Jim Kling

NASHVILLE, TENNESSEE — Individuals with multiple sclerosis are living longer, healthier lives. More than half of patients with MS are 55 years or older, and the incidence of late-onset MS is rising.

This can lead to complex treatment decisions, according to Amy Perrin Ross, APN, MSN, CNRN, MSCN, who is the neuroscience program coordinator at Loyola Medical Center in Maywood, Illinois.

“Age was ranked as the second most important factor affecting treatment decisions in a recent survey of MS specialists,” said Ms. Ross, during a presentation at the annual meeting of the Consortium of Multiple Sclerosis Centers. But there is little evidence to support treatment decisions, since there are few older patients enrolled in clinical trials. The average age is around 30-34 years.
 

MS in Older Patients

Aging is associated with immune system changes. There is a decline in inflammatory activity and an accompanying 17% reduction in the relapse rate with every 5 years of advancing age, and the majority of relapses occur within 30 years of onset. The bad news is that patients have reduced capacity to recover from relapses as they age.

“When I’m talking to patients about pros and cons [of treatment], I do mention that, yes, your relapse rate might be less, but as we age, we have less of an ability to completely recover,” said Ms. Ross.

The efficacy of disease-modifying therapies (DMTs) goes down with advancing age. One meta-analyis of 38 randomized trials and 13 therapies found that benefit with respect to disease progression generally disappeared by the age of 53. “Age is an essential modifier of drug efficacy,” said Ms. Ross.

On the other hand, another meta-analysis found that success in treating relapses was similar across age groups. “So it seems that we can successfully treat our patients’ relapses: There was no significant association between age and reductions in annualized relapse rate,” she said, though she noted that clinical trial populations are likely to be dissimilar to aging patients, many of whom have gone years without experiencing a relapse.

Aging can also lead to differences in potential adverse effects of DMTs. Patients with MS experience faster immunosenescence, in which normal changes to the innate and adaptive immune system are accelerated. This can lead to greater risk of infection, and other adverse events can include post-administration reactions and changes to serum IgG levels.

Other conditions that should be monitored for include progressive multifocal leukoencephalopathy, and malignancies are more prevalent among people with MS than the general population, although it is unclear if this is due to the use of DMTs or other factors, or even just coincidence, said Ms. Ross. “Those are all things to keep in mind as we’re pushing forward with therapy for patients,” she said.

Comorbidities that occur with aging can also affect treatment outcomes, and could tip the balance against use of DMTs in some situations.
 

What Does the Literature Say?

There has been a range of retrospective studies looking at the results of discontinuation of DMTs with advancing age, and the results have been mixed. Some factors are associated with greater likelihood of disease reactivation, including younger age, female sex, shorter duration without a relapse, MRI activity, and degree of disability.

A study of a French registry including patients aged 50 years and older who went off DMTs found that 100% of patients who discontinued therapy were on older injectable DMTs, and 34.9% of that group restarted therapy over a mean follow-up of 7 years. The risk of relapse or disability progression was similar between the groups, but discontinuers who started with Expanded Disability Status Scale (EDSS) scores lower than 6.0 were more likely to reach an EDSS score of 6.0.

The DISCOMS study compared 259 patients randomized to continue DMTs versus discontinuation of DMTs. “What they found was that noninferiority was not shown. Disease activity, such as relapses and new lesions, [occurred in] 12% of the discontinuers and 5% of the continuers,” said Ms. Ross.

One option to balance risk and benefit is DMT de-escalation, with the aim to match disease therapy with disease activity over time. A 2023 survey of 224 neurologists to identify characteristics in older patients that would prompt de-escalation. The most common reasons were overall safety or comorbidity concerns (62% endorsed), high risk of infection (59%), low disease activity or stable disease (50%), concerns about efficacy (41%), high disability (37%), and patient choice (36%). About 7% reported that they generally do not de-escalate.

The preferred de-escalation therapies included glatiramer acetate (29%), fumarates (27%), teriflunomide (23%), and interferon betas (21%).

Ms. Ross noted that the study was likely conducted around the height of the COVID-19 pandemic. “So I wonder if some of these results might be a little bit different [than if it was conducted at a different time],” she said.
 

Other Concerns and Options

During the Q&A session, one audience member asked if physicians should consider low-efficacy medications in older patients with the idea that they at least get a little bit of protection.

Patricia Coyle, MD, who also presented during the session, framed her response around whether the patient had relapsing or progressive MS. “If somebody has had relapsing MS and has never transitioned to progressive MS, and they’re 70, maybe they don’t need to be on any DMT. If there’s no longer a focal inflammatory relapsing phase, if we could feel confident on that possibility, then maybe they don’t need to be on a relapsing DMT,” said Dr. Coyle, who is director of the MS Comprehensive Care Center at Stony Brook University Medical Center in Stony Brook, New York.

Alternatively, if a patient has progressive MS, she said she would recommend discontinuing treatment if she believes the patient is being harmed by it, to focus instead on health and wellness.

Another questioner wondered what to do with a 70-year-old patient who has had no infections, has normal IgG, but insists on continuing high-efficacy B-cell therapy. Dr. Coyle responded that she would tell the patient that she believes it isn’t offering any benefit, but if the patient insisted, she would continue: “I’m not living with MS the way they are. If they tell me, ‘I believe it’s helping me and I want to stay on it,’ then so long as I don’t think I’m overtly harming them, I’m going to treat them.”

Ms. Ross agreed, and suggested that ceding to the patient’s will is an important consideration. “I think sometimes what we’re doing, if we’re not causing harm, what we’re doing is bolstering these people’s ability to continue to have hope, and that in my mind is a big part of managing their disease,” she said.

Ms. Ross has financial relationships with Alexion Pharmaceuticals, Amgen/Horizon, ArgenX, Banner, Bristol Myers Squibb, EMD Serono, Roche, Sandoz, TG Therapeutics, UCB, and Viatris. Dr. Coyle has consulted for Accordant, Amgen, Bristol Myers Squibb, EMD Serono, Genentech, GlaxoSmithKline, Horizon Therapeutics, LabCorp, Eli Lilly, Mylan, Novartis, and Sanofi Genzyme. She has received research funding from Celgene, CorEvitas, Genentech/Roche, NINDS, and Sanofi Genzyme.
 

NASHVILLE, TENNESSEE — Individuals with multiple sclerosis are living longer, healthier lives. More than half of patients with MS are 55 years or older, and the incidence of late-onset MS is rising.

This can lead to complex treatment decisions, according to Amy Perrin Ross, APN, MSN, CNRN, MSCN, who is the neuroscience program coordinator at Loyola Medical Center in Maywood, Illinois.

“Age was ranked as the second most important factor affecting treatment decisions in a recent survey of MS specialists,” said Ms. Ross, during a presentation at the annual meeting of the Consortium of Multiple Sclerosis Centers. But there is little evidence to support treatment decisions, since there are few older patients enrolled in clinical trials. The average age is around 30-34 years.
 

MS in Older Patients

Aging is associated with immune system changes. There is a decline in inflammatory activity and an accompanying 17% reduction in the relapse rate with every 5 years of advancing age, and the majority of relapses occur within 30 years of onset. The bad news is that patients have reduced capacity to recover from relapses as they age.

“When I’m talking to patients about pros and cons [of treatment], I do mention that, yes, your relapse rate might be less, but as we age, we have less of an ability to completely recover,” said Ms. Ross.

The efficacy of disease-modifying therapies (DMTs) goes down with advancing age. One meta-analyis of 38 randomized trials and 13 therapies found that benefit with respect to disease progression generally disappeared by the age of 53. “Age is an essential modifier of drug efficacy,” said Ms. Ross.

On the other hand, another meta-analysis found that success in treating relapses was similar across age groups. “So it seems that we can successfully treat our patients’ relapses: There was no significant association between age and reductions in annualized relapse rate,” she said, though she noted that clinical trial populations are likely to be dissimilar to aging patients, many of whom have gone years without experiencing a relapse.

Aging can also lead to differences in potential adverse effects of DMTs. Patients with MS experience faster immunosenescence, in which normal changes to the innate and adaptive immune system are accelerated. This can lead to greater risk of infection, and other adverse events can include post-administration reactions and changes to serum IgG levels.

Other conditions that should be monitored for include progressive multifocal leukoencephalopathy, and malignancies are more prevalent among people with MS than the general population, although it is unclear if this is due to the use of DMTs or other factors, or even just coincidence, said Ms. Ross. “Those are all things to keep in mind as we’re pushing forward with therapy for patients,” she said.

Comorbidities that occur with aging can also affect treatment outcomes, and could tip the balance against use of DMTs in some situations.
 

What Does the Literature Say?

There has been a range of retrospective studies looking at the results of discontinuation of DMTs with advancing age, and the results have been mixed. Some factors are associated with greater likelihood of disease reactivation, including younger age, female sex, shorter duration without a relapse, MRI activity, and degree of disability.

A study of a French registry including patients aged 50 years and older who went off DMTs found that 100% of patients who discontinued therapy were on older injectable DMTs, and 34.9% of that group restarted therapy over a mean follow-up of 7 years. The risk of relapse or disability progression was similar between the groups, but discontinuers who started with Expanded Disability Status Scale (EDSS) scores lower than 6.0 were more likely to reach an EDSS score of 6.0.

The DISCOMS study compared 259 patients randomized to continue DMTs versus discontinuation of DMTs. “What they found was that noninferiority was not shown. Disease activity, such as relapses and new lesions, [occurred in] 12% of the discontinuers and 5% of the continuers,” said Ms. Ross.

One option to balance risk and benefit is DMT de-escalation, with the aim to match disease therapy with disease activity over time. A 2023 survey of 224 neurologists to identify characteristics in older patients that would prompt de-escalation. The most common reasons were overall safety or comorbidity concerns (62% endorsed), high risk of infection (59%), low disease activity or stable disease (50%), concerns about efficacy (41%), high disability (37%), and patient choice (36%). About 7% reported that they generally do not de-escalate.

The preferred de-escalation therapies included glatiramer acetate (29%), fumarates (27%), teriflunomide (23%), and interferon betas (21%).

Ms. Ross noted that the study was likely conducted around the height of the COVID-19 pandemic. “So I wonder if some of these results might be a little bit different [than if it was conducted at a different time],” she said.
 

Other Concerns and Options

During the Q&A session, one audience member asked if physicians should consider low-efficacy medications in older patients with the idea that they at least get a little bit of protection.

Patricia Coyle, MD, who also presented during the session, framed her response around whether the patient had relapsing or progressive MS. “If somebody has had relapsing MS and has never transitioned to progressive MS, and they’re 70, maybe they don’t need to be on any DMT. If there’s no longer a focal inflammatory relapsing phase, if we could feel confident on that possibility, then maybe they don’t need to be on a relapsing DMT,” said Dr. Coyle, who is director of the MS Comprehensive Care Center at Stony Brook University Medical Center in Stony Brook, New York.

Alternatively, if a patient has progressive MS, she said she would recommend discontinuing treatment if she believes the patient is being harmed by it, to focus instead on health and wellness.

Another questioner wondered what to do with a 70-year-old patient who has had no infections, has normal IgG, but insists on continuing high-efficacy B-cell therapy. Dr. Coyle responded that she would tell the patient that she believes it isn’t offering any benefit, but if the patient insisted, she would continue: “I’m not living with MS the way they are. If they tell me, ‘I believe it’s helping me and I want to stay on it,’ then so long as I don’t think I’m overtly harming them, I’m going to treat them.”

Ms. Ross agreed, and suggested that ceding to the patient’s will is an important consideration. “I think sometimes what we’re doing, if we’re not causing harm, what we’re doing is bolstering these people’s ability to continue to have hope, and that in my mind is a big part of managing their disease,” she said.

Ms. Ross has financial relationships with Alexion Pharmaceuticals, Amgen/Horizon, ArgenX, Banner, Bristol Myers Squibb, EMD Serono, Roche, Sandoz, TG Therapeutics, UCB, and Viatris. Dr. Coyle has consulted for Accordant, Amgen, Bristol Myers Squibb, EMD Serono, Genentech, GlaxoSmithKline, Horizon Therapeutics, LabCorp, Eli Lilly, Mylan, Novartis, and Sanofi Genzyme. She has received research funding from Celgene, CorEvitas, Genentech/Roche, NINDS, and Sanofi Genzyme.
 

NASHVILLE, TENNESSEE — Individuals with multiple sclerosis are living longer, healthier lives. More than half of patients with MS are 55 years or older, and the incidence of late-onset MS is rising.

This can lead to complex treatment decisions, according to Amy Perrin Ross, APN, MSN, CNRN, MSCN, who is the neuroscience program coordinator at Loyola Medical Center in Maywood, Illinois.

“Age was ranked as the second most important factor affecting treatment decisions in a recent survey of MS specialists,” said Ms. Ross, during a presentation at the annual meeting of the Consortium of Multiple Sclerosis Centers. But there is little evidence to support treatment decisions, since there are few older patients enrolled in clinical trials. The average age is around 30-34 years.
 

MS in Older Patients

Aging is associated with immune system changes. There is a decline in inflammatory activity and an accompanying 17% reduction in the relapse rate with every 5 years of advancing age, and the majority of relapses occur within 30 years of onset. The bad news is that patients have reduced capacity to recover from relapses as they age.

“When I’m talking to patients about pros and cons [of treatment], I do mention that, yes, your relapse rate might be less, but as we age, we have less of an ability to completely recover,” said Ms. Ross.

The efficacy of disease-modifying therapies (DMTs) goes down with advancing age. One meta-analyis of 38 randomized trials and 13 therapies found that benefit with respect to disease progression generally disappeared by the age of 53. “Age is an essential modifier of drug efficacy,” said Ms. Ross.

On the other hand, another meta-analysis found that success in treating relapses was similar across age groups. “So it seems that we can successfully treat our patients’ relapses: There was no significant association between age and reductions in annualized relapse rate,” she said, though she noted that clinical trial populations are likely to be dissimilar to aging patients, many of whom have gone years without experiencing a relapse.

Aging can also lead to differences in potential adverse effects of DMTs. Patients with MS experience faster immunosenescence, in which normal changes to the innate and adaptive immune system are accelerated. This can lead to greater risk of infection, and other adverse events can include post-administration reactions and changes to serum IgG levels.

Other conditions that should be monitored for include progressive multifocal leukoencephalopathy, and malignancies are more prevalent among people with MS than the general population, although it is unclear if this is due to the use of DMTs or other factors, or even just coincidence, said Ms. Ross. “Those are all things to keep in mind as we’re pushing forward with therapy for patients,” she said.

Comorbidities that occur with aging can also affect treatment outcomes, and could tip the balance against use of DMTs in some situations.
 

What Does the Literature Say?

There has been a range of retrospective studies looking at the results of discontinuation of DMTs with advancing age, and the results have been mixed. Some factors are associated with greater likelihood of disease reactivation, including younger age, female sex, shorter duration without a relapse, MRI activity, and degree of disability.

A study of a French registry including patients aged 50 years and older who went off DMTs found that 100% of patients who discontinued therapy were on older injectable DMTs, and 34.9% of that group restarted therapy over a mean follow-up of 7 years. The risk of relapse or disability progression was similar between the groups, but discontinuers who started with Expanded Disability Status Scale (EDSS) scores lower than 6.0 were more likely to reach an EDSS score of 6.0.

The DISCOMS study compared 259 patients randomized to continue DMTs versus discontinuation of DMTs. “What they found was that noninferiority was not shown. Disease activity, such as relapses and new lesions, [occurred in] 12% of the discontinuers and 5% of the continuers,” said Ms. Ross.

One option to balance risk and benefit is DMT de-escalation, with the aim to match disease therapy with disease activity over time. A 2023 survey of 224 neurologists to identify characteristics in older patients that would prompt de-escalation. The most common reasons were overall safety or comorbidity concerns (62% endorsed), high risk of infection (59%), low disease activity or stable disease (50%), concerns about efficacy (41%), high disability (37%), and patient choice (36%). About 7% reported that they generally do not de-escalate.

The preferred de-escalation therapies included glatiramer acetate (29%), fumarates (27%), teriflunomide (23%), and interferon betas (21%).

Ms. Ross noted that the study was likely conducted around the height of the COVID-19 pandemic. “So I wonder if some of these results might be a little bit different [than if it was conducted at a different time],” she said.
 

Other Concerns and Options

During the Q&A session, one audience member asked if physicians should consider low-efficacy medications in older patients with the idea that they at least get a little bit of protection.

Patricia Coyle, MD, who also presented during the session, framed her response around whether the patient had relapsing or progressive MS. “If somebody has had relapsing MS and has never transitioned to progressive MS, and they’re 70, maybe they don’t need to be on any DMT. If there’s no longer a focal inflammatory relapsing phase, if we could feel confident on that possibility, then maybe they don’t need to be on a relapsing DMT,” said Dr. Coyle, who is director of the MS Comprehensive Care Center at Stony Brook University Medical Center in Stony Brook, New York.

Alternatively, if a patient has progressive MS, she said she would recommend discontinuing treatment if she believes the patient is being harmed by it, to focus instead on health and wellness.

Another questioner wondered what to do with a 70-year-old patient who has had no infections, has normal IgG, but insists on continuing high-efficacy B-cell therapy. Dr. Coyle responded that she would tell the patient that she believes it isn’t offering any benefit, but if the patient insisted, she would continue: “I’m not living with MS the way they are. If they tell me, ‘I believe it’s helping me and I want to stay on it,’ then so long as I don’t think I’m overtly harming them, I’m going to treat them.”

Ms. Ross agreed, and suggested that ceding to the patient’s will is an important consideration. “I think sometimes what we’re doing, if we’re not causing harm, what we’re doing is bolstering these people’s ability to continue to have hope, and that in my mind is a big part of managing their disease,” she said.

Ms. Ross has financial relationships with Alexion Pharmaceuticals, Amgen/Horizon, ArgenX, Banner, Bristol Myers Squibb, EMD Serono, Roche, Sandoz, TG Therapeutics, UCB, and Viatris. Dr. Coyle has consulted for Accordant, Amgen, Bristol Myers Squibb, EMD Serono, Genentech, GlaxoSmithKline, Horizon Therapeutics, LabCorp, Eli Lilly, Mylan, Novartis, and Sanofi Genzyme. She has received research funding from Celgene, CorEvitas, Genentech/Roche, NINDS, and Sanofi Genzyme.
 

CHICAGO — At the 2024 AGA Tech Summit, held April 11-12 at the Chicago headquarters of MATTER, a global healthcare startup incubator, five companies made their pitch to be the winner of the Shark Tank competition that recognizes an outstanding tech start up in the gastroenterology field.

After the companies’ rapid-fire pitches and Q&A sessions, four judges convened to determine a winner and returned to make an announcement.

The winner was Arithmedics, which uses AI technology to automate billing codes. Founder Venthan Elango, PhD, has worked as a software engineer at Google, Urban Engines, and Georgia Tech, and his wife of 17 years is Renumathy Dhanasekaran, MD, PhD, a gastroenterologist and assistant professor of medicine at Stanford (California) University.

Their marriage has brought a unique perspective, according to Dr. Elango. “There isn’t a single day that goes by when she talks to me about the inefficiencies in healthcare, and then I say, ‘this can be easily solved with a software solution,’ ” he said.

Arithmedics

Stanford University

• Aspero Medical: Balloon overtube that maximizes frictional properties to improve mucosal wall traction and anchoring consistency. (Voted ‘fan favorite’ by AGA Tech Summit attendees)
• Aurora Medical Technologies: Minimally invasive, guided, tissue-anchoring suturing system for complex endoscopic procedures.
• Ergami Endoscopy: Flexible overtube capable of automatic insertion and fixation in the colon, which could potentially eliminate sedation and prevent endoscopic injuries to the physician.
• Lazurite: Wireless surgical camera that eliminates the need for light or video cables, avoiding the associated fire, trip, and contamination hazards.

The judges were swayed by Arithmedics’ practical solution to a widespread problem. “There is for sure a need in terms of inaccurate billing and billing codes that are wrong. There’s lost revenue for physicians around that. So I think we were really focused from a judging standpoint on the fact that their solution was filling truly an unmet need,” said judge Andrea Vossler, a managing director of Varia Ventures, which has partnered with AGA to launch and manage the GI Opportunity Fund, an AGA-member venture fund.

“We were really focused on how to assist physicians in terms of supporting their practices, and really changing what you’re doing. I think AI has the ability to do that, so we liked that about the company,” she added.

The company is an example of how AI is poised to alter healthcare, according to Ms. Vossler. “I think it’s massive. I think we’re at the very beginning of its impact on healthcare,” she said.

Another judge had a similar view. “They won because there is a screaming need to fix billing. So, it’s well known that lots of money is indeed lost in billing practices, which are stressful for office personnel and stressful for physicians. They can fulfill a long-standing need, and we thought that that was the success story,” said Christopher Gostout, MD, emeritus professor of medicine at Mayo Clinic in Rochester, Minnesota.

Dr. Gostout offered advice for gastroenterologists and other physicians interested in starting tech companies. It’s imperative to be a realist, he said. “Is there a real market for it, or [is it just] a niche market? Does your device have legs — can it expand and can evolve into other [spin-off] products? These are things you need to think about because one-offs or single-trick ponies are pretty hard to move along now,” said Dr. Gostout.

He recommended that entrepreneurs apply for Small Business Innovation Research (SBIR) grants. “I think it’s a great opportunity to bring in money and get the ball rolling.”

Finally, he advised entrepreneurs to be thoughtful about their advisory groups. Founders may be tempted to find the highest profile names they can to give the business gravitas, but those big names may not have the best knowledge base to understand the problems that the technology is meant to address. “I’ve seen businesses fail because they went for marquee names that really were not helpful, and they didn’t do their due diligence in seeking out really useful value. You don’t need a lot of advisers, just a couple of really good ones,” said Dr. Gostout.

The summit was sponsored by the AGA Center for GI Innovation and Technology.

Dr. Gostout has founded and advises AdaptivEndo and Lean Medical. He is a consultant to Boston Scientific. Dr. Dhanasekaran has no financial disclosures. Ms. Vossler is an employee of Varia Ventures, which is an investment partner to AGA. Dr. Elango is an employee of Arithmedics.

CHICAGO — At the 2024 AGA Tech Summit, held April 11-12 at the Chicago headquarters of MATTER, a global healthcare startup incubator, five companies made their pitch to be the winner of the Shark Tank competition that recognizes an outstanding tech start up in the gastroenterology field.

After the companies’ rapid-fire pitches and Q&A sessions, four judges convened to determine a winner and returned to make an announcement.

The winner was Arithmedics, which uses AI technology to automate billing codes. Founder Venthan Elango, PhD, has worked as a software engineer at Google, Urban Engines, and Georgia Tech, and his wife of 17 years is Renumathy Dhanasekaran, MD, PhD, a gastroenterologist and assistant professor of medicine at Stanford (California) University.

Their marriage has brought a unique perspective, according to Dr. Elango. “There isn’t a single day that goes by when she talks to me about the inefficiencies in healthcare, and then I say, ‘this can be easily solved with a software solution,’ ” he said.

Arithmedics

Stanford University

• Aspero Medical: Balloon overtube that maximizes frictional properties to improve mucosal wall traction and anchoring consistency. (Voted ‘fan favorite’ by AGA Tech Summit attendees)
• Aurora Medical Technologies: Minimally invasive, guided, tissue-anchoring suturing system for complex endoscopic procedures.
• Ergami Endoscopy: Flexible overtube capable of automatic insertion and fixation in the colon, which could potentially eliminate sedation and prevent endoscopic injuries to the physician.
• Lazurite: Wireless surgical camera that eliminates the need for light or video cables, avoiding the associated fire, trip, and contamination hazards.

The judges were swayed by Arithmedics’ practical solution to a widespread problem. “There is for sure a need in terms of inaccurate billing and billing codes that are wrong. There’s lost revenue for physicians around that. So I think we were really focused from a judging standpoint on the fact that their solution was filling truly an unmet need,” said judge Andrea Vossler, a managing director of Varia Ventures, which has partnered with AGA to launch and manage the GI Opportunity Fund, an AGA-member venture fund.

“We were really focused on how to assist physicians in terms of supporting their practices, and really changing what you’re doing. I think AI has the ability to do that, so we liked that about the company,” she added.

The company is an example of how AI is poised to alter healthcare, according to Ms. Vossler. “I think it’s massive. I think we’re at the very beginning of its impact on healthcare,” she said.

Another judge had a similar view. “They won because there is a screaming need to fix billing. So, it’s well known that lots of money is indeed lost in billing practices, which are stressful for office personnel and stressful for physicians. They can fulfill a long-standing need, and we thought that that was the success story,” said Christopher Gostout, MD, emeritus professor of medicine at Mayo Clinic in Rochester, Minnesota.

Dr. Gostout offered advice for gastroenterologists and other physicians interested in starting tech companies. It’s imperative to be a realist, he said. “Is there a real market for it, or [is it just] a niche market? Does your device have legs — can it expand and can evolve into other [spin-off] products? These are things you need to think about because one-offs or single-trick ponies are pretty hard to move along now,” said Dr. Gostout.

He recommended that entrepreneurs apply for Small Business Innovation Research (SBIR) grants. “I think it’s a great opportunity to bring in money and get the ball rolling.”

Finally, he advised entrepreneurs to be thoughtful about their advisory groups. Founders may be tempted to find the highest profile names they can to give the business gravitas, but those big names may not have the best knowledge base to understand the problems that the technology is meant to address. “I’ve seen businesses fail because they went for marquee names that really were not helpful, and they didn’t do their due diligence in seeking out really useful value. You don’t need a lot of advisers, just a couple of really good ones,” said Dr. Gostout.

The summit was sponsored by the AGA Center for GI Innovation and Technology.

Dr. Gostout has founded and advises AdaptivEndo and Lean Medical. He is a consultant to Boston Scientific. Dr. Dhanasekaran has no financial disclosures. Ms. Vossler is an employee of Varia Ventures, which is an investment partner to AGA. Dr. Elango is an employee of Arithmedics.

CHICAGO — At the 2024 AGA Tech Summit, held April 11-12 at the Chicago headquarters of MATTER, a global healthcare startup incubator, five companies made their pitch to be the winner of the Shark Tank competition that recognizes an outstanding tech start up in the gastroenterology field.

After the companies’ rapid-fire pitches and Q&A sessions, four judges convened to determine a winner and returned to make an announcement.

The winner was Arithmedics, which uses AI technology to automate billing codes. Founder Venthan Elango, PhD, has worked as a software engineer at Google, Urban Engines, and Georgia Tech, and his wife of 17 years is Renumathy Dhanasekaran, MD, PhD, a gastroenterologist and assistant professor of medicine at Stanford (California) University.

Their marriage has brought a unique perspective, according to Dr. Elango. “There isn’t a single day that goes by when she talks to me about the inefficiencies in healthcare, and then I say, ‘this can be easily solved with a software solution,’ ” he said.

Arithmedics

Stanford University

• Aspero Medical: Balloon overtube that maximizes frictional properties to improve mucosal wall traction and anchoring consistency. (Voted ‘fan favorite’ by AGA Tech Summit attendees)
• Aurora Medical Technologies: Minimally invasive, guided, tissue-anchoring suturing system for complex endoscopic procedures.
• Ergami Endoscopy: Flexible overtube capable of automatic insertion and fixation in the colon, which could potentially eliminate sedation and prevent endoscopic injuries to the physician.
• Lazurite: Wireless surgical camera that eliminates the need for light or video cables, avoiding the associated fire, trip, and contamination hazards.

The judges were swayed by Arithmedics’ practical solution to a widespread problem. “There is for sure a need in terms of inaccurate billing and billing codes that are wrong. There’s lost revenue for physicians around that. So I think we were really focused from a judging standpoint on the fact that their solution was filling truly an unmet need,” said judge Andrea Vossler, a managing director of Varia Ventures, which has partnered with AGA to launch and manage the GI Opportunity Fund, an AGA-member venture fund.

“We were really focused on how to assist physicians in terms of supporting their practices, and really changing what you’re doing. I think AI has the ability to do that, so we liked that about the company,” she added.

The company is an example of how AI is poised to alter healthcare, according to Ms. Vossler. “I think it’s massive. I think we’re at the very beginning of its impact on healthcare,” she said.

Another judge had a similar view. “They won because there is a screaming need to fix billing. So, it’s well known that lots of money is indeed lost in billing practices, which are stressful for office personnel and stressful for physicians. They can fulfill a long-standing need, and we thought that that was the success story,” said Christopher Gostout, MD, emeritus professor of medicine at Mayo Clinic in Rochester, Minnesota.

Dr. Gostout offered advice for gastroenterologists and other physicians interested in starting tech companies. It’s imperative to be a realist, he said. “Is there a real market for it, or [is it just] a niche market? Does your device have legs — can it expand and can evolve into other [spin-off] products? These are things you need to think about because one-offs or single-trick ponies are pretty hard to move along now,” said Dr. Gostout.

He recommended that entrepreneurs apply for Small Business Innovation Research (SBIR) grants. “I think it’s a great opportunity to bring in money and get the ball rolling.”

Finally, he advised entrepreneurs to be thoughtful about their advisory groups. Founders may be tempted to find the highest profile names they can to give the business gravitas, but those big names may not have the best knowledge base to understand the problems that the technology is meant to address. “I’ve seen businesses fail because they went for marquee names that really were not helpful, and they didn’t do their due diligence in seeking out really useful value. You don’t need a lot of advisers, just a couple of really good ones,” said Dr. Gostout.

The summit was sponsored by the AGA Center for GI Innovation and Technology.

Dr. Gostout has founded and advises AdaptivEndo and Lean Medical. He is a consultant to Boston Scientific. Dr. Dhanasekaran has no financial disclosures. Ms. Vossler is an employee of Varia Ventures, which is an investment partner to AGA. Dr. Elango is an employee of Arithmedics.

DENVER — A retrospective analysis of pediatric patients with Lennox-Gastaut syndrome (LGS) suggests that the antiseizure medication cenobamate (SK Life Sciences) in combination with existing lines of therapy may be associated with fewer hospital in-patient days and emergency room visits. The conclusions were reached by comparing outcomes to patient historical data, though they were not analyzed statistically.

A Proof-of-Concept Study

In an interview, Karen Keough, MD, who presented the study during a poster session at the 2024 annual meeting of the American Academy of Neurology, conceded the key limitation was that the researchers were not able to perform statistical analysis due to the nature of the data. “It’s just showing trends. It’s proof of concept that cenobamate can be effective in one of the most refractory forms of epilepsy, which always includes focal seizures. That’s what led to the initial FDA indication, but we also know that this medication has a lot of promise and is probably going to be effective in other forms of epilepsy and probably in other seizure types,” said Dr. Keough, who is a neurologist at Pediatrix Child Neurology Consultants of Austin, Texas.

Although she has seen significant improvements in many patients, Dr. Keough reported that most patients become refractory again. “Unfortunately, honeymoons are probably real in cenobamate. Continuing to follow those patients as I do, since they’re my own patients, I have quite a few who had more than a year of seizure freedom, [but] their seizures are back, though not as bad as they were before cenobamate. I just can’t get them back to that 100% control category. I do have a few that are still in the 100% control category, but not very many,” she said.

She also presented a retrospective chart review of 36 LGS patients between the ages of 1 and 27 years at the American Epilepsy Society in December 2023, which showed that addition of cenobamate was associated with a reduction in seizure frequency in 85% of patients. “It was a profound number of patients who had long periods of seizure freedom,” she said.
 

A Promising Treatment Option

Dr. Keough is considering moving cenobamate up in the treatment sequence of new LGS patients. “I don’t use cenobamate first line in anyone because we have good first-line agents for simple epilepsy in Lennox-Gastaut, but I’m bringing out cenobamate pretty early in the course, because I do think it has superior efficacy compared with most other drugs that we have available. Most of my patients are very established and they’ve seen lots of other drugs. For many patients, there are only a couple of drugs left on the list that [they] have never tried, but we’re going to put cenobamate at the top of that. For my newer diagnoses, I’m going to bring it out much earlier,” she said, though other drugs such as clobazam (Onfi) would still rank ahead of cenobamate.

The study was drawn from records of the HealthVerity Marketplace Database, which includes more than 150 commercial, Medicare, and Medicaid payers. It included 76 patients aged 17 or under who took at least one antiseizure medication between May 2020 and December 2022, and who had filled at least two prescriptions of cenobamate and had 180 or more days of medical and pharmacy enrollment. The mean age was 13.4 years (5.3% 0-5 years, 15.8% 6-11 years, 78.9% 12-17 years), and 40.8% were female. Seizure types included absence (17.1%), focal (75.0%), and generalized tonic-clonic (86.8%). All patients had a history of intractable seizures, 80.3% had a history of status epilepticus, and 28.9% had a history of infantile seizures. A little more than one fourth (27.6%) of patients had commercial insurance. In the previous 90 days, 21.1% had had an emergency room visit or in-patient hospital stay.

Common antiseizure medications taken with cenobamate included cannabidiol (n = 14), clobazam (n = 8), and levetiracetam (n = 18).

During the cenobamate treatment period, patients had a lower incidence of epilepsy-related inpatient days per year (3.36 vs 3.94), epilepsy-related ER visits per year (0.66 vs 1.19), and likelihood of requiring a new line of epilepsy therapy (35.5% vs 100%).
 

‘Promising’ Results, but More Research Is Needed

The fact that cenobamate was used in combination with other therapies, plus the lack of a control group, makes it difficult to determine if cenobamate was actually responsible for the improvements, according to Nassim Zecavati, MD, who was asked for comment on the study. “I think the results are promising, but there’s obviously a need for a randomized, controlled trial to understand whether it was this medication or the combination of cenobamate with [other medications]. How do we know that this isn’t a compound effect, that it’s multifactorial, and a combination of multiple medications versus the cenobamate?” she said.

Still, she noted that LGS patients are highly vulnerable to hospital admissions and status epilepticus, making the parameters examined in the study valid and important. “I think that this drug likely has a role in the treatment of patients with LGS, particularly pediatric patients. I think we just need more data,” said Dr. Zecavati, who is director of Epilepsy at the Children’s Hospital of Richmond in Virginia and associate professor of Neurology at Virginia Commonwealth University.

Dr. Keough is a speaker for SK Life Sciences. Dr. Zecavati has no relevant financial disclosures.

DENVER — A retrospective analysis of pediatric patients with Lennox-Gastaut syndrome (LGS) suggests that the antiseizure medication cenobamate (SK Life Sciences) in combination with existing lines of therapy may be associated with fewer hospital in-patient days and emergency room visits. The conclusions were reached by comparing outcomes to patient historical data, though they were not analyzed statistically.

A Proof-of-Concept Study

In an interview, Karen Keough, MD, who presented the study during a poster session at the 2024 annual meeting of the American Academy of Neurology, conceded the key limitation was that the researchers were not able to perform statistical analysis due to the nature of the data. “It’s just showing trends. It’s proof of concept that cenobamate can be effective in one of the most refractory forms of epilepsy, which always includes focal seizures. That’s what led to the initial FDA indication, but we also know that this medication has a lot of promise and is probably going to be effective in other forms of epilepsy and probably in other seizure types,” said Dr. Keough, who is a neurologist at Pediatrix Child Neurology Consultants of Austin, Texas.

Although she has seen significant improvements in many patients, Dr. Keough reported that most patients become refractory again. “Unfortunately, honeymoons are probably real in cenobamate. Continuing to follow those patients as I do, since they’re my own patients, I have quite a few who had more than a year of seizure freedom, [but] their seizures are back, though not as bad as they were before cenobamate. I just can’t get them back to that 100% control category. I do have a few that are still in the 100% control category, but not very many,” she said.

She also presented a retrospective chart review of 36 LGS patients between the ages of 1 and 27 years at the American Epilepsy Society in December 2023, which showed that addition of cenobamate was associated with a reduction in seizure frequency in 85% of patients. “It was a profound number of patients who had long periods of seizure freedom,” she said.
 

A Promising Treatment Option

Dr. Keough is considering moving cenobamate up in the treatment sequence of new LGS patients. “I don’t use cenobamate first line in anyone because we have good first-line agents for simple epilepsy in Lennox-Gastaut, but I’m bringing out cenobamate pretty early in the course, because I do think it has superior efficacy compared with most other drugs that we have available. Most of my patients are very established and they’ve seen lots of other drugs. For many patients, there are only a couple of drugs left on the list that [they] have never tried, but we’re going to put cenobamate at the top of that. For my newer diagnoses, I’m going to bring it out much earlier,” she said, though other drugs such as clobazam (Onfi) would still rank ahead of cenobamate.

The study was drawn from records of the HealthVerity Marketplace Database, which includes more than 150 commercial, Medicare, and Medicaid payers. It included 76 patients aged 17 or under who took at least one antiseizure medication between May 2020 and December 2022, and who had filled at least two prescriptions of cenobamate and had 180 or more days of medical and pharmacy enrollment. The mean age was 13.4 years (5.3% 0-5 years, 15.8% 6-11 years, 78.9% 12-17 years), and 40.8% were female. Seizure types included absence (17.1%), focal (75.0%), and generalized tonic-clonic (86.8%). All patients had a history of intractable seizures, 80.3% had a history of status epilepticus, and 28.9% had a history of infantile seizures. A little more than one fourth (27.6%) of patients had commercial insurance. In the previous 90 days, 21.1% had had an emergency room visit or in-patient hospital stay.

Common antiseizure medications taken with cenobamate included cannabidiol (n = 14), clobazam (n = 8), and levetiracetam (n = 18).

During the cenobamate treatment period, patients had a lower incidence of epilepsy-related inpatient days per year (3.36 vs 3.94), epilepsy-related ER visits per year (0.66 vs 1.19), and likelihood of requiring a new line of epilepsy therapy (35.5% vs 100%).
 

‘Promising’ Results, but More Research Is Needed

The fact that cenobamate was used in combination with other therapies, plus the lack of a control group, makes it difficult to determine if cenobamate was actually responsible for the improvements, according to Nassim Zecavati, MD, who was asked for comment on the study. “I think the results are promising, but there’s obviously a need for a randomized, controlled trial to understand whether it was this medication or the combination of cenobamate with [other medications]. How do we know that this isn’t a compound effect, that it’s multifactorial, and a combination of multiple medications versus the cenobamate?” she said.

Still, she noted that LGS patients are highly vulnerable to hospital admissions and status epilepticus, making the parameters examined in the study valid and important. “I think that this drug likely has a role in the treatment of patients with LGS, particularly pediatric patients. I think we just need more data,” said Dr. Zecavati, who is director of Epilepsy at the Children’s Hospital of Richmond in Virginia and associate professor of Neurology at Virginia Commonwealth University.

Dr. Keough is a speaker for SK Life Sciences. Dr. Zecavati has no relevant financial disclosures.

DENVER — A retrospective analysis of pediatric patients with Lennox-Gastaut syndrome (LGS) suggests that the antiseizure medication cenobamate (SK Life Sciences) in combination with existing lines of therapy may be associated with fewer hospital in-patient days and emergency room visits. The conclusions were reached by comparing outcomes to patient historical data, though they were not analyzed statistically.

A Proof-of-Concept Study

In an interview, Karen Keough, MD, who presented the study during a poster session at the 2024 annual meeting of the American Academy of Neurology, conceded the key limitation was that the researchers were not able to perform statistical analysis due to the nature of the data. “It’s just showing trends. It’s proof of concept that cenobamate can be effective in one of the most refractory forms of epilepsy, which always includes focal seizures. That’s what led to the initial FDA indication, but we also know that this medication has a lot of promise and is probably going to be effective in other forms of epilepsy and probably in other seizure types,” said Dr. Keough, who is a neurologist at Pediatrix Child Neurology Consultants of Austin, Texas.

Although she has seen significant improvements in many patients, Dr. Keough reported that most patients become refractory again. “Unfortunately, honeymoons are probably real in cenobamate. Continuing to follow those patients as I do, since they’re my own patients, I have quite a few who had more than a year of seizure freedom, [but] their seizures are back, though not as bad as they were before cenobamate. I just can’t get them back to that 100% control category. I do have a few that are still in the 100% control category, but not very many,” she said.

She also presented a retrospective chart review of 36 LGS patients between the ages of 1 and 27 years at the American Epilepsy Society in December 2023, which showed that addition of cenobamate was associated with a reduction in seizure frequency in 85% of patients. “It was a profound number of patients who had long periods of seizure freedom,” she said.
 

A Promising Treatment Option

Dr. Keough is considering moving cenobamate up in the treatment sequence of new LGS patients. “I don’t use cenobamate first line in anyone because we have good first-line agents for simple epilepsy in Lennox-Gastaut, but I’m bringing out cenobamate pretty early in the course, because I do think it has superior efficacy compared with most other drugs that we have available. Most of my patients are very established and they’ve seen lots of other drugs. For many patients, there are only a couple of drugs left on the list that [they] have never tried, but we’re going to put cenobamate at the top of that. For my newer diagnoses, I’m going to bring it out much earlier,” she said, though other drugs such as clobazam (Onfi) would still rank ahead of cenobamate.

The study was drawn from records of the HealthVerity Marketplace Database, which includes more than 150 commercial, Medicare, and Medicaid payers. It included 76 patients aged 17 or under who took at least one antiseizure medication between May 2020 and December 2022, and who had filled at least two prescriptions of cenobamate and had 180 or more days of medical and pharmacy enrollment. The mean age was 13.4 years (5.3% 0-5 years, 15.8% 6-11 years, 78.9% 12-17 years), and 40.8% were female. Seizure types included absence (17.1%), focal (75.0%), and generalized tonic-clonic (86.8%). All patients had a history of intractable seizures, 80.3% had a history of status epilepticus, and 28.9% had a history of infantile seizures. A little more than one fourth (27.6%) of patients had commercial insurance. In the previous 90 days, 21.1% had had an emergency room visit or in-patient hospital stay.

Common antiseizure medications taken with cenobamate included cannabidiol (n = 14), clobazam (n = 8), and levetiracetam (n = 18).

During the cenobamate treatment period, patients had a lower incidence of epilepsy-related inpatient days per year (3.36 vs 3.94), epilepsy-related ER visits per year (0.66 vs 1.19), and likelihood of requiring a new line of epilepsy therapy (35.5% vs 100%).
 

‘Promising’ Results, but More Research Is Needed

The fact that cenobamate was used in combination with other therapies, plus the lack of a control group, makes it difficult to determine if cenobamate was actually responsible for the improvements, according to Nassim Zecavati, MD, who was asked for comment on the study. “I think the results are promising, but there’s obviously a need for a randomized, controlled trial to understand whether it was this medication or the combination of cenobamate with [other medications]. How do we know that this isn’t a compound effect, that it’s multifactorial, and a combination of multiple medications versus the cenobamate?” she said.

Still, she noted that LGS patients are highly vulnerable to hospital admissions and status epilepticus, making the parameters examined in the study valid and important. “I think that this drug likely has a role in the treatment of patients with LGS, particularly pediatric patients. I think we just need more data,” said Dr. Zecavati, who is director of Epilepsy at the Children’s Hospital of Richmond in Virginia and associate professor of Neurology at Virginia Commonwealth University.

Dr. Keough is a speaker for SK Life Sciences. Dr. Zecavati has no relevant financial disclosures.

DENVER — Among patients with major depressive disorder, transcranial magnetic stimulation (TMS) had similar efficacy to electroconvulsive therapy (ECT), according to results from a retrospective study of patients treated in the past 20 years.

“We always learn in our textbooks that after about two or three medication trials is when you can start exploring more serious treatment protocols, such as ECT or TMS, but a lot of these patients weren’t going forward with it, and I was curious about it. I figured that TMS, which is a less expensive, less scary procedure that patients would more likely be open to, that is also approved for treatment resistant depression, would be a good alternative to ECT,” said Anuttham Kandhadai, a third-year medical student at University of Texas Medical Branch at Galveston, who presented the study at the 2024 annual meeting of the American Academy of Neurology.
 

Study Findings Lead to More Questions

The researchers found lower rates of depressive episodes, suicidal attempts, and suicidal ideation among patients treated with TMS, but an important limitation was that the researchers did not know the severity of the depression in the two patient groups, according to Branch Coslett, MD, who attended the session and has performed research with TMS to treat aphasia in stroke patients. “I think it’s a very interesting study, and certainly something worth pursuing, but given that ECT is only used as a last resort, whereas TMS is often used as a second-line therapy, I think you’re really talking about very different populations that have had these treatments,” said Dr. Coslett.

Mr. Kandhadai recognized the limitations of the study and looks forward to expanding the research. “I’d love to explore cost effectiveness of the treatments. I’d love to explore patient familiarity and patient comfort with different treatments. And I’d also love to explore a more controlled study that can determine how severe someone’s depression is, and then be able to control for that and explore the outcomes based on the treatment protocol,” he said.

The ideal comparative study would be prospective, “but that will never be done. One Flew Over the Cuckoo’s Nest and similar sources of information have really poisoned the well,” said Dr. Coslett. However, he noted that advances have been made in ECT, and that targeting the right hemisphere produces fewer side effects: “The outcomes from unilateral right hemisphere stimulation are said to be every bit as good or maybe better, and you don’t get the confusion, you don’t get the memory loss, you don’t get all that sort of stuff that you’d expect when somebody has a prolonged, generalized tonic-clonic seizure.”

Still, people are naturally reluctant to undergo ECT. “I’ve seen it. It’s pretty barbaric. It’s better now and at my institution, people do get it, but they really, really have to be intractable,” he said.
 

Comparing Treatment Options

Mr. Kandhadai and his co-authors used the TriNetX database to identify patients with treatment-resistant major depressive disorder who received TMS or ECT in the past 20 years. There were 2,916 patients in both cohorts, who were matched by age, sex, ethnicity, mood and behavioral disorders, endocrine disorders, intellectual disabilities, cerebrovascular disease, and other nervous system disorders. The mean age at treatment was 48.2 years, 38.5% were male, and 3.1% were Black or African American.

Short-term outcomes favored TMS, including the frequency of disorientation (0.41% vs 2.81%), retrograde amnesia (0.34% vs 0.65%), and headache (4.36% vs 7.20%). Long-term outcomes from 1 month to 5 years post treatment were also better in the TMS group, including depressive episodes (44.99% vs 53.77%), suicide attempts (3.98% vs 6.86%), and suicidal ideation (12.38% vs 23.49%). Kaplan-Meier curve analysis between 1 month and 5 years showed a benefit to TMS in probability of not experiencing a depressive episode, and not experiencing suicidal ideation.

“ECT has been the gold standard of treatment resistant depression for a long time, and it deserves to be. I think it’s something you should offer your patients. Not everyone might be comfortable with it, and if they’re not, I think it’s important to not stop the conversation there, but to offer something like TMS because TMS is something that might be more accessible to patients. It might be more affordable, and it might be less scary,” said Mr. Kandhadai

Mr. Kandhadai and Dr. Coslett have no relevant financial disclosures.

DENVER — Among patients with major depressive disorder, transcranial magnetic stimulation (TMS) had similar efficacy to electroconvulsive therapy (ECT), according to results from a retrospective study of patients treated in the past 20 years.

“We always learn in our textbooks that after about two or three medication trials is when you can start exploring more serious treatment protocols, such as ECT or TMS, but a lot of these patients weren’t going forward with it, and I was curious about it. I figured that TMS, which is a less expensive, less scary procedure that patients would more likely be open to, that is also approved for treatment resistant depression, would be a good alternative to ECT,” said Anuttham Kandhadai, a third-year medical student at University of Texas Medical Branch at Galveston, who presented the study at the 2024 annual meeting of the American Academy of Neurology.
 

Study Findings Lead to More Questions

The researchers found lower rates of depressive episodes, suicidal attempts, and suicidal ideation among patients treated with TMS, but an important limitation was that the researchers did not know the severity of the depression in the two patient groups, according to Branch Coslett, MD, who attended the session and has performed research with TMS to treat aphasia in stroke patients. “I think it’s a very interesting study, and certainly something worth pursuing, but given that ECT is only used as a last resort, whereas TMS is often used as a second-line therapy, I think you’re really talking about very different populations that have had these treatments,” said Dr. Coslett.

Mr. Kandhadai recognized the limitations of the study and looks forward to expanding the research. “I’d love to explore cost effectiveness of the treatments. I’d love to explore patient familiarity and patient comfort with different treatments. And I’d also love to explore a more controlled study that can determine how severe someone’s depression is, and then be able to control for that and explore the outcomes based on the treatment protocol,” he said.

The ideal comparative study would be prospective, “but that will never be done. One Flew Over the Cuckoo’s Nest and similar sources of information have really poisoned the well,” said Dr. Coslett. However, he noted that advances have been made in ECT, and that targeting the right hemisphere produces fewer side effects: “The outcomes from unilateral right hemisphere stimulation are said to be every bit as good or maybe better, and you don’t get the confusion, you don’t get the memory loss, you don’t get all that sort of stuff that you’d expect when somebody has a prolonged, generalized tonic-clonic seizure.”

Still, people are naturally reluctant to undergo ECT. “I’ve seen it. It’s pretty barbaric. It’s better now and at my institution, people do get it, but they really, really have to be intractable,” he said.
 

Comparing Treatment Options

Mr. Kandhadai and his co-authors used the TriNetX database to identify patients with treatment-resistant major depressive disorder who received TMS or ECT in the past 20 years. There were 2,916 patients in both cohorts, who were matched by age, sex, ethnicity, mood and behavioral disorders, endocrine disorders, intellectual disabilities, cerebrovascular disease, and other nervous system disorders. The mean age at treatment was 48.2 years, 38.5% were male, and 3.1% were Black or African American.

Short-term outcomes favored TMS, including the frequency of disorientation (0.41% vs 2.81%), retrograde amnesia (0.34% vs 0.65%), and headache (4.36% vs 7.20%). Long-term outcomes from 1 month to 5 years post treatment were also better in the TMS group, including depressive episodes (44.99% vs 53.77%), suicide attempts (3.98% vs 6.86%), and suicidal ideation (12.38% vs 23.49%). Kaplan-Meier curve analysis between 1 month and 5 years showed a benefit to TMS in probability of not experiencing a depressive episode, and not experiencing suicidal ideation.

“ECT has been the gold standard of treatment resistant depression for a long time, and it deserves to be. I think it’s something you should offer your patients. Not everyone might be comfortable with it, and if they’re not, I think it’s important to not stop the conversation there, but to offer something like TMS because TMS is something that might be more accessible to patients. It might be more affordable, and it might be less scary,” said Mr. Kandhadai

Mr. Kandhadai and Dr. Coslett have no relevant financial disclosures.

DENVER — Among patients with major depressive disorder, transcranial magnetic stimulation (TMS) had similar efficacy to electroconvulsive therapy (ECT), according to results from a retrospective study of patients treated in the past 20 years.

“We always learn in our textbooks that after about two or three medication trials is when you can start exploring more serious treatment protocols, such as ECT or TMS, but a lot of these patients weren’t going forward with it, and I was curious about it. I figured that TMS, which is a less expensive, less scary procedure that patients would more likely be open to, that is also approved for treatment resistant depression, would be a good alternative to ECT,” said Anuttham Kandhadai, a third-year medical student at University of Texas Medical Branch at Galveston, who presented the study at the 2024 annual meeting of the American Academy of Neurology.
 

Study Findings Lead to More Questions

The researchers found lower rates of depressive episodes, suicidal attempts, and suicidal ideation among patients treated with TMS, but an important limitation was that the researchers did not know the severity of the depression in the two patient groups, according to Branch Coslett, MD, who attended the session and has performed research with TMS to treat aphasia in stroke patients. “I think it’s a very interesting study, and certainly something worth pursuing, but given that ECT is only used as a last resort, whereas TMS is often used as a second-line therapy, I think you’re really talking about very different populations that have had these treatments,” said Dr. Coslett.

Mr. Kandhadai recognized the limitations of the study and looks forward to expanding the research. “I’d love to explore cost effectiveness of the treatments. I’d love to explore patient familiarity and patient comfort with different treatments. And I’d also love to explore a more controlled study that can determine how severe someone’s depression is, and then be able to control for that and explore the outcomes based on the treatment protocol,” he said.

The ideal comparative study would be prospective, “but that will never be done. One Flew Over the Cuckoo’s Nest and similar sources of information have really poisoned the well,” said Dr. Coslett. However, he noted that advances have been made in ECT, and that targeting the right hemisphere produces fewer side effects: “The outcomes from unilateral right hemisphere stimulation are said to be every bit as good or maybe better, and you don’t get the confusion, you don’t get the memory loss, you don’t get all that sort of stuff that you’d expect when somebody has a prolonged, generalized tonic-clonic seizure.”

Still, people are naturally reluctant to undergo ECT. “I’ve seen it. It’s pretty barbaric. It’s better now and at my institution, people do get it, but they really, really have to be intractable,” he said.
 

Comparing Treatment Options

Mr. Kandhadai and his co-authors used the TriNetX database to identify patients with treatment-resistant major depressive disorder who received TMS or ECT in the past 20 years. There were 2,916 patients in both cohorts, who were matched by age, sex, ethnicity, mood and behavioral disorders, endocrine disorders, intellectual disabilities, cerebrovascular disease, and other nervous system disorders. The mean age at treatment was 48.2 years, 38.5% were male, and 3.1% were Black or African American.

Short-term outcomes favored TMS, including the frequency of disorientation (0.41% vs 2.81%), retrograde amnesia (0.34% vs 0.65%), and headache (4.36% vs 7.20%). Long-term outcomes from 1 month to 5 years post treatment were also better in the TMS group, including depressive episodes (44.99% vs 53.77%), suicide attempts (3.98% vs 6.86%), and suicidal ideation (12.38% vs 23.49%). Kaplan-Meier curve analysis between 1 month and 5 years showed a benefit to TMS in probability of not experiencing a depressive episode, and not experiencing suicidal ideation.

“ECT has been the gold standard of treatment resistant depression for a long time, and it deserves to be. I think it’s something you should offer your patients. Not everyone might be comfortable with it, and if they’re not, I think it’s important to not stop the conversation there, but to offer something like TMS because TMS is something that might be more accessible to patients. It might be more affordable, and it might be less scary,” said Mr. Kandhadai

Mr. Kandhadai and Dr. Coslett have no relevant financial disclosures.

DENVER — A first-in-class monoclonal antibody (riliprubart, Sanofi) that inhibits complement activation showed good activity versus IVIG in chronic inflammatory demyelinating polyneuropathy (CIDP), with good results in treatment-refractory and treatment-naive patients, according to results from a phase 2 clinical trial.

‘Impressive’ Results

The results were impressive, especially given that riliprubart outperformed IVIG, according to Frank Tennigkeit, PhD, senior director of pediatric development rare diseases at UCB Biosciences, who attended the session at the 2024 annual meeting of the American Academy of Neurology, where the study was presented. “There are few trials on CIDP, and the standard data are IVIG data.

“This is really amazing, especially in refractory patients. I turned to my neighbor [during the presentation] and said, ‘I’ve never seen CIDP data that good in my life. It works in all kinds of different patient populations, and also on the refractory ones. That’s what you want. That’s where the need is. And you saw a consistent effect and a strong effect on top of standard of care,” said Dr. Tennigkeit.

“It’s impressive. The only problem with CIDP is that it’s very difficult to compare treatments, because everyone has a different outcome. This was an open-label study, so there’s always a confounding bias. The proof of the pudding is going to be in a phase 3 blinded, randomized trial, but what I really admire about them, and I thought was very gutsy, is that they’re going head-to-head versus IVIG. I haven’t seen anyone who’s done that yet [in CIDP],” said Shalom Patole, MD, an internist and telehealth consultant in India, who also attended the session.
 

An Open-Label Phase 2 Study

The study had a somewhat unique design, according to Richard Lewis, MD, who presented the results. It was an open-label design that examined three subpopulations: 25 who had objective response to treatments (standard of care [SOC]–treated, mean age, 58.2 years; 80% male), 18 refractory patients who had been off treatment for up to 12 weeks (SOC-refractory, mean age, 63.9 years; 61% male), and 12 patients who had not been treated at all for at least 6 months or were treatment-naive (SOC-naive, mean age, 59.1 years; 67% male).

At 24 weeks, “if you looked at the treated group, 88% of those patients improved to remain stable, and only 12% relapsed. Most significantly, these patients who had responded to their IVIG, who were supposedly doing pretty well, 44% of those actually got better, so they improved from what would have been a pretty good baseline. The refractory patients, despite flunking the other treatments, 50% actually passed or improved with the treatment, so a significant response rate in a group that was not responding so well,” said Dr. Lewis, who is a neurologist at Cedars Sinai Medical Center.

The researchers also found that treatment with riliprubart led to inhibition of complement activity and a trend in reduction in neurofilament light chain levels by week 24 in all three groups.

Treatment-emergent adverse events occurred in 60% of the SOC-treated group, 72% of the SOC-refractory group, and 75% of the SOC-naive group, though grade 3 or higher events were rare (4%, 17%, and 8%, respectively). There was one death in the SOC-treated group and one in the SOC-refractory group. Both patients were elderly and had comorbid conditions.
 

Challenging the Current Standard of Care

The data have led to two additional phase 3 trials, one in refractory patients (Mobilize), and another for patients treated with IVIG who have residual disability (Vitalize). Sanofi is also planning a phase 3, placebo-controlled trial with one arm that will compare the antibody to IVIG, “which is a pretty ambitious trial design,” admitted Dr. Lewis.

Such a strategy is risky, but it could represent a big payoff for Sanofi if the phase 3 studies replicate the phase 2 studies. “No one would be using IVIG anymore if you beat IVIG by 50%. That will be the standard. If you do the trial [versus IVIG], you have a higher risk, but if you win it, you will win big,” said Dr. Tennigkeit.

The study was funded by Sanofi. Dr. Lewis has financial relationships with CSL Behring, Grifols, Pfizer, Sanofi, Argenx, Pharnext, Roche, Johnson & Johnson, Takeda, Boehringer Ingelheim, Nuvig, Dianthus, Janssen, Medscape, Alexion, Alnylam, and Novartis. Dr. Tennigkeit is an employee of UCB Biosciences. Dr. Patole has no relevant financial disclosures.

DENVER — A first-in-class monoclonal antibody (riliprubart, Sanofi) that inhibits complement activation showed good activity versus IVIG in chronic inflammatory demyelinating polyneuropathy (CIDP), with good results in treatment-refractory and treatment-naive patients, according to results from a phase 2 clinical trial.

‘Impressive’ Results

The results were impressive, especially given that riliprubart outperformed IVIG, according to Frank Tennigkeit, PhD, senior director of pediatric development rare diseases at UCB Biosciences, who attended the session at the 2024 annual meeting of the American Academy of Neurology, where the study was presented. “There are few trials on CIDP, and the standard data are IVIG data.

“This is really amazing, especially in refractory patients. I turned to my neighbor [during the presentation] and said, ‘I’ve never seen CIDP data that good in my life. It works in all kinds of different patient populations, and also on the refractory ones. That’s what you want. That’s where the need is. And you saw a consistent effect and a strong effect on top of standard of care,” said Dr. Tennigkeit.

“It’s impressive. The only problem with CIDP is that it’s very difficult to compare treatments, because everyone has a different outcome. This was an open-label study, so there’s always a confounding bias. The proof of the pudding is going to be in a phase 3 blinded, randomized trial, but what I really admire about them, and I thought was very gutsy, is that they’re going head-to-head versus IVIG. I haven’t seen anyone who’s done that yet [in CIDP],” said Shalom Patole, MD, an internist and telehealth consultant in India, who also attended the session.
 

An Open-Label Phase 2 Study

The study had a somewhat unique design, according to Richard Lewis, MD, who presented the results. It was an open-label design that examined three subpopulations: 25 who had objective response to treatments (standard of care [SOC]–treated, mean age, 58.2 years; 80% male), 18 refractory patients who had been off treatment for up to 12 weeks (SOC-refractory, mean age, 63.9 years; 61% male), and 12 patients who had not been treated at all for at least 6 months or were treatment-naive (SOC-naive, mean age, 59.1 years; 67% male).

At 24 weeks, “if you looked at the treated group, 88% of those patients improved to remain stable, and only 12% relapsed. Most significantly, these patients who had responded to their IVIG, who were supposedly doing pretty well, 44% of those actually got better, so they improved from what would have been a pretty good baseline. The refractory patients, despite flunking the other treatments, 50% actually passed or improved with the treatment, so a significant response rate in a group that was not responding so well,” said Dr. Lewis, who is a neurologist at Cedars Sinai Medical Center.

The researchers also found that treatment with riliprubart led to inhibition of complement activity and a trend in reduction in neurofilament light chain levels by week 24 in all three groups.

Treatment-emergent adverse events occurred in 60% of the SOC-treated group, 72% of the SOC-refractory group, and 75% of the SOC-naive group, though grade 3 or higher events were rare (4%, 17%, and 8%, respectively). There was one death in the SOC-treated group and one in the SOC-refractory group. Both patients were elderly and had comorbid conditions.
 

Challenging the Current Standard of Care

The data have led to two additional phase 3 trials, one in refractory patients (Mobilize), and another for patients treated with IVIG who have residual disability (Vitalize). Sanofi is also planning a phase 3, placebo-controlled trial with one arm that will compare the antibody to IVIG, “which is a pretty ambitious trial design,” admitted Dr. Lewis.

Such a strategy is risky, but it could represent a big payoff for Sanofi if the phase 3 studies replicate the phase 2 studies. “No one would be using IVIG anymore if you beat IVIG by 50%. That will be the standard. If you do the trial [versus IVIG], you have a higher risk, but if you win it, you will win big,” said Dr. Tennigkeit.

The study was funded by Sanofi. Dr. Lewis has financial relationships with CSL Behring, Grifols, Pfizer, Sanofi, Argenx, Pharnext, Roche, Johnson & Johnson, Takeda, Boehringer Ingelheim, Nuvig, Dianthus, Janssen, Medscape, Alexion, Alnylam, and Novartis. Dr. Tennigkeit is an employee of UCB Biosciences. Dr. Patole has no relevant financial disclosures.

DENVER — A first-in-class monoclonal antibody (riliprubart, Sanofi) that inhibits complement activation showed good activity versus IVIG in chronic inflammatory demyelinating polyneuropathy (CIDP), with good results in treatment-refractory and treatment-naive patients, according to results from a phase 2 clinical trial.

‘Impressive’ Results

The results were impressive, especially given that riliprubart outperformed IVIG, according to Frank Tennigkeit, PhD, senior director of pediatric development rare diseases at UCB Biosciences, who attended the session at the 2024 annual meeting of the American Academy of Neurology, where the study was presented. “There are few trials on CIDP, and the standard data are IVIG data.

“This is really amazing, especially in refractory patients. I turned to my neighbor [during the presentation] and said, ‘I’ve never seen CIDP data that good in my life. It works in all kinds of different patient populations, and also on the refractory ones. That’s what you want. That’s where the need is. And you saw a consistent effect and a strong effect on top of standard of care,” said Dr. Tennigkeit.

“It’s impressive. The only problem with CIDP is that it’s very difficult to compare treatments, because everyone has a different outcome. This was an open-label study, so there’s always a confounding bias. The proof of the pudding is going to be in a phase 3 blinded, randomized trial, but what I really admire about them, and I thought was very gutsy, is that they’re going head-to-head versus IVIG. I haven’t seen anyone who’s done that yet [in CIDP],” said Shalom Patole, MD, an internist and telehealth consultant in India, who also attended the session.
 

An Open-Label Phase 2 Study

The study had a somewhat unique design, according to Richard Lewis, MD, who presented the results. It was an open-label design that examined three subpopulations: 25 who had objective response to treatments (standard of care [SOC]–treated, mean age, 58.2 years; 80% male), 18 refractory patients who had been off treatment for up to 12 weeks (SOC-refractory, mean age, 63.9 years; 61% male), and 12 patients who had not been treated at all for at least 6 months or were treatment-naive (SOC-naive, mean age, 59.1 years; 67% male).

At 24 weeks, “if you looked at the treated group, 88% of those patients improved to remain stable, and only 12% relapsed. Most significantly, these patients who had responded to their IVIG, who were supposedly doing pretty well, 44% of those actually got better, so they improved from what would have been a pretty good baseline. The refractory patients, despite flunking the other treatments, 50% actually passed or improved with the treatment, so a significant response rate in a group that was not responding so well,” said Dr. Lewis, who is a neurologist at Cedars Sinai Medical Center.

The researchers also found that treatment with riliprubart led to inhibition of complement activity and a trend in reduction in neurofilament light chain levels by week 24 in all three groups.

Treatment-emergent adverse events occurred in 60% of the SOC-treated group, 72% of the SOC-refractory group, and 75% of the SOC-naive group, though grade 3 or higher events were rare (4%, 17%, and 8%, respectively). There was one death in the SOC-treated group and one in the SOC-refractory group. Both patients were elderly and had comorbid conditions.
 

Challenging the Current Standard of Care

The data have led to two additional phase 3 trials, one in refractory patients (Mobilize), and another for patients treated with IVIG who have residual disability (Vitalize). Sanofi is also planning a phase 3, placebo-controlled trial with one arm that will compare the antibody to IVIG, “which is a pretty ambitious trial design,” admitted Dr. Lewis.

Such a strategy is risky, but it could represent a big payoff for Sanofi if the phase 3 studies replicate the phase 2 studies. “No one would be using IVIG anymore if you beat IVIG by 50%. That will be the standard. If you do the trial [versus IVIG], you have a higher risk, but if you win it, you will win big,” said Dr. Tennigkeit.

The study was funded by Sanofi. Dr. Lewis has financial relationships with CSL Behring, Grifols, Pfizer, Sanofi, Argenx, Pharnext, Roche, Johnson & Johnson, Takeda, Boehringer Ingelheim, Nuvig, Dianthus, Janssen, Medscape, Alexion, Alnylam, and Novartis. Dr. Tennigkeit is an employee of UCB Biosciences. Dr. Patole has no relevant financial disclosures.

DENVER — Patients with pediatric-onset multiple sclerosis (POMS) are often prescribed low-efficacy disease-modifying therapies (DMTs), but a new retrospective analysis suggests that, like adults, this patient population may benefit from early treatment with high-efficacy DMTs.

“I think it’s very important to highlight that we are seeing that traditionally, kids are just started on lower-efficacy treatments and they keep relapsing. If we can show that when they get transitioned to high-efficacy treatments, the relapses are lessening, I’m hoping that can then push for better clinical trials with pediatric patients included,” said Frederick Bassal, DO, who presented the study during a poster session at the 2024 annual meeting of the American Academy of Neurology. He is a pediatric neurologist at University of California, Davis.

The first line for POMS is generally low-efficacy DMTs like interferon-beta and glatiramer acetate, but these medications may not effectively control disease progression, according to the study authors, and this could lead to pediatric patients being changed to more potent therapies. That can include moderate-efficacy drugs like S1P inhibitors and fumarates, or high-efficacy DMTS such as B cell depletors and alpha 4 integrin receptor antibodies.
 

Treatment Strategies

“Right now what we’re seeing is the conservative approach — starting low and working up with the younger and adolescent patients. I’m speculating, and I want to look more into it. Is [it maybe] because of insurance approval?” said study coauthor Amara Miller, a medical student at the University of Arizona College of Medicine in Phoenix.

The findings aren’t surprising, according to Barbara Giesser, MD, who was asked to comment on the study. “It is in line with what we think we know about people with adult MS — that if you start early on with a more effective therapy, you tend to have better outcomes,” said Dr. Giesser, director of the MS program at the Pacific Neuroscience Institute.

Another reason to consider higher-efficacy DMTs is that children with MS can have cognitive problems and delays. “There’s a suggestion that if you treat with highly-effective DMT that you might be able to abrogate some of that,” said Dr. Giesser.

Among the approximately two dozen FDA-approved disease-modifying therapies for MS, only fingolimod (Gilenya, Novartis) is approved for children and adolescents. “All of the others are used off label, but I think perhaps, if you have more studies that [show] that children do better if you treat with more effective therapies early on, perhaps we might see more on-label indications for use in a pediatric population,” said Dr. Giesser.

The finding that obesity was associated with a higher likelihood of having multiple therapies is also interesting, she said. “We’re beginning to see that obesity in adults as well seems to portend less favorable neurologic outcomes.”
 

Study Methodology

The researchers analyzed data from 135 POMS patients between 2012 and 2023.

The mean age of participants was 15 years, 60% were female, and 120 of 135 were White, while 76 were of Hispanic ethnicity. Overweight and obesity were common, with 36 and 43 participants in each category. The initial therapy was a low-efficacy DMT in 23.0% of participants, moderate-efficacy in 37.0%, and high-efficacy in 24.4%, while 1.5% received some other kind of medication and 14.1% received no medication. The annualized relapse rate was 0.932, and the mean EDSS score was 0.88.

Patients who underwent three or medication changes had lower EDSS scores than those who underwent zero to 2 (P = .00607).

Over the course of the study, the percentage of patients who received high-efficacy DMTs rose from 25.9% to 48.9%, largely due to changes in medication. Of those initially prescribed low-efficacy DMTs, 77.4% were eventually switched to high-efficacy DMTs.

Every patient who underwent three or more medication changes was initially prescribed a low-efficacy DMT.

Patients started on low-efficacy drugs had a mean of 1.42 medication changes, compared with 0.94 in the moderate-efficacy group and 0.51 in the high-efficacy group. The reasons for changing from the first medication included relapse (36), side effects (11), patient choice or compliance (8), and pregnancy (2).

Patients 10 years or younger were more likely to be initially prescribed a low-efficacy therapy (odds ratio [OR], 5.72; P = .0366), while older patients were more likely to be prescribed moderate- or high-efficacy therapies (OR, 14.44; P = .0012).

There were more total medication changes in the low-efficacy group than the high initial DMT group (P = .000305).

Asked what advice they would give to physicians treating POMS patients, Ms. Miller suggested a top-down approach. “We want to look at if maybe we can start with higher efficacy DMT’s and maybe titering it down. That may be an option,” said Ms. Miller.

Dr. Bassal highlighted the importance of shared decision-making. “We want to go over the options, that we recommend higher-efficacy [DMTs] for these reasons. But every individual is different. And there may be fears that are very reasonable that families have. I think in those cases, it’s also reasonable to make a shared decision. And if that means going with something like an oral, moderate- to lower-efficacy [therapy], that’s okay, because compliance is key, and if you start something where the family is afraid of side effects, or there are side effects, then you kind of lost that opportunity,” he said.

Dr. Bassal, Dr. Giesser, and Ms. Miller have no relevant financial disclosures.

DENVER — Patients with pediatric-onset multiple sclerosis (POMS) are often prescribed low-efficacy disease-modifying therapies (DMTs), but a new retrospective analysis suggests that, like adults, this patient population may benefit from early treatment with high-efficacy DMTs.

“I think it’s very important to highlight that we are seeing that traditionally, kids are just started on lower-efficacy treatments and they keep relapsing. If we can show that when they get transitioned to high-efficacy treatments, the relapses are lessening, I’m hoping that can then push for better clinical trials with pediatric patients included,” said Frederick Bassal, DO, who presented the study during a poster session at the 2024 annual meeting of the American Academy of Neurology. He is a pediatric neurologist at University of California, Davis.

The first line for POMS is generally low-efficacy DMTs like interferon-beta and glatiramer acetate, but these medications may not effectively control disease progression, according to the study authors, and this could lead to pediatric patients being changed to more potent therapies. That can include moderate-efficacy drugs like S1P inhibitors and fumarates, or high-efficacy DMTS such as B cell depletors and alpha 4 integrin receptor antibodies.
 

Treatment Strategies

“Right now what we’re seeing is the conservative approach — starting low and working up with the younger and adolescent patients. I’m speculating, and I want to look more into it. Is [it maybe] because of insurance approval?” said study coauthor Amara Miller, a medical student at the University of Arizona College of Medicine in Phoenix.

The findings aren’t surprising, according to Barbara Giesser, MD, who was asked to comment on the study. “It is in line with what we think we know about people with adult MS — that if you start early on with a more effective therapy, you tend to have better outcomes,” said Dr. Giesser, director of the MS program at the Pacific Neuroscience Institute.

Another reason to consider higher-efficacy DMTs is that children with MS can have cognitive problems and delays. “There’s a suggestion that if you treat with highly-effective DMT that you might be able to abrogate some of that,” said Dr. Giesser.

Among the approximately two dozen FDA-approved disease-modifying therapies for MS, only fingolimod (Gilenya, Novartis) is approved for children and adolescents. “All of the others are used off label, but I think perhaps, if you have more studies that [show] that children do better if you treat with more effective therapies early on, perhaps we might see more on-label indications for use in a pediatric population,” said Dr. Giesser.

The finding that obesity was associated with a higher likelihood of having multiple therapies is also interesting, she said. “We’re beginning to see that obesity in adults as well seems to portend less favorable neurologic outcomes.”
 

Study Methodology

The researchers analyzed data from 135 POMS patients between 2012 and 2023.

The mean age of participants was 15 years, 60% were female, and 120 of 135 were White, while 76 were of Hispanic ethnicity. Overweight and obesity were common, with 36 and 43 participants in each category. The initial therapy was a low-efficacy DMT in 23.0% of participants, moderate-efficacy in 37.0%, and high-efficacy in 24.4%, while 1.5% received some other kind of medication and 14.1% received no medication. The annualized relapse rate was 0.932, and the mean EDSS score was 0.88.

Patients who underwent three or medication changes had lower EDSS scores than those who underwent zero to 2 (P = .00607).

Over the course of the study, the percentage of patients who received high-efficacy DMTs rose from 25.9% to 48.9%, largely due to changes in medication. Of those initially prescribed low-efficacy DMTs, 77.4% were eventually switched to high-efficacy DMTs.

Every patient who underwent three or more medication changes was initially prescribed a low-efficacy DMT.

Patients started on low-efficacy drugs had a mean of 1.42 medication changes, compared with 0.94 in the moderate-efficacy group and 0.51 in the high-efficacy group. The reasons for changing from the first medication included relapse (36), side effects (11), patient choice or compliance (8), and pregnancy (2).

Patients 10 years or younger were more likely to be initially prescribed a low-efficacy therapy (odds ratio [OR], 5.72; P = .0366), while older patients were more likely to be prescribed moderate- or high-efficacy therapies (OR, 14.44; P = .0012).

There were more total medication changes in the low-efficacy group than the high initial DMT group (P = .000305).

Asked what advice they would give to physicians treating POMS patients, Ms. Miller suggested a top-down approach. “We want to look at if maybe we can start with higher efficacy DMT’s and maybe titering it down. That may be an option,” said Ms. Miller.

Dr. Bassal highlighted the importance of shared decision-making. “We want to go over the options, that we recommend higher-efficacy [DMTs] for these reasons. But every individual is different. And there may be fears that are very reasonable that families have. I think in those cases, it’s also reasonable to make a shared decision. And if that means going with something like an oral, moderate- to lower-efficacy [therapy], that’s okay, because compliance is key, and if you start something where the family is afraid of side effects, or there are side effects, then you kind of lost that opportunity,” he said.

Dr. Bassal, Dr. Giesser, and Ms. Miller have no relevant financial disclosures.

DENVER — Patients with pediatric-onset multiple sclerosis (POMS) are often prescribed low-efficacy disease-modifying therapies (DMTs), but a new retrospective analysis suggests that, like adults, this patient population may benefit from early treatment with high-efficacy DMTs.

“I think it’s very important to highlight that we are seeing that traditionally, kids are just started on lower-efficacy treatments and they keep relapsing. If we can show that when they get transitioned to high-efficacy treatments, the relapses are lessening, I’m hoping that can then push for better clinical trials with pediatric patients included,” said Frederick Bassal, DO, who presented the study during a poster session at the 2024 annual meeting of the American Academy of Neurology. He is a pediatric neurologist at University of California, Davis.

The first line for POMS is generally low-efficacy DMTs like interferon-beta and glatiramer acetate, but these medications may not effectively control disease progression, according to the study authors, and this could lead to pediatric patients being changed to more potent therapies. That can include moderate-efficacy drugs like S1P inhibitors and fumarates, or high-efficacy DMTS such as B cell depletors and alpha 4 integrin receptor antibodies.
 

Treatment Strategies

“Right now what we’re seeing is the conservative approach — starting low and working up with the younger and adolescent patients. I’m speculating, and I want to look more into it. Is [it maybe] because of insurance approval?” said study coauthor Amara Miller, a medical student at the University of Arizona College of Medicine in Phoenix.

The findings aren’t surprising, according to Barbara Giesser, MD, who was asked to comment on the study. “It is in line with what we think we know about people with adult MS — that if you start early on with a more effective therapy, you tend to have better outcomes,” said Dr. Giesser, director of the MS program at the Pacific Neuroscience Institute.

Another reason to consider higher-efficacy DMTs is that children with MS can have cognitive problems and delays. “There’s a suggestion that if you treat with highly-effective DMT that you might be able to abrogate some of that,” said Dr. Giesser.

Among the approximately two dozen FDA-approved disease-modifying therapies for MS, only fingolimod (Gilenya, Novartis) is approved for children and adolescents. “All of the others are used off label, but I think perhaps, if you have more studies that [show] that children do better if you treat with more effective therapies early on, perhaps we might see more on-label indications for use in a pediatric population,” said Dr. Giesser.

The finding that obesity was associated with a higher likelihood of having multiple therapies is also interesting, she said. “We’re beginning to see that obesity in adults as well seems to portend less favorable neurologic outcomes.”
 

Study Methodology

The researchers analyzed data from 135 POMS patients between 2012 and 2023.

The mean age of participants was 15 years, 60% were female, and 120 of 135 were White, while 76 were of Hispanic ethnicity. Overweight and obesity were common, with 36 and 43 participants in each category. The initial therapy was a low-efficacy DMT in 23.0% of participants, moderate-efficacy in 37.0%, and high-efficacy in 24.4%, while 1.5% received some other kind of medication and 14.1% received no medication. The annualized relapse rate was 0.932, and the mean EDSS score was 0.88.

Patients who underwent three or medication changes had lower EDSS scores than those who underwent zero to 2 (P = .00607).

Over the course of the study, the percentage of patients who received high-efficacy DMTs rose from 25.9% to 48.9%, largely due to changes in medication. Of those initially prescribed low-efficacy DMTs, 77.4% were eventually switched to high-efficacy DMTs.

Every patient who underwent three or more medication changes was initially prescribed a low-efficacy DMT.

Patients started on low-efficacy drugs had a mean of 1.42 medication changes, compared with 0.94 in the moderate-efficacy group and 0.51 in the high-efficacy group. The reasons for changing from the first medication included relapse (36), side effects (11), patient choice or compliance (8), and pregnancy (2).

Patients 10 years or younger were more likely to be initially prescribed a low-efficacy therapy (odds ratio [OR], 5.72; P = .0366), while older patients were more likely to be prescribed moderate- or high-efficacy therapies (OR, 14.44; P = .0012).

There were more total medication changes in the low-efficacy group than the high initial DMT group (P = .000305).

Asked what advice they would give to physicians treating POMS patients, Ms. Miller suggested a top-down approach. “We want to look at if maybe we can start with higher efficacy DMT’s and maybe titering it down. That may be an option,” said Ms. Miller.

Dr. Bassal highlighted the importance of shared decision-making. “We want to go over the options, that we recommend higher-efficacy [DMTs] for these reasons. But every individual is different. And there may be fears that are very reasonable that families have. I think in those cases, it’s also reasonable to make a shared decision. And if that means going with something like an oral, moderate- to lower-efficacy [therapy], that’s okay, because compliance is key, and if you start something where the family is afraid of side effects, or there are side effects, then you kind of lost that opportunity,” he said.

Dr. Bassal, Dr. Giesser, and Ms. Miller have no relevant financial disclosures.

DENVER — Among residents of urban environments, the highest levels of exposure to environmental trichloroethylene (TCE) is associated with a 24% increase in risk of Parkinson’s disease, according to results from a new nationwide analysis of a Medicare population.

TCE has long been used as an industrial solvent, and it is a component of several household cleaning products. Case reports have suggested that workers exposed to it have increased risk of Parkinson’s disease, with risk increases as high as 500%.

Exposure can come through air or water, but 97% of environmental TCE is found in the air, according to Brittany Krzyzanowski, PhD, who presented the study at the 2024 annual meeting of the American Academy of Neurology.

Previous studies of TCE had looked primarily at occupational exposure, such as workers at TCE-emitting facilities, or soldiers stationed at Camp Lejeune in North Carolina, where levels of TCE were more than 70-fold higher than EPA-permissible levels. A recent study found a 70% increase in risk of Parkinson’s disease associated with individuals who were stationed there.
 

From Population Data to Individual Risk

In an interview, Dr. Krzyzanowski pointed out that the Camp Lejeune studies didn’t assign TCE exposure to individuals — instead, researchers noted whether an individual was stationed at that base or another. “Our study adds to the previous work by investigating environmental exposure using TCE estimates that we are able to assign to individuals. [It shows that] you don’t have to work in a facility with TCE, you don’t have to be stationed on a military base with tainted water, you just have to live in a census tract with higher levels of TCE to have increased risk,” said Dr. Krzyzanowski, a research assistant professor at Barrow Neurological Institute in Phoenix.

In the new study, Dr. Krzyzanowski and her colleagues analyzed data from 1,559,135 Medicare beneficiaries with no other health coverage, who had a valid US ZIP code. There were 252,700 incident cases of Parkinson’s disease who were initially diagnosed between 2016 and 2018. These individuals were matched 1:5 with 1,306,435 healthy controls.

Airborne TCE exposure data was drawn the Environmental Protection Agency’s National Air Toxics Assessment data from 2005, about 12 years prior to the start of the study and in line with the expected latency between exposure and development of Parkinson’s disease.

“We found a nationwide association between airborne TCE exposure and Parkinson’s disease risks, but this was only true for the metropolitan areas. Within these metro areas, there was a dose-response effect, where increasing levels of TCE were associated with increasing risk of Parkinson’s disease. In particular, those living in the metros with the highest levels of TCE had a 24% greater risk of Parkinson’s compared with those in metros with the lowest levels of TCE,” Dr. Krzyzanowski said during her presentation. The P-value for the trend was less than .0001.

The census tracts in metropolitan areas are smaller than those in rural areas because of differences in population density, and this leads to greater precision of TCE exposure estimates in urban environments, according to Dr. Krzyzanowski, and this could explain the lack of a statistically significant association seen among rural populations.

‘More Substantial’ Data Adds to Previous Evidence

The new study is an important addition to the literature examining TCE exposure and Parkinson’s disease, according to session moderator Jeff Bronstein, MD, PhD, who was asked for comment. “It’s more substantial data making that association between TCE and Parkinson’s. It’s been growing over the past decade, and this is a more objective, big data association, so it adds more strength to the body of knowledge that we already have. It’s unbiased, which is nice,” said Dr. Bronstein, professor of neurology and director of movement disorders at UCLA.

It remains uncertain whether TCE is a direct cause of Parkinson’s disease, but “a lot of us believe it’s causal. There’s a lot of evidence now. There are some very good studies with inhalation models that show it affects autophagy, or the way we break down proteins, and that it also involves LRRK2 [leucine-rich repeat kinase 2], which is one of the proteins involved in some of the genetic forms [of Parkinson’s disease], and it might affect mitochondria. They’re all linked in network and right now the animal studies point to that network,” said Dr. Bronstein.

Dr. Krzyzanowski has no relevant financial disclosures. Dr. Bronstein consults for a legal firm involved in the Camp Lejeune litigation.

DENVER — Among residents of urban environments, the highest levels of exposure to environmental trichloroethylene (TCE) is associated with a 24% increase in risk of Parkinson’s disease, according to results from a new nationwide analysis of a Medicare population.

TCE has long been used as an industrial solvent, and it is a component of several household cleaning products. Case reports have suggested that workers exposed to it have increased risk of Parkinson’s disease, with risk increases as high as 500%.

Exposure can come through air or water, but 97% of environmental TCE is found in the air, according to Brittany Krzyzanowski, PhD, who presented the study at the 2024 annual meeting of the American Academy of Neurology.

Previous studies of TCE had looked primarily at occupational exposure, such as workers at TCE-emitting facilities, or soldiers stationed at Camp Lejeune in North Carolina, where levels of TCE were more than 70-fold higher than EPA-permissible levels. A recent study found a 70% increase in risk of Parkinson’s disease associated with individuals who were stationed there.
 

From Population Data to Individual Risk

In an interview, Dr. Krzyzanowski pointed out that the Camp Lejeune studies didn’t assign TCE exposure to individuals — instead, researchers noted whether an individual was stationed at that base or another. “Our study adds to the previous work by investigating environmental exposure using TCE estimates that we are able to assign to individuals. [It shows that] you don’t have to work in a facility with TCE, you don’t have to be stationed on a military base with tainted water, you just have to live in a census tract with higher levels of TCE to have increased risk,” said Dr. Krzyzanowski, a research assistant professor at Barrow Neurological Institute in Phoenix.

In the new study, Dr. Krzyzanowski and her colleagues analyzed data from 1,559,135 Medicare beneficiaries with no other health coverage, who had a valid US ZIP code. There were 252,700 incident cases of Parkinson’s disease who were initially diagnosed between 2016 and 2018. These individuals were matched 1:5 with 1,306,435 healthy controls.

Airborne TCE exposure data was drawn the Environmental Protection Agency’s National Air Toxics Assessment data from 2005, about 12 years prior to the start of the study and in line with the expected latency between exposure and development of Parkinson’s disease.

“We found a nationwide association between airborne TCE exposure and Parkinson’s disease risks, but this was only true for the metropolitan areas. Within these metro areas, there was a dose-response effect, where increasing levels of TCE were associated with increasing risk of Parkinson’s disease. In particular, those living in the metros with the highest levels of TCE had a 24% greater risk of Parkinson’s compared with those in metros with the lowest levels of TCE,” Dr. Krzyzanowski said during her presentation. The P-value for the trend was less than .0001.

The census tracts in metropolitan areas are smaller than those in rural areas because of differences in population density, and this leads to greater precision of TCE exposure estimates in urban environments, according to Dr. Krzyzanowski, and this could explain the lack of a statistically significant association seen among rural populations.

‘More Substantial’ Data Adds to Previous Evidence

The new study is an important addition to the literature examining TCE exposure and Parkinson’s disease, according to session moderator Jeff Bronstein, MD, PhD, who was asked for comment. “It’s more substantial data making that association between TCE and Parkinson’s. It’s been growing over the past decade, and this is a more objective, big data association, so it adds more strength to the body of knowledge that we already have. It’s unbiased, which is nice,” said Dr. Bronstein, professor of neurology and director of movement disorders at UCLA.

It remains uncertain whether TCE is a direct cause of Parkinson’s disease, but “a lot of us believe it’s causal. There’s a lot of evidence now. There are some very good studies with inhalation models that show it affects autophagy, or the way we break down proteins, and that it also involves LRRK2 [leucine-rich repeat kinase 2], which is one of the proteins involved in some of the genetic forms [of Parkinson’s disease], and it might affect mitochondria. They’re all linked in network and right now the animal studies point to that network,” said Dr. Bronstein.

Dr. Krzyzanowski has no relevant financial disclosures. Dr. Bronstein consults for a legal firm involved in the Camp Lejeune litigation.

DENVER — Among residents of urban environments, the highest levels of exposure to environmental trichloroethylene (TCE) is associated with a 24% increase in risk of Parkinson’s disease, according to results from a new nationwide analysis of a Medicare population.

TCE has long been used as an industrial solvent, and it is a component of several household cleaning products. Case reports have suggested that workers exposed to it have increased risk of Parkinson’s disease, with risk increases as high as 500%.

Exposure can come through air or water, but 97% of environmental TCE is found in the air, according to Brittany Krzyzanowski, PhD, who presented the study at the 2024 annual meeting of the American Academy of Neurology.

Previous studies of TCE had looked primarily at occupational exposure, such as workers at TCE-emitting facilities, or soldiers stationed at Camp Lejeune in North Carolina, where levels of TCE were more than 70-fold higher than EPA-permissible levels. A recent study found a 70% increase in risk of Parkinson’s disease associated with individuals who were stationed there.
 

From Population Data to Individual Risk

In an interview, Dr. Krzyzanowski pointed out that the Camp Lejeune studies didn’t assign TCE exposure to individuals — instead, researchers noted whether an individual was stationed at that base or another. “Our study adds to the previous work by investigating environmental exposure using TCE estimates that we are able to assign to individuals. [It shows that] you don’t have to work in a facility with TCE, you don’t have to be stationed on a military base with tainted water, you just have to live in a census tract with higher levels of TCE to have increased risk,” said Dr. Krzyzanowski, a research assistant professor at Barrow Neurological Institute in Phoenix.

In the new study, Dr. Krzyzanowski and her colleagues analyzed data from 1,559,135 Medicare beneficiaries with no other health coverage, who had a valid US ZIP code. There were 252,700 incident cases of Parkinson’s disease who were initially diagnosed between 2016 and 2018. These individuals were matched 1:5 with 1,306,435 healthy controls.

Airborne TCE exposure data was drawn the Environmental Protection Agency’s National Air Toxics Assessment data from 2005, about 12 years prior to the start of the study and in line with the expected latency between exposure and development of Parkinson’s disease.

“We found a nationwide association between airborne TCE exposure and Parkinson’s disease risks, but this was only true for the metropolitan areas. Within these metro areas, there was a dose-response effect, where increasing levels of TCE were associated with increasing risk of Parkinson’s disease. In particular, those living in the metros with the highest levels of TCE had a 24% greater risk of Parkinson’s compared with those in metros with the lowest levels of TCE,” Dr. Krzyzanowski said during her presentation. The P-value for the trend was less than .0001.

The census tracts in metropolitan areas are smaller than those in rural areas because of differences in population density, and this leads to greater precision of TCE exposure estimates in urban environments, according to Dr. Krzyzanowski, and this could explain the lack of a statistically significant association seen among rural populations.

‘More Substantial’ Data Adds to Previous Evidence

The new study is an important addition to the literature examining TCE exposure and Parkinson’s disease, according to session moderator Jeff Bronstein, MD, PhD, who was asked for comment. “It’s more substantial data making that association between TCE and Parkinson’s. It’s been growing over the past decade, and this is a more objective, big data association, so it adds more strength to the body of knowledge that we already have. It’s unbiased, which is nice,” said Dr. Bronstein, professor of neurology and director of movement disorders at UCLA.

It remains uncertain whether TCE is a direct cause of Parkinson’s disease, but “a lot of us believe it’s causal. There’s a lot of evidence now. There are some very good studies with inhalation models that show it affects autophagy, or the way we break down proteins, and that it also involves LRRK2 [leucine-rich repeat kinase 2], which is one of the proteins involved in some of the genetic forms [of Parkinson’s disease], and it might affect mitochondria. They’re all linked in network and right now the animal studies point to that network,” said Dr. Bronstein.

Dr. Krzyzanowski has no relevant financial disclosures. Dr. Bronstein consults for a legal firm involved in the Camp Lejeune litigation.

LAS VEGAS — The introduction of biosimilars has driven down the costs of originator biologics, but it isn’t clear whether those cost savings are being passed on to patients, or increasing access to the drugs, according to two new retrospective analyses that separately looked at private insurance and Medicare patients.

“It is interesting to see that biosimilar use is increasing in patients with Medicare insurance in the U.S. since introduction into the market. This shows that clinicians are getting more comfortable with their use in clinical practice,” said Sara Horst, MD, associate professor of gastroenterology, hepatology, and nutrition at Vanderbilt University Medical Center in Nashville, Tennessee. That “is a continued important question in use, especially in the older population,” Dr. Horst said at the poster session where the two studies were presented, at the annual Crohn’s & Colitis Congress^®, a partnership of the Crohn’s & Colitis Foundation and the American Gastroenterological Association.

Vanderbilt University

One study examined Medicare part D participants. The researchers included infliximab prescriptions between 2013 and 2021, with a break in 2017 when biosimilars were first introduced. Between 2013 and 2017, there was a 93.7% annual increase in infliximab cost, and a 29.0% increase in annual claims. Between 2017 and 2021, those numbers declined to 23.9% and 12.1%, respectively. The researchers also examined trends by individual states and found a wide range of results. “Nationwide, it seems to be doing exactly what you’d expect, and I’d say it’s encouraging. This is exactly what you want with the introduction of biosimilars, and this is what you want for the patient population. But there are some states that have not really kept up with the rest of the country, and may need to look further into what types of trends are there,” said Modan Goldman, who presented the study. He is a medical student at Carle Illinois College of Medicine in Urbana, Illinois.

The other study looked at use of infliximab versus a biosimilar between 2015 and 2021 in 42,009 patients 64 or younger, drawing data from Merative Marketscan Commercial Claims and Encounters Database. They excluded government-funded insurance. Between January 2015 and December 2017, the cost of a vial of infliximab increased by $6.31 per month, reaching a maxim cost of $1,491 per vial. In January 2018, the cost decreased by $62 per vial, with a downward trend after that of $12.93 per vial per month.

Nationwide Children’s Hospital

“[Getting] access to these drugs, especially for pediatric IBD, has been an uphill battle with insurance companies and getting the medication and the doses we want,” said Samantha Paglinco, DO, who presented the Marketscan study.

The findings demonstrated clear cost reductions. “At the beginning of our period, infliximab originator Remicade was a little over $1,200 per vial, and at the end of our period of 2021, we expected it to be around $1,800 per vial. However, with the introduction of multiple infliximab biosimilars, we did see it come down to $800 per vial, which generated a savings of $1,000, which is pretty significant. We’re hoping that by generating overall cost savings to insurance companies, this will allow for greater access, because we know infliximab is such a good medication for pediatric IBD and for many other autoimmune conditions,” said Dr. Paglinco, a pediatric GI fellow at Nationwide Children’s Hospital in Columbus, Ohio.

The decrease in the cost of medication per vial in both the originator and biosimilar is an important finding in light of cost containment strategies, although Dr. Horst pointed out that the study didn’t determine if there were any savings to patients. “That is what clinicians and patients care about the most. I worry that while these savings were seen at insurance and health care organizational levels, patients may not have experienced any cost savings, and this is something we need to consider in the future,” she said.

The FDA created the biosimilar regulatory pathway in 2010 in an effort to reduce costs. “And they have. The cost savings however, has not directly translated to the individual patient in their copays or necessarily in changes to access when prescribing. Nor has it allowed dose escalation more easily, which is frequently needed,” said David T. Rubin, MD, AGAF, who was asked for comment.

Although the changes in prescribing patterns may reflect cost savings to patients, there are some limits to this interpretation, according to Dr. Rubin, of the University of Chicago. Payers are often the ones who determine a switch to biosimilar. The study also does not account for disease activity or phenotype, which can be an important confounder. Newer biologics that have come on to the market in recent years may also have affected the prescribing patterns for infliximab.

Nevertheless, an association between introduction of biosimilars and declining cost in the originator product (Remicade) is welcome, according to Dr. Rubin. “This is nice to see and we have seen it in our practices,” he said.

Unfortunately, “it has also not been seen to translate into reduced costs for patients nor has it been associated with increased access or changes in payer policies to allow these drugs to be used, or dose escalations to occur,” Dr. Rubin added.

Dr. Paglinco and Mr. Goldman have no relevant financial disclosures. Dr. Horst has consulted for Janssen, Takeda, Bristol-Myers Squibb, and Abbvie. Dr. Rubin has received grant support from Takeda and has consulted for Abbvie, Bristol-Myers Squibb, Janssen Pharmaceuticals, Lilly, Pfizer, and Takeda.

LAS VEGAS — The introduction of biosimilars has driven down the costs of originator biologics, but it isn’t clear whether those cost savings are being passed on to patients, or increasing access to the drugs, according to two new retrospective analyses that separately looked at private insurance and Medicare patients.

“It is interesting to see that biosimilar use is increasing in patients with Medicare insurance in the U.S. since introduction into the market. This shows that clinicians are getting more comfortable with their use in clinical practice,” said Sara Horst, MD, associate professor of gastroenterology, hepatology, and nutrition at Vanderbilt University Medical Center in Nashville, Tennessee. That “is a continued important question in use, especially in the older population,” Dr. Horst said at the poster session where the two studies were presented, at the annual Crohn’s & Colitis Congress^®, a partnership of the Crohn’s & Colitis Foundation and the American Gastroenterological Association.

Vanderbilt University

One study examined Medicare part D participants. The researchers included infliximab prescriptions between 2013 and 2021, with a break in 2017 when biosimilars were first introduced. Between 2013 and 2017, there was a 93.7% annual increase in infliximab cost, and a 29.0% increase in annual claims. Between 2017 and 2021, those numbers declined to 23.9% and 12.1%, respectively. The researchers also examined trends by individual states and found a wide range of results. “Nationwide, it seems to be doing exactly what you’d expect, and I’d say it’s encouraging. This is exactly what you want with the introduction of biosimilars, and this is what you want for the patient population. But there are some states that have not really kept up with the rest of the country, and may need to look further into what types of trends are there,” said Modan Goldman, who presented the study. He is a medical student at Carle Illinois College of Medicine in Urbana, Illinois.

The other study looked at use of infliximab versus a biosimilar between 2015 and 2021 in 42,009 patients 64 or younger, drawing data from Merative Marketscan Commercial Claims and Encounters Database. They excluded government-funded insurance. Between January 2015 and December 2017, the cost of a vial of infliximab increased by $6.31 per month, reaching a maxim cost of $1,491 per vial. In January 2018, the cost decreased by $62 per vial, with a downward trend after that of $12.93 per vial per month.

Nationwide Children’s Hospital

“[Getting] access to these drugs, especially for pediatric IBD, has been an uphill battle with insurance companies and getting the medication and the doses we want,” said Samantha Paglinco, DO, who presented the Marketscan study.

The findings demonstrated clear cost reductions. “At the beginning of our period, infliximab originator Remicade was a little over $1,200 per vial, and at the end of our period of 2021, we expected it to be around $1,800 per vial. However, with the introduction of multiple infliximab biosimilars, we did see it come down to $800 per vial, which generated a savings of $1,000, which is pretty significant. We’re hoping that by generating overall cost savings to insurance companies, this will allow for greater access, because we know infliximab is such a good medication for pediatric IBD and for many other autoimmune conditions,” said Dr. Paglinco, a pediatric GI fellow at Nationwide Children’s Hospital in Columbus, Ohio.

The decrease in the cost of medication per vial in both the originator and biosimilar is an important finding in light of cost containment strategies, although Dr. Horst pointed out that the study didn’t determine if there were any savings to patients. “That is what clinicians and patients care about the most. I worry that while these savings were seen at insurance and health care organizational levels, patients may not have experienced any cost savings, and this is something we need to consider in the future,” she said.

The FDA created the biosimilar regulatory pathway in 2010 in an effort to reduce costs. “And they have. The cost savings however, has not directly translated to the individual patient in their copays or necessarily in changes to access when prescribing. Nor has it allowed dose escalation more easily, which is frequently needed,” said David T. Rubin, MD, AGAF, who was asked for comment.

Although the changes in prescribing patterns may reflect cost savings to patients, there are some limits to this interpretation, according to Dr. Rubin, of the University of Chicago. Payers are often the ones who determine a switch to biosimilar. The study also does not account for disease activity or phenotype, which can be an important confounder. Newer biologics that have come on to the market in recent years may also have affected the prescribing patterns for infliximab.

Nevertheless, an association between introduction of biosimilars and declining cost in the originator product (Remicade) is welcome, according to Dr. Rubin. “This is nice to see and we have seen it in our practices,” he said.

Unfortunately, “it has also not been seen to translate into reduced costs for patients nor has it been associated with increased access or changes in payer policies to allow these drugs to be used, or dose escalations to occur,” Dr. Rubin added.

Dr. Paglinco and Mr. Goldman have no relevant financial disclosures. Dr. Horst has consulted for Janssen, Takeda, Bristol-Myers Squibb, and Abbvie. Dr. Rubin has received grant support from Takeda and has consulted for Abbvie, Bristol-Myers Squibb, Janssen Pharmaceuticals, Lilly, Pfizer, and Takeda.

LAS VEGAS — The introduction of biosimilars has driven down the costs of originator biologics, but it isn’t clear whether those cost savings are being passed on to patients, or increasing access to the drugs, according to two new retrospective analyses that separately looked at private insurance and Medicare patients.

“It is interesting to see that biosimilar use is increasing in patients with Medicare insurance in the U.S. since introduction into the market. This shows that clinicians are getting more comfortable with their use in clinical practice,” said Sara Horst, MD, associate professor of gastroenterology, hepatology, and nutrition at Vanderbilt University Medical Center in Nashville, Tennessee. That “is a continued important question in use, especially in the older population,” Dr. Horst said at the poster session where the two studies were presented, at the annual Crohn’s & Colitis Congress^®, a partnership of the Crohn’s & Colitis Foundation and the American Gastroenterological Association.

Vanderbilt University

One study examined Medicare part D participants. The researchers included infliximab prescriptions between 2013 and 2021, with a break in 2017 when biosimilars were first introduced. Between 2013 and 2017, there was a 93.7% annual increase in infliximab cost, and a 29.0% increase in annual claims. Between 2017 and 2021, those numbers declined to 23.9% and 12.1%, respectively. The researchers also examined trends by individual states and found a wide range of results. “Nationwide, it seems to be doing exactly what you’d expect, and I’d say it’s encouraging. This is exactly what you want with the introduction of biosimilars, and this is what you want for the patient population. But there are some states that have not really kept up with the rest of the country, and may need to look further into what types of trends are there,” said Modan Goldman, who presented the study. He is a medical student at Carle Illinois College of Medicine in Urbana, Illinois.

The other study looked at use of infliximab versus a biosimilar between 2015 and 2021 in 42,009 patients 64 or younger, drawing data from Merative Marketscan Commercial Claims and Encounters Database. They excluded government-funded insurance. Between January 2015 and December 2017, the cost of a vial of infliximab increased by $6.31 per month, reaching a maxim cost of $1,491 per vial. In January 2018, the cost decreased by $62 per vial, with a downward trend after that of $12.93 per vial per month.

Nationwide Children’s Hospital

“[Getting] access to these drugs, especially for pediatric IBD, has been an uphill battle with insurance companies and getting the medication and the doses we want,” said Samantha Paglinco, DO, who presented the Marketscan study.

The findings demonstrated clear cost reductions. “At the beginning of our period, infliximab originator Remicade was a little over $1,200 per vial, and at the end of our period of 2021, we expected it to be around $1,800 per vial. However, with the introduction of multiple infliximab biosimilars, we did see it come down to $800 per vial, which generated a savings of $1,000, which is pretty significant. We’re hoping that by generating overall cost savings to insurance companies, this will allow for greater access, because we know infliximab is such a good medication for pediatric IBD and for many other autoimmune conditions,” said Dr. Paglinco, a pediatric GI fellow at Nationwide Children’s Hospital in Columbus, Ohio.

The decrease in the cost of medication per vial in both the originator and biosimilar is an important finding in light of cost containment strategies, although Dr. Horst pointed out that the study didn’t determine if there were any savings to patients. “That is what clinicians and patients care about the most. I worry that while these savings were seen at insurance and health care organizational levels, patients may not have experienced any cost savings, and this is something we need to consider in the future,” she said.

The FDA created the biosimilar regulatory pathway in 2010 in an effort to reduce costs. “And they have. The cost savings however, has not directly translated to the individual patient in their copays or necessarily in changes to access when prescribing. Nor has it allowed dose escalation more easily, which is frequently needed,” said David T. Rubin, MD, AGAF, who was asked for comment.

Although the changes in prescribing patterns may reflect cost savings to patients, there are some limits to this interpretation, according to Dr. Rubin, of the University of Chicago. Payers are often the ones who determine a switch to biosimilar. The study also does not account for disease activity or phenotype, which can be an important confounder. Newer biologics that have come on to the market in recent years may also have affected the prescribing patterns for infliximab.

Nevertheless, an association between introduction of biosimilars and declining cost in the originator product (Remicade) is welcome, according to Dr. Rubin. “This is nice to see and we have seen it in our practices,” he said.

Unfortunately, “it has also not been seen to translate into reduced costs for patients nor has it been associated with increased access or changes in payer policies to allow these drugs to be used, or dose escalations to occur,” Dr. Rubin added.

Dr. Paglinco and Mr. Goldman have no relevant financial disclosures. Dr. Horst has consulted for Janssen, Takeda, Bristol-Myers Squibb, and Abbvie. Dr. Rubin has received grant support from Takeda and has consulted for Abbvie, Bristol-Myers Squibb, Janssen Pharmaceuticals, Lilly, Pfizer, and Takeda.

LAS VEGAS — In the treatment of inflammatory bowel disease, combinations of biologics or a biologic and tofacitinib appear to be generally safe and effective, according to a new systematic review and meta-analysis. The study updates a meta-analysis published in 2022, which included 13 studies. The new work included 23 studies that looked at 8 different combinations.

There is a potential concern that the high adverse event rates seen in biologics could be compounded when they are used in combination, according to Ali Osman, MD, who presented the results at a poster session at the annual Crohn’s & Colitis Congress^®, a partnership of the Crohn’s & Colitis Foundation and the American Gastroenterological Association. “Theoretically, you should have more side effects or more serious side effects, but interestingly we didn’t find major side effects. I think the key message is that the combinations of biologic agents are promising in terms of efficacy. In terms of adverse events, it doesn’t lead to major adverse events,” said Dr. Osman, an instructor at Washington University School of Medicine in St. Louis.

Washington University School of Medicine

Although the study did not directly compare the combinations, it did find potential differences in efficacy. “Our most effective [combination] in terms of response and remission was a combination of ustekinumab and an anti-TNF agent with a combined rate of 81.6%. Our lowest adverse events rate were [with the combination of] tofacitinib and vedolizumab,” said Dr. Osman.

The research is a useful update, according to David T. Rubin, MD, AGAF, who was asked for comment. “This has been explored before, but this is a nice effort to describe and try to compare studies of combination biological therapies or biologicals combined with [the JAK inhibitor]. This is to further explore the efforts being made to break the therapeutic ceiling by combining mechanisms, treat IBD and extra-intestinal manifestations with multiple agents simultaneously, and to explore novel treatment strategies,” said Dr. Rubin, professor of medicine and director of the Inflammatory Bowel Disease Center at University of Chicago Medicine.

He noted that the meta-analysis is limited by heterogeneity among the studies, many of which were case series that had been re-analyzed. The update included some prospective proof-of-concept studies of interest that were not in the earlier meta-analysis, including VEGA (anti-IL13 guselkumab plus anti-TNF golimumab versus either drug alone), and EXPLORER (vedolizumab, adalimumab, methotrexate), as well as a study of infliximab combined with natalizumab.

“We await the ongoing prospective trials of dual targeted therapies and novel designs for a future that will undoubtedly include thoughtful and rational combinations,” said Dr. Rubin.

The review included 23 studies that had a minimum of two patients who were treated with a combination of two biologics or a biologic and tofacitinib. The biologics included the anti-TNF antibodies adalimumab, certolizumab pegol, golimumab, and infliximab; as well as guselkumab, natalizumab, ustekinumab, and vedolizumab. Overall, the studies included 531 patients who underwent 543 therapeutic trials, using 8 different combinations.

The highest pooled clinical response observed was 81.6% with ustekinumab combined with an anti-TNF agent (P = .04, 9 studies, 44 therapeutic trials), which also had the highest remission rate of 64.2% (P = .03).

For the treatment of Crohn’s disease, the highest pooled clinical response and remission rates were also seen with ustekinumab combined with an anti-TNF agent (8 studies, 29 therapeutic trials), at 91.6% (P = .28). In ulcerative colitis, vedolizumab plus ustekinumab had the highest pooled clinical response rate at 100.0% (P = 1.00; 4 studies, 4 treatment trials) and ustekinumab plus an anti-TNF agent F at 100.0% (P = 1.00; 4 studies, 5 treatment trials).

Tofacitinib combined with vedolizumab had the lower adverse event rate (12.5%; P = .10; 8 studies, 76 treatment trials) followed by ustekinumab and an anti-TNF agent (12.7%; P = .08; 9 studies, 43 treatment trials) and tofacitinib plus anti-TNF (13.0%; 6 studies, 27 treatment trials).

Other combinations included guselkumab plus ant-TNF (1 study; clinical response, 69.0%), natalizumab plus an anti-TNF agent (1 study, clinical response, 36.5%), tofacitinib plus an anti-TNF agent (5 studies, clinical response, 71.6%), tofacitinib plus ustekinumab (5 studies, clinical response, 70.8%), tofacitinib plus vedolizumab (8 studies, clinical response, 52.7%), vedolizumab plus an anti-TNF agent (13 studies, clinical response, 62.8%), and vedolizumab plus ustekinumab (12 studies, clinical response, 79.3%).

Dr. Osman has no relevant financial conflicts of interest. Dr. Rubin has received grant support from Takeda, and has served as a consultant for Abbvie, Bristol-Myers Squibb, Janssen Pharmaceuticals, Lilly, Pfizer, and Takeda.

LAS VEGAS — In the treatment of inflammatory bowel disease, combinations of biologics or a biologic and tofacitinib appear to be generally safe and effective, according to a new systematic review and meta-analysis. The study updates a meta-analysis published in 2022, which included 13 studies. The new work included 23 studies that looked at 8 different combinations.

There is a potential concern that the high adverse event rates seen in biologics could be compounded when they are used in combination, according to Ali Osman, MD, who presented the results at a poster session at the annual Crohn’s & Colitis Congress^®, a partnership of the Crohn’s & Colitis Foundation and the American Gastroenterological Association. “Theoretically, you should have more side effects or more serious side effects, but interestingly we didn’t find major side effects. I think the key message is that the combinations of biologic agents are promising in terms of efficacy. In terms of adverse events, it doesn’t lead to major adverse events,” said Dr. Osman, an instructor at Washington University School of Medicine in St. Louis.

Washington University School of Medicine

Although the study did not directly compare the combinations, it did find potential differences in efficacy. “Our most effective [combination] in terms of response and remission was a combination of ustekinumab and an anti-TNF agent with a combined rate of 81.6%. Our lowest adverse events rate were [with the combination of] tofacitinib and vedolizumab,” said Dr. Osman.

The research is a useful update, according to David T. Rubin, MD, AGAF, who was asked for comment. “This has been explored before, but this is a nice effort to describe and try to compare studies of combination biological therapies or biologicals combined with [the JAK inhibitor]. This is to further explore the efforts being made to break the therapeutic ceiling by combining mechanisms, treat IBD and extra-intestinal manifestations with multiple agents simultaneously, and to explore novel treatment strategies,” said Dr. Rubin, professor of medicine and director of the Inflammatory Bowel Disease Center at University of Chicago Medicine.

He noted that the meta-analysis is limited by heterogeneity among the studies, many of which were case series that had been re-analyzed. The update included some prospective proof-of-concept studies of interest that were not in the earlier meta-analysis, including VEGA (anti-IL13 guselkumab plus anti-TNF golimumab versus either drug alone), and EXPLORER (vedolizumab, adalimumab, methotrexate), as well as a study of infliximab combined with natalizumab.

“We await the ongoing prospective trials of dual targeted therapies and novel designs for a future that will undoubtedly include thoughtful and rational combinations,” said Dr. Rubin.

The review included 23 studies that had a minimum of two patients who were treated with a combination of two biologics or a biologic and tofacitinib. The biologics included the anti-TNF antibodies adalimumab, certolizumab pegol, golimumab, and infliximab; as well as guselkumab, natalizumab, ustekinumab, and vedolizumab. Overall, the studies included 531 patients who underwent 543 therapeutic trials, using 8 different combinations.

The highest pooled clinical response observed was 81.6% with ustekinumab combined with an anti-TNF agent (P = .04, 9 studies, 44 therapeutic trials), which also had the highest remission rate of 64.2% (P = .03).

For the treatment of Crohn’s disease, the highest pooled clinical response and remission rates were also seen with ustekinumab combined with an anti-TNF agent (8 studies, 29 therapeutic trials), at 91.6% (P = .28). In ulcerative colitis, vedolizumab plus ustekinumab had the highest pooled clinical response rate at 100.0% (P = 1.00; 4 studies, 4 treatment trials) and ustekinumab plus an anti-TNF agent F at 100.0% (P = 1.00; 4 studies, 5 treatment trials).

Tofacitinib combined with vedolizumab had the lower adverse event rate (12.5%; P = .10; 8 studies, 76 treatment trials) followed by ustekinumab and an anti-TNF agent (12.7%; P = .08; 9 studies, 43 treatment trials) and tofacitinib plus anti-TNF (13.0%; 6 studies, 27 treatment trials).

Other combinations included guselkumab plus ant-TNF (1 study; clinical response, 69.0%), natalizumab plus an anti-TNF agent (1 study, clinical response, 36.5%), tofacitinib plus an anti-TNF agent (5 studies, clinical response, 71.6%), tofacitinib plus ustekinumab (5 studies, clinical response, 70.8%), tofacitinib plus vedolizumab (8 studies, clinical response, 52.7%), vedolizumab plus an anti-TNF agent (13 studies, clinical response, 62.8%), and vedolizumab plus ustekinumab (12 studies, clinical response, 79.3%).

Dr. Osman has no relevant financial conflicts of interest. Dr. Rubin has received grant support from Takeda, and has served as a consultant for Abbvie, Bristol-Myers Squibb, Janssen Pharmaceuticals, Lilly, Pfizer, and Takeda.

LAS VEGAS — In the treatment of inflammatory bowel disease, combinations of biologics or a biologic and tofacitinib appear to be generally safe and effective, according to a new systematic review and meta-analysis. The study updates a meta-analysis published in 2022, which included 13 studies. The new work included 23 studies that looked at 8 different combinations.

There is a potential concern that the high adverse event rates seen in biologics could be compounded when they are used in combination, according to Ali Osman, MD, who presented the results at a poster session at the annual Crohn’s & Colitis Congress^®, a partnership of the Crohn’s & Colitis Foundation and the American Gastroenterological Association. “Theoretically, you should have more side effects or more serious side effects, but interestingly we didn’t find major side effects. I think the key message is that the combinations of biologic agents are promising in terms of efficacy. In terms of adverse events, it doesn’t lead to major adverse events,” said Dr. Osman, an instructor at Washington University School of Medicine in St. Louis.

Washington University School of Medicine

Although the study did not directly compare the combinations, it did find potential differences in efficacy. “Our most effective [combination] in terms of response and remission was a combination of ustekinumab and an anti-TNF agent with a combined rate of 81.6%. Our lowest adverse events rate were [with the combination of] tofacitinib and vedolizumab,” said Dr. Osman.

The research is a useful update, according to David T. Rubin, MD, AGAF, who was asked for comment. “This has been explored before, but this is a nice effort to describe and try to compare studies of combination biological therapies or biologicals combined with [the JAK inhibitor]. This is to further explore the efforts being made to break the therapeutic ceiling by combining mechanisms, treat IBD and extra-intestinal manifestations with multiple agents simultaneously, and to explore novel treatment strategies,” said Dr. Rubin, professor of medicine and director of the Inflammatory Bowel Disease Center at University of Chicago Medicine.

He noted that the meta-analysis is limited by heterogeneity among the studies, many of which were case series that had been re-analyzed. The update included some prospective proof-of-concept studies of interest that were not in the earlier meta-analysis, including VEGA (anti-IL13 guselkumab plus anti-TNF golimumab versus either drug alone), and EXPLORER (vedolizumab, adalimumab, methotrexate), as well as a study of infliximab combined with natalizumab.

“We await the ongoing prospective trials of dual targeted therapies and novel designs for a future that will undoubtedly include thoughtful and rational combinations,” said Dr. Rubin.

The review included 23 studies that had a minimum of two patients who were treated with a combination of two biologics or a biologic and tofacitinib. The biologics included the anti-TNF antibodies adalimumab, certolizumab pegol, golimumab, and infliximab; as well as guselkumab, natalizumab, ustekinumab, and vedolizumab. Overall, the studies included 531 patients who underwent 543 therapeutic trials, using 8 different combinations.

The highest pooled clinical response observed was 81.6% with ustekinumab combined with an anti-TNF agent (P = .04, 9 studies, 44 therapeutic trials), which also had the highest remission rate of 64.2% (P = .03).

For the treatment of Crohn’s disease, the highest pooled clinical response and remission rates were also seen with ustekinumab combined with an anti-TNF agent (8 studies, 29 therapeutic trials), at 91.6% (P = .28). In ulcerative colitis, vedolizumab plus ustekinumab had the highest pooled clinical response rate at 100.0% (P = 1.00; 4 studies, 4 treatment trials) and ustekinumab plus an anti-TNF agent F at 100.0% (P = 1.00; 4 studies, 5 treatment trials).

Tofacitinib combined with vedolizumab had the lower adverse event rate (12.5%; P = .10; 8 studies, 76 treatment trials) followed by ustekinumab and an anti-TNF agent (12.7%; P = .08; 9 studies, 43 treatment trials) and tofacitinib plus anti-TNF (13.0%; 6 studies, 27 treatment trials).

Other combinations included guselkumab plus ant-TNF (1 study; clinical response, 69.0%), natalizumab plus an anti-TNF agent (1 study, clinical response, 36.5%), tofacitinib plus an anti-TNF agent (5 studies, clinical response, 71.6%), tofacitinib plus ustekinumab (5 studies, clinical response, 70.8%), tofacitinib plus vedolizumab (8 studies, clinical response, 52.7%), vedolizumab plus an anti-TNF agent (13 studies, clinical response, 62.8%), and vedolizumab plus ustekinumab (12 studies, clinical response, 79.3%).

Dr. Osman has no relevant financial conflicts of interest. Dr. Rubin has received grant support from Takeda, and has served as a consultant for Abbvie, Bristol-Myers Squibb, Janssen Pharmaceuticals, Lilly, Pfizer, and Takeda.

LAS VEGAS — In patients with inflammatory bowel disease (IBD), measurement of microbial cell-free DNA (cfDNA) in plasma may help distinguish active from asymptomatic disease, as well as between ulcerative colitis and Crohn’s disease.

“We think for indeterminate colitis, our assay can be quite beneficial in helping a clinician resolve or provide some additional insight and information. We have a very robust ability to predict from just the plasma microbial cell free DNA alone [whether] individuals are in remission or mild or moderate or active disease,” Shiv Kale, PhD, said during a presentation of the results at the annual Crohn’s & Colitis Congress^®, a partnership of the Crohn’s & Colitis Foundation and the American Gastroenterological Association. Dr. Kale is director of computational biomarker discovery at Karius Inc., a company whose Karius Test is also being developed as a rapid test for various infections and febrile neutropenia.

cfDNA has proved to be a useful biomarker for a range of conditions, including cancer screening, diagnosis and monitoring, prenatal testing, and organ monitoring following transplantation. The tests rely on the fact that both human and microbial cells release DNA after cell death, and it is readily detectable in plasma.

Dr. Kale described the company’s efforts to identify microbial species biomarkers and a classification scheme that he said leads to consistent performance.

The latest study included 196 patients with Crohn’s disease and 196 with ulcerative colitis, with each group including individuals in remission and with mild, moderate, and severe disease. All patients had an endoscopic assessment within 30 days of plasma measurements.

cfDNA distinguished between patients with Crohn’s disease, ulcerative colitis, and those who were asymptomatic. It distinguished between patients with IBD and those who were asymptomatic with a sensitivity of 99.5% and a specificity of 90%, which are equivalent to or better than other traditional measures to distinguish active IBD versus asymptomatic patients.

The researchers plan a follow-up study of 1,800 samples in partnership with the Crohn’s and Colitis Foundation to examine the ability of cfDNA to determine disease severity, as well as location of disease and Crohn’s disease subtypes.
 

An ‘Intriguing’ Method

During the Q&A session, one questioner pointed out that colorectal cancer and infections can produce microbial signatures that could be confounding the results. He asked: “Do you have a data set to compare [cfDNA findings] to serum from C. diff, norovirus, and colorectal cancer? And if you don’t, I strongly encourage you to do so.” Dr. Kale responded that the group is working on that.

Asked for comment, session moderator Dana Lukin, MD, AGAF, offered praise for the work.

“I think it’s an intriguing method that we haven’t seen used as a predictor in IBD. Using this as a biomarker of disease type is very intriguing for confirming a diagnosis. I think probably one of the most compelling points is the distinction between IBD and non-IBD. Our current serologic-based assays do not really do that very well. I think this is a big improvement on that,” said Dr. Lukin, associate professor of clinical medicine at Weill Cornell Medical College, New York.

Weill Cornell Medical College

He echoed the questioner’s comments, suggesting that a key question will be whether cfDNA can correlate with disease activity over time.

He also called for prospective studies to validate the approach.

If successful, the technology could have broad application. “Certainly in kids this might be useful or in folks that either aren’t as inclined to have invasive testing done, or for whatever logistic reasons it’s not easy,” said Dr. Lukin.

Dr. Kale is an employee of Karius. Dr. Lukin has no relevant financial disclosures..

LAS VEGAS — In patients with inflammatory bowel disease (IBD), measurement of microbial cell-free DNA (cfDNA) in plasma may help distinguish active from asymptomatic disease, as well as between ulcerative colitis and Crohn’s disease.

“We think for indeterminate colitis, our assay can be quite beneficial in helping a clinician resolve or provide some additional insight and information. We have a very robust ability to predict from just the plasma microbial cell free DNA alone [whether] individuals are in remission or mild or moderate or active disease,” Shiv Kale, PhD, said during a presentation of the results at the annual Crohn’s & Colitis Congress^®, a partnership of the Crohn’s & Colitis Foundation and the American Gastroenterological Association. Dr. Kale is director of computational biomarker discovery at Karius Inc., a company whose Karius Test is also being developed as a rapid test for various infections and febrile neutropenia.

cfDNA has proved to be a useful biomarker for a range of conditions, including cancer screening, diagnosis and monitoring, prenatal testing, and organ monitoring following transplantation. The tests rely on the fact that both human and microbial cells release DNA after cell death, and it is readily detectable in plasma.

Dr. Kale described the company’s efforts to identify microbial species biomarkers and a classification scheme that he said leads to consistent performance.

The latest study included 196 patients with Crohn’s disease and 196 with ulcerative colitis, with each group including individuals in remission and with mild, moderate, and severe disease. All patients had an endoscopic assessment within 30 days of plasma measurements.

cfDNA distinguished between patients with Crohn’s disease, ulcerative colitis, and those who were asymptomatic. It distinguished between patients with IBD and those who were asymptomatic with a sensitivity of 99.5% and a specificity of 90%, which are equivalent to or better than other traditional measures to distinguish active IBD versus asymptomatic patients.

The researchers plan a follow-up study of 1,800 samples in partnership with the Crohn’s and Colitis Foundation to examine the ability of cfDNA to determine disease severity, as well as location of disease and Crohn’s disease subtypes.
 

An ‘Intriguing’ Method

During the Q&A session, one questioner pointed out that colorectal cancer and infections can produce microbial signatures that could be confounding the results. He asked: “Do you have a data set to compare [cfDNA findings] to serum from C. diff, norovirus, and colorectal cancer? And if you don’t, I strongly encourage you to do so.” Dr. Kale responded that the group is working on that.

Asked for comment, session moderator Dana Lukin, MD, AGAF, offered praise for the work.

“I think it’s an intriguing method that we haven’t seen used as a predictor in IBD. Using this as a biomarker of disease type is very intriguing for confirming a diagnosis. I think probably one of the most compelling points is the distinction between IBD and non-IBD. Our current serologic-based assays do not really do that very well. I think this is a big improvement on that,” said Dr. Lukin, associate professor of clinical medicine at Weill Cornell Medical College, New York.

Weill Cornell Medical College

He echoed the questioner’s comments, suggesting that a key question will be whether cfDNA can correlate with disease activity over time.

He also called for prospective studies to validate the approach.

If successful, the technology could have broad application. “Certainly in kids this might be useful or in folks that either aren’t as inclined to have invasive testing done, or for whatever logistic reasons it’s not easy,” said Dr. Lukin.

Dr. Kale is an employee of Karius. Dr. Lukin has no relevant financial disclosures..

LAS VEGAS — In patients with inflammatory bowel disease (IBD), measurement of microbial cell-free DNA (cfDNA) in plasma may help distinguish active from asymptomatic disease, as well as between ulcerative colitis and Crohn’s disease.

“We think for indeterminate colitis, our assay can be quite beneficial in helping a clinician resolve or provide some additional insight and information. We have a very robust ability to predict from just the plasma microbial cell free DNA alone [whether] individuals are in remission or mild or moderate or active disease,” Shiv Kale, PhD, said during a presentation of the results at the annual Crohn’s & Colitis Congress^®, a partnership of the Crohn’s & Colitis Foundation and the American Gastroenterological Association. Dr. Kale is director of computational biomarker discovery at Karius Inc., a company whose Karius Test is also being developed as a rapid test for various infections and febrile neutropenia.

cfDNA has proved to be a useful biomarker for a range of conditions, including cancer screening, diagnosis and monitoring, prenatal testing, and organ monitoring following transplantation. The tests rely on the fact that both human and microbial cells release DNA after cell death, and it is readily detectable in plasma.

Dr. Kale described the company’s efforts to identify microbial species biomarkers and a classification scheme that he said leads to consistent performance.

The latest study included 196 patients with Crohn’s disease and 196 with ulcerative colitis, with each group including individuals in remission and with mild, moderate, and severe disease. All patients had an endoscopic assessment within 30 days of plasma measurements.

cfDNA distinguished between patients with Crohn’s disease, ulcerative colitis, and those who were asymptomatic. It distinguished between patients with IBD and those who were asymptomatic with a sensitivity of 99.5% and a specificity of 90%, which are equivalent to or better than other traditional measures to distinguish active IBD versus asymptomatic patients.

The researchers plan a follow-up study of 1,800 samples in partnership with the Crohn’s and Colitis Foundation to examine the ability of cfDNA to determine disease severity, as well as location of disease and Crohn’s disease subtypes.
 

An ‘Intriguing’ Method

During the Q&A session, one questioner pointed out that colorectal cancer and infections can produce microbial signatures that could be confounding the results. He asked: “Do you have a data set to compare [cfDNA findings] to serum from C. diff, norovirus, and colorectal cancer? And if you don’t, I strongly encourage you to do so.” Dr. Kale responded that the group is working on that.

Asked for comment, session moderator Dana Lukin, MD, AGAF, offered praise for the work.

“I think it’s an intriguing method that we haven’t seen used as a predictor in IBD. Using this as a biomarker of disease type is very intriguing for confirming a diagnosis. I think probably one of the most compelling points is the distinction between IBD and non-IBD. Our current serologic-based assays do not really do that very well. I think this is a big improvement on that,” said Dr. Lukin, associate professor of clinical medicine at Weill Cornell Medical College, New York.

Weill Cornell Medical College

He echoed the questioner’s comments, suggesting that a key question will be whether cfDNA can correlate with disease activity over time.

He also called for prospective studies to validate the approach.

If successful, the technology could have broad application. “Certainly in kids this might be useful or in folks that either aren’t as inclined to have invasive testing done, or for whatever logistic reasons it’s not easy,” said Dr. Lukin.

Dr. Kale is an employee of Karius. Dr. Lukin has no relevant financial disclosures..