Multiple Sclerosis

MS CONFERENCE NEWS

Contents

• Common MS treatment wears off more quickly in Black patients
• A less expensive, more convenient treatment option for MS?
• Investigational drug reduces brain lesions in highly active MS
• Evobrutinib may lower nerve damage biomarker levels
• Disease progression and therapy response vary in MS by ethnicity
• Some MS treatments may heighten COVID risk
• Natalizumab postinfusion reactions

MS CONFERENCE NEWS

Contents

• Common MS treatment wears off more quickly in Black patients
• A less expensive, more convenient treatment option for MS?
• Investigational drug reduces brain lesions in highly active MS
• Evobrutinib may lower nerve damage biomarker levels
• Disease progression and therapy response vary in MS by ethnicity
• Some MS treatments may heighten COVID risk
• Natalizumab postinfusion reactions

MS CONFERENCE NEWS

Contents

• Common MS treatment wears off more quickly in Black patients
• A less expensive, more convenient treatment option for MS?
• Investigational drug reduces brain lesions in highly active MS
• Evobrutinib may lower nerve damage biomarker levels
• Disease progression and therapy response vary in MS by ethnicity
• Some MS treatments may heighten COVID risk
• Natalizumab postinfusion reactions

Patients with multiple sclerosis (MS) may soon have another less expensive, more convenient treatment option compared with other agents in the same drug class, new research suggests.

Results from two new phase 3 trials show that the investigational drug ublituximab (TG Therapeutics), a novel glycoengineered anti-CD20 monoclonal antibody, significantly reduced the annualized relapse rate (ARR) and MRI parameters compared with teriflunomide in patients with relapsing forms of MS.

The positive results suggest “another strong and reasonably safe medication might be available to increase the repertoire of effective medicines that we can offer MS patients,” said Lawrence Steinman, MD, professor of neurology, Stanford (Calif.) University. “These are delightful data in my opinion,” he added.

The findings were presented at the 2021 Congress of the European Academy of Neurology.
 

‘Glycoengineered’ antibody

If approved by the U.S. Food and Drug Administration, ublituximab would become the only glycoengineered anti-CD20 monoclonal antibody for MS. Glycoengineering involves changing protein-associated carbohydrates to alter pharmacokinetic properties.

There are currently two approved anti-CD20 agents for MS, but both require 4-hour infusions. For many patients, this means “at least half their day is shot,” Dr. Steinman said. “A lot of people don’t want to or can’t miss a half day of work.” Ublituximab can be infused more rapidly, he noted.

For the study, the investigators analyzed data from the ULTIMATE I and ULTIMATE II studies, which included 1,089 mostly White patients with MS. Almost all participants had the relapsing-remitting form of the disease and were between 18 and 55 years of age (average age, 36 years). Their scores on the Expanded Disability Status Scale (EDSS) were from 0 to 5.5, and they had been neurologically stable for at least 30 days prior to screening.

Participants were required to have experienced two or more relapses within the previous 2 years or one or more relapses in the year prior and/or had one gadolinium-enhancing lesion in the year prior to screening.

The study population was mostly from the Ukraine and Russia. It is more difficult to recruit patients into MS drug studies in the United States and Western Europe because many patients in these countries are already receiving approved drugs, which deters enrollment, explained Dr. Steinman.

Investigators randomly assigned the participants to receive the investigational drug or 14 mg of oral teriflunomide, a drug that blocks the proliferation of immune cells, once daily. The ublituximab group received an initial infusion of 150 mg over 4 hours and then a 1-hour infusion of 450 mg every 6 months over the course of the 96-week study.
 

Primary outcomes met

For ULTIMATE I, the primary outcome was ARR. Results showed that this rate was 0.076 for the ublituximab group and 0.188 for the teriflunomide group, resulting in a 60% relative reduction (adjusted ARR ratio, 0.406; 95% confidence interval, 0.268-0.615; P < .0001).

In ULTIMATE II, the ARR was 0.091 for ublituximab and 0.178 for teriflunomide, for a relative reduction of 49% (ARR ratio, 0.509; 95% CI, 0.330-0.784; P = .0022).

One way of interpreting these data is that patients are likely to have only one relapse in 10 years, said Dr. Steinman. “So that was very good news.”

It is not clear why relative reductions for ARR differed between the two studies; “probably the real number is somewhere between 60% and 49%,” Dr. Steinman said.

From MRI scans, the total number of relevant lesions was reduced by 97% with ublituximab compared with teriflunomide in ULTIMATE I and by 96% in trial II.

Another “piece of really good news” from the studies is that the drug led to a significant improvement in disability, rather than “just slowing it down,” Dr. Steinman noted.

There was a 116% increased chance of confirmed disability improvement (CDI) with ublituximab versus teriflunomide in the first trial (P = .003) and a 103% increased chance of CDI in the second trial (P = .0026).

The percentage of patients who had no evidence of disease activity was 198% for the patients who received the trial drug in comparison with the control group in trial I and 277% in trial II (P < .0001 for both trials).
 

A life changer?

Dr. Steinman said the “robust” findings suggest that patients with MS “won’t have a relapse and will improve. Those are two pretty good messages for somebody with this wretched disease.”

The investigational drug was generally well tolerated. The percentage of adverse events (AEs) with the study drug was about the same as with the comparator. About 9.5% of the ublituximab group had a serious AE, compared with 6.2% of the teriflunomide group.

The ublituximab group had more infections (4.0% vs. 2.6%), which Dr. Steinman said is not surprising because the drug is a potent immune suppressant. “It’s an unfortunate consequence of this kind of strong biologic that knocks down a whole arm of the immune system. The wonder to me is that these are still rather infrequent,” he said.

If approved, “it will be interesting to see how regulatory agencies handle this in terms of risk mitigation,” said Dr. Steinman. He added that a warning label might be a consideration.

However, the safety of this drug “is certainly acceptable,” said Dr. Steinman. “In general, this drug is not that different from the other drugs in the class of anti-CD20s.”

Dr. Steinman noted that he understands why some patients prefer an oral drug and may have an “aversion to getting stuck with a needle,” but he pointed out that teriflunomide has some drawbacks. For example, it tends to thin hair.

“For people who have had relapses, people who are unable to do what they want to in life – attend school, hold down jobs, exercise – this new drug could really be life changing,” he said.

He added that he would “strongly urge” his own family and relatives, if they had MS, to take one of the anti-CD20 drugs.

Ublituximab also has a number of advantages over the other agents in the same class. Not only does it work well, have an acceptable safety profile, and require a shorter infusion time, but it could also be less costly, Dr. Steinman noted. “The company has said it intends to come in at a lower price point,” he said.

The company is now planning to prepare a biological license application for use in MS. Interestingly, the drug, in combination with umbralisib (Ukoniq), is already under review by the FDA for use in chronic lymphoctytic leukemia and small lymphocytic lymphoma.
 

Striking improvement

When session chair Marcello Moccio, MD, Multiple Sclerosis Clinical Care and Research Center, Federico II University, Naples, Italy, asked Dr. Steinman to elaborate on the “very strong effect” of the drug with regard to improving disability, Dr. Steinman said the improvement was “striking.”

Being able to talk to patients about possible improvement rather than about delaying disability “is really gratifying” and provides a “much more constructive and optimistic outlook,” he said.

He noted that as physicians improve their management of patients with MS “and are paying attention to things that we haven’t over the years, like vitamin D and even mental health,” disability progression management “is getting better.”

Dr. Steinman is a consultant for TG Therapeutics.

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

Patients with multiple sclerosis (MS) may soon have another less expensive, more convenient treatment option compared with other agents in the same drug class, new research suggests.

Results from two new phase 3 trials show that the investigational drug ublituximab (TG Therapeutics), a novel glycoengineered anti-CD20 monoclonal antibody, significantly reduced the annualized relapse rate (ARR) and MRI parameters compared with teriflunomide in patients with relapsing forms of MS.

The positive results suggest “another strong and reasonably safe medication might be available to increase the repertoire of effective medicines that we can offer MS patients,” said Lawrence Steinman, MD, professor of neurology, Stanford (Calif.) University. “These are delightful data in my opinion,” he added.

The findings were presented at the 2021 Congress of the European Academy of Neurology.
 

‘Glycoengineered’ antibody

If approved by the U.S. Food and Drug Administration, ublituximab would become the only glycoengineered anti-CD20 monoclonal antibody for MS. Glycoengineering involves changing protein-associated carbohydrates to alter pharmacokinetic properties.

There are currently two approved anti-CD20 agents for MS, but both require 4-hour infusions. For many patients, this means “at least half their day is shot,” Dr. Steinman said. “A lot of people don’t want to or can’t miss a half day of work.” Ublituximab can be infused more rapidly, he noted.

For the study, the investigators analyzed data from the ULTIMATE I and ULTIMATE II studies, which included 1,089 mostly White patients with MS. Almost all participants had the relapsing-remitting form of the disease and were between 18 and 55 years of age (average age, 36 years). Their scores on the Expanded Disability Status Scale (EDSS) were from 0 to 5.5, and they had been neurologically stable for at least 30 days prior to screening.

Participants were required to have experienced two or more relapses within the previous 2 years or one or more relapses in the year prior and/or had one gadolinium-enhancing lesion in the year prior to screening.

The study population was mostly from the Ukraine and Russia. It is more difficult to recruit patients into MS drug studies in the United States and Western Europe because many patients in these countries are already receiving approved drugs, which deters enrollment, explained Dr. Steinman.

Investigators randomly assigned the participants to receive the investigational drug or 14 mg of oral teriflunomide, a drug that blocks the proliferation of immune cells, once daily. The ublituximab group received an initial infusion of 150 mg over 4 hours and then a 1-hour infusion of 450 mg every 6 months over the course of the 96-week study.
 

Primary outcomes met

For ULTIMATE I, the primary outcome was ARR. Results showed that this rate was 0.076 for the ublituximab group and 0.188 for the teriflunomide group, resulting in a 60% relative reduction (adjusted ARR ratio, 0.406; 95% confidence interval, 0.268-0.615; P < .0001).

In ULTIMATE II, the ARR was 0.091 for ublituximab and 0.178 for teriflunomide, for a relative reduction of 49% (ARR ratio, 0.509; 95% CI, 0.330-0.784; P = .0022).

One way of interpreting these data is that patients are likely to have only one relapse in 10 years, said Dr. Steinman. “So that was very good news.”

It is not clear why relative reductions for ARR differed between the two studies; “probably the real number is somewhere between 60% and 49%,” Dr. Steinman said.

From MRI scans, the total number of relevant lesions was reduced by 97% with ublituximab compared with teriflunomide in ULTIMATE I and by 96% in trial II.

Another “piece of really good news” from the studies is that the drug led to a significant improvement in disability, rather than “just slowing it down,” Dr. Steinman noted.

There was a 116% increased chance of confirmed disability improvement (CDI) with ublituximab versus teriflunomide in the first trial (P = .003) and a 103% increased chance of CDI in the second trial (P = .0026).

The percentage of patients who had no evidence of disease activity was 198% for the patients who received the trial drug in comparison with the control group in trial I and 277% in trial II (P < .0001 for both trials).
 

A life changer?

Dr. Steinman said the “robust” findings suggest that patients with MS “won’t have a relapse and will improve. Those are two pretty good messages for somebody with this wretched disease.”

The investigational drug was generally well tolerated. The percentage of adverse events (AEs) with the study drug was about the same as with the comparator. About 9.5% of the ublituximab group had a serious AE, compared with 6.2% of the teriflunomide group.

The ublituximab group had more infections (4.0% vs. 2.6%), which Dr. Steinman said is not surprising because the drug is a potent immune suppressant. “It’s an unfortunate consequence of this kind of strong biologic that knocks down a whole arm of the immune system. The wonder to me is that these are still rather infrequent,” he said.

If approved, “it will be interesting to see how regulatory agencies handle this in terms of risk mitigation,” said Dr. Steinman. He added that a warning label might be a consideration.

However, the safety of this drug “is certainly acceptable,” said Dr. Steinman. “In general, this drug is not that different from the other drugs in the class of anti-CD20s.”

Dr. Steinman noted that he understands why some patients prefer an oral drug and may have an “aversion to getting stuck with a needle,” but he pointed out that teriflunomide has some drawbacks. For example, it tends to thin hair.

“For people who have had relapses, people who are unable to do what they want to in life – attend school, hold down jobs, exercise – this new drug could really be life changing,” he said.

He added that he would “strongly urge” his own family and relatives, if they had MS, to take one of the anti-CD20 drugs.

Ublituximab also has a number of advantages over the other agents in the same class. Not only does it work well, have an acceptable safety profile, and require a shorter infusion time, but it could also be less costly, Dr. Steinman noted. “The company has said it intends to come in at a lower price point,” he said.

The company is now planning to prepare a biological license application for use in MS. Interestingly, the drug, in combination with umbralisib (Ukoniq), is already under review by the FDA for use in chronic lymphoctytic leukemia and small lymphocytic lymphoma.
 

Striking improvement

When session chair Marcello Moccio, MD, Multiple Sclerosis Clinical Care and Research Center, Federico II University, Naples, Italy, asked Dr. Steinman to elaborate on the “very strong effect” of the drug with regard to improving disability, Dr. Steinman said the improvement was “striking.”

Being able to talk to patients about possible improvement rather than about delaying disability “is really gratifying” and provides a “much more constructive and optimistic outlook,” he said.

He noted that as physicians improve their management of patients with MS “and are paying attention to things that we haven’t over the years, like vitamin D and even mental health,” disability progression management “is getting better.”

Dr. Steinman is a consultant for TG Therapeutics.

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

Patients with multiple sclerosis (MS) may soon have another less expensive, more convenient treatment option compared with other agents in the same drug class, new research suggests.

Results from two new phase 3 trials show that the investigational drug ublituximab (TG Therapeutics), a novel glycoengineered anti-CD20 monoclonal antibody, significantly reduced the annualized relapse rate (ARR) and MRI parameters compared with teriflunomide in patients with relapsing forms of MS.

The positive results suggest “another strong and reasonably safe medication might be available to increase the repertoire of effective medicines that we can offer MS patients,” said Lawrence Steinman, MD, professor of neurology, Stanford (Calif.) University. “These are delightful data in my opinion,” he added.

The findings were presented at the 2021 Congress of the European Academy of Neurology.
 

‘Glycoengineered’ antibody

If approved by the U.S. Food and Drug Administration, ublituximab would become the only glycoengineered anti-CD20 monoclonal antibody for MS. Glycoengineering involves changing protein-associated carbohydrates to alter pharmacokinetic properties.

There are currently two approved anti-CD20 agents for MS, but both require 4-hour infusions. For many patients, this means “at least half their day is shot,” Dr. Steinman said. “A lot of people don’t want to or can’t miss a half day of work.” Ublituximab can be infused more rapidly, he noted.

For the study, the investigators analyzed data from the ULTIMATE I and ULTIMATE II studies, which included 1,089 mostly White patients with MS. Almost all participants had the relapsing-remitting form of the disease and were between 18 and 55 years of age (average age, 36 years). Their scores on the Expanded Disability Status Scale (EDSS) were from 0 to 5.5, and they had been neurologically stable for at least 30 days prior to screening.

Participants were required to have experienced two or more relapses within the previous 2 years or one or more relapses in the year prior and/or had one gadolinium-enhancing lesion in the year prior to screening.

The study population was mostly from the Ukraine and Russia. It is more difficult to recruit patients into MS drug studies in the United States and Western Europe because many patients in these countries are already receiving approved drugs, which deters enrollment, explained Dr. Steinman.

Investigators randomly assigned the participants to receive the investigational drug or 14 mg of oral teriflunomide, a drug that blocks the proliferation of immune cells, once daily. The ublituximab group received an initial infusion of 150 mg over 4 hours and then a 1-hour infusion of 450 mg every 6 months over the course of the 96-week study.
 

Primary outcomes met

For ULTIMATE I, the primary outcome was ARR. Results showed that this rate was 0.076 for the ublituximab group and 0.188 for the teriflunomide group, resulting in a 60% relative reduction (adjusted ARR ratio, 0.406; 95% confidence interval, 0.268-0.615; P < .0001).

In ULTIMATE II, the ARR was 0.091 for ublituximab and 0.178 for teriflunomide, for a relative reduction of 49% (ARR ratio, 0.509; 95% CI, 0.330-0.784; P = .0022).

One way of interpreting these data is that patients are likely to have only one relapse in 10 years, said Dr. Steinman. “So that was very good news.”

It is not clear why relative reductions for ARR differed between the two studies; “probably the real number is somewhere between 60% and 49%,” Dr. Steinman said.

From MRI scans, the total number of relevant lesions was reduced by 97% with ublituximab compared with teriflunomide in ULTIMATE I and by 96% in trial II.

Another “piece of really good news” from the studies is that the drug led to a significant improvement in disability, rather than “just slowing it down,” Dr. Steinman noted.

There was a 116% increased chance of confirmed disability improvement (CDI) with ublituximab versus teriflunomide in the first trial (P = .003) and a 103% increased chance of CDI in the second trial (P = .0026).

The percentage of patients who had no evidence of disease activity was 198% for the patients who received the trial drug in comparison with the control group in trial I and 277% in trial II (P < .0001 for both trials).
 

A life changer?

Dr. Steinman said the “robust” findings suggest that patients with MS “won’t have a relapse and will improve. Those are two pretty good messages for somebody with this wretched disease.”

The investigational drug was generally well tolerated. The percentage of adverse events (AEs) with the study drug was about the same as with the comparator. About 9.5% of the ublituximab group had a serious AE, compared with 6.2% of the teriflunomide group.

The ublituximab group had more infections (4.0% vs. 2.6%), which Dr. Steinman said is not surprising because the drug is a potent immune suppressant. “It’s an unfortunate consequence of this kind of strong biologic that knocks down a whole arm of the immune system. The wonder to me is that these are still rather infrequent,” he said.

If approved, “it will be interesting to see how regulatory agencies handle this in terms of risk mitigation,” said Dr. Steinman. He added that a warning label might be a consideration.

However, the safety of this drug “is certainly acceptable,” said Dr. Steinman. “In general, this drug is not that different from the other drugs in the class of anti-CD20s.”

Dr. Steinman noted that he understands why some patients prefer an oral drug and may have an “aversion to getting stuck with a needle,” but he pointed out that teriflunomide has some drawbacks. For example, it tends to thin hair.

“For people who have had relapses, people who are unable to do what they want to in life – attend school, hold down jobs, exercise – this new drug could really be life changing,” he said.

He added that he would “strongly urge” his own family and relatives, if they had MS, to take one of the anti-CD20 drugs.

Ublituximab also has a number of advantages over the other agents in the same class. Not only does it work well, have an acceptable safety profile, and require a shorter infusion time, but it could also be less costly, Dr. Steinman noted. “The company has said it intends to come in at a lower price point,” he said.

The company is now planning to prepare a biological license application for use in MS. Interestingly, the drug, in combination with umbralisib (Ukoniq), is already under review by the FDA for use in chronic lymphoctytic leukemia and small lymphocytic lymphoma.
 

Striking improvement

When session chair Marcello Moccio, MD, Multiple Sclerosis Clinical Care and Research Center, Federico II University, Naples, Italy, asked Dr. Steinman to elaborate on the “very strong effect” of the drug with regard to improving disability, Dr. Steinman said the improvement was “striking.”

Being able to talk to patients about possible improvement rather than about delaying disability “is really gratifying” and provides a “much more constructive and optimistic outlook,” he said.

He noted that as physicians improve their management of patients with MS “and are paying attention to things that we haven’t over the years, like vitamin D and even mental health,” disability progression management “is getting better.”

Dr. Steinman is a consultant for TG Therapeutics.

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

Mitzi Joi Williams, MD, Medical Director and CEO of Joi Life Wellness Group in Atlanta, GA, discusses treatment data and other timely updates in multiple sclerosis (MS) coming out of the American Academy of Neurology (AAN) 2021 Annual Meeting.

Dr. Williams introduces the new National African Americans with Multiple Sclerosis Registry, an important initiative aimed at expanding evidence-based knowledge of MS in African American patients, increasing clinical trial participation, and engaging in research that will benefit this community.

In a review of a long-term analysis of evobrutinib, Dr. Williams shares the positive efficacy and safety outcomes that were observed and maintained in patients receiving evobrutinib 75 mg twice daily throughout the duration of the 48-week double-blind, randomized, phase 2 trial and the 60-week open-label extension portions of the study.

Next, Dr. Williams highlights a study of patients taking disease-modifying therapies (DMTs) at the NYU MS Care Center. The analysis found factors such as public insurance status, younger age, and Hispanic ethnicity to be larger predictors of COVID-19 infection in this patient population than any of the DMTs that were studied.

Lastly, Dr. Williams discusses an analysis of racial and ethnic differences in patients receiving ofatumumab in the ASCLEPIOS I/II and APOLITOS trials. The study revealed no clinically relevant differences in annualized relapse rate, pharmacokinetics, B-cell depletion, or safety profile between the study populations.

--

Mitzi Joi Williams, MD, Medical Director, CEO; Department of Neurology, Joi Life Wellness Group, Atlanta, Georgia

Mitzi Joi Williams, MD, has disclosed the following relevant financial relationships:

Serve(d) as a director, officer, partner, employee, advisor, consultant, or trustee for: Biogen Idec; EMD Serono; Genentech; Novartis; Bristol-Myers Squibb; AbbVie; Alexion; Novartis.

Serve(d) as a speaker or a member of a speakers bureau for: Biogen Idec; EMD Serono; Genentech Roche; Novartis; Bristol-Myers Squibb.

Mitzi Joi Williams, MD, Medical Director and CEO of Joi Life Wellness Group in Atlanta, GA, discusses treatment data and other timely updates in multiple sclerosis (MS) coming out of the American Academy of Neurology (AAN) 2021 Annual Meeting.

Dr. Williams introduces the new National African Americans with Multiple Sclerosis Registry, an important initiative aimed at expanding evidence-based knowledge of MS in African American patients, increasing clinical trial participation, and engaging in research that will benefit this community.

In a review of a long-term analysis of evobrutinib, Dr. Williams shares the positive efficacy and safety outcomes that were observed and maintained in patients receiving evobrutinib 75 mg twice daily throughout the duration of the 48-week double-blind, randomized, phase 2 trial and the 60-week open-label extension portions of the study.

Next, Dr. Williams highlights a study of patients taking disease-modifying therapies (DMTs) at the NYU MS Care Center. The analysis found factors such as public insurance status, younger age, and Hispanic ethnicity to be larger predictors of COVID-19 infection in this patient population than any of the DMTs that were studied.

Lastly, Dr. Williams discusses an analysis of racial and ethnic differences in patients receiving ofatumumab in the ASCLEPIOS I/II and APOLITOS trials. The study revealed no clinically relevant differences in annualized relapse rate, pharmacokinetics, B-cell depletion, or safety profile between the study populations.

--

Mitzi Joi Williams, MD, Medical Director, CEO; Department of Neurology, Joi Life Wellness Group, Atlanta, Georgia

Mitzi Joi Williams, MD, has disclosed the following relevant financial relationships:

Serve(d) as a director, officer, partner, employee, advisor, consultant, or trustee for: Biogen Idec; EMD Serono; Genentech; Novartis; Bristol-Myers Squibb; AbbVie; Alexion; Novartis.

Serve(d) as a speaker or a member of a speakers bureau for: Biogen Idec; EMD Serono; Genentech Roche; Novartis; Bristol-Myers Squibb.

Mitzi Joi Williams, MD, Medical Director and CEO of Joi Life Wellness Group in Atlanta, GA, discusses treatment data and other timely updates in multiple sclerosis (MS) coming out of the American Academy of Neurology (AAN) 2021 Annual Meeting.

Dr. Williams introduces the new National African Americans with Multiple Sclerosis Registry, an important initiative aimed at expanding evidence-based knowledge of MS in African American patients, increasing clinical trial participation, and engaging in research that will benefit this community.

In a review of a long-term analysis of evobrutinib, Dr. Williams shares the positive efficacy and safety outcomes that were observed and maintained in patients receiving evobrutinib 75 mg twice daily throughout the duration of the 48-week double-blind, randomized, phase 2 trial and the 60-week open-label extension portions of the study.

Next, Dr. Williams highlights a study of patients taking disease-modifying therapies (DMTs) at the NYU MS Care Center. The analysis found factors such as public insurance status, younger age, and Hispanic ethnicity to be larger predictors of COVID-19 infection in this patient population than any of the DMTs that were studied.

Lastly, Dr. Williams discusses an analysis of racial and ethnic differences in patients receiving ofatumumab in the ASCLEPIOS I/II and APOLITOS trials. The study revealed no clinically relevant differences in annualized relapse rate, pharmacokinetics, B-cell depletion, or safety profile between the study populations.

--

Mitzi Joi Williams, MD, Medical Director, CEO; Department of Neurology, Joi Life Wellness Group, Atlanta, Georgia

Mitzi Joi Williams, MD, has disclosed the following relevant financial relationships:

Serve(d) as a director, officer, partner, employee, advisor, consultant, or trustee for: Biogen Idec; EMD Serono; Genentech; Novartis; Bristol-Myers Squibb; AbbVie; Alexion; Novartis.

Serve(d) as a speaker or a member of a speakers bureau for: Biogen Idec; EMD Serono; Genentech Roche; Novartis; Bristol-Myers Squibb.

The investigational drug tolebrutinib effectively reduces brain lesions in patients with highly active relapsing remitting multiple sclerosis (MS), new research suggests. After 12 weeks of treatment, MRI revealed the drug, a Bruton tyrosine kinase inhibitor, was associated with a 93% reduction in new gadolinium-enhancing lesions and an 89% reduction in new and enlarging T2 lesions, compared with placebo.

The analysis supports that tolebrutinib is as effective in this group of patients with highly active relapsing remitting MS as it is in the overall patient population, study investigator said Anthony Traboulsee, MD, professor and research chair of the MS Society of Canada at the University of British Columbia, Vancouver.

“What is additionally exciting is that this effect was seen within a relatively short period of time – within 3 months. This will be important for patients and physicians to know how soon to expect a treatment to work if they have high-risk baseline features,” he added.

The findings were presented at the 2021 annual meeting of the American Academy of Neurology.
 

New drug class

BTK inhibitors are a new class of oral therapies, and phase 2 trials in patients with relapsing remitting MS show they are safe and effective. BTK inhibitors modulate B lymphocytes without causing depletion, thus reducing the risk for lymphopenia or immunoglobulin depletion.

Tolebrutinib is a covalent, irreversible BTK inhibitor that penetrates the central nervous system well. In a previous randomized, double-blind, phase 2b trial, it was well tolerated and was associated with a dose-dependent reduction in new or enlarging MRI lesions. Of the four doses studied, the 60-mg dose was the most effective.

Because highly active MS is associated with a more aggressive disease course, the investigators examined tolebrutinib’s efficacy and safety in patients with highly active disease who were participants in the phase 2b trial. This subgroup analysis had been predefined in the study’s statistical analysis plan.

The investigators defined highly active disease as one relapse in the year before screening and one or more gadolinium-enhancing lesions on MRI performed within 6 months before screening, or nine or more T2 lesions at baseline, or two or more relapses in the year before screening.

Of the 130 participants enrolled in the study, 61 (47%) met criteria for highly active disease at baseline. These patients represented 44% of the placebo group (29 of 66 participants) who later crossed over to tolebrutinib treatment.

At baseline, demographics in patients with highly active disease were similar to those of the overall study population, although it was slightly younger with slightly shorter disease duration, slightly less disability, and a greater likelihood of gadolinium-enhancing lesions at baseline versus the overall study population.

The proportion of patients with highly active disease was 36% in the 5-mg group, 59% in the 15-mg group, 48% in the 30-mg group, and 44% in the 60-mg group.

The study’s primary objective was to examine the dose-response relationship after 12 weeks of treatment with tolebrutinib.
 

Good safety, tolerability

After 12 weeks, the mean number of new gadolinium-enhancing lesions in patients with highly active disease was 0.82 in the 5-mg group, 0.50 in the 15-mg group, 0.38 in the 30-mg group, and 0.08 in the 60-mg group. The corresponding measurements in the overall study population were 1.39 in the 5-mg group, 0.77 in the 15-mg group, 0.76 in the 30-mg group, and 0.13 in the 60-mg group.

After 12 weeks, numbers of new or enlarging T2 lesions among patients with highly active disease were 1.09 (5 mg), 0.89 (15 mg), 0.75 (30 mg) and 0.15 (60 mg). The corresponding measurements in the overall population were 1.90 (5 mg), 1.32 (15 mg) 1.30 (30 mg) and 0.23 (60 mg).

Tolebrutinib had excellent safety and tolerability in patients with highly active disease and in the overall population, said Dr. Traboulsee.

No adverse events were linked to the study drug. One patient with highly active disease who received 60 mg of tolebrutinib had transient elevated ALT levels greater than three times the upper limit of normal. This patient also previously had elevated ALT at baseline.

One serious adverse event occurred during the study. One patient was hospitalized for MS relapse. The patient had been assigned to the 60-mg dose of tolebrutinib. The patient recovered and remained on study treatment.

Two independent studies have indicated that BTK inhibition is an effective treatment approach for relapsing remitting MS. The main advantage of tolebrutinib is its ability to penetrate the CNS.

“Most, if not all, MS therapies mostly affect the peripheral immune system, preventing autoreactive lymphocytes crossing the blood-brain barrier and causing damage,” said Dr. Traboulsee.

Therapies that enter the CNS can target abnormal immune cells, including microglia that are believed to promote disease progression. “If this is an important target, then we now have a highly CNS-penetrant drug that could potentially change the course of progression,” said Dr. Traboulsee.

Serum biomarkers and advanced imaging data collected during the phase 2 trial could help clarify the mechanisms of disease progression and the effects of tolebrutinib, he added. “Ultimately though, it is the clinical outcomes in the phase 3 programs that are essential to know where to place tolebrutinib in the future care of relapsing and progressive forms of MS.”
 

Not an unmet need

Commenting on the findings, Joseph R. Berger, MD, professor of neurology and associate chief of the MS division at the University of Pennsylvania, Philadelphia, said there are several available treatments that effectively suppress clinical and radiologic evidence of acute inflammation in relapsing remitting MS.

“Any new drug that is to be added to that pharmacological armamentarium should have distinct advantages over what is currently available. Treating relapsing remitting MS is not, in my opinion, an unmet need in MS; treating progressive disease is,” he said.

Dr. Berger said that tolebrutinib appears to be better than placebo in suppressing disease activity, particularly at higher doses. “However, the study is small – only 61 patients,” noted Dr. Berger, who was not involved in the study.

In addition, disease activity was assessed after 4 weeks with placebo and at 12 weeks with tolebrutinib treatment.

“As there is a regression to the mean with respect to disease activity, the interpretation of the apparent response to tolebrutinib needs to be tempered with that in mind,” said Dr. Berger.

Evaluating how tolebrutinib compares with other BTK inhibitors will require a head-to-head trial. “I’d be more interested in whether the drug has an effect on progressive disease,” Dr. Berger concluded.

The study was supported by Sanofi Genzyme, which is developing tolebrutinib. Dr. Traboulsee has received research grant support, honoraria for consulting, and honoraria for participating in a speakers’ bureau from Sanofi Genzyme. Dr. Berger disclosed no relevant financial relationships.

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

The investigational drug tolebrutinib effectively reduces brain lesions in patients with highly active relapsing remitting multiple sclerosis (MS), new research suggests. After 12 weeks of treatment, MRI revealed the drug, a Bruton tyrosine kinase inhibitor, was associated with a 93% reduction in new gadolinium-enhancing lesions and an 89% reduction in new and enlarging T2 lesions, compared with placebo.

The analysis supports that tolebrutinib is as effective in this group of patients with highly active relapsing remitting MS as it is in the overall patient population, study investigator said Anthony Traboulsee, MD, professor and research chair of the MS Society of Canada at the University of British Columbia, Vancouver.

“What is additionally exciting is that this effect was seen within a relatively short period of time – within 3 months. This will be important for patients and physicians to know how soon to expect a treatment to work if they have high-risk baseline features,” he added.

The findings were presented at the 2021 annual meeting of the American Academy of Neurology.
 

New drug class

BTK inhibitors are a new class of oral therapies, and phase 2 trials in patients with relapsing remitting MS show they are safe and effective. BTK inhibitors modulate B lymphocytes without causing depletion, thus reducing the risk for lymphopenia or immunoglobulin depletion.

Tolebrutinib is a covalent, irreversible BTK inhibitor that penetrates the central nervous system well. In a previous randomized, double-blind, phase 2b trial, it was well tolerated and was associated with a dose-dependent reduction in new or enlarging MRI lesions. Of the four doses studied, the 60-mg dose was the most effective.

Because highly active MS is associated with a more aggressive disease course, the investigators examined tolebrutinib’s efficacy and safety in patients with highly active disease who were participants in the phase 2b trial. This subgroup analysis had been predefined in the study’s statistical analysis plan.

The investigators defined highly active disease as one relapse in the year before screening and one or more gadolinium-enhancing lesions on MRI performed within 6 months before screening, or nine or more T2 lesions at baseline, or two or more relapses in the year before screening.

Of the 130 participants enrolled in the study, 61 (47%) met criteria for highly active disease at baseline. These patients represented 44% of the placebo group (29 of 66 participants) who later crossed over to tolebrutinib treatment.

At baseline, demographics in patients with highly active disease were similar to those of the overall study population, although it was slightly younger with slightly shorter disease duration, slightly less disability, and a greater likelihood of gadolinium-enhancing lesions at baseline versus the overall study population.

The proportion of patients with highly active disease was 36% in the 5-mg group, 59% in the 15-mg group, 48% in the 30-mg group, and 44% in the 60-mg group.

The study’s primary objective was to examine the dose-response relationship after 12 weeks of treatment with tolebrutinib.
 

Good safety, tolerability

After 12 weeks, the mean number of new gadolinium-enhancing lesions in patients with highly active disease was 0.82 in the 5-mg group, 0.50 in the 15-mg group, 0.38 in the 30-mg group, and 0.08 in the 60-mg group. The corresponding measurements in the overall study population were 1.39 in the 5-mg group, 0.77 in the 15-mg group, 0.76 in the 30-mg group, and 0.13 in the 60-mg group.

After 12 weeks, numbers of new or enlarging T2 lesions among patients with highly active disease were 1.09 (5 mg), 0.89 (15 mg), 0.75 (30 mg) and 0.15 (60 mg). The corresponding measurements in the overall population were 1.90 (5 mg), 1.32 (15 mg) 1.30 (30 mg) and 0.23 (60 mg).

Tolebrutinib had excellent safety and tolerability in patients with highly active disease and in the overall population, said Dr. Traboulsee.

No adverse events were linked to the study drug. One patient with highly active disease who received 60 mg of tolebrutinib had transient elevated ALT levels greater than three times the upper limit of normal. This patient also previously had elevated ALT at baseline.

One serious adverse event occurred during the study. One patient was hospitalized for MS relapse. The patient had been assigned to the 60-mg dose of tolebrutinib. The patient recovered and remained on study treatment.

Two independent studies have indicated that BTK inhibition is an effective treatment approach for relapsing remitting MS. The main advantage of tolebrutinib is its ability to penetrate the CNS.

“Most, if not all, MS therapies mostly affect the peripheral immune system, preventing autoreactive lymphocytes crossing the blood-brain barrier and causing damage,” said Dr. Traboulsee.

Therapies that enter the CNS can target abnormal immune cells, including microglia that are believed to promote disease progression. “If this is an important target, then we now have a highly CNS-penetrant drug that could potentially change the course of progression,” said Dr. Traboulsee.

Serum biomarkers and advanced imaging data collected during the phase 2 trial could help clarify the mechanisms of disease progression and the effects of tolebrutinib, he added. “Ultimately though, it is the clinical outcomes in the phase 3 programs that are essential to know where to place tolebrutinib in the future care of relapsing and progressive forms of MS.”
 

Not an unmet need

Commenting on the findings, Joseph R. Berger, MD, professor of neurology and associate chief of the MS division at the University of Pennsylvania, Philadelphia, said there are several available treatments that effectively suppress clinical and radiologic evidence of acute inflammation in relapsing remitting MS.

“Any new drug that is to be added to that pharmacological armamentarium should have distinct advantages over what is currently available. Treating relapsing remitting MS is not, in my opinion, an unmet need in MS; treating progressive disease is,” he said.

Dr. Berger said that tolebrutinib appears to be better than placebo in suppressing disease activity, particularly at higher doses. “However, the study is small – only 61 patients,” noted Dr. Berger, who was not involved in the study.

In addition, disease activity was assessed after 4 weeks with placebo and at 12 weeks with tolebrutinib treatment.

“As there is a regression to the mean with respect to disease activity, the interpretation of the apparent response to tolebrutinib needs to be tempered with that in mind,” said Dr. Berger.

Evaluating how tolebrutinib compares with other BTK inhibitors will require a head-to-head trial. “I’d be more interested in whether the drug has an effect on progressive disease,” Dr. Berger concluded.

The study was supported by Sanofi Genzyme, which is developing tolebrutinib. Dr. Traboulsee has received research grant support, honoraria for consulting, and honoraria for participating in a speakers’ bureau from Sanofi Genzyme. Dr. Berger disclosed no relevant financial relationships.

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

The investigational drug tolebrutinib effectively reduces brain lesions in patients with highly active relapsing remitting multiple sclerosis (MS), new research suggests. After 12 weeks of treatment, MRI revealed the drug, a Bruton tyrosine kinase inhibitor, was associated with a 93% reduction in new gadolinium-enhancing lesions and an 89% reduction in new and enlarging T2 lesions, compared with placebo.

The analysis supports that tolebrutinib is as effective in this group of patients with highly active relapsing remitting MS as it is in the overall patient population, study investigator said Anthony Traboulsee, MD, professor and research chair of the MS Society of Canada at the University of British Columbia, Vancouver.

“What is additionally exciting is that this effect was seen within a relatively short period of time – within 3 months. This will be important for patients and physicians to know how soon to expect a treatment to work if they have high-risk baseline features,” he added.

The findings were presented at the 2021 annual meeting of the American Academy of Neurology.
 

New drug class

BTK inhibitors are a new class of oral therapies, and phase 2 trials in patients with relapsing remitting MS show they are safe and effective. BTK inhibitors modulate B lymphocytes without causing depletion, thus reducing the risk for lymphopenia or immunoglobulin depletion.

Tolebrutinib is a covalent, irreversible BTK inhibitor that penetrates the central nervous system well. In a previous randomized, double-blind, phase 2b trial, it was well tolerated and was associated with a dose-dependent reduction in new or enlarging MRI lesions. Of the four doses studied, the 60-mg dose was the most effective.

Because highly active MS is associated with a more aggressive disease course, the investigators examined tolebrutinib’s efficacy and safety in patients with highly active disease who were participants in the phase 2b trial. This subgroup analysis had been predefined in the study’s statistical analysis plan.

The investigators defined highly active disease as one relapse in the year before screening and one or more gadolinium-enhancing lesions on MRI performed within 6 months before screening, or nine or more T2 lesions at baseline, or two or more relapses in the year before screening.

Of the 130 participants enrolled in the study, 61 (47%) met criteria for highly active disease at baseline. These patients represented 44% of the placebo group (29 of 66 participants) who later crossed over to tolebrutinib treatment.

At baseline, demographics in patients with highly active disease were similar to those of the overall study population, although it was slightly younger with slightly shorter disease duration, slightly less disability, and a greater likelihood of gadolinium-enhancing lesions at baseline versus the overall study population.

The proportion of patients with highly active disease was 36% in the 5-mg group, 59% in the 15-mg group, 48% in the 30-mg group, and 44% in the 60-mg group.

The study’s primary objective was to examine the dose-response relationship after 12 weeks of treatment with tolebrutinib.
 

Good safety, tolerability

After 12 weeks, the mean number of new gadolinium-enhancing lesions in patients with highly active disease was 0.82 in the 5-mg group, 0.50 in the 15-mg group, 0.38 in the 30-mg group, and 0.08 in the 60-mg group. The corresponding measurements in the overall study population were 1.39 in the 5-mg group, 0.77 in the 15-mg group, 0.76 in the 30-mg group, and 0.13 in the 60-mg group.

After 12 weeks, numbers of new or enlarging T2 lesions among patients with highly active disease were 1.09 (5 mg), 0.89 (15 mg), 0.75 (30 mg) and 0.15 (60 mg). The corresponding measurements in the overall population were 1.90 (5 mg), 1.32 (15 mg) 1.30 (30 mg) and 0.23 (60 mg).

Tolebrutinib had excellent safety and tolerability in patients with highly active disease and in the overall population, said Dr. Traboulsee.

No adverse events were linked to the study drug. One patient with highly active disease who received 60 mg of tolebrutinib had transient elevated ALT levels greater than three times the upper limit of normal. This patient also previously had elevated ALT at baseline.

One serious adverse event occurred during the study. One patient was hospitalized for MS relapse. The patient had been assigned to the 60-mg dose of tolebrutinib. The patient recovered and remained on study treatment.

Two independent studies have indicated that BTK inhibition is an effective treatment approach for relapsing remitting MS. The main advantage of tolebrutinib is its ability to penetrate the CNS.

“Most, if not all, MS therapies mostly affect the peripheral immune system, preventing autoreactive lymphocytes crossing the blood-brain barrier and causing damage,” said Dr. Traboulsee.

Therapies that enter the CNS can target abnormal immune cells, including microglia that are believed to promote disease progression. “If this is an important target, then we now have a highly CNS-penetrant drug that could potentially change the course of progression,” said Dr. Traboulsee.

Serum biomarkers and advanced imaging data collected during the phase 2 trial could help clarify the mechanisms of disease progression and the effects of tolebrutinib, he added. “Ultimately though, it is the clinical outcomes in the phase 3 programs that are essential to know where to place tolebrutinib in the future care of relapsing and progressive forms of MS.”
 

Not an unmet need

Commenting on the findings, Joseph R. Berger, MD, professor of neurology and associate chief of the MS division at the University of Pennsylvania, Philadelphia, said there are several available treatments that effectively suppress clinical and radiologic evidence of acute inflammation in relapsing remitting MS.

“Any new drug that is to be added to that pharmacological armamentarium should have distinct advantages over what is currently available. Treating relapsing remitting MS is not, in my opinion, an unmet need in MS; treating progressive disease is,” he said.

Dr. Berger said that tolebrutinib appears to be better than placebo in suppressing disease activity, particularly at higher doses. “However, the study is small – only 61 patients,” noted Dr. Berger, who was not involved in the study.

In addition, disease activity was assessed after 4 weeks with placebo and at 12 weeks with tolebrutinib treatment.

“As there is a regression to the mean with respect to disease activity, the interpretation of the apparent response to tolebrutinib needs to be tempered with that in mind,” said Dr. Berger.

Evaluating how tolebrutinib compares with other BTK inhibitors will require a head-to-head trial. “I’d be more interested in whether the drug has an effect on progressive disease,” Dr. Berger concluded.

The study was supported by Sanofi Genzyme, which is developing tolebrutinib. Dr. Traboulsee has received research grant support, honoraria for consulting, and honoraria for participating in a speakers’ bureau from Sanofi Genzyme. Dr. Berger disclosed no relevant financial relationships.

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

When it comes to SARS-CoV-2 infection among patients with multiple sclerosis (MS), disease-modifying therapies (DMTs) seem to have varying effects on risk of worse outcomes, according to a new analysis of an Italian cohort of patients with MS. The study confirmed that steroid exposure in the month before COVID-19 symptom onset is tied to more severe disease, and anti-CD20 therapy poses similar risks. But the researchers noted that interferon and possibly teriflunomide were associated with a protective effect in the multivariate analysis.

Maria Pia Sormani, PhD, who is a professor of biostatistics at the University of Genoa, presented the study at the 2021 annual meeting of the American Academy of Neurology.

The results confirm some previous analyses, and add to the body of evidence clinicians rely on, according to Jiwon Oh, MD, PhD, who moderated the session. “These data about the risk with the anti-CD20 therapies have been around for a while, but it seems that risk is pretty apparent, with this registry and other registries around the world. It affects counseling to patients on anti-CD20 therapies. We would counsel them to be cautious, obviously, follow public health precautions, but maybe be even more cautious. It affects our recommendations about the urgency of vaccination in these folks, how high priority they should be,” Dr. Oh said in an interview. She is the clinical director of the Barlo MS Center at St. Michael’s Unity Health in Toronto.

The analysis also hinted at complexities within demographics that might help explain some of the differing outcomes of infections. “We have learned that the course of the viral infection per se may not be the cause of severe outcomes, but the exaggerated inflammatory response to the virus is mainly responsible for intubations and deaths. The hypothesis we are investigating is whether anti-CD20 therapies can cause a more severe viral infection (that is something already known for other viral infections) but do not play a crucial role in causing the explosion of the inflammatory process,” said Dr. Sormani in an email.

The group plans to look at the risk of anti-CD20 therapies in different age groups, “to try to understand the underlying mechanism through which anti-CD20 increases the risk of more severe outcome,” she said.

Dr. Sormani presented an analysis of 3,274 patients with MS who contracted COVID-19 in Italy. The mean age was 44, the median Expanded Disability Status Scale (EDSS) score was 2, Among the study cohort, 68.6% were female; 14% had progressive MS and 26 patients died. Patients who died had a mean age of 63, 48% were female, 73% had progressive MS, and 50% were not on any DMT.

The researchers used ordinal logistic regression that “orders” outcome on a severity scale of 0 (mild disease, no pneumonia or hospitalization), 1 (pneumonia or hospitalization, n = 184), or 2 (ICU admission or death, n = 36). They calculated the odds ratio of moving from 0 to 1, or 1 to 2, and carried the assumption that the risk is the same. For example, an odds ratio of 2 for males versus females would mean that males are twice as likely to be hospitalized and twice as likely to go from being hospitalized to going to the ICU or dying.

The researchers found that older age, male sex, and comorbidities increase risk of worse COVID-19 outcomes. Exposure to methylprednisolone 1 month before COVID-19 symptom onset carried an increased risk (OR, 2.33; P = .03). Compared with no therapy, receiving interferon was associated with lower risk (OR, 0.34; P = .009) and teriflunomide trended towards an association with better outcomes (OR, 0.49; P = .054). Anti-CD20 treatment (ocrelizumab or rituximab) was linked to worse outcomes (OR, 1.89; P = .012) overall, which held up when ocrelizumab (OR, 1.71; P = .04) and rituximab (OR, 2.77; P = .03) were considered separately.

To understand why the risk of ocrelizumab might be lower, the researchers examined risk by duration of anti-CD20 treatment, and found that risk increased with increased duration of treatment, with the lowest risk at treatment duration less than 6 months (OR, 1.56; 95% CI, 0.65-3.77; not significant), followed by 6 months to 1 year (OR, 1.68; 95% CI, 0.69-4.03; P < .001), 1-2 years (OR, 1.74; 95% CI, 0.83-3.64; trend), and the highest risk at more than 2 years (OR, 2.75; 95% CI, 1.28-5.88).

Dr. Sormani suggested that the greater risk associated with rituximab may be because of a tendency towards longer treatment length, since patients treated with rituximab were more often treated for greater lengths of time; 11% had been treated for 6 months or less (vs. 24% of ocrelizumab patients); 26%, 6-12 months (vs. 18% ocrelizumab); 19%, 1-2 years (vs. 37% ocrelizumab); and 44%, 2 years or longer (vs. 21% ocrelizumab).

Dr. Sormani has received consulting fees from Biogen, GeNeuro, Genzyme, MedDay, Merck KGaA, Novartis, Roche, and Immunic. The platform for data collection was donated by Merck. Dr. Oh has consulted for Roche, Celgene, Biogen-Idec, EMD-Serono, Sanofi-Genzyme, Novartis, Alexion. She has been on a scientific advisory or data safety monitoring board for Roche, Biogen-Idec, and Sanofi-Genzyme.

When it comes to SARS-CoV-2 infection among patients with multiple sclerosis (MS), disease-modifying therapies (DMTs) seem to have varying effects on risk of worse outcomes, according to a new analysis of an Italian cohort of patients with MS. The study confirmed that steroid exposure in the month before COVID-19 symptom onset is tied to more severe disease, and anti-CD20 therapy poses similar risks. But the researchers noted that interferon and possibly teriflunomide were associated with a protective effect in the multivariate analysis.

Maria Pia Sormani, PhD, who is a professor of biostatistics at the University of Genoa, presented the study at the 2021 annual meeting of the American Academy of Neurology.

The results confirm some previous analyses, and add to the body of evidence clinicians rely on, according to Jiwon Oh, MD, PhD, who moderated the session. “These data about the risk with the anti-CD20 therapies have been around for a while, but it seems that risk is pretty apparent, with this registry and other registries around the world. It affects counseling to patients on anti-CD20 therapies. We would counsel them to be cautious, obviously, follow public health precautions, but maybe be even more cautious. It affects our recommendations about the urgency of vaccination in these folks, how high priority they should be,” Dr. Oh said in an interview. She is the clinical director of the Barlo MS Center at St. Michael’s Unity Health in Toronto.

The analysis also hinted at complexities within demographics that might help explain some of the differing outcomes of infections. “We have learned that the course of the viral infection per se may not be the cause of severe outcomes, but the exaggerated inflammatory response to the virus is mainly responsible for intubations and deaths. The hypothesis we are investigating is whether anti-CD20 therapies can cause a more severe viral infection (that is something already known for other viral infections) but do not play a crucial role in causing the explosion of the inflammatory process,” said Dr. Sormani in an email.

The group plans to look at the risk of anti-CD20 therapies in different age groups, “to try to understand the underlying mechanism through which anti-CD20 increases the risk of more severe outcome,” she said.

Dr. Sormani presented an analysis of 3,274 patients with MS who contracted COVID-19 in Italy. The mean age was 44, the median Expanded Disability Status Scale (EDSS) score was 2, Among the study cohort, 68.6% were female; 14% had progressive MS and 26 patients died. Patients who died had a mean age of 63, 48% were female, 73% had progressive MS, and 50% were not on any DMT.

The researchers used ordinal logistic regression that “orders” outcome on a severity scale of 0 (mild disease, no pneumonia or hospitalization), 1 (pneumonia or hospitalization, n = 184), or 2 (ICU admission or death, n = 36). They calculated the odds ratio of moving from 0 to 1, or 1 to 2, and carried the assumption that the risk is the same. For example, an odds ratio of 2 for males versus females would mean that males are twice as likely to be hospitalized and twice as likely to go from being hospitalized to going to the ICU or dying.

The researchers found that older age, male sex, and comorbidities increase risk of worse COVID-19 outcomes. Exposure to methylprednisolone 1 month before COVID-19 symptom onset carried an increased risk (OR, 2.33; P = .03). Compared with no therapy, receiving interferon was associated with lower risk (OR, 0.34; P = .009) and teriflunomide trended towards an association with better outcomes (OR, 0.49; P = .054). Anti-CD20 treatment (ocrelizumab or rituximab) was linked to worse outcomes (OR, 1.89; P = .012) overall, which held up when ocrelizumab (OR, 1.71; P = .04) and rituximab (OR, 2.77; P = .03) were considered separately.

To understand why the risk of ocrelizumab might be lower, the researchers examined risk by duration of anti-CD20 treatment, and found that risk increased with increased duration of treatment, with the lowest risk at treatment duration less than 6 months (OR, 1.56; 95% CI, 0.65-3.77; not significant), followed by 6 months to 1 year (OR, 1.68; 95% CI, 0.69-4.03; P < .001), 1-2 years (OR, 1.74; 95% CI, 0.83-3.64; trend), and the highest risk at more than 2 years (OR, 2.75; 95% CI, 1.28-5.88).

Dr. Sormani suggested that the greater risk associated with rituximab may be because of a tendency towards longer treatment length, since patients treated with rituximab were more often treated for greater lengths of time; 11% had been treated for 6 months or less (vs. 24% of ocrelizumab patients); 26%, 6-12 months (vs. 18% ocrelizumab); 19%, 1-2 years (vs. 37% ocrelizumab); and 44%, 2 years or longer (vs. 21% ocrelizumab).

Dr. Sormani has received consulting fees from Biogen, GeNeuro, Genzyme, MedDay, Merck KGaA, Novartis, Roche, and Immunic. The platform for data collection was donated by Merck. Dr. Oh has consulted for Roche, Celgene, Biogen-Idec, EMD-Serono, Sanofi-Genzyme, Novartis, Alexion. She has been on a scientific advisory or data safety monitoring board for Roche, Biogen-Idec, and Sanofi-Genzyme.

When it comes to SARS-CoV-2 infection among patients with multiple sclerosis (MS), disease-modifying therapies (DMTs) seem to have varying effects on risk of worse outcomes, according to a new analysis of an Italian cohort of patients with MS. The study confirmed that steroid exposure in the month before COVID-19 symptom onset is tied to more severe disease, and anti-CD20 therapy poses similar risks. But the researchers noted that interferon and possibly teriflunomide were associated with a protective effect in the multivariate analysis.

Maria Pia Sormani, PhD, who is a professor of biostatistics at the University of Genoa, presented the study at the 2021 annual meeting of the American Academy of Neurology.

The results confirm some previous analyses, and add to the body of evidence clinicians rely on, according to Jiwon Oh, MD, PhD, who moderated the session. “These data about the risk with the anti-CD20 therapies have been around for a while, but it seems that risk is pretty apparent, with this registry and other registries around the world. It affects counseling to patients on anti-CD20 therapies. We would counsel them to be cautious, obviously, follow public health precautions, but maybe be even more cautious. It affects our recommendations about the urgency of vaccination in these folks, how high priority they should be,” Dr. Oh said in an interview. She is the clinical director of the Barlo MS Center at St. Michael’s Unity Health in Toronto.

The analysis also hinted at complexities within demographics that might help explain some of the differing outcomes of infections. “We have learned that the course of the viral infection per se may not be the cause of severe outcomes, but the exaggerated inflammatory response to the virus is mainly responsible for intubations and deaths. The hypothesis we are investigating is whether anti-CD20 therapies can cause a more severe viral infection (that is something already known for other viral infections) but do not play a crucial role in causing the explosion of the inflammatory process,” said Dr. Sormani in an email.

The group plans to look at the risk of anti-CD20 therapies in different age groups, “to try to understand the underlying mechanism through which anti-CD20 increases the risk of more severe outcome,” she said.

Dr. Sormani presented an analysis of 3,274 patients with MS who contracted COVID-19 in Italy. The mean age was 44, the median Expanded Disability Status Scale (EDSS) score was 2, Among the study cohort, 68.6% were female; 14% had progressive MS and 26 patients died. Patients who died had a mean age of 63, 48% were female, 73% had progressive MS, and 50% were not on any DMT.

The researchers used ordinal logistic regression that “orders” outcome on a severity scale of 0 (mild disease, no pneumonia or hospitalization), 1 (pneumonia or hospitalization, n = 184), or 2 (ICU admission or death, n = 36). They calculated the odds ratio of moving from 0 to 1, or 1 to 2, and carried the assumption that the risk is the same. For example, an odds ratio of 2 for males versus females would mean that males are twice as likely to be hospitalized and twice as likely to go from being hospitalized to going to the ICU or dying.

The researchers found that older age, male sex, and comorbidities increase risk of worse COVID-19 outcomes. Exposure to methylprednisolone 1 month before COVID-19 symptom onset carried an increased risk (OR, 2.33; P = .03). Compared with no therapy, receiving interferon was associated with lower risk (OR, 0.34; P = .009) and teriflunomide trended towards an association with better outcomes (OR, 0.49; P = .054). Anti-CD20 treatment (ocrelizumab or rituximab) was linked to worse outcomes (OR, 1.89; P = .012) overall, which held up when ocrelizumab (OR, 1.71; P = .04) and rituximab (OR, 2.77; P = .03) were considered separately.

To understand why the risk of ocrelizumab might be lower, the researchers examined risk by duration of anti-CD20 treatment, and found that risk increased with increased duration of treatment, with the lowest risk at treatment duration less than 6 months (OR, 1.56; 95% CI, 0.65-3.77; not significant), followed by 6 months to 1 year (OR, 1.68; 95% CI, 0.69-4.03; P < .001), 1-2 years (OR, 1.74; 95% CI, 0.83-3.64; trend), and the highest risk at more than 2 years (OR, 2.75; 95% CI, 1.28-5.88).

Dr. Sormani suggested that the greater risk associated with rituximab may be because of a tendency towards longer treatment length, since patients treated with rituximab were more often treated for greater lengths of time; 11% had been treated for 6 months or less (vs. 24% of ocrelizumab patients); 26%, 6-12 months (vs. 18% ocrelizumab); 19%, 1-2 years (vs. 37% ocrelizumab); and 44%, 2 years or longer (vs. 21% ocrelizumab).

Dr. Sormani has received consulting fees from Biogen, GeNeuro, Genzyme, MedDay, Merck KGaA, Novartis, Roche, and Immunic. The platform for data collection was donated by Merck. Dr. Oh has consulted for Roche, Celgene, Biogen-Idec, EMD-Serono, Sanofi-Genzyme, Novartis, Alexion. She has been on a scientific advisory or data safety monitoring board for Roche, Biogen-Idec, and Sanofi-Genzyme.

Oral evobrutinib, an investigational highly selective Bruton’s tyrosine kinase inhibitor, may have a beneficial effect on reducing nerve damage in multiple sclerosis (MS), based on how it’s been found to lower levels of a key blood biomarker, according to a post hoc analysis of a placebo-controlled clinical trial reported at the American Academy of Neurology’s 2021 annual meeting.

Jens Kuhle, MD, of the department of biomedicine at University Hospital Basel, Switzerland, said the conclusion was based on reductions in blood levels of neurofilament light chain (NfL), a biomarker of neuroaxonal damage, in treated patients. “These data on the effect of evobrutinib on NfL dynamics are the first to be reported for a BTK inhibitor investigated for MS,” Dr. Kuhle said. Evobrutinib targets beta cells and myeloid cells, including macrophages and microglia, to disrupt NfL production.

The analysis consisted of three treatment arms in addition to the placebo arm: 25 and 75 mg daily, and 75 mg twice daily. The post hoc analysis included 166 patients across all arms, with 148 being evaluated at week 24.

Dr. Kuhle said the 75-mg twice-daily group exhibited significantly lower blood NfL levels as early as week 12 with lowered levels maintained to week 24, the last time point the study evaluated – specifically reductions of 18.9% (P = .01) and 16.8% (P = .040) compared with placebo, respectively.

However, the 75-mg once daily dose also showed meaningful reductions when compared with placebo: 15.4% (P = .043) and 14.1% (P = .10) at 12 and 24 weeks, respectively, Dr. Kuhle said. “There were no significant differences seen with the 25-mg once-daily group,” he said.

“These results are promising and indicate evobrutinib at an efficacious dose of 75 mg twice daily has a beneficial effect on reducing neuroaxonal damage in MS,” he said.

In an interview, Dr. Kuhle explained the importance of lower NfL levels. “The hope is that detecting subclinical disease activity in a sensitive and comprehensive way will lead to more effective treatment of the individual MS patient,” he said.

The findings may also inform future studies of evobrutinib in MS, he said. “Neurofilaments and neurons are the key substrate of permanent disability in MS and other neurodegenerative diseases,” Dr. Kuhle said. “It is anticipated that normalization of NfL to levels in same-age healthy controls should be the adequate treatment target for individual patients.”

NfL could be an “easily accessible and modifiable biomarker” for use in clinical trials of relapsing and progressive MS, he said. The researchers plan to use NfL measurements in the extension phase of the trial.

“An important next step is the development of reliable and age-adjusted reference values for NfL measurements in blood to move this biomarker further toward individual application in clinical practice,” he added, noting that his group has already collected more than 10,000 serum samples from more than 5,000 healthy controls to do that.

The analysis adds to the growing body of evidence supporting the use of blood NfL levels to gauge the effectiveness of disease-modifying therapies on neuroaxonal degeneration in MS, said Fredrik Piehl, MD, PhD, a professor at Karolinska University Hospital in Stockholm.

Oral evobrutinib, an investigational highly selective Bruton’s tyrosine kinase inhibitor, may have a beneficial effect on reducing nerve damage in multiple sclerosis (MS), based on how it’s been found to lower levels of a key blood biomarker, according to a post hoc analysis of a placebo-controlled clinical trial reported at the American Academy of Neurology’s 2021 annual meeting.

Jens Kuhle, MD, of the department of biomedicine at University Hospital Basel, Switzerland, said the conclusion was based on reductions in blood levels of neurofilament light chain (NfL), a biomarker of neuroaxonal damage, in treated patients. “These data on the effect of evobrutinib on NfL dynamics are the first to be reported for a BTK inhibitor investigated for MS,” Dr. Kuhle said. Evobrutinib targets beta cells and myeloid cells, including macrophages and microglia, to disrupt NfL production.

The analysis consisted of three treatment arms in addition to the placebo arm: 25 and 75 mg daily, and 75 mg twice daily. The post hoc analysis included 166 patients across all arms, with 148 being evaluated at week 24.

Dr. Kuhle said the 75-mg twice-daily group exhibited significantly lower blood NfL levels as early as week 12 with lowered levels maintained to week 24, the last time point the study evaluated – specifically reductions of 18.9% (P = .01) and 16.8% (P = .040) compared with placebo, respectively.

However, the 75-mg once daily dose also showed meaningful reductions when compared with placebo: 15.4% (P = .043) and 14.1% (P = .10) at 12 and 24 weeks, respectively, Dr. Kuhle said. “There were no significant differences seen with the 25-mg once-daily group,” he said.

“These results are promising and indicate evobrutinib at an efficacious dose of 75 mg twice daily has a beneficial effect on reducing neuroaxonal damage in MS,” he said.

In an interview, Dr. Kuhle explained the importance of lower NfL levels. “The hope is that detecting subclinical disease activity in a sensitive and comprehensive way will lead to more effective treatment of the individual MS patient,” he said.

The findings may also inform future studies of evobrutinib in MS, he said. “Neurofilaments and neurons are the key substrate of permanent disability in MS and other neurodegenerative diseases,” Dr. Kuhle said. “It is anticipated that normalization of NfL to levels in same-age healthy controls should be the adequate treatment target for individual patients.”

NfL could be an “easily accessible and modifiable biomarker” for use in clinical trials of relapsing and progressive MS, he said. The researchers plan to use NfL measurements in the extension phase of the trial.

“An important next step is the development of reliable and age-adjusted reference values for NfL measurements in blood to move this biomarker further toward individual application in clinical practice,” he added, noting that his group has already collected more than 10,000 serum samples from more than 5,000 healthy controls to do that.

The analysis adds to the growing body of evidence supporting the use of blood NfL levels to gauge the effectiveness of disease-modifying therapies on neuroaxonal degeneration in MS, said Fredrik Piehl, MD, PhD, a professor at Karolinska University Hospital in Stockholm.

Oral evobrutinib, an investigational highly selective Bruton’s tyrosine kinase inhibitor, may have a beneficial effect on reducing nerve damage in multiple sclerosis (MS), based on how it’s been found to lower levels of a key blood biomarker, according to a post hoc analysis of a placebo-controlled clinical trial reported at the American Academy of Neurology’s 2021 annual meeting.

Jens Kuhle, MD, of the department of biomedicine at University Hospital Basel, Switzerland, said the conclusion was based on reductions in blood levels of neurofilament light chain (NfL), a biomarker of neuroaxonal damage, in treated patients. “These data on the effect of evobrutinib on NfL dynamics are the first to be reported for a BTK inhibitor investigated for MS,” Dr. Kuhle said. Evobrutinib targets beta cells and myeloid cells, including macrophages and microglia, to disrupt NfL production.

The analysis consisted of three treatment arms in addition to the placebo arm: 25 and 75 mg daily, and 75 mg twice daily. The post hoc analysis included 166 patients across all arms, with 148 being evaluated at week 24.

Dr. Kuhle said the 75-mg twice-daily group exhibited significantly lower blood NfL levels as early as week 12 with lowered levels maintained to week 24, the last time point the study evaluated – specifically reductions of 18.9% (P = .01) and 16.8% (P = .040) compared with placebo, respectively.

However, the 75-mg once daily dose also showed meaningful reductions when compared with placebo: 15.4% (P = .043) and 14.1% (P = .10) at 12 and 24 weeks, respectively, Dr. Kuhle said. “There were no significant differences seen with the 25-mg once-daily group,” he said.

“These results are promising and indicate evobrutinib at an efficacious dose of 75 mg twice daily has a beneficial effect on reducing neuroaxonal damage in MS,” he said.

In an interview, Dr. Kuhle explained the importance of lower NfL levels. “The hope is that detecting subclinical disease activity in a sensitive and comprehensive way will lead to more effective treatment of the individual MS patient,” he said.

The findings may also inform future studies of evobrutinib in MS, he said. “Neurofilaments and neurons are the key substrate of permanent disability in MS and other neurodegenerative diseases,” Dr. Kuhle said. “It is anticipated that normalization of NfL to levels in same-age healthy controls should be the adequate treatment target for individual patients.”

NfL could be an “easily accessible and modifiable biomarker” for use in clinical trials of relapsing and progressive MS, he said. The researchers plan to use NfL measurements in the extension phase of the trial.

“An important next step is the development of reliable and age-adjusted reference values for NfL measurements in blood to move this biomarker further toward individual application in clinical practice,” he added, noting that his group has already collected more than 10,000 serum samples from more than 5,000 healthy controls to do that.

The analysis adds to the growing body of evidence supporting the use of blood NfL levels to gauge the effectiveness of disease-modifying therapies on neuroaxonal degeneration in MS, said Fredrik Piehl, MD, PhD, a professor at Karolinska University Hospital in Stockholm.

Black patients with multiple sclerosis (MS) or neuromyelitis optica spectrum disorder (NMOSD) may respond differently to common MS treatment compared to their White peers, new research suggests. In a study of almost 200 patients, Black participants with MS or NMOSD showed significantly more rapid B-cell repopulation 6-12 months after receiving anti-CD20 infusion therapy with rituximab or ocrelizumab (Rituxan, Ocrevus, Genentech) than did White participants.

“The results showed that this B-cell targeted therapy wore off more quickly in African Americans,” said study coinvestigator Gregg J. Silverman, MD, a professor at New York University.

He said that, although the study was more observational in design, “over time when people come back to the clinic, it gives you an idea of whether the agent is still working in their bodies.”

Overall, “our findings raise the question of whether the same therapy dose may be equally effective for all people,” coinvestigator Ilya Kister, MD, also from NYU, added in a press release.

Dr. Kister noted that this could have implications for the way Black patients with autoimmune diseases are treated in the future.

The findings were released ahead of the study’s scheduled presentation at the annual meeting of the American Academy of Neurology.
 

More severe disease in Black patients

Anti-CD20 infusion therapy, or B-cell depletion therapy, is commonly used to treat autoimmune diseases, including MS and NMOSD. “While previous research has shown that this type of infusion therapy is effective for people with these diseases, we also know that Black people tend to have more severe courses of MS,” Dr. Kister said.

“We wanted to compare how quickly the B cells came back in Black people and White people after treatment,” he added.

Dr. Silverman noted that he has been “studying this agent in autoimmune disease for many years. And from all the different studies, I don’t think we had the right population to ask this question. Demographics were just reviewed as they were.”

The current study included 168 participants (mean age, 44 years; 71% women) who had a diagnosis of MS (n = 134) or NMOSD (n = 32) or who were considered to have MS or NMOSD (n = 2). In addition, 36% of the participants self-identified as Black or African American, 36% self-identified as White, and 28% self-identified as another race.

Flow cytometry results were available for all patients after undergoing anti-CD20 infusions at the NYU MS Care Center. Cluster analyses were conducted on the following B-cell subsets: CD19, CD20, IgD, and CD27. “B-cell repopulation was defined as any detectable number of CD19+ cells on flow cytometry,” the investigators reported.
 

Clinical implications?

Results showed that 29.8% of the full study group showed B-cell repopulation a mean of 6.8 months after infusion. In those with B-cell repopulation, 80.3% had IgD+/CD27– subsets, 11.6% had IgD–/CD27+, 6.2% had IgD–/CD27–, and 1.8% had IgD+/CD27+. These B-cell subset ratios did not differ significantly between the Black and White participants.

Interestingly, no patients showed B-cell repopulation before 4 months after infusion. From 4 to 6 months after infusion, there were no significant differences between the Black and White participants in terms of frequency of B-cell repopulation (20.8% vs. 17.9%, respectively; P = .79).

However, repopulation was significantly more frequent in the Black patients 6-12 months after infusion (76.2% vs. 33.3%; P = .02).

Overall, the findings “may have implications for clinical management of MS/NMOSD” in Black individuals, the investigators wrote.

“I was impressed by the differences we saw in responses of patients that were self-declaring as African Americans versus those who were Whites,” Dr. Silverman said. However, “as we say in science: it gives us an answer but it raises even more questions, which may well be important for helping us understand how the agent works and how the disease affects different people.”

Still, Dr. Silverman noted that the findings give clinicians using the agent “a signal that they should be very vigilant. It was an observation at one center, but we’re asking our colleagues [at other clinics] to think about being more careful as they review data with their patients.”

He added that future multicenter studies will allow these issues to be assessed more comprehensively. “This was a discovery study; it now needs validation; and maybe the next step would be looking into the mechanism.”

Dr. Silverman pointed out that the Food and Drug Administration–approved label for this type of therapy “allows for somewhat more frequent dosing. So that might be indicated if it’s found that it’s wearing off in an individual. Perhaps they should be treated more frequently?”

“At a minimum, this has raised our vigilance – and we’re interested to see what the feedback will be at the [AAN] meeting,” he added.
 

Real-world data

Commenting on the findings, Eric Klawiter, MD, associate professor of neurology at Harvard Medical School and director of the Multiple Sclerosis and NMO unit at Massachusetts General Hospital, both in Boston, noted that an important study factor was the focus on repopulation to identify specific groups “who may be early repopulators” as it relates to disease activity and disability progression in MS.

“I thought this was a nicely designed study that made good use of real-world data in MS and NMOSD,” added Dr. Klawiter, who was not involved with the research. He pointed out that timing was another interesting aspect of the study. “As we typically use these cell-depleting agents on an ‘every-6-month’ basis, the most pertinent time frame surrounds those that repopulate prior to 6 months.”

If the current study would have shown differences between the Black and White participants at that time point, “I think that would have been most pertinent from a clinical standpoint and a greater opportunity for intervention,” Dr. Klawiter said. “But we saw that, before 4 and 6 months, [the difference] wasn’t significant.”

Still, “after 6 months, the study demonstrates that Black people with MS and NMOSD may repopulate faster,” he added.

“The only real change a clinician could make would be to modify the frequency of the dosing. So if we can identify certain characteristics that would lead you to want to evaluate for the need of redosing sooner, I think that would be useful,” he said.

Specific characteristics identified in previous research include body mass index. “If there are also ethnicity factors, that would be an additional demographic factor that a clinician should pay close attention to,” said Dr. Klawiter.

He noted that his current practice is to check flow cytometry and B-cell counts at the time of a patient’s next infusion. “And if I’m seeing that B-cell levels are repleting at that time point, I am already then making adjustments with their next infusion as to the dosing frequency,” he added.

“This [study] may elucidate some of the potential reasons why we see some people replete their B cells faster than others, but I think additional studies are necessary to make that determination,” Dr. Klawiter concluded.

Genentech provided funding for the study. Dr. Silverman reported no relevant financial relationships. Dr. Klawiter reported having received research funds and consulting fees from Genentech.

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

Black patients with multiple sclerosis (MS) or neuromyelitis optica spectrum disorder (NMOSD) may respond differently to common MS treatment compared to their White peers, new research suggests. In a study of almost 200 patients, Black participants with MS or NMOSD showed significantly more rapid B-cell repopulation 6-12 months after receiving anti-CD20 infusion therapy with rituximab or ocrelizumab (Rituxan, Ocrevus, Genentech) than did White participants.

“The results showed that this B-cell targeted therapy wore off more quickly in African Americans,” said study coinvestigator Gregg J. Silverman, MD, a professor at New York University.

He said that, although the study was more observational in design, “over time when people come back to the clinic, it gives you an idea of whether the agent is still working in their bodies.”

Overall, “our findings raise the question of whether the same therapy dose may be equally effective for all people,” coinvestigator Ilya Kister, MD, also from NYU, added in a press release.

Dr. Kister noted that this could have implications for the way Black patients with autoimmune diseases are treated in the future.

The findings were released ahead of the study’s scheduled presentation at the annual meeting of the American Academy of Neurology.
 

More severe disease in Black patients

Anti-CD20 infusion therapy, or B-cell depletion therapy, is commonly used to treat autoimmune diseases, including MS and NMOSD. “While previous research has shown that this type of infusion therapy is effective for people with these diseases, we also know that Black people tend to have more severe courses of MS,” Dr. Kister said.

“We wanted to compare how quickly the B cells came back in Black people and White people after treatment,” he added.

Dr. Silverman noted that he has been “studying this agent in autoimmune disease for many years. And from all the different studies, I don’t think we had the right population to ask this question. Demographics were just reviewed as they were.”

The current study included 168 participants (mean age, 44 years; 71% women) who had a diagnosis of MS (n = 134) or NMOSD (n = 32) or who were considered to have MS or NMOSD (n = 2). In addition, 36% of the participants self-identified as Black or African American, 36% self-identified as White, and 28% self-identified as another race.

Flow cytometry results were available for all patients after undergoing anti-CD20 infusions at the NYU MS Care Center. Cluster analyses were conducted on the following B-cell subsets: CD19, CD20, IgD, and CD27. “B-cell repopulation was defined as any detectable number of CD19+ cells on flow cytometry,” the investigators reported.
 

Clinical implications?

Results showed that 29.8% of the full study group showed B-cell repopulation a mean of 6.8 months after infusion. In those with B-cell repopulation, 80.3% had IgD+/CD27– subsets, 11.6% had IgD–/CD27+, 6.2% had IgD–/CD27–, and 1.8% had IgD+/CD27+. These B-cell subset ratios did not differ significantly between the Black and White participants.

Interestingly, no patients showed B-cell repopulation before 4 months after infusion. From 4 to 6 months after infusion, there were no significant differences between the Black and White participants in terms of frequency of B-cell repopulation (20.8% vs. 17.9%, respectively; P = .79).

However, repopulation was significantly more frequent in the Black patients 6-12 months after infusion (76.2% vs. 33.3%; P = .02).

Overall, the findings “may have implications for clinical management of MS/NMOSD” in Black individuals, the investigators wrote.

“I was impressed by the differences we saw in responses of patients that were self-declaring as African Americans versus those who were Whites,” Dr. Silverman said. However, “as we say in science: it gives us an answer but it raises even more questions, which may well be important for helping us understand how the agent works and how the disease affects different people.”

Still, Dr. Silverman noted that the findings give clinicians using the agent “a signal that they should be very vigilant. It was an observation at one center, but we’re asking our colleagues [at other clinics] to think about being more careful as they review data with their patients.”

He added that future multicenter studies will allow these issues to be assessed more comprehensively. “This was a discovery study; it now needs validation; and maybe the next step would be looking into the mechanism.”

Dr. Silverman pointed out that the Food and Drug Administration–approved label for this type of therapy “allows for somewhat more frequent dosing. So that might be indicated if it’s found that it’s wearing off in an individual. Perhaps they should be treated more frequently?”

“At a minimum, this has raised our vigilance – and we’re interested to see what the feedback will be at the [AAN] meeting,” he added.
 

Real-world data

Commenting on the findings, Eric Klawiter, MD, associate professor of neurology at Harvard Medical School and director of the Multiple Sclerosis and NMO unit at Massachusetts General Hospital, both in Boston, noted that an important study factor was the focus on repopulation to identify specific groups “who may be early repopulators” as it relates to disease activity and disability progression in MS.

“I thought this was a nicely designed study that made good use of real-world data in MS and NMOSD,” added Dr. Klawiter, who was not involved with the research. He pointed out that timing was another interesting aspect of the study. “As we typically use these cell-depleting agents on an ‘every-6-month’ basis, the most pertinent time frame surrounds those that repopulate prior to 6 months.”

If the current study would have shown differences between the Black and White participants at that time point, “I think that would have been most pertinent from a clinical standpoint and a greater opportunity for intervention,” Dr. Klawiter said. “But we saw that, before 4 and 6 months, [the difference] wasn’t significant.”

Still, “after 6 months, the study demonstrates that Black people with MS and NMOSD may repopulate faster,” he added.

“The only real change a clinician could make would be to modify the frequency of the dosing. So if we can identify certain characteristics that would lead you to want to evaluate for the need of redosing sooner, I think that would be useful,” he said.

Specific characteristics identified in previous research include body mass index. “If there are also ethnicity factors, that would be an additional demographic factor that a clinician should pay close attention to,” said Dr. Klawiter.

He noted that his current practice is to check flow cytometry and B-cell counts at the time of a patient’s next infusion. “And if I’m seeing that B-cell levels are repleting at that time point, I am already then making adjustments with their next infusion as to the dosing frequency,” he added.

“This [study] may elucidate some of the potential reasons why we see some people replete their B cells faster than others, but I think additional studies are necessary to make that determination,” Dr. Klawiter concluded.

Genentech provided funding for the study. Dr. Silverman reported no relevant financial relationships. Dr. Klawiter reported having received research funds and consulting fees from Genentech.

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

Black patients with multiple sclerosis (MS) or neuromyelitis optica spectrum disorder (NMOSD) may respond differently to common MS treatment compared to their White peers, new research suggests. In a study of almost 200 patients, Black participants with MS or NMOSD showed significantly more rapid B-cell repopulation 6-12 months after receiving anti-CD20 infusion therapy with rituximab or ocrelizumab (Rituxan, Ocrevus, Genentech) than did White participants.

“The results showed that this B-cell targeted therapy wore off more quickly in African Americans,” said study coinvestigator Gregg J. Silverman, MD, a professor at New York University.

He said that, although the study was more observational in design, “over time when people come back to the clinic, it gives you an idea of whether the agent is still working in their bodies.”

Overall, “our findings raise the question of whether the same therapy dose may be equally effective for all people,” coinvestigator Ilya Kister, MD, also from NYU, added in a press release.

Dr. Kister noted that this could have implications for the way Black patients with autoimmune diseases are treated in the future.

The findings were released ahead of the study’s scheduled presentation at the annual meeting of the American Academy of Neurology.
 

More severe disease in Black patients

Anti-CD20 infusion therapy, or B-cell depletion therapy, is commonly used to treat autoimmune diseases, including MS and NMOSD. “While previous research has shown that this type of infusion therapy is effective for people with these diseases, we also know that Black people tend to have more severe courses of MS,” Dr. Kister said.

“We wanted to compare how quickly the B cells came back in Black people and White people after treatment,” he added.

Dr. Silverman noted that he has been “studying this agent in autoimmune disease for many years. And from all the different studies, I don’t think we had the right population to ask this question. Demographics were just reviewed as they were.”

The current study included 168 participants (mean age, 44 years; 71% women) who had a diagnosis of MS (n = 134) or NMOSD (n = 32) or who were considered to have MS or NMOSD (n = 2). In addition, 36% of the participants self-identified as Black or African American, 36% self-identified as White, and 28% self-identified as another race.

Flow cytometry results were available for all patients after undergoing anti-CD20 infusions at the NYU MS Care Center. Cluster analyses were conducted on the following B-cell subsets: CD19, CD20, IgD, and CD27. “B-cell repopulation was defined as any detectable number of CD19+ cells on flow cytometry,” the investigators reported.
 

Clinical implications?

Results showed that 29.8% of the full study group showed B-cell repopulation a mean of 6.8 months after infusion. In those with B-cell repopulation, 80.3% had IgD+/CD27– subsets, 11.6% had IgD–/CD27+, 6.2% had IgD–/CD27–, and 1.8% had IgD+/CD27+. These B-cell subset ratios did not differ significantly between the Black and White participants.

Interestingly, no patients showed B-cell repopulation before 4 months after infusion. From 4 to 6 months after infusion, there were no significant differences between the Black and White participants in terms of frequency of B-cell repopulation (20.8% vs. 17.9%, respectively; P = .79).

However, repopulation was significantly more frequent in the Black patients 6-12 months after infusion (76.2% vs. 33.3%; P = .02).

Overall, the findings “may have implications for clinical management of MS/NMOSD” in Black individuals, the investigators wrote.

“I was impressed by the differences we saw in responses of patients that were self-declaring as African Americans versus those who were Whites,” Dr. Silverman said. However, “as we say in science: it gives us an answer but it raises even more questions, which may well be important for helping us understand how the agent works and how the disease affects different people.”

Still, Dr. Silverman noted that the findings give clinicians using the agent “a signal that they should be very vigilant. It was an observation at one center, but we’re asking our colleagues [at other clinics] to think about being more careful as they review data with their patients.”

He added that future multicenter studies will allow these issues to be assessed more comprehensively. “This was a discovery study; it now needs validation; and maybe the next step would be looking into the mechanism.”

Dr. Silverman pointed out that the Food and Drug Administration–approved label for this type of therapy “allows for somewhat more frequent dosing. So that might be indicated if it’s found that it’s wearing off in an individual. Perhaps they should be treated more frequently?”

“At a minimum, this has raised our vigilance – and we’re interested to see what the feedback will be at the [AAN] meeting,” he added.
 

Real-world data

Commenting on the findings, Eric Klawiter, MD, associate professor of neurology at Harvard Medical School and director of the Multiple Sclerosis and NMO unit at Massachusetts General Hospital, both in Boston, noted that an important study factor was the focus on repopulation to identify specific groups “who may be early repopulators” as it relates to disease activity and disability progression in MS.

“I thought this was a nicely designed study that made good use of real-world data in MS and NMOSD,” added Dr. Klawiter, who was not involved with the research. He pointed out that timing was another interesting aspect of the study. “As we typically use these cell-depleting agents on an ‘every-6-month’ basis, the most pertinent time frame surrounds those that repopulate prior to 6 months.”

If the current study would have shown differences between the Black and White participants at that time point, “I think that would have been most pertinent from a clinical standpoint and a greater opportunity for intervention,” Dr. Klawiter said. “But we saw that, before 4 and 6 months, [the difference] wasn’t significant.”

Still, “after 6 months, the study demonstrates that Black people with MS and NMOSD may repopulate faster,” he added.

“The only real change a clinician could make would be to modify the frequency of the dosing. So if we can identify certain characteristics that would lead you to want to evaluate for the need of redosing sooner, I think that would be useful,” he said.

Specific characteristics identified in previous research include body mass index. “If there are also ethnicity factors, that would be an additional demographic factor that a clinician should pay close attention to,” said Dr. Klawiter.

He noted that his current practice is to check flow cytometry and B-cell counts at the time of a patient’s next infusion. “And if I’m seeing that B-cell levels are repleting at that time point, I am already then making adjustments with their next infusion as to the dosing frequency,” he added.

“This [study] may elucidate some of the potential reasons why we see some people replete their B cells faster than others, but I think additional studies are necessary to make that determination,” Dr. Klawiter concluded.

Genentech provided funding for the study. Dr. Silverman reported no relevant financial relationships. Dr. Klawiter reported having received research funds and consulting fees from Genentech.

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

Read the supplement here or by clicking on the image

Elevations in serum neurofilament light chain levels in people with multiple sclerosis (MS) are significantly linked to worse neurologic function, clinical disability, and lower brain volumes, according to new findings from a large, diverse population of patients with MS. “This is one of the largest studies to evaluate serum neurofilament light chain levels in people with MS,” said lead author Elias S. Sotirchos, MD, an assistant professor of neurology at Johns Hopkins University, Baltimore. “An important strength of this cohort is that it is a realworld cohort of patients followed in U.S. and European MS centers,” he said. “The study captures the diversity of the MS population, including demographics, comorbidities, lifestyle factors, and clinical characteristics that may otherwise not be captured in a clinical trial population.” The research was presented at the 2021 ACTRIMS Forum.

Read the supplement here or by clicking on the image

Elevations in serum neurofilament light chain levels in people with multiple sclerosis (MS) are significantly linked to worse neurologic function, clinical disability, and lower brain volumes, according to new findings from a large, diverse population of patients with MS. “This is one of the largest studies to evaluate serum neurofilament light chain levels in people with MS,” said lead author Elias S. Sotirchos, MD, an assistant professor of neurology at Johns Hopkins University, Baltimore. “An important strength of this cohort is that it is a realworld cohort of patients followed in U.S. and European MS centers,” he said. “The study captures the diversity of the MS population, including demographics, comorbidities, lifestyle factors, and clinical characteristics that may otherwise not be captured in a clinical trial population.” The research was presented at the 2021 ACTRIMS Forum.

Read the supplement here or by clicking on the image

Elevations in serum neurofilament light chain levels in people with multiple sclerosis (MS) are significantly linked to worse neurologic function, clinical disability, and lower brain volumes, according to new findings from a large, diverse population of patients with MS. “This is one of the largest studies to evaluate serum neurofilament light chain levels in people with MS,” said lead author Elias S. Sotirchos, MD, an assistant professor of neurology at Johns Hopkins University, Baltimore. “An important strength of this cohort is that it is a realworld cohort of patients followed in U.S. and European MS centers,” he said. “The study captures the diversity of the MS population, including demographics, comorbidities, lifestyle factors, and clinical characteristics that may otherwise not be captured in a clinical trial population.” The research was presented at the 2021 ACTRIMS Forum.

In a summary of abstracts presented at the ACTRIMS Forum 2021, Dr. Mark Freedman shares that he and his colleagues found no apparent increased risk of COVID-19 with long-term use of interferon β-1a in patients with multiple sclerosis (MS).

Dr. Freedman also highlights several abstracts examining the use of cladribine and ocrelizumab in older patients with MS.

A post hoc analysis of lymphocyte subsets in the combined safety populations of CLARITY, CLARITY Extension, and ORACLE-MS found that by week 96, the effects of cladribine tablets 3.5 mg/kg on CD19+ B, CD4+ T, and CD8+ T lymphocytes in younger and older patients with MS were similar, with steady recovery following nadir.

Another study on younger and older patients treated with cladribine tablets 3.5 mg/kg found that around a quarter of both groups had transient periods of Grade ≥3 lymphopenia during the study, and the rate of certain infection-related treatment-emergent adverse events was higher in the older patients.

A single-center study found that 25% of patients in the older population stopped ocrelizumab, the most common reasons being disease progression and repeated or severe infections.

Lastly, an evaluation of older patients with progressive MS found no statistical difference in 2-year clinical endpoints for patients taking ocrelizumab compared to prior to anti-CD20 therapy.

--

Mark S. Freedman, MSc, MD is a Professor, Department of Neurology, University of Ottawa and The Ottawa Hospital Research Institute; and Director, Multiple Sclerosis Research Unit, The Ottawa Hospital–General Campus.

Mark S. Freedman, MSc, MD, has disclosed the following relevant financial relationships:

Serve(d) on the advisory board, board of directors, or other similar groups for: Actelion (Janssen/Johnson and Johnson); Alexion; Atara Biotherapeutics; Bayer Healthcare; Biogen Idec; Celgene; Clene Nanomedicine; GRI Bio; Hoffmann-La Roche; Magenta Therapeutics; Merck Serono; MedDay Pharmaceuticals; Novartis; Sanofi Genzyme; Teva Canada.

Serve(d) as a member of a speakers bureau for: Sanofi Genzyme; EMD Serono.

Received honoraria or consultation fees for: Actelion (Janssen/Johnson and Johnson); Alexion; Biogen Idec; Celgene (BMS); EMD Inc; Sanofi Genzyme; Hoffmann-La Roche; Merck Serono; Novartis; Teva Canada.

Received research or educational grants from: EMD Inc; Hoffmann-La Roche; Sanofi Genzyme Canada.

In a summary of abstracts presented at the ACTRIMS Forum 2021, Dr. Mark Freedman shares that he and his colleagues found no apparent increased risk of COVID-19 with long-term use of interferon β-1a in patients with multiple sclerosis (MS).

Dr. Freedman also highlights several abstracts examining the use of cladribine and ocrelizumab in older patients with MS.

A post hoc analysis of lymphocyte subsets in the combined safety populations of CLARITY, CLARITY Extension, and ORACLE-MS found that by week 96, the effects of cladribine tablets 3.5 mg/kg on CD19+ B, CD4+ T, and CD8+ T lymphocytes in younger and older patients with MS were similar, with steady recovery following nadir.

Another study on younger and older patients treated with cladribine tablets 3.5 mg/kg found that around a quarter of both groups had transient periods of Grade ≥3 lymphopenia during the study, and the rate of certain infection-related treatment-emergent adverse events was higher in the older patients.

A single-center study found that 25% of patients in the older population stopped ocrelizumab, the most common reasons being disease progression and repeated or severe infections.

Lastly, an evaluation of older patients with progressive MS found no statistical difference in 2-year clinical endpoints for patients taking ocrelizumab compared to prior to anti-CD20 therapy.

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Mark S. Freedman, MSc, MD is a Professor, Department of Neurology, University of Ottawa and The Ottawa Hospital Research Institute; and Director, Multiple Sclerosis Research Unit, The Ottawa Hospital–General Campus.

Mark S. Freedman, MSc, MD, has disclosed the following relevant financial relationships:

Serve(d) on the advisory board, board of directors, or other similar groups for: Actelion (Janssen/Johnson and Johnson); Alexion; Atara Biotherapeutics; Bayer Healthcare; Biogen Idec; Celgene; Clene Nanomedicine; GRI Bio; Hoffmann-La Roche; Magenta Therapeutics; Merck Serono; MedDay Pharmaceuticals; Novartis; Sanofi Genzyme; Teva Canada.

Serve(d) as a member of a speakers bureau for: Sanofi Genzyme; EMD Serono.

Received honoraria or consultation fees for: Actelion (Janssen/Johnson and Johnson); Alexion; Biogen Idec; Celgene (BMS); EMD Inc; Sanofi Genzyme; Hoffmann-La Roche; Merck Serono; Novartis; Teva Canada.

Received research or educational grants from: EMD Inc; Hoffmann-La Roche; Sanofi Genzyme Canada.

In a summary of abstracts presented at the ACTRIMS Forum 2021, Dr. Mark Freedman shares that he and his colleagues found no apparent increased risk of COVID-19 with long-term use of interferon β-1a in patients with multiple sclerosis (MS).

Dr. Freedman also highlights several abstracts examining the use of cladribine and ocrelizumab in older patients with MS.

A post hoc analysis of lymphocyte subsets in the combined safety populations of CLARITY, CLARITY Extension, and ORACLE-MS found that by week 96, the effects of cladribine tablets 3.5 mg/kg on CD19+ B, CD4+ T, and CD8+ T lymphocytes in younger and older patients with MS were similar, with steady recovery following nadir.

Another study on younger and older patients treated with cladribine tablets 3.5 mg/kg found that around a quarter of both groups had transient periods of Grade ≥3 lymphopenia during the study, and the rate of certain infection-related treatment-emergent adverse events was higher in the older patients.

A single-center study found that 25% of patients in the older population stopped ocrelizumab, the most common reasons being disease progression and repeated or severe infections.

Lastly, an evaluation of older patients with progressive MS found no statistical difference in 2-year clinical endpoints for patients taking ocrelizumab compared to prior to anti-CD20 therapy.

--

Mark S. Freedman, MSc, MD is a Professor, Department of Neurology, University of Ottawa and The Ottawa Hospital Research Institute; and Director, Multiple Sclerosis Research Unit, The Ottawa Hospital–General Campus.

Mark S. Freedman, MSc, MD, has disclosed the following relevant financial relationships:

Serve(d) on the advisory board, board of directors, or other similar groups for: Actelion (Janssen/Johnson and Johnson); Alexion; Atara Biotherapeutics; Bayer Healthcare; Biogen Idec; Celgene; Clene Nanomedicine; GRI Bio; Hoffmann-La Roche; Magenta Therapeutics; Merck Serono; MedDay Pharmaceuticals; Novartis; Sanofi Genzyme; Teva Canada.

Serve(d) as a member of a speakers bureau for: Sanofi Genzyme; EMD Serono.

Received honoraria or consultation fees for: Actelion (Janssen/Johnson and Johnson); Alexion; Biogen Idec; Celgene (BMS); EMD Inc; Sanofi Genzyme; Hoffmann-La Roche; Merck Serono; Novartis; Teva Canada.

Received research or educational grants from: EMD Inc; Hoffmann-La Roche; Sanofi Genzyme Canada.

Joseph Berger, MD, Associate Chief of the Multiple Sclerosis Division at Perelman School of Medicine at the University of Pennsylvania, presents highlights in multiple sclerosis (MS) symptom management from the ACTRIMS Forum 2021.

A follow-up of participants in the self-management program called Fatigue: Take Control found that while patients did not report any significant improvement in fatigue 5-6 years later, they also did not have greater fatigue than at baseline, suggesting that fatigue may not be a progressive symptom.

Next, a literature review of efficacy studies in MS rodent models found a complementary pharmacology of CBD and other constituents of nabiximols that may add additional benefit and mitigate THC tolerability.

A small study looking at pain prevalence in patients with relapsing-remitting MS (RRMS) found that 76% of patients had a pain syndrome, and 48% had neuropathic pain. The study also found that gabapentin 900 mg per day for 30 days was effective in decreasing pain intensity and frequency.

A multi-site study of 282 patients with MS reporting fatigue between 2013 and 2014 found that 21% of patients reported using prescription opiates, 76% of whom reported regular daily use.

Lastly, participants in Spasticity: Take Control—an education and lower extremity stretching program—reported significantly decreased pain severity and interference at 6 months, compared with range-of-motion exercises.

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Professor and Associate Chief, Department of Neurology, Multiple Sclerosis Division. Perelman School of Medicine at the University of Pennsylvania Philadelphia, Pennsylvania.

Joseph R. Berger, MD, has disclosed the following relevant financial relationships:

Received research grant from: Biogen; Roche/Genentech.

Received income in an amount ≥$250 from: Amgen; Biogen; Bristol Myers Squibb; Celgene; Encycle; Excision BioTherapeutics; Dr. Reddy; Genzyme; Inhibikase Therapeutics; Mapi-Pharma; Merck; Morphic Therapeutic; Novartis; Serono.

Joseph Berger, MD, Associate Chief of the Multiple Sclerosis Division at Perelman School of Medicine at the University of Pennsylvania, presents highlights in multiple sclerosis (MS) symptom management from the ACTRIMS Forum 2021.

A follow-up of participants in the self-management program called Fatigue: Take Control found that while patients did not report any significant improvement in fatigue 5-6 years later, they also did not have greater fatigue than at baseline, suggesting that fatigue may not be a progressive symptom.

Next, a literature review of efficacy studies in MS rodent models found a complementary pharmacology of CBD and other constituents of nabiximols that may add additional benefit and mitigate THC tolerability.

A small study looking at pain prevalence in patients with relapsing-remitting MS (RRMS) found that 76% of patients had a pain syndrome, and 48% had neuropathic pain. The study also found that gabapentin 900 mg per day for 30 days was effective in decreasing pain intensity and frequency.

A multi-site study of 282 patients with MS reporting fatigue between 2013 and 2014 found that 21% of patients reported using prescription opiates, 76% of whom reported regular daily use.

Lastly, participants in Spasticity: Take Control—an education and lower extremity stretching program—reported significantly decreased pain severity and interference at 6 months, compared with range-of-motion exercises.

--

Professor and Associate Chief, Department of Neurology, Multiple Sclerosis Division. Perelman School of Medicine at the University of Pennsylvania Philadelphia, Pennsylvania.

Joseph R. Berger, MD, has disclosed the following relevant financial relationships:

Received research grant from: Biogen; Roche/Genentech.

Received income in an amount ≥$250 from: Amgen; Biogen; Bristol Myers Squibb; Celgene; Encycle; Excision BioTherapeutics; Dr. Reddy; Genzyme; Inhibikase Therapeutics; Mapi-Pharma; Merck; Morphic Therapeutic; Novartis; Serono.

Joseph Berger, MD, Associate Chief of the Multiple Sclerosis Division at Perelman School of Medicine at the University of Pennsylvania, presents highlights in multiple sclerosis (MS) symptom management from the ACTRIMS Forum 2021.

A follow-up of participants in the self-management program called Fatigue: Take Control found that while patients did not report any significant improvement in fatigue 5-6 years later, they also did not have greater fatigue than at baseline, suggesting that fatigue may not be a progressive symptom.

Next, a literature review of efficacy studies in MS rodent models found a complementary pharmacology of CBD and other constituents of nabiximols that may add additional benefit and mitigate THC tolerability.

A small study looking at pain prevalence in patients with relapsing-remitting MS (RRMS) found that 76% of patients had a pain syndrome, and 48% had neuropathic pain. The study also found that gabapentin 900 mg per day for 30 days was effective in decreasing pain intensity and frequency.

A multi-site study of 282 patients with MS reporting fatigue between 2013 and 2014 found that 21% of patients reported using prescription opiates, 76% of whom reported regular daily use.

Lastly, participants in Spasticity: Take Control—an education and lower extremity stretching program—reported significantly decreased pain severity and interference at 6 months, compared with range-of-motion exercises.

--

Professor and Associate Chief, Department of Neurology, Multiple Sclerosis Division. Perelman School of Medicine at the University of Pennsylvania Philadelphia, Pennsylvania.

Joseph R. Berger, MD, has disclosed the following relevant financial relationships:

Received research grant from: Biogen; Roche/Genentech.

Received income in an amount ≥$250 from: Amgen; Biogen; Bristol Myers Squibb; Celgene; Encycle; Excision BioTherapeutics; Dr. Reddy; Genzyme; Inhibikase Therapeutics; Mapi-Pharma; Merck; Morphic Therapeutic; Novartis; Serono.