups based on genetic and clinical features. Among genetic Parkinson’s disease subgroups, sensitivity was highest for GBA Parkinson’s disease (95.9%), followed by sporadic Parkinson’s disease (93.3%), and lowest for LRRK2 Parkinson’s disease (67.5%). Among clinical features, hyposmia was the most robust predictor of a positive assay result.

Among all Parkinson’s disease cases with hyposmia, the sensitivity of the assay was 97.2%, compared with 63.0% for Parkinson’s disease without olfactory dysfunction. Combining genetic and clinical features, the sensitivity of positive αSyn-SAA in sporadic Parkinson’s disease with olfactory deficit was 98.6%, compared with 78.3% in sporadic Parkinson’s disease without hyposmia. Most prodromal participants (86%) with RBD and hyposmia had positive αSyn-SAA results, indicating they had α-synuclein aggregates despite not yet being diagnosed with Parkinson’s disease.

Among those recruited based on their loss of smell, 89% (16 of 18 participants) had positive αSyn-SAA results. Similarly, in those with RBD, positive αSyn-SAA results were present in 85% of cases (28 of 33). No other clinical features were associated with a positive αSyn-SAA result.

In participants who carried LRRK2 or GBA variants but had no Parkinson’s disease diagnosis or prodromal symptoms (nonmanifesting carriers), 9% (14 of 159) and 7% (11 of 151), respectively, had positive αSyn-SAA results.

To date, this is the largest analysis of α-Syn-SAA for the biochemical diagnosis of Parkinson’s disease, the researchers said.

The results show that the assay classifies people with Parkinson’s disease with “high sensitivity and specificity, provides information about molecular heterogeneity, and detects prodromal individuals before diagnosis,” they wrote.

“These findings suggest a crucial role for the α-synuclein SAA in therapeutic development, both to identify pathologically defined subgroups of people with Parkinson’s disease and to establish biomarker-defined at-risk cohorts,” they added.

Amprion has commercialized the assay (SYNTap test), which can be ordered online.
 

‘Seminal development’

The authors of an accompanying editorial noted the study “lays the foundation for a biological diagnosis” of Parkinson’s disease. “We have entered a new era of biomarker and treatment development for Parkinson’s disease. The possibility of detecting a misfolded α-synuclein, the pathological hallmark of Parkinson’s disease, by employing an SSA, is a seminal development,” wrote Daniela Berg, MD, PhD, and Christine Klein, MD, with University Hospital Schleswig-Holstein, Germany.

“However, to fully leverage the enormous potential of the α-synuclein seed amplification, the test would have to be performed in blood rather than the CSF, a less invasive approach that has proven to be viable,” they added.

“Although the blood-based method needs to be further elaborated for scalability, α-synuclein SAA is a game changer in Parkinson’s disease diagnostics, research, and treatment trials,” they concluded.

The study was funded by The Michael J. Fox Foundation for Parkinson’s Research and a consortium of more than 40 private and philanthropic partners. Dr. Siderowf has declared consulting for Merck and Parkinson Study Group, and receiving honoraria from Bial. A full list of author disclosures is available with the original article. Dr. Berg and Dr. Klein have reported no relevant financial relationships.
 

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

An alpha-synuclein seed amplification assay (αSyn-SAA) accurately identifies people with Parkinson’s disease, as well as those at risk for Parkinson’s disease and those with early, prodromal symptoms, and provides information on molecular subtypes, new research indicates.

“Identifying an effective biomarker for Parkinson’s disease pathology could have profound implications for the way we treat the condition, potentially making it possible to diagnose people earlier, identify the best treatments for different subsets of patients, and speed up clinical trials,” the study’s co-lead author Andrew Siderowf, MD, of the University of Pennsylvania, Philadelphia, said in a news release.

“Our findings suggest that the αSyn-SAA technique is highly accurate at detecting the biomarker for Parkinson’s disease regardless of the clinical features, making it possible to accurately diagnose the disease in patients at early stages,” added co-lead author Luis Concha-Marambio, PhD, director of research and development at Amprion, San Diego, Calif.

The study was published online in The Lancet Neurology.
 

‘New era’ in Parkinson’s disease

The researchers assessed the usefulness of αSyn-SAA in a cross-sectional analysis of 1,123 participants in the Parkinson’s Progression Markers Initiative (PPMI) cohort from 33 participating academic neurology outpatient practices in 12 countries.

The cohort included individuals with sporadic Parkinson’s disease from LRRK2 or GBA variants, healthy controls, individuals with clinical syndromes prodromal to Parkinson’s disease (rapid eye movement sleep behavior disorder [RBD] or hyposmia), and nonmanifesting carriers of LRRK2 and GBA variants. Cerebrospinal fluid (CSF) samples from each participant were analyzed using αSyn-SAA.

Overall, αSyn-SAA differentiated Parkinson’s disease from healthy controls with 87.7% sensitivity and 96.3% specificity.

Sensitivity of the assay varied across subgroups based on genetic and clinical features. Among genetic Parkinson’s disease subgroups, sensitivity was highest for GBA Parkinson’s disease (95.9%), followed by sporadic Parkinson’s disease (93.3%), and lowest for LRRK2 Parkinson’s disease (67.5%). Among clinical features, hyposmia was the most robust predictor of a positive assay result.

Among all Parkinson’s disease cases with hyposmia, the sensitivity of the assay was 97.2%, compared with 63.0% for Parkinson’s disease without olfactory dysfunction. Combining genetic and clinical features, the sensitivity of positive αSyn-SAA in sporadic Parkinson’s disease with olfactory deficit was 98.6%, compared with 78.3% in sporadic Parkinson’s disease without hyposmia. Most prodromal participants (86%) with RBD and hyposmia had positive αSyn-SAA results, indicating they had α-synuclein aggregates despite not yet being diagnosed with Parkinson’s disease.

Among those recruited based on their loss of smell, 89% (16 of 18 participants) had positive αSyn-SAA results. Similarly, in those with RBD, positive αSyn-SAA results were present in 85% of cases (28 of 33). No other clinical features were associated with a positive αSyn-SAA result.

In participants who carried LRRK2 or GBA variants but had no Parkinson’s disease diagnosis or prodromal symptoms (nonmanifesting carriers), 9% (14 of 159) and 7% (11 of 151), respectively, had positive αSyn-SAA results.

To date, this is the largest analysis of α-Syn-SAA for the biochemical diagnosis of Parkinson’s disease, the researchers said.

The results show that the assay classifies people with Parkinson’s disease with “high sensitivity and specificity, provides information about molecular heterogeneity, and detects prodromal individuals before diagnosis,” they wrote.

“These findings suggest a crucial role for the α-synuclein SAA in therapeutic development, both to identify pathologically defined subgroups of people with Parkinson’s disease and to establish biomarker-defined at-risk cohorts,” they added.

Amprion has commercialized the assay (SYNTap test), which can be ordered online.
 

‘Seminal development’

The authors of an accompanying editorial noted the study “lays the foundation for a biological diagnosis” of Parkinson’s disease. “We have entered a new era of biomarker and treatment development for Parkinson’s disease. The possibility of detecting a misfolded α-synuclein, the pathological hallmark of Parkinson’s disease, by employing an SSA, is a seminal development,” wrote Daniela Berg, MD, PhD, and Christine Klein, MD, with University Hospital Schleswig-Holstein, Germany.

“However, to fully leverage the enormous potential of the α-synuclein seed amplification, the test would have to be performed in blood rather than the CSF, a less invasive approach that has proven to be viable,” they added.

“Although the blood-based method needs to be further elaborated for scalability, α-synuclein SAA is a game changer in Parkinson’s disease diagnostics, research, and treatment trials,” they concluded.

The study was funded by The Michael J. Fox Foundation for Parkinson’s Research and a consortium of more than 40 private and philanthropic partners. Dr. Siderowf has declared consulting for Merck and Parkinson Study Group, and receiving honoraria from Bial. A full list of author disclosures is available with the original article. Dr. Berg and Dr. Klein have reported no relevant financial relationships.
 

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

An alpha-synuclein seed amplification assay (αSyn-SAA) accurately identifies people with Parkinson’s disease, as well as those at risk for Parkinson’s disease and those with early, prodromal symptoms, and provides information on molecular subtypes, new research indicates.

“Identifying an effective biomarker for Parkinson’s disease pathology could have profound implications for the way we treat the condition, potentially making it possible to diagnose people earlier, identify the best treatments for different subsets of patients, and speed up clinical trials,” the study’s co-lead author Andrew Siderowf, MD, of the University of Pennsylvania, Philadelphia, said in a news release.

“Our findings suggest that the αSyn-SAA technique is highly accurate at detecting the biomarker for Parkinson’s disease regardless of the clinical features, making it possible to accurately diagnose the disease in patients at early stages,” added co-lead author Luis Concha-Marambio, PhD, director of research and development at Amprion, San Diego, Calif.

The study was published online in The Lancet Neurology.
 

‘New era’ in Parkinson’s disease

The researchers assessed the usefulness of αSyn-SAA in a cross-sectional analysis of 1,123 participants in the Parkinson’s Progression Markers Initiative (PPMI) cohort from 33 participating academic neurology outpatient practices in 12 countries.

The cohort included individuals with sporadic Parkinson’s disease from LRRK2 or GBA variants, healthy controls, individuals with clinical syndromes prodromal to Parkinson’s disease (rapid eye movement sleep behavior disorder [RBD] or hyposmia), and nonmanifesting carriers of LRRK2 and GBA variants. Cerebrospinal fluid (CSF) samples from each participant were analyzed using αSyn-SAA.

Overall, αSyn-SAA differentiated Parkinson’s disease from healthy controls with 87.7% sensitivity and 96.3% specificity.

Sensitivity of the assay varied across subgroups based on genetic and clinical features. Among genetic Parkinson’s disease subgroups, sensitivity was highest for GBA Parkinson’s disease (95.9%), followed by sporadic Parkinson’s disease (93.3%), and lowest for LRRK2 Parkinson’s disease (67.5%). Among clinical features, hyposmia was the most robust predictor of a positive assay result.

Among all Parkinson’s disease cases with hyposmia, the sensitivity of the assay was 97.2%, compared with 63.0% for Parkinson’s disease without olfactory dysfunction. Combining genetic and clinical features, the sensitivity of positive αSyn-SAA in sporadic Parkinson’s disease with olfactory deficit was 98.6%, compared with 78.3% in sporadic Parkinson’s disease without hyposmia. Most prodromal participants (86%) with RBD and hyposmia had positive αSyn-SAA results, indicating they had α-synuclein aggregates despite not yet being diagnosed with Parkinson’s disease.

Among those recruited based on their loss of smell, 89% (16 of 18 participants) had positive αSyn-SAA results. Similarly, in those with RBD, positive αSyn-SAA results were present in 85% of cases (28 of 33). No other clinical features were associated with a positive αSyn-SAA result.

In participants who carried LRRK2 or GBA variants but had no Parkinson’s disease diagnosis or prodromal symptoms (nonmanifesting carriers), 9% (14 of 159) and 7% (11 of 151), respectively, had positive αSyn-SAA results.

To date, this is the largest analysis of α-Syn-SAA for the biochemical diagnosis of Parkinson’s disease, the researchers said.

The results show that the assay classifies people with Parkinson’s disease with “high sensitivity and specificity, provides information about molecular heterogeneity, and detects prodromal individuals before diagnosis,” they wrote.

“These findings suggest a crucial role for the α-synuclein SAA in therapeutic development, both to identify pathologically defined subgroups of people with Parkinson’s disease and to establish biomarker-defined at-risk cohorts,” they added.

Amprion has commercialized the assay (SYNTap test), which can be ordered online.
 

‘Seminal development’

The authors of an accompanying editorial noted the study “lays the foundation for a biological diagnosis” of Parkinson’s disease. “We have entered a new era of biomarker and treatment development for Parkinson’s disease. The possibility of detecting a misfolded α-synuclein, the pathological hallmark of Parkinson’s disease, by employing an SSA, is a seminal development,” wrote Daniela Berg, MD, PhD, and Christine Klein, MD, with University Hospital Schleswig-Holstein, Germany.

“However, to fully leverage the enormous potential of the α-synuclein seed amplification, the test would have to be performed in blood rather than the CSF, a less invasive approach that has proven to be viable,” they added.

“Although the blood-based method needs to be further elaborated for scalability, α-synuclein SAA is a game changer in Parkinson’s disease diagnostics, research, and treatment trials,” they concluded.

The study was funded by The Michael J. Fox Foundation for Parkinson’s Research and a consortium of more than 40 private and philanthropic partners. Dr. Siderowf has declared consulting for Merck and Parkinson Study Group, and receiving honoraria from Bial. A full list of author disclosures is available with the original article. Dr. Berg and Dr. Klein have reported no relevant financial relationships.
 

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

Findings from a landmark clinical trial in pediatric Crohn’s disease show a clear benefit of adding methotrexate to treatment with the tumor necrosis factor inhibitor (TNFi) adalimumab (Humira) but not to infliximab therapy.

Children initiating treatment with adalimumab plus a low dose of methotrexate experienced a twofold reduction in treatment failure, note the authors of the largest, double-blind, randomized trial to date in pediatric Crohn’s disease. However, children initiating infliximab, another TNFi, had similar outcomes with or without methotrexate.

“We believe these results are practice-changing,” said principal investigator Michael Kappelman, MD, MPH, professor of pediatrics at University of North Carolina, Chapel Hill.

All patients with pediatric Crohn’s disease starting on adalimumab and their parents should be informed that combining the drug with low-dose oral methotrexate improves treatment effectiveness, he said.

“Those without contraindications should be offered combination therapy, and shared decision-making should be incorporated into final treatment decisions. In contrast, most patients starting infliximab are not likely to experience added benefits from low-dose oral methotrexate,” Dr. Kappelman added.

The study was published online  in Gastroenterology and will be presented in early May at Digestive Disease Week® 2023.

Impactful study

“This is an important study, published in a very high-ranking journal, that will have a huge impact on how we practice,” said Jacob Kurowski, MD, department of pediatric gastroenterology, hepatology, and nutrition, Cleveland Clinic Children’s, who wasn’t involved in the study.

Treatment with a TNFi, including infliximab and adalimumab, is a mainstay of pediatric Crohn’s disease therapy. However, not all patients achieve remission, and many lose response over time.

The current trial compared the effectiveness and safety of adding a low-dose of oral methotrexate to adalimumab or infliximab versus TNFi therapy alone in 297 children with Crohn’s disease.

The mean age was 13.9 years, and about two-thirds were boys. None had a prior history of TNFi therapy.

Participants initiating infliximab or adalimumab were randomly allocated (1:1) to oral methotrexate or placebo. Of them, 110 infliximab initiators and 46 adalimumab initiators received methotrexate, while 102 infliximab initiators and 39 adalimumab initiators were given placebo. Methotrexate was administered as a weekly dose of 15 mg for children weighing 40 kg or more, 12.5 mg for children 30 to less than 40 kg, and 10 mg for children 20 to less than 30 kg. All participants received pretreatment with ondansetron 4 mg (or placebo) to prevent nausea and folic acid (1 mg per day). Participants were followed for 12-36 months.

The primary outcome was a failure to achieve or maintain steroid-free remission defined by occurrence of any of the following.

• Short Pediatric Crohn’s Disease Activity Index score of less than 15 by week 26
• Failure to complete a steroid taper by week 16
• SPCDAI score of 15 or higher as a result of active Crohn’s disease at two or more consecutive visits beyond week 26
• Hospitalization or surgery for Crohn’s disease beyond week 26
• Use of corticosteroids for Crohn’s disease for 10 or more weeks cumulatively beyond week 16
• Discontinuation of anti-TNF and/or study drug for lack of effectiveness or toxicity

Overall, 88 of 297 children (30%) experienced treatment failure, including 57 of 212 (27%) on infliximab and 31 of 85 (36%) on adalimumab. Overall, 40 of 156 children (26%) on combination therapy and 48 of 141 (34%) on monotherapy experienced treatment failure.

Kaplan Meier analysis of the overall population showed a nonsignificant trend toward lower event rates with combination therapy (hazard ratio, 0.69; 95% confidence interval, 0.45-1.05; P = .08).

After stratification by TNFi, there was no difference in time to treatment failure among infliximab initiators between combination and monotherapy (HR, 0.93; 95% CI, 0.55-1.56; P = .78). In contrast, among adalimumab initiators, combination therapy was significantly associated with a longer time to treatment failure (HR, 0.40; 95% CI, 0.19-0.81; P = .01).

There was a nonsignificant trend toward lower development of anti-drug antibodies with combination therapy (risk ratio, 0.72 with infliximab and 0.71 with adalimumab). This trend is in line with adult studies and adds substantially to the pediatric literature on this topic, the researchers noted.

No differences in patient-reported outcomes were observed. There were slightly more adverse events with combination therapy, as expected, but fewer serious adverse events.
 

Shared decision-making

Dr. Kappelman noted that the study was not designed to answer the question of which is better – adalimumab plus methotrexate or infliximab alone. “This is an area for future research. At this point, we believe it is an individualized decision, and appropriate counseling is needed to support shared decision-making,” he said.

Nor was the trial designed to evaluate the role of proactive therapeutic drug monitoring. However, proactive TDM is endorsed in the ImproveCareNow Model IBD Care guidelines and was considered standard of care at the 35 study sites.

The findings “suggest strong consideration of using combination therapy for pediatric Crohn’s disease patients initiating adalimumab but not infliximab,” Dr. Kappelman and colleagues said.

“Dissemination and implementation of these findings should lead to improved outcomes in this patient population, including consideration of de-implementation of combination therapy in infliximab treated patients,” they added.

The decision about which approach to use is still very dependent on patients and their providers, Dr. Kurowski said.

“The study shows that you can safely use infliximab as monotherapy, with low risk of antibody formation, while utilizing proactive therapeutic drug monitoring and dose optimization. The study also shows that adalimumab in combination with low-dose methotrexate can be strongly considered when needed.”

The researchers’ standardization of methotrexate doses by weight “is another significant contribution and provides a guide for clinicians,” Dr. Kurowski added.

The study was funded by grants from the Patient-Centered Outcomes Research Institute, the Helmsley Charitable Trust, and National Institute of Arthritis and Musculoskeletal and Skin Diseases. Dr. Kappelman has consulted for AbbVie, Janssen, Pfizer, Takeda, and Lilly; holds shares in Johnson & Johnson; and has received research support from Pfizer, Takeda, Janssen, AbbVie, Lilly, Genentech, Boehringer Ingelheim, Bristol-Myers Squibb, Celtrion, and Arena Pharmaceuticals. Dr. Kurowski reports no relevant financial relationships.

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

Findings from a landmark clinical trial in pediatric Crohn’s disease show a clear benefit of adding methotrexate to treatment with the tumor necrosis factor inhibitor (TNFi) adalimumab (Humira) but not to infliximab therapy.

Children initiating treatment with adalimumab plus a low dose of methotrexate experienced a twofold reduction in treatment failure, note the authors of the largest, double-blind, randomized trial to date in pediatric Crohn’s disease. However, children initiating infliximab, another TNFi, had similar outcomes with or without methotrexate.

“We believe these results are practice-changing,” said principal investigator Michael Kappelman, MD, MPH, professor of pediatrics at University of North Carolina, Chapel Hill.

All patients with pediatric Crohn’s disease starting on adalimumab and their parents should be informed that combining the drug with low-dose oral methotrexate improves treatment effectiveness, he said.

“Those without contraindications should be offered combination therapy, and shared decision-making should be incorporated into final treatment decisions. In contrast, most patients starting infliximab are not likely to experience added benefits from low-dose oral methotrexate,” Dr. Kappelman added.

The study was published online  in Gastroenterology and will be presented in early May at Digestive Disease Week® 2023.

Impactful study

“This is an important study, published in a very high-ranking journal, that will have a huge impact on how we practice,” said Jacob Kurowski, MD, department of pediatric gastroenterology, hepatology, and nutrition, Cleveland Clinic Children’s, who wasn’t involved in the study.

Treatment with a TNFi, including infliximab and adalimumab, is a mainstay of pediatric Crohn’s disease therapy. However, not all patients achieve remission, and many lose response over time.

The current trial compared the effectiveness and safety of adding a low-dose of oral methotrexate to adalimumab or infliximab versus TNFi therapy alone in 297 children with Crohn’s disease.

The mean age was 13.9 years, and about two-thirds were boys. None had a prior history of TNFi therapy.

Participants initiating infliximab or adalimumab were randomly allocated (1:1) to oral methotrexate or placebo. Of them, 110 infliximab initiators and 46 adalimumab initiators received methotrexate, while 102 infliximab initiators and 39 adalimumab initiators were given placebo. Methotrexate was administered as a weekly dose of 15 mg for children weighing 40 kg or more, 12.5 mg for children 30 to less than 40 kg, and 10 mg for children 20 to less than 30 kg. All participants received pretreatment with ondansetron 4 mg (or placebo) to prevent nausea and folic acid (1 mg per day). Participants were followed for 12-36 months.

The primary outcome was a failure to achieve or maintain steroid-free remission defined by occurrence of any of the following.

• Short Pediatric Crohn’s Disease Activity Index score of less than 15 by week 26
• Failure to complete a steroid taper by week 16
• SPCDAI score of 15 or higher as a result of active Crohn’s disease at two or more consecutive visits beyond week 26
• Hospitalization or surgery for Crohn’s disease beyond week 26
• Use of corticosteroids for Crohn’s disease for 10 or more weeks cumulatively beyond week 16
• Discontinuation of anti-TNF and/or study drug for lack of effectiveness or toxicity

Overall, 88 of 297 children (30%) experienced treatment failure, including 57 of 212 (27%) on infliximab and 31 of 85 (36%) on adalimumab. Overall, 40 of 156 children (26%) on combination therapy and 48 of 141 (34%) on monotherapy experienced treatment failure.

Kaplan Meier analysis of the overall population showed a nonsignificant trend toward lower event rates with combination therapy (hazard ratio, 0.69; 95% confidence interval, 0.45-1.05; P = .08).

After stratification by TNFi, there was no difference in time to treatment failure among infliximab initiators between combination and monotherapy (HR, 0.93; 95% CI, 0.55-1.56; P = .78). In contrast, among adalimumab initiators, combination therapy was significantly associated with a longer time to treatment failure (HR, 0.40; 95% CI, 0.19-0.81; P = .01).

There was a nonsignificant trend toward lower development of anti-drug antibodies with combination therapy (risk ratio, 0.72 with infliximab and 0.71 with adalimumab). This trend is in line with adult studies and adds substantially to the pediatric literature on this topic, the researchers noted.

No differences in patient-reported outcomes were observed. There were slightly more adverse events with combination therapy, as expected, but fewer serious adverse events.
 

Shared decision-making

Dr. Kappelman noted that the study was not designed to answer the question of which is better – adalimumab plus methotrexate or infliximab alone. “This is an area for future research. At this point, we believe it is an individualized decision, and appropriate counseling is needed to support shared decision-making,” he said.

Nor was the trial designed to evaluate the role of proactive therapeutic drug monitoring. However, proactive TDM is endorsed in the ImproveCareNow Model IBD Care guidelines and was considered standard of care at the 35 study sites.

The findings “suggest strong consideration of using combination therapy for pediatric Crohn’s disease patients initiating adalimumab but not infliximab,” Dr. Kappelman and colleagues said.

“Dissemination and implementation of these findings should lead to improved outcomes in this patient population, including consideration of de-implementation of combination therapy in infliximab treated patients,” they added.

The decision about which approach to use is still very dependent on patients and their providers, Dr. Kurowski said.

“The study shows that you can safely use infliximab as monotherapy, with low risk of antibody formation, while utilizing proactive therapeutic drug monitoring and dose optimization. The study also shows that adalimumab in combination with low-dose methotrexate can be strongly considered when needed.”

The researchers’ standardization of methotrexate doses by weight “is another significant contribution and provides a guide for clinicians,” Dr. Kurowski added.

The study was funded by grants from the Patient-Centered Outcomes Research Institute, the Helmsley Charitable Trust, and National Institute of Arthritis and Musculoskeletal and Skin Diseases. Dr. Kappelman has consulted for AbbVie, Janssen, Pfizer, Takeda, and Lilly; holds shares in Johnson & Johnson; and has received research support from Pfizer, Takeda, Janssen, AbbVie, Lilly, Genentech, Boehringer Ingelheim, Bristol-Myers Squibb, Celtrion, and Arena Pharmaceuticals. Dr. Kurowski reports no relevant financial relationships.

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

Findings from a landmark clinical trial in pediatric Crohn’s disease show a clear benefit of adding methotrexate to treatment with the tumor necrosis factor inhibitor (TNFi) adalimumab (Humira) but not to infliximab therapy.

Children initiating treatment with adalimumab plus a low dose of methotrexate experienced a twofold reduction in treatment failure, note the authors of the largest, double-blind, randomized trial to date in pediatric Crohn’s disease. However, children initiating infliximab, another TNFi, had similar outcomes with or without methotrexate.

“We believe these results are practice-changing,” said principal investigator Michael Kappelman, MD, MPH, professor of pediatrics at University of North Carolina, Chapel Hill.

All patients with pediatric Crohn’s disease starting on adalimumab and their parents should be informed that combining the drug with low-dose oral methotrexate improves treatment effectiveness, he said.

“Those without contraindications should be offered combination therapy, and shared decision-making should be incorporated into final treatment decisions. In contrast, most patients starting infliximab are not likely to experience added benefits from low-dose oral methotrexate,” Dr. Kappelman added.

The study was published online  in Gastroenterology and will be presented in early May at Digestive Disease Week® 2023.

Impactful study

“This is an important study, published in a very high-ranking journal, that will have a huge impact on how we practice,” said Jacob Kurowski, MD, department of pediatric gastroenterology, hepatology, and nutrition, Cleveland Clinic Children’s, who wasn’t involved in the study.

Treatment with a TNFi, including infliximab and adalimumab, is a mainstay of pediatric Crohn’s disease therapy. However, not all patients achieve remission, and many lose response over time.

The current trial compared the effectiveness and safety of adding a low-dose of oral methotrexate to adalimumab or infliximab versus TNFi therapy alone in 297 children with Crohn’s disease.

The mean age was 13.9 years, and about two-thirds were boys. None had a prior history of TNFi therapy.

Participants initiating infliximab or adalimumab were randomly allocated (1:1) to oral methotrexate or placebo. Of them, 110 infliximab initiators and 46 adalimumab initiators received methotrexate, while 102 infliximab initiators and 39 adalimumab initiators were given placebo. Methotrexate was administered as a weekly dose of 15 mg for children weighing 40 kg or more, 12.5 mg for children 30 to less than 40 kg, and 10 mg for children 20 to less than 30 kg. All participants received pretreatment with ondansetron 4 mg (or placebo) to prevent nausea and folic acid (1 mg per day). Participants were followed for 12-36 months.

The primary outcome was a failure to achieve or maintain steroid-free remission defined by occurrence of any of the following.

• Short Pediatric Crohn’s Disease Activity Index score of less than 15 by week 26
• Failure to complete a steroid taper by week 16
• SPCDAI score of 15 or higher as a result of active Crohn’s disease at two or more consecutive visits beyond week 26
• Hospitalization or surgery for Crohn’s disease beyond week 26
• Use of corticosteroids for Crohn’s disease for 10 or more weeks cumulatively beyond week 16
• Discontinuation of anti-TNF and/or study drug for lack of effectiveness or toxicity

Overall, 88 of 297 children (30%) experienced treatment failure, including 57 of 212 (27%) on infliximab and 31 of 85 (36%) on adalimumab. Overall, 40 of 156 children (26%) on combination therapy and 48 of 141 (34%) on monotherapy experienced treatment failure.

Kaplan Meier analysis of the overall population showed a nonsignificant trend toward lower event rates with combination therapy (hazard ratio, 0.69; 95% confidence interval, 0.45-1.05; P = .08).

After stratification by TNFi, there was no difference in time to treatment failure among infliximab initiators between combination and monotherapy (HR, 0.93; 95% CI, 0.55-1.56; P = .78). In contrast, among adalimumab initiators, combination therapy was significantly associated with a longer time to treatment failure (HR, 0.40; 95% CI, 0.19-0.81; P = .01).

There was a nonsignificant trend toward lower development of anti-drug antibodies with combination therapy (risk ratio, 0.72 with infliximab and 0.71 with adalimumab). This trend is in line with adult studies and adds substantially to the pediatric literature on this topic, the researchers noted.

No differences in patient-reported outcomes were observed. There were slightly more adverse events with combination therapy, as expected, but fewer serious adverse events.
 

Shared decision-making

Dr. Kappelman noted that the study was not designed to answer the question of which is better – adalimumab plus methotrexate or infliximab alone. “This is an area for future research. At this point, we believe it is an individualized decision, and appropriate counseling is needed to support shared decision-making,” he said.

Nor was the trial designed to evaluate the role of proactive therapeutic drug monitoring. However, proactive TDM is endorsed in the ImproveCareNow Model IBD Care guidelines and was considered standard of care at the 35 study sites.

The findings “suggest strong consideration of using combination therapy for pediatric Crohn’s disease patients initiating adalimumab but not infliximab,” Dr. Kappelman and colleagues said.

“Dissemination and implementation of these findings should lead to improved outcomes in this patient population, including consideration of de-implementation of combination therapy in infliximab treated patients,” they added.

The decision about which approach to use is still very dependent on patients and their providers, Dr. Kurowski said.

“The study shows that you can safely use infliximab as monotherapy, with low risk of antibody formation, while utilizing proactive therapeutic drug monitoring and dose optimization. The study also shows that adalimumab in combination with low-dose methotrexate can be strongly considered when needed.”

The researchers’ standardization of methotrexate doses by weight “is another significant contribution and provides a guide for clinicians,” Dr. Kurowski added.

The study was funded by grants from the Patient-Centered Outcomes Research Institute, the Helmsley Charitable Trust, and National Institute of Arthritis and Musculoskeletal and Skin Diseases. Dr. Kappelman has consulted for AbbVie, Janssen, Pfizer, Takeda, and Lilly; holds shares in Johnson & Johnson; and has received research support from Pfizer, Takeda, Janssen, AbbVie, Lilly, Genentech, Boehringer Ingelheim, Bristol-Myers Squibb, Celtrion, and Arena Pharmaceuticals. Dr. Kurowski reports no relevant financial relationships.

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

Electroconvulsive therapy appears to have a small advantage over ketamine for improving depressive symptoms in adults with a major depressive episode, results of a new review show.

“Although ECT is superior to ketamine for patients with a major depressive episode, our findings suggest that the therapeutic advantage may be smaller than what was demonstrated in prior analyses,” first author Vikas Menon, MD, department of psychiatry, Jawaharlal Institute of Postgraduate Medical Education & Research, Puducherry, India, told this news organization.

“This supports a recommendation for a trial of ketamine before a trial of ECT for patients with MDE, though this recommendation is limited by the small size and number of existing trials,” Dr. Menon said.

The study was published online in JAMA Psychiatry.
 

Questions remain

The meta-analysis included five trials of 278 adults with MDE (141 treated with ketamine and 137 with ECT).

In the main analysis, posttreatment depression ratings showed a trend for lower scores with ECT, compared with ketamine (standardized mean difference, −0.39; 95% confidence interval, −0.81 to 0.02). 

In a sensitivity analysis of the two methodologically stronger trials, ECT was superior to ketamine (pooled SMD, −0.45; 95% CI, −0.75 to −0.14).

ECT was also superior to ketamine in terms of response rates (risk ratio, 1.27; 95% CI, 1.06-1.53) and remission rates (RR, 1.43; 95% CI, 1.12-1.82).

There were no significant between-group differences for number of sessions to response and remission and for cognitive outcomes.

Key limitations of the analysis were the small number of studies with limited sample sizes and a high risk of bias in all trials.

“There is a need for more comparative studies with adequate sample size in non-inferiority designs, examining a wider range of benefits and side effects and followed up for longer durations to answer clinically relevant questions about the nature and durability of observed benefits with ketamine,” said Dr. Menon.

“In patients with MDE for whom the administration of ECT is limited by restricted availability of the treatment, concerns about its cognitive adverse effects, negative patient attitudes, and other issues, clinicians may consider a trial of ketamine,” he added.
 

‘Important research’

Several experts offered perspective on the analysis in a statement from the U.K.-based nonprofit Science Media Centre, which was not involved with the conduct of this study.

Rupert McShane, MD, psychiatrist at the University of Oxford (England), noted that ECT and ketamine are both “potent” treatments for depression, and this meta-analysis shows that they are, “broadly speaking, equally as good as each other with perhaps a slight advantage for ECT.”

“Whether or not there is a difference depends on exactly how you define it and how you cut the data. Despite the slight advantage for ECT in this analysis, the authors support using ketamine before ECT, especially in patients who are worried about the cognitive risks of ECT. This seems sensible,” Dr. McShane said.

Allan Young, MBChB, clinical psychiatrist at King’s College London, noted that both ketamine and ECT have been shown to help some patients with treatment-resistant depression.

“Clearly the relative benefits of these two treatments need to be understood better, but this review of the existing literature suggests that ECT may benefit some more than ketamine,” said Mr. Young.

“There is evidence that ketamine with ECT may add little extra benefit, but much more work needs to be done to fully understand how these treatments fit best into the treatment pathway for major depressive episodes. However, based on this evidence, ECT clearly still merits a place in the treatment pathway,” Mr. Young added.

George Kirov, PhD, clinical professor, division of psychological medicine and clinical neurosciences, Cardiff University (England), said while the study is conducted well, most of the evidence is coming from one large trial conducted in Sweden.

“The other studies add small numbers of patients and the authors even present a sensitivity analysis after removing studies of poor quality, thus leaving only two studies and exposing even further the dependence of the results on one single study,” Dr. Kirov noted. 

“The small studies should not be blamed for their size, as this is very difficult research to perform. On the other hand, the trends were in the same direction,” he added.

With those caveats in mind, Dr. Kirov said he still thinks this is “important research. It establishes the superiority of ECT against an active comparator (ketamine) which is very popular now and accepted to be quite effective.”

The study had no specific funding. Dr. Menon reports no relevant financial relationships. Dr. McShane is former chair of the ECT and Related Treatments Committee, Royal College of Psychiatrists and runs a ketamine clinic and an ECT service. Mr. Young has received compensation for lectures and advisory boards for AstraZeneca, Eli Lilly, Lundbeck, Sunovion, Servier, Livanova, Janssen, Allergan, Bionomics, Sumitomo Dainippon Pharma, COMPASS, and Sage, and has served as principal investigator on a trial of intranasal esketamine in treatment-resistant depression. Dr. Kirov has no interest to declare other than running the ECT service in Cardiff.

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

Electroconvulsive therapy appears to have a small advantage over ketamine for improving depressive symptoms in adults with a major depressive episode, results of a new review show.

“Although ECT is superior to ketamine for patients with a major depressive episode, our findings suggest that the therapeutic advantage may be smaller than what was demonstrated in prior analyses,” first author Vikas Menon, MD, department of psychiatry, Jawaharlal Institute of Postgraduate Medical Education & Research, Puducherry, India, told this news organization.

“This supports a recommendation for a trial of ketamine before a trial of ECT for patients with MDE, though this recommendation is limited by the small size and number of existing trials,” Dr. Menon said.

The study was published online in JAMA Psychiatry.
 

Questions remain

The meta-analysis included five trials of 278 adults with MDE (141 treated with ketamine and 137 with ECT).

In the main analysis, posttreatment depression ratings showed a trend for lower scores with ECT, compared with ketamine (standardized mean difference, −0.39; 95% confidence interval, −0.81 to 0.02). 

In a sensitivity analysis of the two methodologically stronger trials, ECT was superior to ketamine (pooled SMD, −0.45; 95% CI, −0.75 to −0.14).

ECT was also superior to ketamine in terms of response rates (risk ratio, 1.27; 95% CI, 1.06-1.53) and remission rates (RR, 1.43; 95% CI, 1.12-1.82).

There were no significant between-group differences for number of sessions to response and remission and for cognitive outcomes.

Key limitations of the analysis were the small number of studies with limited sample sizes and a high risk of bias in all trials.

“There is a need for more comparative studies with adequate sample size in non-inferiority designs, examining a wider range of benefits and side effects and followed up for longer durations to answer clinically relevant questions about the nature and durability of observed benefits with ketamine,” said Dr. Menon.

“In patients with MDE for whom the administration of ECT is limited by restricted availability of the treatment, concerns about its cognitive adverse effects, negative patient attitudes, and other issues, clinicians may consider a trial of ketamine,” he added.
 

‘Important research’

Several experts offered perspective on the analysis in a statement from the U.K.-based nonprofit Science Media Centre, which was not involved with the conduct of this study.

Rupert McShane, MD, psychiatrist at the University of Oxford (England), noted that ECT and ketamine are both “potent” treatments for depression, and this meta-analysis shows that they are, “broadly speaking, equally as good as each other with perhaps a slight advantage for ECT.”

“Whether or not there is a difference depends on exactly how you define it and how you cut the data. Despite the slight advantage for ECT in this analysis, the authors support using ketamine before ECT, especially in patients who are worried about the cognitive risks of ECT. This seems sensible,” Dr. McShane said.

Allan Young, MBChB, clinical psychiatrist at King’s College London, noted that both ketamine and ECT have been shown to help some patients with treatment-resistant depression.

“Clearly the relative benefits of these two treatments need to be understood better, but this review of the existing literature suggests that ECT may benefit some more than ketamine,” said Mr. Young.

“There is evidence that ketamine with ECT may add little extra benefit, but much more work needs to be done to fully understand how these treatments fit best into the treatment pathway for major depressive episodes. However, based on this evidence, ECT clearly still merits a place in the treatment pathway,” Mr. Young added.

George Kirov, PhD, clinical professor, division of psychological medicine and clinical neurosciences, Cardiff University (England), said while the study is conducted well, most of the evidence is coming from one large trial conducted in Sweden.

“The other studies add small numbers of patients and the authors even present a sensitivity analysis after removing studies of poor quality, thus leaving only two studies and exposing even further the dependence of the results on one single study,” Dr. Kirov noted. 

“The small studies should not be blamed for their size, as this is very difficult research to perform. On the other hand, the trends were in the same direction,” he added.

With those caveats in mind, Dr. Kirov said he still thinks this is “important research. It establishes the superiority of ECT against an active comparator (ketamine) which is very popular now and accepted to be quite effective.”

The study had no specific funding. Dr. Menon reports no relevant financial relationships. Dr. McShane is former chair of the ECT and Related Treatments Committee, Royal College of Psychiatrists and runs a ketamine clinic and an ECT service. Mr. Young has received compensation for lectures and advisory boards for AstraZeneca, Eli Lilly, Lundbeck, Sunovion, Servier, Livanova, Janssen, Allergan, Bionomics, Sumitomo Dainippon Pharma, COMPASS, and Sage, and has served as principal investigator on a trial of intranasal esketamine in treatment-resistant depression. Dr. Kirov has no interest to declare other than running the ECT service in Cardiff.

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

Electroconvulsive therapy appears to have a small advantage over ketamine for improving depressive symptoms in adults with a major depressive episode, results of a new review show.

“Although ECT is superior to ketamine for patients with a major depressive episode, our findings suggest that the therapeutic advantage may be smaller than what was demonstrated in prior analyses,” first author Vikas Menon, MD, department of psychiatry, Jawaharlal Institute of Postgraduate Medical Education & Research, Puducherry, India, told this news organization.

“This supports a recommendation for a trial of ketamine before a trial of ECT for patients with MDE, though this recommendation is limited by the small size and number of existing trials,” Dr. Menon said.

The study was published online in JAMA Psychiatry.
 

Questions remain

The meta-analysis included five trials of 278 adults with MDE (141 treated with ketamine and 137 with ECT).

In the main analysis, posttreatment depression ratings showed a trend for lower scores with ECT, compared with ketamine (standardized mean difference, −0.39; 95% confidence interval, −0.81 to 0.02). 

In a sensitivity analysis of the two methodologically stronger trials, ECT was superior to ketamine (pooled SMD, −0.45; 95% CI, −0.75 to −0.14).

ECT was also superior to ketamine in terms of response rates (risk ratio, 1.27; 95% CI, 1.06-1.53) and remission rates (RR, 1.43; 95% CI, 1.12-1.82).

There were no significant between-group differences for number of sessions to response and remission and for cognitive outcomes.

Key limitations of the analysis were the small number of studies with limited sample sizes and a high risk of bias in all trials.

“There is a need for more comparative studies with adequate sample size in non-inferiority designs, examining a wider range of benefits and side effects and followed up for longer durations to answer clinically relevant questions about the nature and durability of observed benefits with ketamine,” said Dr. Menon.

“In patients with MDE for whom the administration of ECT is limited by restricted availability of the treatment, concerns about its cognitive adverse effects, negative patient attitudes, and other issues, clinicians may consider a trial of ketamine,” he added.
 

‘Important research’

Several experts offered perspective on the analysis in a statement from the U.K.-based nonprofit Science Media Centre, which was not involved with the conduct of this study.

Rupert McShane, MD, psychiatrist at the University of Oxford (England), noted that ECT and ketamine are both “potent” treatments for depression, and this meta-analysis shows that they are, “broadly speaking, equally as good as each other with perhaps a slight advantage for ECT.”

“Whether or not there is a difference depends on exactly how you define it and how you cut the data. Despite the slight advantage for ECT in this analysis, the authors support using ketamine before ECT, especially in patients who are worried about the cognitive risks of ECT. This seems sensible,” Dr. McShane said.

Allan Young, MBChB, clinical psychiatrist at King’s College London, noted that both ketamine and ECT have been shown to help some patients with treatment-resistant depression.

“Clearly the relative benefits of these two treatments need to be understood better, but this review of the existing literature suggests that ECT may benefit some more than ketamine,” said Mr. Young.

“There is evidence that ketamine with ECT may add little extra benefit, but much more work needs to be done to fully understand how these treatments fit best into the treatment pathway for major depressive episodes. However, based on this evidence, ECT clearly still merits a place in the treatment pathway,” Mr. Young added.

George Kirov, PhD, clinical professor, division of psychological medicine and clinical neurosciences, Cardiff University (England), said while the study is conducted well, most of the evidence is coming from one large trial conducted in Sweden.

“The other studies add small numbers of patients and the authors even present a sensitivity analysis after removing studies of poor quality, thus leaving only two studies and exposing even further the dependence of the results on one single study,” Dr. Kirov noted. 

“The small studies should not be blamed for their size, as this is very difficult research to perform. On the other hand, the trends were in the same direction,” he added.

With those caveats in mind, Dr. Kirov said he still thinks this is “important research. It establishes the superiority of ECT against an active comparator (ketamine) which is very popular now and accepted to be quite effective.”

The study had no specific funding. Dr. Menon reports no relevant financial relationships. Dr. McShane is former chair of the ECT and Related Treatments Committee, Royal College of Psychiatrists and runs a ketamine clinic and an ECT service. Mr. Young has received compensation for lectures and advisory boards for AstraZeneca, Eli Lilly, Lundbeck, Sunovion, Servier, Livanova, Janssen, Allergan, Bionomics, Sumitomo Dainippon Pharma, COMPASS, and Sage, and has served as principal investigator on a trial of intranasal esketamine in treatment-resistant depression. Dr. Kirov has no interest to declare other than running the ECT service in Cardiff.

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

In a new scientific statement, the American Heart Association highlighted the importance of incorporating nonbiological risk factors and social determinants of health in cardiovascular disease (CVD) risk assessment for women, particularly women from different racial and ethnic backgrounds.
 

CVD risk assessment in women is multifaceted and goes well beyond traditional risk factors to include sex-specific biological risk factors, as well as social, behavioral, and environmental factors, the writing group noted.

They said a greater focus on addressing all CVD risk factors among women from underrepresented races and ethnicities is warranted to avert future CVD.

The scientific statement was published online in Circulation.
 

Look beyond traditional risk factors

“Risk assessment is the first step in preventing heart disease, yet there are many limitations to traditional risk factors and their ability to comprehensively estimate a woman’s risk for cardiovascular disease,” Jennifer H. Mieres, MD, vice chair of the writing group and professor of cardiology at Hofstra University, Hempstead, N.Y., said in a news release. 

“The delivery of equitable cardiovascular health care for women depends on improving the knowledge and awareness of all members of the healthcare team about the full spectrum of cardiovascular risk factors for women, including female-specific and female-predominant risk factors,” Dr. Mieres added.

Female-specific factors that should be included in CVD risk assessment include pregnancy-related conditions such as preeclampsia, preterm delivery, and gestational diabetes, the writing group said.

Other factors include menstrual cycle history; types of birth control and/or hormone replacement therapy used; polycystic ovarian syndrome (PCOS), which affects 10% of women of reproductive age and is associated with increased CVD risk; and autoimmune disorders, depression, and PTSD, all of which are more common in women and are also associated with higher risk for CVD.

The statement also highlights the key role that social determinants of health (SDOH) play in the development of CVD in women, particularly women from diverse racial and ethnic backgrounds. SDOH include education level, economic stability, neighborhood safety, working conditions, environmental hazards, and access to quality health care.

“It is critical that risk assessment be expanded to include [SDOH] as risk factors if we are to improve health outcomes in all women,” Laxmi Mehta, MD, chair of the writing group and director of preventative cardiology and women’s cardiovascular health at Ohio State University Wexner Medical Center, Columbus, said in the news release.

“It is also important for the health care team to consider [SDOH] when working with women on shared decisions about cardiovascular disease prevention and treatment,” Dr. Mehta noted.
 

No one-size-fits-all approach

The statement highlighted significant differences in CVD risk among women of different racial and ethnic backgrounds and provides detailed CV risk factor profiles for non-Hispanic Black, Hispanic/Latinx, Asian and American Indian/Alaska Native women.

It noted that language barriers, discrimination, acculturation, and health care access disproportionately affect women of underrepresented racial and ethnic groups. These factors result in a higher prevalence of CVD and significant challenges in CVD diagnosis and treatment.

“When customizing CVD prevention and treatment strategies to improve cardiovascular health for women, a one-size-fits-all approach is unlikely to be successful,” Dr. Mieres said.

“We must be cognizant of the complex interplay of sex, race and ethnicity, as well as social determinants of health, and how they impact the risk of cardiovascular disease and adverse outcomes in order to avert future CVD morbidity and mortality,” Dr. Mieres added.

Looking ahead, the writing group said future CVD prevention guidelines could be strengthened by including culturally-specific lifestyle recommendations.

They also said community-based approaches, faith-based community partnerships, and peer support to encourage a healthy lifestyle could play a key role in preventing CVD among all women.

This scientific statement was prepared by the volunteer writing group on behalf of the AHA’s Cardiovascular Disease and Stroke in Women and Underrepresented Populations Committee of the Council on Clinical Cardiology, the Council on Cardiovascular and Stroke Nursing, the Council on Hypertension, the Council on Lifelong Congenital Heart Disease and Heart Health in the Young, the Council on Lifestyle and Cardiometabolic Health, the Council on Peripheral Vascular Disease, and the Stroke Council.

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

In a new scientific statement, the American Heart Association highlighted the importance of incorporating nonbiological risk factors and social determinants of health in cardiovascular disease (CVD) risk assessment for women, particularly women from different racial and ethnic backgrounds.
 

CVD risk assessment in women is multifaceted and goes well beyond traditional risk factors to include sex-specific biological risk factors, as well as social, behavioral, and environmental factors, the writing group noted.

They said a greater focus on addressing all CVD risk factors among women from underrepresented races and ethnicities is warranted to avert future CVD.

The scientific statement was published online in Circulation.
 

Look beyond traditional risk factors

“Risk assessment is the first step in preventing heart disease, yet there are many limitations to traditional risk factors and their ability to comprehensively estimate a woman’s risk for cardiovascular disease,” Jennifer H. Mieres, MD, vice chair of the writing group and professor of cardiology at Hofstra University, Hempstead, N.Y., said in a news release. 

“The delivery of equitable cardiovascular health care for women depends on improving the knowledge and awareness of all members of the healthcare team about the full spectrum of cardiovascular risk factors for women, including female-specific and female-predominant risk factors,” Dr. Mieres added.

Female-specific factors that should be included in CVD risk assessment include pregnancy-related conditions such as preeclampsia, preterm delivery, and gestational diabetes, the writing group said.

Other factors include menstrual cycle history; types of birth control and/or hormone replacement therapy used; polycystic ovarian syndrome (PCOS), which affects 10% of women of reproductive age and is associated with increased CVD risk; and autoimmune disorders, depression, and PTSD, all of which are more common in women and are also associated with higher risk for CVD.

The statement also highlights the key role that social determinants of health (SDOH) play in the development of CVD in women, particularly women from diverse racial and ethnic backgrounds. SDOH include education level, economic stability, neighborhood safety, working conditions, environmental hazards, and access to quality health care.

“It is critical that risk assessment be expanded to include [SDOH] as risk factors if we are to improve health outcomes in all women,” Laxmi Mehta, MD, chair of the writing group and director of preventative cardiology and women’s cardiovascular health at Ohio State University Wexner Medical Center, Columbus, said in the news release.

“It is also important for the health care team to consider [SDOH] when working with women on shared decisions about cardiovascular disease prevention and treatment,” Dr. Mehta noted.
 

No one-size-fits-all approach

The statement highlighted significant differences in CVD risk among women of different racial and ethnic backgrounds and provides detailed CV risk factor profiles for non-Hispanic Black, Hispanic/Latinx, Asian and American Indian/Alaska Native women.

It noted that language barriers, discrimination, acculturation, and health care access disproportionately affect women of underrepresented racial and ethnic groups. These factors result in a higher prevalence of CVD and significant challenges in CVD diagnosis and treatment.

“When customizing CVD prevention and treatment strategies to improve cardiovascular health for women, a one-size-fits-all approach is unlikely to be successful,” Dr. Mieres said.

“We must be cognizant of the complex interplay of sex, race and ethnicity, as well as social determinants of health, and how they impact the risk of cardiovascular disease and adverse outcomes in order to avert future CVD morbidity and mortality,” Dr. Mieres added.

Looking ahead, the writing group said future CVD prevention guidelines could be strengthened by including culturally-specific lifestyle recommendations.

They also said community-based approaches, faith-based community partnerships, and peer support to encourage a healthy lifestyle could play a key role in preventing CVD among all women.

This scientific statement was prepared by the volunteer writing group on behalf of the AHA’s Cardiovascular Disease and Stroke in Women and Underrepresented Populations Committee of the Council on Clinical Cardiology, the Council on Cardiovascular and Stroke Nursing, the Council on Hypertension, the Council on Lifelong Congenital Heart Disease and Heart Health in the Young, the Council on Lifestyle and Cardiometabolic Health, the Council on Peripheral Vascular Disease, and the Stroke Council.

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

In a new scientific statement, the American Heart Association highlighted the importance of incorporating nonbiological risk factors and social determinants of health in cardiovascular disease (CVD) risk assessment for women, particularly women from different racial and ethnic backgrounds.
 

CVD risk assessment in women is multifaceted and goes well beyond traditional risk factors to include sex-specific biological risk factors, as well as social, behavioral, and environmental factors, the writing group noted.

They said a greater focus on addressing all CVD risk factors among women from underrepresented races and ethnicities is warranted to avert future CVD.

The scientific statement was published online in Circulation.
 

Look beyond traditional risk factors

“Risk assessment is the first step in preventing heart disease, yet there are many limitations to traditional risk factors and their ability to comprehensively estimate a woman’s risk for cardiovascular disease,” Jennifer H. Mieres, MD, vice chair of the writing group and professor of cardiology at Hofstra University, Hempstead, N.Y., said in a news release. 

“The delivery of equitable cardiovascular health care for women depends on improving the knowledge and awareness of all members of the healthcare team about the full spectrum of cardiovascular risk factors for women, including female-specific and female-predominant risk factors,” Dr. Mieres added.

Female-specific factors that should be included in CVD risk assessment include pregnancy-related conditions such as preeclampsia, preterm delivery, and gestational diabetes, the writing group said.

Other factors include menstrual cycle history; types of birth control and/or hormone replacement therapy used; polycystic ovarian syndrome (PCOS), which affects 10% of women of reproductive age and is associated with increased CVD risk; and autoimmune disorders, depression, and PTSD, all of which are more common in women and are also associated with higher risk for CVD.

The statement also highlights the key role that social determinants of health (SDOH) play in the development of CVD in women, particularly women from diverse racial and ethnic backgrounds. SDOH include education level, economic stability, neighborhood safety, working conditions, environmental hazards, and access to quality health care.

“It is critical that risk assessment be expanded to include [SDOH] as risk factors if we are to improve health outcomes in all women,” Laxmi Mehta, MD, chair of the writing group and director of preventative cardiology and women’s cardiovascular health at Ohio State University Wexner Medical Center, Columbus, said in the news release.

“It is also important for the health care team to consider [SDOH] when working with women on shared decisions about cardiovascular disease prevention and treatment,” Dr. Mehta noted.
 

No one-size-fits-all approach

The statement highlighted significant differences in CVD risk among women of different racial and ethnic backgrounds and provides detailed CV risk factor profiles for non-Hispanic Black, Hispanic/Latinx, Asian and American Indian/Alaska Native women.

It noted that language barriers, discrimination, acculturation, and health care access disproportionately affect women of underrepresented racial and ethnic groups. These factors result in a higher prevalence of CVD and significant challenges in CVD diagnosis and treatment.

“When customizing CVD prevention and treatment strategies to improve cardiovascular health for women, a one-size-fits-all approach is unlikely to be successful,” Dr. Mieres said.

“We must be cognizant of the complex interplay of sex, race and ethnicity, as well as social determinants of health, and how they impact the risk of cardiovascular disease and adverse outcomes in order to avert future CVD morbidity and mortality,” Dr. Mieres added.

Looking ahead, the writing group said future CVD prevention guidelines could be strengthened by including culturally-specific lifestyle recommendations.

They also said community-based approaches, faith-based community partnerships, and peer support to encourage a healthy lifestyle could play a key role in preventing CVD among all women.

This scientific statement was prepared by the volunteer writing group on behalf of the AHA’s Cardiovascular Disease and Stroke in Women and Underrepresented Populations Committee of the Council on Clinical Cardiology, the Council on Cardiovascular and Stroke Nursing, the Council on Hypertension, the Council on Lifelong Congenital Heart Disease and Heart Health in the Young, the Council on Lifestyle and Cardiometabolic Health, the Council on Peripheral Vascular Disease, and the Stroke Council.

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

The American Society of Echocardiography (ASE) has issued guidance on all critical aspects of training for cardiology and anesthesiology trainees and postgraduate echocardiographers who plan to specialize in interventional echocardiography (IE).

The guideline outlines requirements of the training institution, the duration and core competencies of training, minimal procedural volume for competency in IE, and knowledge of specific structural health disease (SHD) procedures.

The 16-page guideline was published online  in the Journal of the American Society of Echocardiography.
 

Specific skill set

IE is the primary imaging modality used to support and guide SHD interventions, such as heart valve replacements and other cardiac catheterization procedures, the writing group notes.

They say the “emerging specialty” of IE requires a specific set of skills to support an array of transcatheter therapies, with successful outcomes highly dependent on the skill of the echocardiography team.

“IE techniques are unique since imaging is performed in real-time, it is highly dependent on 3D and non-standard views, and it has immediate and profound implications for patient management,” Stephen H. Little, MD, ASE president and co-chair of the guideline writing group, says in a news release.

“Additionally, IE requires candid, accurate, and timely communication with other members of the multidisciplinary SHD team,” Dr. Little adds.

The new ASE guideline expands on the 2019 statement on echocardiography training put forward by the American College of Cardiology, American Heart Association, and ASE, by focusing specifically on interventional echocardiographers.

It outlines core competencies common to all transcatheter therapies, as well as specific transcatheter procedures. It provides consensus recommendations for specific knowledge, experience, and skills to be learned and demonstrated within an IE training program or during postgraduate training.

A “core principle” in the guideline states that the length of IE training or achieved number of procedures performed are less important than the demonstration of procedure-specific competencies within the milestone domains of knowledge, skill, and communication.

“Transcatheter therapies for SHD continue to grow at a rapid pace, which means that the demand for skilled interventional echocardiographers has steadily increased,” Vera H. Rigolin, MD, co-chair of the guideline writing, says in the release.

“Training standards are needed to ensure that interventional echocardiographers have the necessary expertise to provide fast, accurate, and high-quality image acquisition and interpretation in real-time,” Dr. Rigolin adds.

In addition, the guidelines states that use of simulation training has a role in IE training.

Virtual and simulation training could shorten the learning curve for trainees and, when combined with remote learning, could permit societies to standardize a teaching curriculum and allow the trainee to complete training in a reasonable timeframe. Simulator training may also improve access to training and thus promote diversity and inclusivity, the writing group says.

The guideline has been endorsed by 21 ASE international partners.

Writing group co-chairs Little and Rigolin have declared no conflicts of interest. A complete list of disclosures for the writing group is available with the original article.

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

The American Society of Echocardiography (ASE) has issued guidance on all critical aspects of training for cardiology and anesthesiology trainees and postgraduate echocardiographers who plan to specialize in interventional echocardiography (IE).

The guideline outlines requirements of the training institution, the duration and core competencies of training, minimal procedural volume for competency in IE, and knowledge of specific structural health disease (SHD) procedures.

The 16-page guideline was published online  in the Journal of the American Society of Echocardiography.
 

Specific skill set

IE is the primary imaging modality used to support and guide SHD interventions, such as heart valve replacements and other cardiac catheterization procedures, the writing group notes.

They say the “emerging specialty” of IE requires a specific set of skills to support an array of transcatheter therapies, with successful outcomes highly dependent on the skill of the echocardiography team.

“IE techniques are unique since imaging is performed in real-time, it is highly dependent on 3D and non-standard views, and it has immediate and profound implications for patient management,” Stephen H. Little, MD, ASE president and co-chair of the guideline writing group, says in a news release.

“Additionally, IE requires candid, accurate, and timely communication with other members of the multidisciplinary SHD team,” Dr. Little adds.

The new ASE guideline expands on the 2019 statement on echocardiography training put forward by the American College of Cardiology, American Heart Association, and ASE, by focusing specifically on interventional echocardiographers.

It outlines core competencies common to all transcatheter therapies, as well as specific transcatheter procedures. It provides consensus recommendations for specific knowledge, experience, and skills to be learned and demonstrated within an IE training program or during postgraduate training.

A “core principle” in the guideline states that the length of IE training or achieved number of procedures performed are less important than the demonstration of procedure-specific competencies within the milestone domains of knowledge, skill, and communication.

“Transcatheter therapies for SHD continue to grow at a rapid pace, which means that the demand for skilled interventional echocardiographers has steadily increased,” Vera H. Rigolin, MD, co-chair of the guideline writing, says in the release.

“Training standards are needed to ensure that interventional echocardiographers have the necessary expertise to provide fast, accurate, and high-quality image acquisition and interpretation in real-time,” Dr. Rigolin adds.

In addition, the guidelines states that use of simulation training has a role in IE training.

Virtual and simulation training could shorten the learning curve for trainees and, when combined with remote learning, could permit societies to standardize a teaching curriculum and allow the trainee to complete training in a reasonable timeframe. Simulator training may also improve access to training and thus promote diversity and inclusivity, the writing group says.

The guideline has been endorsed by 21 ASE international partners.

Writing group co-chairs Little and Rigolin have declared no conflicts of interest. A complete list of disclosures for the writing group is available with the original article.

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

The American Society of Echocardiography (ASE) has issued guidance on all critical aspects of training for cardiology and anesthesiology trainees and postgraduate echocardiographers who plan to specialize in interventional echocardiography (IE).

The guideline outlines requirements of the training institution, the duration and core competencies of training, minimal procedural volume for competency in IE, and knowledge of specific structural health disease (SHD) procedures.

The 16-page guideline was published online  in the Journal of the American Society of Echocardiography.
 

Specific skill set

IE is the primary imaging modality used to support and guide SHD interventions, such as heart valve replacements and other cardiac catheterization procedures, the writing group notes.

They say the “emerging specialty” of IE requires a specific set of skills to support an array of transcatheter therapies, with successful outcomes highly dependent on the skill of the echocardiography team.

“IE techniques are unique since imaging is performed in real-time, it is highly dependent on 3D and non-standard views, and it has immediate and profound implications for patient management,” Stephen H. Little, MD, ASE president and co-chair of the guideline writing group, says in a news release.

“Additionally, IE requires candid, accurate, and timely communication with other members of the multidisciplinary SHD team,” Dr. Little adds.

The new ASE guideline expands on the 2019 statement on echocardiography training put forward by the American College of Cardiology, American Heart Association, and ASE, by focusing specifically on interventional echocardiographers.

It outlines core competencies common to all transcatheter therapies, as well as specific transcatheter procedures. It provides consensus recommendations for specific knowledge, experience, and skills to be learned and demonstrated within an IE training program or during postgraduate training.

A “core principle” in the guideline states that the length of IE training or achieved number of procedures performed are less important than the demonstration of procedure-specific competencies within the milestone domains of knowledge, skill, and communication.

“Transcatheter therapies for SHD continue to grow at a rapid pace, which means that the demand for skilled interventional echocardiographers has steadily increased,” Vera H. Rigolin, MD, co-chair of the guideline writing, says in the release.

“Training standards are needed to ensure that interventional echocardiographers have the necessary expertise to provide fast, accurate, and high-quality image acquisition and interpretation in real-time,” Dr. Rigolin adds.

In addition, the guidelines states that use of simulation training has a role in IE training.

Virtual and simulation training could shorten the learning curve for trainees and, when combined with remote learning, could permit societies to standardize a teaching curriculum and allow the trainee to complete training in a reasonable timeframe. Simulator training may also improve access to training and thus promote diversity and inclusivity, the writing group says.

The guideline has been endorsed by 21 ASE international partners.

Writing group co-chairs Little and Rigolin have declared no conflicts of interest. A complete list of disclosures for the writing group is available with the original article.

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

Anti–amyloid-beta drugs, which are used in the management of Alzheimer’s disease (AD), have the potential to compromise long-term brain health by accelerating brain atrophy, a comprehensive meta-analysis of MRI data from clinical trials suggests.

Depending on the anti–amyloid-beta drug class, these agents can accelerate loss of whole brain and hippocampal volume and increase ventricular volume. This has been shown for some of the beta-secretase inhibitors and with several of the antiamyloid monoclonal antibodies, researchers noted.

“These data warrant concern, but we can’t make any firm conclusions yet. It is possible that the finding is not detrimental, but the usual interpretation of this finding is that volume changes are a surrogate for disease progression,” study investigator Scott Ayton, PhD, of the Florey Institute of Neuroscience and Mental Health, University of Melbourne, said in an interview.

“These data should be factored into the decisions by clinicians when they consider prescribing antiamyloid therapies. Like any side effect, clinicians should inform patients regarding the risk of brain atrophy. Patients should be actively monitored for this side effect,” Dr. Ayton said.

The study was published online in Neurology.
 

Earlier progression from MCI to AD?

Dr. Ayton and colleagues evaluated brain volume changes in 31 clinical trials of anti–amyloid-beta drugs that demonstrated a favorable change in at least one biomarker of pathological amyloid-beta and included detailed MRI data sufficient to assess the volumetric changes in at least one brain region.

A meta-analysis on the highest dose in each trial on the hippocampus, ventricles, and whole brain showed drug-induced acceleration of volume changes that varied by anti–amyloid-beta drug class.

Secretase inhibitors accelerated atrophy in the hippocampus (mean difference –37.1 mcL; –19.6% relative to change in placebo) and whole brain (mean difference –3.3 mL; –21.8% relative to change in placebo), but not ventricles.

Conversely, monoclonal antibodies caused accelerated ventricular enlargement (mean difference +1.3 mL; +23.8% relative to change in placebo), which was driven by the subset of monoclonal antibodies that induce amyloid-related imaging abnormalities (ARIA) (+2.1 mL; +38.7% relative to change in placebo). There was a “striking correlation between ventricular volume and ARIA frequency,” the investigators reported.

The effect of ARIA-inducing monoclonal antibodies on whole brain volume varied, with accelerated whole brain volume loss caused by donanemab (mean difference –4.6 mL; +23% relative to change in placebo) and lecanemab (–5.2 mL; +36.4% relative to change in placebo). This was not observed with aducanumab and bapineuzumab.

Monoclonal antibodies did not cause accelerated volume loss to the hippocampus regardless of whether they caused ARIA.

The researchers also modeled the effect of anti–amyloid-beta drugs on brain volume changes. In this analysis, participants with mild cognitive impairment (MCI) treated with anti–amyloid-beta drugs were projected to have a “material regression” toward brain volumes typical of AD roughly 8 months earlier than untreated peers.

The data, they note, “permit robust conclusions regarding the effect of [anti–amyloid-beta] drug classes on different brain structures, but the lack of individual patient data (which has yet to be released) limits the interpretations of our findings.”

“Questions like which brain regions are impacted by [anti–amyloid-beta] drugs and whether the volume changes are related to ARIA, plaque loss, cognitive/noncognitive outcomes, or clinical factors such as age, sex, and apoE4 genotype can and should be addressed with available data,” said Dr. Ayton.

Dr. Ayton and colleagues called on data safety monitoring boards (DSMBs) for current clinical trials of anti–amyloid-beta drugs to review volumetric data to determine if patient safety is at risk, particularly in patients who develop ARIA.

In addition, they noted ethics boards that approve trials for anti–amyloid-beta drugs “should request that volume changes be actively monitored. Long-term follow-up of brain volumes should be factored into the trial designs to determine if brain atrophy is progressive, particularly in patients who develop ARIA.”

Finally, they added that drug companies that have conducted trials of anti–amyloid-beta drugs should interrogate prior data on brain volume, report the findings, and release the data for researchers to investigate.

“I have been banging on about this for years,” said Dr. Ayton. “Unfortunately, my raising of this issue has not led to any response. The data are not available, and the basic questions haven’t been asked (publicly).”
 

Commendable research

In an accompanying editorial, Frederik Barkhof, MD, PhD, with Amsterdam University Medical Centers, and David Knopman, MD, with Mayo Clinic Alzheimer’s Disease Research Center, Rochester, Minn., wrote that the investigators should be “commended” for their analysis. 

“The reality in 2023 is that the relevance of brain volume reductions in this therapeutic context remains uncertain,” they wrote.

“Longer periods of observation will be needed to know whether the brain volume losses continue at an accelerated rate or if they attenuate or disappear. Ultimately, it’s the clinical outcomes that matter, regardless of the MRI changes,” Barkhof and Knopman concluded.

The research was supported by funds from the Australian National Health & Medical Research Council. Dr. Ayton reported being a consultant for Eisai in the past 3 years. Dr. Barkhof reported serving on the data and safety monitoring board for Prothena and the A45-AHEAD studies; being a steering committee member for Merck, Bayer, and Biogen; and being a consultant for IXICO, Roche, Celltrion, Rewind Therapeutics, and Combinostics. Dr. Knopman reported serving on the DSMB for the Dominantly Inherited Alzheimer Network Treatment Unit study; serving on a DSMB for a tau therapeutic for Biogen; being an investigator for clinical trials sponsored by Biogen, Lilly Pharmaceuticals, and the University of Southern California. He reported consulting with Roche, Samus Therapeutics, Magellan Health, BioVie, and Alzeca Biosciences.

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

Anti–amyloid-beta drugs, which are used in the management of Alzheimer’s disease (AD), have the potential to compromise long-term brain health by accelerating brain atrophy, a comprehensive meta-analysis of MRI data from clinical trials suggests.

Depending on the anti–amyloid-beta drug class, these agents can accelerate loss of whole brain and hippocampal volume and increase ventricular volume. This has been shown for some of the beta-secretase inhibitors and with several of the antiamyloid monoclonal antibodies, researchers noted.

“These data warrant concern, but we can’t make any firm conclusions yet. It is possible that the finding is not detrimental, but the usual interpretation of this finding is that volume changes are a surrogate for disease progression,” study investigator Scott Ayton, PhD, of the Florey Institute of Neuroscience and Mental Health, University of Melbourne, said in an interview.

“These data should be factored into the decisions by clinicians when they consider prescribing antiamyloid therapies. Like any side effect, clinicians should inform patients regarding the risk of brain atrophy. Patients should be actively monitored for this side effect,” Dr. Ayton said.

The study was published online in Neurology.
 

Earlier progression from MCI to AD?

Dr. Ayton and colleagues evaluated brain volume changes in 31 clinical trials of anti–amyloid-beta drugs that demonstrated a favorable change in at least one biomarker of pathological amyloid-beta and included detailed MRI data sufficient to assess the volumetric changes in at least one brain region.

A meta-analysis on the highest dose in each trial on the hippocampus, ventricles, and whole brain showed drug-induced acceleration of volume changes that varied by anti–amyloid-beta drug class.

Secretase inhibitors accelerated atrophy in the hippocampus (mean difference –37.1 mcL; –19.6% relative to change in placebo) and whole brain (mean difference –3.3 mL; –21.8% relative to change in placebo), but not ventricles.

Conversely, monoclonal antibodies caused accelerated ventricular enlargement (mean difference +1.3 mL; +23.8% relative to change in placebo), which was driven by the subset of monoclonal antibodies that induce amyloid-related imaging abnormalities (ARIA) (+2.1 mL; +38.7% relative to change in placebo). There was a “striking correlation between ventricular volume and ARIA frequency,” the investigators reported.

The effect of ARIA-inducing monoclonal antibodies on whole brain volume varied, with accelerated whole brain volume loss caused by donanemab (mean difference –4.6 mL; +23% relative to change in placebo) and lecanemab (–5.2 mL; +36.4% relative to change in placebo). This was not observed with aducanumab and bapineuzumab.

Monoclonal antibodies did not cause accelerated volume loss to the hippocampus regardless of whether they caused ARIA.

The researchers also modeled the effect of anti–amyloid-beta drugs on brain volume changes. In this analysis, participants with mild cognitive impairment (MCI) treated with anti–amyloid-beta drugs were projected to have a “material regression” toward brain volumes typical of AD roughly 8 months earlier than untreated peers.

The data, they note, “permit robust conclusions regarding the effect of [anti–amyloid-beta] drug classes on different brain structures, but the lack of individual patient data (which has yet to be released) limits the interpretations of our findings.”

“Questions like which brain regions are impacted by [anti–amyloid-beta] drugs and whether the volume changes are related to ARIA, plaque loss, cognitive/noncognitive outcomes, or clinical factors such as age, sex, and apoE4 genotype can and should be addressed with available data,” said Dr. Ayton.

Dr. Ayton and colleagues called on data safety monitoring boards (DSMBs) for current clinical trials of anti–amyloid-beta drugs to review volumetric data to determine if patient safety is at risk, particularly in patients who develop ARIA.

In addition, they noted ethics boards that approve trials for anti–amyloid-beta drugs “should request that volume changes be actively monitored. Long-term follow-up of brain volumes should be factored into the trial designs to determine if brain atrophy is progressive, particularly in patients who develop ARIA.”

Finally, they added that drug companies that have conducted trials of anti–amyloid-beta drugs should interrogate prior data on brain volume, report the findings, and release the data for researchers to investigate.

“I have been banging on about this for years,” said Dr. Ayton. “Unfortunately, my raising of this issue has not led to any response. The data are not available, and the basic questions haven’t been asked (publicly).”
 

Commendable research

In an accompanying editorial, Frederik Barkhof, MD, PhD, with Amsterdam University Medical Centers, and David Knopman, MD, with Mayo Clinic Alzheimer’s Disease Research Center, Rochester, Minn., wrote that the investigators should be “commended” for their analysis. 

“The reality in 2023 is that the relevance of brain volume reductions in this therapeutic context remains uncertain,” they wrote.

“Longer periods of observation will be needed to know whether the brain volume losses continue at an accelerated rate or if they attenuate or disappear. Ultimately, it’s the clinical outcomes that matter, regardless of the MRI changes,” Barkhof and Knopman concluded.

The research was supported by funds from the Australian National Health & Medical Research Council. Dr. Ayton reported being a consultant for Eisai in the past 3 years. Dr. Barkhof reported serving on the data and safety monitoring board for Prothena and the A45-AHEAD studies; being a steering committee member for Merck, Bayer, and Biogen; and being a consultant for IXICO, Roche, Celltrion, Rewind Therapeutics, and Combinostics. Dr. Knopman reported serving on the DSMB for the Dominantly Inherited Alzheimer Network Treatment Unit study; serving on a DSMB for a tau therapeutic for Biogen; being an investigator for clinical trials sponsored by Biogen, Lilly Pharmaceuticals, and the University of Southern California. He reported consulting with Roche, Samus Therapeutics, Magellan Health, BioVie, and Alzeca Biosciences.

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

Anti–amyloid-beta drugs, which are used in the management of Alzheimer’s disease (AD), have the potential to compromise long-term brain health by accelerating brain atrophy, a comprehensive meta-analysis of MRI data from clinical trials suggests.

Depending on the anti–amyloid-beta drug class, these agents can accelerate loss of whole brain and hippocampal volume and increase ventricular volume. This has been shown for some of the beta-secretase inhibitors and with several of the antiamyloid monoclonal antibodies, researchers noted.

“These data warrant concern, but we can’t make any firm conclusions yet. It is possible that the finding is not detrimental, but the usual interpretation of this finding is that volume changes are a surrogate for disease progression,” study investigator Scott Ayton, PhD, of the Florey Institute of Neuroscience and Mental Health, University of Melbourne, said in an interview.

“These data should be factored into the decisions by clinicians when they consider prescribing antiamyloid therapies. Like any side effect, clinicians should inform patients regarding the risk of brain atrophy. Patients should be actively monitored for this side effect,” Dr. Ayton said.

The study was published online in Neurology.
 

Earlier progression from MCI to AD?

Dr. Ayton and colleagues evaluated brain volume changes in 31 clinical trials of anti–amyloid-beta drugs that demonstrated a favorable change in at least one biomarker of pathological amyloid-beta and included detailed MRI data sufficient to assess the volumetric changes in at least one brain region.

A meta-analysis on the highest dose in each trial on the hippocampus, ventricles, and whole brain showed drug-induced acceleration of volume changes that varied by anti–amyloid-beta drug class.

Secretase inhibitors accelerated atrophy in the hippocampus (mean difference –37.1 mcL; –19.6% relative to change in placebo) and whole brain (mean difference –3.3 mL; –21.8% relative to change in placebo), but not ventricles.

Conversely, monoclonal antibodies caused accelerated ventricular enlargement (mean difference +1.3 mL; +23.8% relative to change in placebo), which was driven by the subset of monoclonal antibodies that induce amyloid-related imaging abnormalities (ARIA) (+2.1 mL; +38.7% relative to change in placebo). There was a “striking correlation between ventricular volume and ARIA frequency,” the investigators reported.

The effect of ARIA-inducing monoclonal antibodies on whole brain volume varied, with accelerated whole brain volume loss caused by donanemab (mean difference –4.6 mL; +23% relative to change in placebo) and lecanemab (–5.2 mL; +36.4% relative to change in placebo). This was not observed with aducanumab and bapineuzumab.

Monoclonal antibodies did not cause accelerated volume loss to the hippocampus regardless of whether they caused ARIA.

The researchers also modeled the effect of anti–amyloid-beta drugs on brain volume changes. In this analysis, participants with mild cognitive impairment (MCI) treated with anti–amyloid-beta drugs were projected to have a “material regression” toward brain volumes typical of AD roughly 8 months earlier than untreated peers.

The data, they note, “permit robust conclusions regarding the effect of [anti–amyloid-beta] drug classes on different brain structures, but the lack of individual patient data (which has yet to be released) limits the interpretations of our findings.”

“Questions like which brain regions are impacted by [anti–amyloid-beta] drugs and whether the volume changes are related to ARIA, plaque loss, cognitive/noncognitive outcomes, or clinical factors such as age, sex, and apoE4 genotype can and should be addressed with available data,” said Dr. Ayton.

Dr. Ayton and colleagues called on data safety monitoring boards (DSMBs) for current clinical trials of anti–amyloid-beta drugs to review volumetric data to determine if patient safety is at risk, particularly in patients who develop ARIA.

In addition, they noted ethics boards that approve trials for anti–amyloid-beta drugs “should request that volume changes be actively monitored. Long-term follow-up of brain volumes should be factored into the trial designs to determine if brain atrophy is progressive, particularly in patients who develop ARIA.”

Finally, they added that drug companies that have conducted trials of anti–amyloid-beta drugs should interrogate prior data on brain volume, report the findings, and release the data for researchers to investigate.

“I have been banging on about this for years,” said Dr. Ayton. “Unfortunately, my raising of this issue has not led to any response. The data are not available, and the basic questions haven’t been asked (publicly).”
 

Commendable research

In an accompanying editorial, Frederik Barkhof, MD, PhD, with Amsterdam University Medical Centers, and David Knopman, MD, with Mayo Clinic Alzheimer’s Disease Research Center, Rochester, Minn., wrote that the investigators should be “commended” for their analysis. 

“The reality in 2023 is that the relevance of brain volume reductions in this therapeutic context remains uncertain,” they wrote.

“Longer periods of observation will be needed to know whether the brain volume losses continue at an accelerated rate or if they attenuate or disappear. Ultimately, it’s the clinical outcomes that matter, regardless of the MRI changes,” Barkhof and Knopman concluded.

The research was supported by funds from the Australian National Health & Medical Research Council. Dr. Ayton reported being a consultant for Eisai in the past 3 years. Dr. Barkhof reported serving on the data and safety monitoring board for Prothena and the A45-AHEAD studies; being a steering committee member for Merck, Bayer, and Biogen; and being a consultant for IXICO, Roche, Celltrion, Rewind Therapeutics, and Combinostics. Dr. Knopman reported serving on the DSMB for the Dominantly Inherited Alzheimer Network Treatment Unit study; serving on a DSMB for a tau therapeutic for Biogen; being an investigator for clinical trials sponsored by Biogen, Lilly Pharmaceuticals, and the University of Southern California. He reported consulting with Roche, Samus Therapeutics, Magellan Health, BioVie, and Alzeca Biosciences.

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

New research provides more evidence that tau plasma biomarkers associated with Alzheimer’s disease can be skewed by chronic kidney disease and suggests that using ratios of these biomarkers can attenuate the skewed results.

In a cross-sectional study of adults with and those without cognitive impairment, chronic kidney disease was associated with increased plasma concentrations of phosphorylated tau (p-tau) 217 and 181.

However, there were no associations between chronic kidney disease and the ratio of p-tau217 to unphosphorylated tau 217 (pT217/T217), and the associations with p-tau181 to unphosphorylated tau 181 (pT181/T181) were attenuated in patients with cognitive impairment.

“These novel findings suggest that plasma measures of the phosphorylated to unphosphorylated tau ratios are more accurate than p-tau forms alone as they correlate less with individual difference in glomerular filtration rate or impaired kidney function,” reported an investigative team led by Oskar Hansson, MD, PhD, with Lund University in Sweden.

“Thus, to mitigate the effects of non-Alzheimer’s–related comorbidities like chronic kidney disease on the performance of plasma Alzheimer’s disease biomarkers, certain tau ratios, and specifically pT217/T217, should be considered for implementation in clinical practice and drug trials,” they added.

The study was published online in JAMA Neurology to coincide with a presentation at the International Conference on Alzheimer’s and Parkinson’s Diseases in Gothenburg, Sweden.


 

Skewed tau levels

Plasma biomarkers of amyloid-beta (Abeta) and tau pathologies, and in particular variants in p-tau217 and p-tau181, have shown promise for use in Alzheimer’s disease diagnosis and prognosis. However, previous reports have suggested that chronic kidney disease might influence plasma p-tau217 and p-tau181 concentrations, potentially decreasing their usefulness in the diagnostic workup of dementia.

Researchers investigated associations of chronic kidney disease with plasma ratios of p-tau217 and p-tau181 to the corresponding unphosphorylated peptides in Alzheimer’s disease.

The data came from 473 older adults, with and without cognitive impairment, from the Swedish BioFinder-2 study who had plasma tau assessments and chronic kidney disease status established within 6 months of plasma collection.

The researchers found that lower estimated glomerular filtration rate levels (indicative of kidney dysfunction) were associated with higher plasma concentrations of phosphorylated and unphosphorylated tau peptides measured simultaneously using the tau immunoprecipitation mass spectrometry assay.

However, the correlations with estimated glomerular filtration rate were nonsignificant for the pT217/T217 ratio in individuals with cognitive impairment and were significantly attenuated for pT217/T217 in cognitively unimpaired individuals and for pT181/T181 in both cognitively unimpaired and impaired individuals.

“Importantly, we demonstrate that there were no significant associations between chronic kidney disease and the pT217/T217 ratio and changes in plasma pT181/T181 associated with chronic kidney disease were small or nonsignificant,” the researchers noted.

“Our results indicate that by using p-tau/tau ratios we may be able to reduce the variability in plasma p-tau levels driven by impaired kidney function and consequently such ratios are more robust measures of brain p-tau pathology in individuals with both early- and later-stage Alzheimer’s disease,” they added.

The researchers believe this is likely true for the ratios of other related proteins – a view that is supported by findings of attenuated associations of chronic kidney disease with Abeta42/40, compared with Abeta42 and Abeta40 in the current study and in previous studies.
 

Important clinical implications

Reached for comment, Rebecca Edelmayer, PhD, Alzheimer’s Association senior director of scientific engagement, noted that research continues to indicate that blood biomarkers have “promise for improving, and possibly even redefining, the clinical workup for Alzheimer’s disease.

“Many of the Alzheimer’s blood tests in development today have focused on core blood biomarkers associated with amyloid accumulation and tau tangle formation in the brain,” Dr. Edelmayer said.

“Before these tests can be used more broadly in the clinic, we need to understand all of the variables that may impact the results of various blood biomarkers, including differences that may be driven by race, ethnicity, sex, and underlying health conditions, such as chronic kidney disease.

“This study corroborates other research suggesting that some Alzheimer’s-associated markers can be affected by chronic kidney disease, but by using ratios of amyloid or tau markers, we may be able to minimize these differences in results caused by underlying disease,” Dr. Edelmayer said.

Howard Fillit, MD, cofounder and chief science officer at the Alzheimer’s Drug Discovery Foundation, said, “Using these ratios makes a lot of sense because the ratios wouldn’t change with kidney function. I think this is an important advance in clinical utilization of these tests.”

Dr. Fillit noted that older people often have declining kidney function, which can be easily measured by glomerular filtration rate. Changes in blood levels of these markers with declining kidney function are “not unexpected, but [it’s] important that it’s been demonstrated.

“As we go forward, maybe the future utilization of these tests will be not only recording the ratios but also reporting the ratios in the context of somebody’s glomerular filtration rate. You could imagine a scenario where when the test is done, it’s automatically done alongside of glomerular filtration rate,” Dr. Fillit said in an interview.

The study was supported by Coins for Alzheimer’s Research Trust, the Tracy Family Stable Isotope Labeling Quantitation Center, and the National Institute of Neurological Disorders and Stroke. Dr. Hansson has received support to his institution from ADx, AVID Radiopharmaceuticals, Biogen, Eli Lilly, Eisai, Fujirebio, GE Healthcare, Pfizer, and Roche; consultancy/speaker fees from Amylyx, Alzpath, Biogen, Cerveau, Fujirebio, Genentech, Novartis, Roche, and Siemens; and personal fees from Eli Lilly, Eisai, Bioarctic, and Biogen outside the submitted work. Dr. Edelmayer and Dr. Fillit have disclosed no relevant financial relationships.

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

New research provides more evidence that tau plasma biomarkers associated with Alzheimer’s disease can be skewed by chronic kidney disease and suggests that using ratios of these biomarkers can attenuate the skewed results.

In a cross-sectional study of adults with and those without cognitive impairment, chronic kidney disease was associated with increased plasma concentrations of phosphorylated tau (p-tau) 217 and 181.

However, there were no associations between chronic kidney disease and the ratio of p-tau217 to unphosphorylated tau 217 (pT217/T217), and the associations with p-tau181 to unphosphorylated tau 181 (pT181/T181) were attenuated in patients with cognitive impairment.

“These novel findings suggest that plasma measures of the phosphorylated to unphosphorylated tau ratios are more accurate than p-tau forms alone as they correlate less with individual difference in glomerular filtration rate or impaired kidney function,” reported an investigative team led by Oskar Hansson, MD, PhD, with Lund University in Sweden.

“Thus, to mitigate the effects of non-Alzheimer’s–related comorbidities like chronic kidney disease on the performance of plasma Alzheimer’s disease biomarkers, certain tau ratios, and specifically pT217/T217, should be considered for implementation in clinical practice and drug trials,” they added.

The study was published online in JAMA Neurology to coincide with a presentation at the International Conference on Alzheimer’s and Parkinson’s Diseases in Gothenburg, Sweden.


 

Skewed tau levels

Plasma biomarkers of amyloid-beta (Abeta) and tau pathologies, and in particular variants in p-tau217 and p-tau181, have shown promise for use in Alzheimer’s disease diagnosis and prognosis. However, previous reports have suggested that chronic kidney disease might influence plasma p-tau217 and p-tau181 concentrations, potentially decreasing their usefulness in the diagnostic workup of dementia.

Researchers investigated associations of chronic kidney disease with plasma ratios of p-tau217 and p-tau181 to the corresponding unphosphorylated peptides in Alzheimer’s disease.

The data came from 473 older adults, with and without cognitive impairment, from the Swedish BioFinder-2 study who had plasma tau assessments and chronic kidney disease status established within 6 months of plasma collection.

The researchers found that lower estimated glomerular filtration rate levels (indicative of kidney dysfunction) were associated with higher plasma concentrations of phosphorylated and unphosphorylated tau peptides measured simultaneously using the tau immunoprecipitation mass spectrometry assay.

However, the correlations with estimated glomerular filtration rate were nonsignificant for the pT217/T217 ratio in individuals with cognitive impairment and were significantly attenuated for pT217/T217 in cognitively unimpaired individuals and for pT181/T181 in both cognitively unimpaired and impaired individuals.

“Importantly, we demonstrate that there were no significant associations between chronic kidney disease and the pT217/T217 ratio and changes in plasma pT181/T181 associated with chronic kidney disease were small or nonsignificant,” the researchers noted.

“Our results indicate that by using p-tau/tau ratios we may be able to reduce the variability in plasma p-tau levels driven by impaired kidney function and consequently such ratios are more robust measures of brain p-tau pathology in individuals with both early- and later-stage Alzheimer’s disease,” they added.

The researchers believe this is likely true for the ratios of other related proteins – a view that is supported by findings of attenuated associations of chronic kidney disease with Abeta42/40, compared with Abeta42 and Abeta40 in the current study and in previous studies.
 

Important clinical implications

Reached for comment, Rebecca Edelmayer, PhD, Alzheimer’s Association senior director of scientific engagement, noted that research continues to indicate that blood biomarkers have “promise for improving, and possibly even redefining, the clinical workup for Alzheimer’s disease.

“Many of the Alzheimer’s blood tests in development today have focused on core blood biomarkers associated with amyloid accumulation and tau tangle formation in the brain,” Dr. Edelmayer said.

“Before these tests can be used more broadly in the clinic, we need to understand all of the variables that may impact the results of various blood biomarkers, including differences that may be driven by race, ethnicity, sex, and underlying health conditions, such as chronic kidney disease.

“This study corroborates other research suggesting that some Alzheimer’s-associated markers can be affected by chronic kidney disease, but by using ratios of amyloid or tau markers, we may be able to minimize these differences in results caused by underlying disease,” Dr. Edelmayer said.

Howard Fillit, MD, cofounder and chief science officer at the Alzheimer’s Drug Discovery Foundation, said, “Using these ratios makes a lot of sense because the ratios wouldn’t change with kidney function. I think this is an important advance in clinical utilization of these tests.”

Dr. Fillit noted that older people often have declining kidney function, which can be easily measured by glomerular filtration rate. Changes in blood levels of these markers with declining kidney function are “not unexpected, but [it’s] important that it’s been demonstrated.

“As we go forward, maybe the future utilization of these tests will be not only recording the ratios but also reporting the ratios in the context of somebody’s glomerular filtration rate. You could imagine a scenario where when the test is done, it’s automatically done alongside of glomerular filtration rate,” Dr. Fillit said in an interview.

The study was supported by Coins for Alzheimer’s Research Trust, the Tracy Family Stable Isotope Labeling Quantitation Center, and the National Institute of Neurological Disorders and Stroke. Dr. Hansson has received support to his institution from ADx, AVID Radiopharmaceuticals, Biogen, Eli Lilly, Eisai, Fujirebio, GE Healthcare, Pfizer, and Roche; consultancy/speaker fees from Amylyx, Alzpath, Biogen, Cerveau, Fujirebio, Genentech, Novartis, Roche, and Siemens; and personal fees from Eli Lilly, Eisai, Bioarctic, and Biogen outside the submitted work. Dr. Edelmayer and Dr. Fillit have disclosed no relevant financial relationships.

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

New research provides more evidence that tau plasma biomarkers associated with Alzheimer’s disease can be skewed by chronic kidney disease and suggests that using ratios of these biomarkers can attenuate the skewed results.

In a cross-sectional study of adults with and those without cognitive impairment, chronic kidney disease was associated with increased plasma concentrations of phosphorylated tau (p-tau) 217 and 181.

However, there were no associations between chronic kidney disease and the ratio of p-tau217 to unphosphorylated tau 217 (pT217/T217), and the associations with p-tau181 to unphosphorylated tau 181 (pT181/T181) were attenuated in patients with cognitive impairment.

“These novel findings suggest that plasma measures of the phosphorylated to unphosphorylated tau ratios are more accurate than p-tau forms alone as they correlate less with individual difference in glomerular filtration rate or impaired kidney function,” reported an investigative team led by Oskar Hansson, MD, PhD, with Lund University in Sweden.

“Thus, to mitigate the effects of non-Alzheimer’s–related comorbidities like chronic kidney disease on the performance of plasma Alzheimer’s disease biomarkers, certain tau ratios, and specifically pT217/T217, should be considered for implementation in clinical practice and drug trials,” they added.

The study was published online in JAMA Neurology to coincide with a presentation at the International Conference on Alzheimer’s and Parkinson’s Diseases in Gothenburg, Sweden.


 

Skewed tau levels

Plasma biomarkers of amyloid-beta (Abeta) and tau pathologies, and in particular variants in p-tau217 and p-tau181, have shown promise for use in Alzheimer’s disease diagnosis and prognosis. However, previous reports have suggested that chronic kidney disease might influence plasma p-tau217 and p-tau181 concentrations, potentially decreasing their usefulness in the diagnostic workup of dementia.

Researchers investigated associations of chronic kidney disease with plasma ratios of p-tau217 and p-tau181 to the corresponding unphosphorylated peptides in Alzheimer’s disease.

The data came from 473 older adults, with and without cognitive impairment, from the Swedish BioFinder-2 study who had plasma tau assessments and chronic kidney disease status established within 6 months of plasma collection.

The researchers found that lower estimated glomerular filtration rate levels (indicative of kidney dysfunction) were associated with higher plasma concentrations of phosphorylated and unphosphorylated tau peptides measured simultaneously using the tau immunoprecipitation mass spectrometry assay.

However, the correlations with estimated glomerular filtration rate were nonsignificant for the pT217/T217 ratio in individuals with cognitive impairment and were significantly attenuated for pT217/T217 in cognitively unimpaired individuals and for pT181/T181 in both cognitively unimpaired and impaired individuals.

“Importantly, we demonstrate that there were no significant associations between chronic kidney disease and the pT217/T217 ratio and changes in plasma pT181/T181 associated with chronic kidney disease were small or nonsignificant,” the researchers noted.

“Our results indicate that by using p-tau/tau ratios we may be able to reduce the variability in plasma p-tau levels driven by impaired kidney function and consequently such ratios are more robust measures of brain p-tau pathology in individuals with both early- and later-stage Alzheimer’s disease,” they added.

The researchers believe this is likely true for the ratios of other related proteins – a view that is supported by findings of attenuated associations of chronic kidney disease with Abeta42/40, compared with Abeta42 and Abeta40 in the current study and in previous studies.
 

Important clinical implications

Reached for comment, Rebecca Edelmayer, PhD, Alzheimer’s Association senior director of scientific engagement, noted that research continues to indicate that blood biomarkers have “promise for improving, and possibly even redefining, the clinical workup for Alzheimer’s disease.

“Many of the Alzheimer’s blood tests in development today have focused on core blood biomarkers associated with amyloid accumulation and tau tangle formation in the brain,” Dr. Edelmayer said.

“Before these tests can be used more broadly in the clinic, we need to understand all of the variables that may impact the results of various blood biomarkers, including differences that may be driven by race, ethnicity, sex, and underlying health conditions, such as chronic kidney disease.

“This study corroborates other research suggesting that some Alzheimer’s-associated markers can be affected by chronic kidney disease, but by using ratios of amyloid or tau markers, we may be able to minimize these differences in results caused by underlying disease,” Dr. Edelmayer said.

Howard Fillit, MD, cofounder and chief science officer at the Alzheimer’s Drug Discovery Foundation, said, “Using these ratios makes a lot of sense because the ratios wouldn’t change with kidney function. I think this is an important advance in clinical utilization of these tests.”

Dr. Fillit noted that older people often have declining kidney function, which can be easily measured by glomerular filtration rate. Changes in blood levels of these markers with declining kidney function are “not unexpected, but [it’s] important that it’s been demonstrated.

“As we go forward, maybe the future utilization of these tests will be not only recording the ratios but also reporting the ratios in the context of somebody’s glomerular filtration rate. You could imagine a scenario where when the test is done, it’s automatically done alongside of glomerular filtration rate,” Dr. Fillit said in an interview.

The study was supported by Coins for Alzheimer’s Research Trust, the Tracy Family Stable Isotope Labeling Quantitation Center, and the National Institute of Neurological Disorders and Stroke. Dr. Hansson has received support to his institution from ADx, AVID Radiopharmaceuticals, Biogen, Eli Lilly, Eisai, Fujirebio, GE Healthcare, Pfizer, and Roche; consultancy/speaker fees from Amylyx, Alzpath, Biogen, Cerveau, Fujirebio, Genentech, Novartis, Roche, and Siemens; and personal fees from Eli Lilly, Eisai, Bioarctic, and Biogen outside the submitted work. Dr. Edelmayer and Dr. Fillit have disclosed no relevant financial relationships.

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