Multiple Sclerosis Hub

In patients with multiple sclerosis (MS), levels of light-chain neurofilament (NfL) in CSF at diagnosis seem to predict long-term clinical outcome and conversion from the relapsing-remitting phase of the disease to the secondary progressive phase, according to a study published in the September issue of Multiple Sclerosis Journal. “NfL is thought to reflect ongoing axonal degeneration, which dominates early in the disease phase, and our results support that increased early disease activity, as identified by increased levels of CSF-NfL, has a prognostic effect several years later,” said lead author Alok Bhan, MD, and colleagues. Dr. Bhan works in the Department of Neurology at Stavanger University Hospital in Norway.

Searching for Prognostic Markers

To test whether CSF-NfL levels in patients with MS could predict clinical outcome, Dr. Bhan and colleagues conducted standardized clinical assessments of patients with newly diagnosed MS at baseline and at five- and 10-year follow-up. Expanded Disability Status Scale (EDSS) progression between assessments was defined as an increase of 1 point or more for scores less than 6 and of 0.5 points or more for scores of 6 or greater. CSF obtained at baseline was analyzed for levels of NfL using enzyme-linked immunosorbent assay technology.

The study cohort included 44 patients, of whom 35 (80%) had relapsing-remitting MS, seven (16%) had secondary progressive MS, and two (4%) had primary progressive MS at baseline. Patients who progressed on EDSS tended to have higher median baseline CSF-NfL levels than patients who did not progress after five years (947 ng/L vs 246 ng/L, respectively) and those who did not progress after 10 years (708 ng/L vs 265 ng/L, respectively), although the latter difference was not statistically significant. Patients who converted from relapsing-remitting MS to secondary progressive MS at five years had a significantly higher median CSF level of NfL (2,122 ng/L), compared with those who did not convert (246 ng/L).

“We found a statistically significant correlation between NfL levels at baseline and EDSS progression and conversion from relapsing-remitting MS to secondary progressive MS at the five-year follow-up, but a weaker correlation at the 10-year follow-up,” the researchers said. “This [finding] may be due to the increasing number of patients on disease-modifying therapy throughout the study period, as only 16% received therapy at baseline, but 54% [did] at 10-year follow-up.”

The Predictive Value of NfL

“This is now another important report underscoring the predictive value of NfL levels for the evolution of future disability in MS, but the … study clearly suffers from the relatively low number of patients investigated,” said Michael Khalil, MD, PhD, in an accompanying editorial. Dr. Khalil is an Associate Professor of General Neurology at the Medical University of Graz in Austria. “Nevertheless, neurofilaments are currently the most promising markers to indicate neuro-axonal damage in MS and other neurologic diseases. The availability of a highly sensitive blood assay now facilitates its use for further research and in clinical practice.”

—Glenn S. Williams

Suggested Reading

Bhan A, Jacobsen C, Myhr KM, et al. Neurofilaments and 10-year follow-up in multiple sclerosis. Mult Scler. 2018; 24(10):1301-1307.

Khalil M. Are neurofilaments valuable biomarkers for long-term disease prognostication in MS? Mult Scler. 2018; 24(10):1270-1271.

In patients with multiple sclerosis (MS), levels of light-chain neurofilament (NfL) in CSF at diagnosis seem to predict long-term clinical outcome and conversion from the relapsing-remitting phase of the disease to the secondary progressive phase, according to a study published in the September issue of Multiple Sclerosis Journal. “NfL is thought to reflect ongoing axonal degeneration, which dominates early in the disease phase, and our results support that increased early disease activity, as identified by increased levels of CSF-NfL, has a prognostic effect several years later,” said lead author Alok Bhan, MD, and colleagues. Dr. Bhan works in the Department of Neurology at Stavanger University Hospital in Norway.

Searching for Prognostic Markers

To test whether CSF-NfL levels in patients with MS could predict clinical outcome, Dr. Bhan and colleagues conducted standardized clinical assessments of patients with newly diagnosed MS at baseline and at five- and 10-year follow-up. Expanded Disability Status Scale (EDSS) progression between assessments was defined as an increase of 1 point or more for scores less than 6 and of 0.5 points or more for scores of 6 or greater. CSF obtained at baseline was analyzed for levels of NfL using enzyme-linked immunosorbent assay technology.

The study cohort included 44 patients, of whom 35 (80%) had relapsing-remitting MS, seven (16%) had secondary progressive MS, and two (4%) had primary progressive MS at baseline. Patients who progressed on EDSS tended to have higher median baseline CSF-NfL levels than patients who did not progress after five years (947 ng/L vs 246 ng/L, respectively) and those who did not progress after 10 years (708 ng/L vs 265 ng/L, respectively), although the latter difference was not statistically significant. Patients who converted from relapsing-remitting MS to secondary progressive MS at five years had a significantly higher median CSF level of NfL (2,122 ng/L), compared with those who did not convert (246 ng/L).

“We found a statistically significant correlation between NfL levels at baseline and EDSS progression and conversion from relapsing-remitting MS to secondary progressive MS at the five-year follow-up, but a weaker correlation at the 10-year follow-up,” the researchers said. “This [finding] may be due to the increasing number of patients on disease-modifying therapy throughout the study period, as only 16% received therapy at baseline, but 54% [did] at 10-year follow-up.”

The Predictive Value of NfL

“This is now another important report underscoring the predictive value of NfL levels for the evolution of future disability in MS, but the … study clearly suffers from the relatively low number of patients investigated,” said Michael Khalil, MD, PhD, in an accompanying editorial. Dr. Khalil is an Associate Professor of General Neurology at the Medical University of Graz in Austria. “Nevertheless, neurofilaments are currently the most promising markers to indicate neuro-axonal damage in MS and other neurologic diseases. The availability of a highly sensitive blood assay now facilitates its use for further research and in clinical practice.”

—Glenn S. Williams

Suggested Reading

Bhan A, Jacobsen C, Myhr KM, et al. Neurofilaments and 10-year follow-up in multiple sclerosis. Mult Scler. 2018; 24(10):1301-1307.

Khalil M. Are neurofilaments valuable biomarkers for long-term disease prognostication in MS? Mult Scler. 2018; 24(10):1270-1271.

In patients with multiple sclerosis (MS), levels of light-chain neurofilament (NfL) in CSF at diagnosis seem to predict long-term clinical outcome and conversion from the relapsing-remitting phase of the disease to the secondary progressive phase, according to a study published in the September issue of Multiple Sclerosis Journal. “NfL is thought to reflect ongoing axonal degeneration, which dominates early in the disease phase, and our results support that increased early disease activity, as identified by increased levels of CSF-NfL, has a prognostic effect several years later,” said lead author Alok Bhan, MD, and colleagues. Dr. Bhan works in the Department of Neurology at Stavanger University Hospital in Norway.

Searching for Prognostic Markers

To test whether CSF-NfL levels in patients with MS could predict clinical outcome, Dr. Bhan and colleagues conducted standardized clinical assessments of patients with newly diagnosed MS at baseline and at five- and 10-year follow-up. Expanded Disability Status Scale (EDSS) progression between assessments was defined as an increase of 1 point or more for scores less than 6 and of 0.5 points or more for scores of 6 or greater. CSF obtained at baseline was analyzed for levels of NfL using enzyme-linked immunosorbent assay technology.

The study cohort included 44 patients, of whom 35 (80%) had relapsing-remitting MS, seven (16%) had secondary progressive MS, and two (4%) had primary progressive MS at baseline. Patients who progressed on EDSS tended to have higher median baseline CSF-NfL levels than patients who did not progress after five years (947 ng/L vs 246 ng/L, respectively) and those who did not progress after 10 years (708 ng/L vs 265 ng/L, respectively), although the latter difference was not statistically significant. Patients who converted from relapsing-remitting MS to secondary progressive MS at five years had a significantly higher median CSF level of NfL (2,122 ng/L), compared with those who did not convert (246 ng/L).

“We found a statistically significant correlation between NfL levels at baseline and EDSS progression and conversion from relapsing-remitting MS to secondary progressive MS at the five-year follow-up, but a weaker correlation at the 10-year follow-up,” the researchers said. “This [finding] may be due to the increasing number of patients on disease-modifying therapy throughout the study period, as only 16% received therapy at baseline, but 54% [did] at 10-year follow-up.”

The Predictive Value of NfL

“This is now another important report underscoring the predictive value of NfL levels for the evolution of future disability in MS, but the … study clearly suffers from the relatively low number of patients investigated,” said Michael Khalil, MD, PhD, in an accompanying editorial. Dr. Khalil is an Associate Professor of General Neurology at the Medical University of Graz in Austria. “Nevertheless, neurofilaments are currently the most promising markers to indicate neuro-axonal damage in MS and other neurologic diseases. The availability of a highly sensitive blood assay now facilitates its use for further research and in clinical practice.”

—Glenn S. Williams

Suggested Reading

Bhan A, Jacobsen C, Myhr KM, et al. Neurofilaments and 10-year follow-up in multiple sclerosis. Mult Scler. 2018; 24(10):1301-1307.

Khalil M. Are neurofilaments valuable biomarkers for long-term disease prognostication in MS? Mult Scler. 2018; 24(10):1270-1271.

An estimated 3% of patients with multiple sclerosis (MS) have a benign course of disease, according to findings from a population-based UK study published online ahead of print September 3 in Journal of Neurology, Neurosurgery & Psychiatry. The term “benign MS” remains problematic, however.

“The study of the individuals with extremely favorable outcomes may uncover insights about disease pathogenesis or repair. However, the insensitivity of Expanded Disability Status Scale [EDSS]–based definitions of benign MS and the discrepancy between patient and clinician perception of benign MS undermine use of the term ‘benign’ in the clinical setting,” said Emma Clare Tallantyre, BMBS, PhD, Clinical Senior Lecturer in Neurosciences at Cardiff University in the UK, and her colleagues.

The investigators found that of 1,049 patients with a disease duration of longer than 15 years, 200 had a recent EDSS score of less than 4.0. Of those patients, 60 were clinically assessed, and nine (15%) had benign MS, which was defined as an EDSS score less than 3.0 and lack of significant fatigue, mood disturbance, cognitive impairment, and disruption to employment in the absence of disease-modifying therapy at at least 15 years after symptom onset.

Extrapolating these data, the investigators estimated that 30 patients in the study population of 1,049 had benign MS, yielding a prevalence of 2.9%. Of the 60 patients who were clinically assessed, 39 thought they had benign MS, based on the following definition: “When referring to illness, ‘benign’ usually means a condition which has little or no harmful effects on a person. There are no complications, and there is a good outcome or prognosis.”

Patients who self-reported benign MS had significantly lower EDSS scores, fewer depressive symptoms, lower fatigue severity, and lower reported MS impact than did patients who did not report benign MS. “Self-reported benign MS status showed poor agreement with our composite definition of benign MS status and only fair agreement with EDSS-based definitions of benign MS status,” said the investigators.

—Jeff Evans

Suggested Reading

Tallantyre EC, Major PC, Atherton MJ, et al. How common is truly benign MS in a UK population? J Neurol Neurosurg Psychiatry. 2018 Sep 3 [Epub ahead of print].

An estimated 3% of patients with multiple sclerosis (MS) have a benign course of disease, according to findings from a population-based UK study published online ahead of print September 3 in Journal of Neurology, Neurosurgery & Psychiatry. The term “benign MS” remains problematic, however.

“The study of the individuals with extremely favorable outcomes may uncover insights about disease pathogenesis or repair. However, the insensitivity of Expanded Disability Status Scale [EDSS]–based definitions of benign MS and the discrepancy between patient and clinician perception of benign MS undermine use of the term ‘benign’ in the clinical setting,” said Emma Clare Tallantyre, BMBS, PhD, Clinical Senior Lecturer in Neurosciences at Cardiff University in the UK, and her colleagues.

The investigators found that of 1,049 patients with a disease duration of longer than 15 years, 200 had a recent EDSS score of less than 4.0. Of those patients, 60 were clinically assessed, and nine (15%) had benign MS, which was defined as an EDSS score less than 3.0 and lack of significant fatigue, mood disturbance, cognitive impairment, and disruption to employment in the absence of disease-modifying therapy at at least 15 years after symptom onset.

Extrapolating these data, the investigators estimated that 30 patients in the study population of 1,049 had benign MS, yielding a prevalence of 2.9%. Of the 60 patients who were clinically assessed, 39 thought they had benign MS, based on the following definition: “When referring to illness, ‘benign’ usually means a condition which has little or no harmful effects on a person. There are no complications, and there is a good outcome or prognosis.”

Patients who self-reported benign MS had significantly lower EDSS scores, fewer depressive symptoms, lower fatigue severity, and lower reported MS impact than did patients who did not report benign MS. “Self-reported benign MS status showed poor agreement with our composite definition of benign MS status and only fair agreement with EDSS-based definitions of benign MS status,” said the investigators.

—Jeff Evans

Suggested Reading

Tallantyre EC, Major PC, Atherton MJ, et al. How common is truly benign MS in a UK population? J Neurol Neurosurg Psychiatry. 2018 Sep 3 [Epub ahead of print].

An estimated 3% of patients with multiple sclerosis (MS) have a benign course of disease, according to findings from a population-based UK study published online ahead of print September 3 in Journal of Neurology, Neurosurgery & Psychiatry. The term “benign MS” remains problematic, however.

“The study of the individuals with extremely favorable outcomes may uncover insights about disease pathogenesis or repair. However, the insensitivity of Expanded Disability Status Scale [EDSS]–based definitions of benign MS and the discrepancy between patient and clinician perception of benign MS undermine use of the term ‘benign’ in the clinical setting,” said Emma Clare Tallantyre, BMBS, PhD, Clinical Senior Lecturer in Neurosciences at Cardiff University in the UK, and her colleagues.

The investigators found that of 1,049 patients with a disease duration of longer than 15 years, 200 had a recent EDSS score of less than 4.0. Of those patients, 60 were clinically assessed, and nine (15%) had benign MS, which was defined as an EDSS score less than 3.0 and lack of significant fatigue, mood disturbance, cognitive impairment, and disruption to employment in the absence of disease-modifying therapy at at least 15 years after symptom onset.

Extrapolating these data, the investigators estimated that 30 patients in the study population of 1,049 had benign MS, yielding a prevalence of 2.9%. Of the 60 patients who were clinically assessed, 39 thought they had benign MS, based on the following definition: “When referring to illness, ‘benign’ usually means a condition which has little or no harmful effects on a person. There are no complications, and there is a good outcome or prognosis.”

Patients who self-reported benign MS had significantly lower EDSS scores, fewer depressive symptoms, lower fatigue severity, and lower reported MS impact than did patients who did not report benign MS. “Self-reported benign MS status showed poor agreement with our composite definition of benign MS status and only fair agreement with EDSS-based definitions of benign MS status,” said the investigators.

—Jeff Evans

Suggested Reading

Tallantyre EC, Major PC, Atherton MJ, et al. How common is truly benign MS in a UK population? J Neurol Neurosurg Psychiatry. 2018 Sep 3 [Epub ahead of print].

Nearly 3% of patients with multiple sclerosis (MS) are estimated to have a truly benign course of disease over at least 15 years without the use of disease-modifying therapy, based on findings from a U.K. population-based study that also showed how poorly benign disease tracks with disability measures and lacks agreement between patients and physicians.

designer491/Thinkstock

“The study of the individuals with extremely favorable outcomes may uncover insights about disease pathogenesis or repair. However, the insensitivity of EDSS [Expanded Disability Status Scale]–based definitions of benign MS and the discrepancy between patient and clinician perception of benign MS undermine use of the term ‘benign’ in the clinical setting,” Emma Clare Tallantyre, MD, of Cardiff (Wales) University, and her colleagues wrote in the Journal of Neurology, Neurosurgery & Psychiatry.

Dr. Tallantyre and her colleagues found that, of 1,049 patients with disease duration longer than 15 years, 200 had a recent EDSS score of less than 4.0. Of those 200, 60 were clinically assessed and 9 (15%) were found to have truly benign MS, defined as having an EDSS less than 3.0 and having no significant fatigue, mood disturbance, cognitive impairment, or disruption to employment in the absence of disease-modifying therapy at least 15 years after symptom onset.

The investigators extrapolated these data to estimate that 30 patients in the study population of 1,049 had truly benign MS, for a prevalence of 2.9%. However, of the 60 patients who were clinically assessed, 39 thought they had benign MS based on the lay definition provided: “When referring to illness, ‘benign’ usually means a condition which has little or no harmful effects on a person. There are no complications and there is a good outcome or prognosis.”

Patients who self-reported benign MS had significantly lower EDSS scores, fewer depressive symptoms, lower fatigue severity, and lower reported MS impact than did patients who did not report benign MS. “Self-reported benign MS status showed poor agreement with our composite definition of benign MS status and only fair agreement with EDSS-based definitions of benign MS status,” the investigators wrote.

[email protected]

SOURCE: Tallantyre EC et al. J Neurol Neurosurg Psychiatry. 2018 Sep 3. doi: 10.1136/jnnp-2018-318802.

Nearly 3% of patients with multiple sclerosis (MS) are estimated to have a truly benign course of disease over at least 15 years without the use of disease-modifying therapy, based on findings from a U.K. population-based study that also showed how poorly benign disease tracks with disability measures and lacks agreement between patients and physicians.

designer491/Thinkstock

“The study of the individuals with extremely favorable outcomes may uncover insights about disease pathogenesis or repair. However, the insensitivity of EDSS [Expanded Disability Status Scale]–based definitions of benign MS and the discrepancy between patient and clinician perception of benign MS undermine use of the term ‘benign’ in the clinical setting,” Emma Clare Tallantyre, MD, of Cardiff (Wales) University, and her colleagues wrote in the Journal of Neurology, Neurosurgery & Psychiatry.

Dr. Tallantyre and her colleagues found that, of 1,049 patients with disease duration longer than 15 years, 200 had a recent EDSS score of less than 4.0. Of those 200, 60 were clinically assessed and 9 (15%) were found to have truly benign MS, defined as having an EDSS less than 3.0 and having no significant fatigue, mood disturbance, cognitive impairment, or disruption to employment in the absence of disease-modifying therapy at least 15 years after symptom onset.

The investigators extrapolated these data to estimate that 30 patients in the study population of 1,049 had truly benign MS, for a prevalence of 2.9%. However, of the 60 patients who were clinically assessed, 39 thought they had benign MS based on the lay definition provided: “When referring to illness, ‘benign’ usually means a condition which has little or no harmful effects on a person. There are no complications and there is a good outcome or prognosis.”

Patients who self-reported benign MS had significantly lower EDSS scores, fewer depressive symptoms, lower fatigue severity, and lower reported MS impact than did patients who did not report benign MS. “Self-reported benign MS status showed poor agreement with our composite definition of benign MS status and only fair agreement with EDSS-based definitions of benign MS status,” the investigators wrote.

[email protected]

SOURCE: Tallantyre EC et al. J Neurol Neurosurg Psychiatry. 2018 Sep 3. doi: 10.1136/jnnp-2018-318802.

Nearly 3% of patients with multiple sclerosis (MS) are estimated to have a truly benign course of disease over at least 15 years without the use of disease-modifying therapy, based on findings from a U.K. population-based study that also showed how poorly benign disease tracks with disability measures and lacks agreement between patients and physicians.

designer491/Thinkstock

“The study of the individuals with extremely favorable outcomes may uncover insights about disease pathogenesis or repair. However, the insensitivity of EDSS [Expanded Disability Status Scale]–based definitions of benign MS and the discrepancy between patient and clinician perception of benign MS undermine use of the term ‘benign’ in the clinical setting,” Emma Clare Tallantyre, MD, of Cardiff (Wales) University, and her colleagues wrote in the Journal of Neurology, Neurosurgery & Psychiatry.

Dr. Tallantyre and her colleagues found that, of 1,049 patients with disease duration longer than 15 years, 200 had a recent EDSS score of less than 4.0. Of those 200, 60 were clinically assessed and 9 (15%) were found to have truly benign MS, defined as having an EDSS less than 3.0 and having no significant fatigue, mood disturbance, cognitive impairment, or disruption to employment in the absence of disease-modifying therapy at least 15 years after symptom onset.

The investigators extrapolated these data to estimate that 30 patients in the study population of 1,049 had truly benign MS, for a prevalence of 2.9%. However, of the 60 patients who were clinically assessed, 39 thought they had benign MS based on the lay definition provided: “When referring to illness, ‘benign’ usually means a condition which has little or no harmful effects on a person. There are no complications and there is a good outcome or prognosis.”

Patients who self-reported benign MS had significantly lower EDSS scores, fewer depressive symptoms, lower fatigue severity, and lower reported MS impact than did patients who did not report benign MS. “Self-reported benign MS status showed poor agreement with our composite definition of benign MS status and only fair agreement with EDSS-based definitions of benign MS status,” the investigators wrote.

[email protected]

SOURCE: Tallantyre EC et al. J Neurol Neurosurg Psychiatry. 2018 Sep 3. doi: 10.1136/jnnp-2018-318802.

LOS ANGELES – Serum neurofilament light chain shows promise as a biomarker for disease severity and response to treatment with autologous bone marrow transplant in patients with multiple sclerosis, according to findings from an analysis of paired samples.

solitude72/iStockphoto

Serum neurofilament light chain (Nf-L) levels were found to be significantly elevated in both the serum and cerebrospinal fluid (CSF) of 23 patients with aggressive multiple sclerosis (MS), compared with samples from 5 controls with noninflammatory neurologic conditions such as chronic fatigue syndrome or migraine. The levels in the patients with MS were significantly reduced following autologous bone marrow transplant (BMT), Simon Thebault, MD, reported in a poster at the annual meeting of the American Academy of Neurology.

Nf-L has been shown to be a biomarker for neuronal damage and to have potential for denoting disease severity and treatment response in MS; for this analysis, samples from patients were collected at baseline and annually for 3 years after transplant. Samples from controls were obtained for comparison.

“Our objective, really, was [to determine if we could] detect a treatment response in neurofilament light chain, and secondly, did the degree of neurofilament light chain being high at baseline predict anything about subsequent disease outcome?” Dr. Thebault, a third-year resident at the University of Ottawa, reported in the poster.

Indeed, a treatment response was detected; baseline levels were high, and levels in both serum and CSF were down significantly (P = .05) at both 1 and 3 years following bone marrow transplant, and they stayed down. “In fact, they were so low, they were not significantly different from [the levels] in noninflammatory controls,” he said, noting that serum and CSF NfL levels were highly correlated (r = .833; P less than .001).

Study subjects were patients with aggressive MS, characterized by early disease onset, rapid progression, frequent relapses, and poor treatment responses. Such patients who have received autologous BMT represent an interesting group for examining treatment responses, he said.

At baseline, these patients presumably have a high burden of tissue injury, which would be representative of high levels of Nf-L; good, prospective data show these patients have no evidence of ongoing inflammatory disease following an intensive regimen that includes chemoablation and reinfusion of autologous stem cells, which is representative of a significant reduction of neurofilament levels, he explained.

Importantly, serum and CSF levels were correlated in this study, he said, noting that most prior work has involved CSF, but “the real clinical utility in neurofilament light chain is probably in the serum, because patients don’t like having lumbar punctures too often.”

With respect to the second question pertaining to disease outcomes, the study did show that patients with baseline Nf-L levels above the median for the group had worse T1 lesion volumes at baseline and after transplant (P = .0021 at 36 months), and also had worsening brain atrophy even after transplant (P = .0389 at 60 months).

The curves appeared to be diverging, suggesting that, in the absence of inflammatory disease activity, patients with high Nf-L levels at baseline continue to have ongoing atrophy at a differential rate, compared with those with low baseline levels, Dr. Thebault said.

Other findings included better Expanded Disability Status Scale outcomes after transplant in patients with lower baseline Nf-L, and a trend toward worsening outcomes among those with higher baseline Nf-L levels, although the study may have been underpowered for this. Additionally, lower baseline Nf-L predicted significantly lower T1 and T2 lesion volume, number of gadolinium-enhancing lesions, and a reduction in brain atrophy, whereas higher baseline Nf-L predicted the opposite, he noted, adding that N-acetylaspartate-to-creatinine ratios also tended to vary inversely with Nf-L levels.

The most important findings of the study are “the sustained reduction in Nf-L levels after BMT, and that higher baseline levels predicted worse MRI outcomes,” Dr. Thebault noted. “Together these data add to a growing body of evidence that suggests that serum Nf-L has a role in monitoring treatment responses and even a predictive value in determining disease severity.”

This study was supported by Quanterix, which provided Nf-L assay kits. Dr. Thebault reported having no disclosures.

[email protected]

SOURCE: Thebault S et al. Neurology. 2018 Apr;90(15 Suppl.):P5.036.

LOS ANGELES – Serum neurofilament light chain shows promise as a biomarker for disease severity and response to treatment with autologous bone marrow transplant in patients with multiple sclerosis, according to findings from an analysis of paired samples.

solitude72/iStockphoto

Serum neurofilament light chain (Nf-L) levels were found to be significantly elevated in both the serum and cerebrospinal fluid (CSF) of 23 patients with aggressive multiple sclerosis (MS), compared with samples from 5 controls with noninflammatory neurologic conditions such as chronic fatigue syndrome or migraine. The levels in the patients with MS were significantly reduced following autologous bone marrow transplant (BMT), Simon Thebault, MD, reported in a poster at the annual meeting of the American Academy of Neurology.

Nf-L has been shown to be a biomarker for neuronal damage and to have potential for denoting disease severity and treatment response in MS; for this analysis, samples from patients were collected at baseline and annually for 3 years after transplant. Samples from controls were obtained for comparison.

“Our objective, really, was [to determine if we could] detect a treatment response in neurofilament light chain, and secondly, did the degree of neurofilament light chain being high at baseline predict anything about subsequent disease outcome?” Dr. Thebault, a third-year resident at the University of Ottawa, reported in the poster.

Indeed, a treatment response was detected; baseline levels were high, and levels in both serum and CSF were down significantly (P = .05) at both 1 and 3 years following bone marrow transplant, and they stayed down. “In fact, they were so low, they were not significantly different from [the levels] in noninflammatory controls,” he said, noting that serum and CSF NfL levels were highly correlated (r = .833; P less than .001).

Study subjects were patients with aggressive MS, characterized by early disease onset, rapid progression, frequent relapses, and poor treatment responses. Such patients who have received autologous BMT represent an interesting group for examining treatment responses, he said.

At baseline, these patients presumably have a high burden of tissue injury, which would be representative of high levels of Nf-L; good, prospective data show these patients have no evidence of ongoing inflammatory disease following an intensive regimen that includes chemoablation and reinfusion of autologous stem cells, which is representative of a significant reduction of neurofilament levels, he explained.

Importantly, serum and CSF levels were correlated in this study, he said, noting that most prior work has involved CSF, but “the real clinical utility in neurofilament light chain is probably in the serum, because patients don’t like having lumbar punctures too often.”

With respect to the second question pertaining to disease outcomes, the study did show that patients with baseline Nf-L levels above the median for the group had worse T1 lesion volumes at baseline and after transplant (P = .0021 at 36 months), and also had worsening brain atrophy even after transplant (P = .0389 at 60 months).

The curves appeared to be diverging, suggesting that, in the absence of inflammatory disease activity, patients with high Nf-L levels at baseline continue to have ongoing atrophy at a differential rate, compared with those with low baseline levels, Dr. Thebault said.

Other findings included better Expanded Disability Status Scale outcomes after transplant in patients with lower baseline Nf-L, and a trend toward worsening outcomes among those with higher baseline Nf-L levels, although the study may have been underpowered for this. Additionally, lower baseline Nf-L predicted significantly lower T1 and T2 lesion volume, number of gadolinium-enhancing lesions, and a reduction in brain atrophy, whereas higher baseline Nf-L predicted the opposite, he noted, adding that N-acetylaspartate-to-creatinine ratios also tended to vary inversely with Nf-L levels.

The most important findings of the study are “the sustained reduction in Nf-L levels after BMT, and that higher baseline levels predicted worse MRI outcomes,” Dr. Thebault noted. “Together these data add to a growing body of evidence that suggests that serum Nf-L has a role in monitoring treatment responses and even a predictive value in determining disease severity.”

This study was supported by Quanterix, which provided Nf-L assay kits. Dr. Thebault reported having no disclosures.

[email protected]

SOURCE: Thebault S et al. Neurology. 2018 Apr;90(15 Suppl.):P5.036.

LOS ANGELES – Serum neurofilament light chain shows promise as a biomarker for disease severity and response to treatment with autologous bone marrow transplant in patients with multiple sclerosis, according to findings from an analysis of paired samples.

solitude72/iStockphoto

Serum neurofilament light chain (Nf-L) levels were found to be significantly elevated in both the serum and cerebrospinal fluid (CSF) of 23 patients with aggressive multiple sclerosis (MS), compared with samples from 5 controls with noninflammatory neurologic conditions such as chronic fatigue syndrome or migraine. The levels in the patients with MS were significantly reduced following autologous bone marrow transplant (BMT), Simon Thebault, MD, reported in a poster at the annual meeting of the American Academy of Neurology.

Nf-L has been shown to be a biomarker for neuronal damage and to have potential for denoting disease severity and treatment response in MS; for this analysis, samples from patients were collected at baseline and annually for 3 years after transplant. Samples from controls were obtained for comparison.

“Our objective, really, was [to determine if we could] detect a treatment response in neurofilament light chain, and secondly, did the degree of neurofilament light chain being high at baseline predict anything about subsequent disease outcome?” Dr. Thebault, a third-year resident at the University of Ottawa, reported in the poster.

Indeed, a treatment response was detected; baseline levels were high, and levels in both serum and CSF were down significantly (P = .05) at both 1 and 3 years following bone marrow transplant, and they stayed down. “In fact, they were so low, they were not significantly different from [the levels] in noninflammatory controls,” he said, noting that serum and CSF NfL levels were highly correlated (r = .833; P less than .001).

Study subjects were patients with aggressive MS, characterized by early disease onset, rapid progression, frequent relapses, and poor treatment responses. Such patients who have received autologous BMT represent an interesting group for examining treatment responses, he said.

At baseline, these patients presumably have a high burden of tissue injury, which would be representative of high levels of Nf-L; good, prospective data show these patients have no evidence of ongoing inflammatory disease following an intensive regimen that includes chemoablation and reinfusion of autologous stem cells, which is representative of a significant reduction of neurofilament levels, he explained.

Importantly, serum and CSF levels were correlated in this study, he said, noting that most prior work has involved CSF, but “the real clinical utility in neurofilament light chain is probably in the serum, because patients don’t like having lumbar punctures too often.”

With respect to the second question pertaining to disease outcomes, the study did show that patients with baseline Nf-L levels above the median for the group had worse T1 lesion volumes at baseline and after transplant (P = .0021 at 36 months), and also had worsening brain atrophy even after transplant (P = .0389 at 60 months).

The curves appeared to be diverging, suggesting that, in the absence of inflammatory disease activity, patients with high Nf-L levels at baseline continue to have ongoing atrophy at a differential rate, compared with those with low baseline levels, Dr. Thebault said.

Other findings included better Expanded Disability Status Scale outcomes after transplant in patients with lower baseline Nf-L, and a trend toward worsening outcomes among those with higher baseline Nf-L levels, although the study may have been underpowered for this. Additionally, lower baseline Nf-L predicted significantly lower T1 and T2 lesion volume, number of gadolinium-enhancing lesions, and a reduction in brain atrophy, whereas higher baseline Nf-L predicted the opposite, he noted, adding that N-acetylaspartate-to-creatinine ratios also tended to vary inversely with Nf-L levels.

The most important findings of the study are “the sustained reduction in Nf-L levels after BMT, and that higher baseline levels predicted worse MRI outcomes,” Dr. Thebault noted. “Together these data add to a growing body of evidence that suggests that serum Nf-L has a role in monitoring treatment responses and even a predictive value in determining disease severity.”

This study was supported by Quanterix, which provided Nf-L assay kits. Dr. Thebault reported having no disclosures.

[email protected]

SOURCE: Thebault S et al. Neurology. 2018 Apr;90(15 Suppl.):P5.036.

A new subtype of multiple sclerosis called myelocortical multiple sclerosis is characterized by demyelination only in the spinal cord and cerebral cortex and not in the cerebral white matter.

Copyright (2018), with permission from Elsevier

SOURCE: Trapp B et al. Lancet Neurol. 2018 Aug 21. doi: 10.1016/ S1474-4422(18)30245-X.

A new subtype of multiple sclerosis called myelocortical multiple sclerosis is characterized by demyelination only in the spinal cord and cerebral cortex and not in the cerebral white matter.

Copyright (2018), with permission from Elsevier

SOURCE: Trapp B et al. Lancet Neurol. 2018 Aug 21. doi: 10.1016/ S1474-4422(18)30245-X.

A new subtype of multiple sclerosis called myelocortical multiple sclerosis is characterized by demyelination only in the spinal cord and cerebral cortex and not in the cerebral white matter.

Copyright (2018), with permission from Elsevier

SOURCE: Trapp B et al. Lancet Neurol. 2018 Aug 21. doi: 10.1016/ S1474-4422(18)30245-X.

The revised McDonald criteria for multiple sclerosis (MS) has led to more diagnoses in patients with clinically isolated syndrome (CIS), but a new study of the criteria has suggested that they may lead to a number of false positive MS diagnoses among patients with a less severe disease state.

solitude72/iStockphoto

Patients were assessed using both the 2010 and 2017 McDonald criteria for MS, and results were measured using sensitivity, specificity, positive predictive and negative predictive values, and accuracy at 1-year, 3-year, and 5-year follow-up. “The most important addition is that the new criteria allow MS diagnosis when the MRI scan meets criteria for DIS and unique oligoclonal bands (OCB) are present in [cerebrospinal fluid], even in absence of DIT on the MRI scan,” the researchers wrote. “The other major difference is that not only asymptomatic but also symptomatic lesions can be used to demonstrate DIS and DIT on MRI. Furthermore, cortical lesions can be used to demonstrate dissemination in space.”

The researchers found that 124 patients met 2010 DIS criteria (54%) and that 74 patients (60%) went on to develop clinically definite MS, while 149 patients (65%) met 2017 DIS criteria, and 89 patients (60%) went on to clinically definite MS. There were 46 patients (26%) who met 2010 DIT criteria, and 33 of those patients (72%) were diagnosed with clinically definite MS; 126 patients (70%) met 2017 DIT criteria, and 76 of those patients (60%) had clinically definite MS. The sensitivity for the 2010 criteria was 36% (95% confidence interval, 27%-47%)versus 68% for the 2017 criteria (95% CI, 57%-77%; P less than .001). However, specificity for the 2017 criteria was lower (61%; 95% CI, 50%-71%) when compared with the 2010 criteria (85%; 95% CI, 76%-92%; P less than .001). Researchers found more baseline MS diagnoses with the 2017 criteria than with the 2010 criteria, but they noted that 14 of 22 patients (64%) under the 2010 criteria and 26 of 48 patients (54%) under the 2017 criteria with MS had a second attack within 5 years.

The study was supported by the Dutch Multiple Sclerosis Research Foundation. One or more authors received compensation from Teva, Merck, Roche, Sanofi Genzyme, Biogen, and Novartis in the form of honoraria, for advisory board membership, as travel grants, or for participation in trials.

SOURCE: van der Vuurst de Vries RM, et al. JAMA Neurol. 2018 Aug 6. doi: 10.1001/jamaneurol.2018.2160.

The revised McDonald criteria for multiple sclerosis (MS) has led to more diagnoses in patients with clinically isolated syndrome (CIS), but a new study of the criteria has suggested that they may lead to a number of false positive MS diagnoses among patients with a less severe disease state.

solitude72/iStockphoto

Patients were assessed using both the 2010 and 2017 McDonald criteria for MS, and results were measured using sensitivity, specificity, positive predictive and negative predictive values, and accuracy at 1-year, 3-year, and 5-year follow-up. “The most important addition is that the new criteria allow MS diagnosis when the MRI scan meets criteria for DIS and unique oligoclonal bands (OCB) are present in [cerebrospinal fluid], even in absence of DIT on the MRI scan,” the researchers wrote. “The other major difference is that not only asymptomatic but also symptomatic lesions can be used to demonstrate DIS and DIT on MRI. Furthermore, cortical lesions can be used to demonstrate dissemination in space.”

The researchers found that 124 patients met 2010 DIS criteria (54%) and that 74 patients (60%) went on to develop clinically definite MS, while 149 patients (65%) met 2017 DIS criteria, and 89 patients (60%) went on to clinically definite MS. There were 46 patients (26%) who met 2010 DIT criteria, and 33 of those patients (72%) were diagnosed with clinically definite MS; 126 patients (70%) met 2017 DIT criteria, and 76 of those patients (60%) had clinically definite MS. The sensitivity for the 2010 criteria was 36% (95% confidence interval, 27%-47%)versus 68% for the 2017 criteria (95% CI, 57%-77%; P less than .001). However, specificity for the 2017 criteria was lower (61%; 95% CI, 50%-71%) when compared with the 2010 criteria (85%; 95% CI, 76%-92%; P less than .001). Researchers found more baseline MS diagnoses with the 2017 criteria than with the 2010 criteria, but they noted that 14 of 22 patients (64%) under the 2010 criteria and 26 of 48 patients (54%) under the 2017 criteria with MS had a second attack within 5 years.

The study was supported by the Dutch Multiple Sclerosis Research Foundation. One or more authors received compensation from Teva, Merck, Roche, Sanofi Genzyme, Biogen, and Novartis in the form of honoraria, for advisory board membership, as travel grants, or for participation in trials.

SOURCE: van der Vuurst de Vries RM, et al. JAMA Neurol. 2018 Aug 6. doi: 10.1001/jamaneurol.2018.2160.

The revised McDonald criteria for multiple sclerosis (MS) has led to more diagnoses in patients with clinically isolated syndrome (CIS), but a new study of the criteria has suggested that they may lead to a number of false positive MS diagnoses among patients with a less severe disease state.

solitude72/iStockphoto

Patients were assessed using both the 2010 and 2017 McDonald criteria for MS, and results were measured using sensitivity, specificity, positive predictive and negative predictive values, and accuracy at 1-year, 3-year, and 5-year follow-up. “The most important addition is that the new criteria allow MS diagnosis when the MRI scan meets criteria for DIS and unique oligoclonal bands (OCB) are present in [cerebrospinal fluid], even in absence of DIT on the MRI scan,” the researchers wrote. “The other major difference is that not only asymptomatic but also symptomatic lesions can be used to demonstrate DIS and DIT on MRI. Furthermore, cortical lesions can be used to demonstrate dissemination in space.”

The researchers found that 124 patients met 2010 DIS criteria (54%) and that 74 patients (60%) went on to develop clinically definite MS, while 149 patients (65%) met 2017 DIS criteria, and 89 patients (60%) went on to clinically definite MS. There were 46 patients (26%) who met 2010 DIT criteria, and 33 of those patients (72%) were diagnosed with clinically definite MS; 126 patients (70%) met 2017 DIT criteria, and 76 of those patients (60%) had clinically definite MS. The sensitivity for the 2010 criteria was 36% (95% confidence interval, 27%-47%)versus 68% for the 2017 criteria (95% CI, 57%-77%; P less than .001). However, specificity for the 2017 criteria was lower (61%; 95% CI, 50%-71%) when compared with the 2010 criteria (85%; 95% CI, 76%-92%; P less than .001). Researchers found more baseline MS diagnoses with the 2017 criteria than with the 2010 criteria, but they noted that 14 of 22 patients (64%) under the 2010 criteria and 26 of 48 patients (54%) under the 2017 criteria with MS had a second attack within 5 years.

The study was supported by the Dutch Multiple Sclerosis Research Foundation. One or more authors received compensation from Teva, Merck, Roche, Sanofi Genzyme, Biogen, and Novartis in the form of honoraria, for advisory board membership, as travel grants, or for participation in trials.

SOURCE: van der Vuurst de Vries RM, et al. JAMA Neurol. 2018 Aug 6. doi: 10.1001/jamaneurol.2018.2160.

LOS ANGELES—Aspirin may be an effective pretreatment for exercise in patients with multiple sclerosis (MS), according to a study described at the 70th Annual Meeting of the American Academy of Neurology.

“Exercise in MS we know to be beneficial on multiple levels,” said Victoria M. Leavitt, PhD, Assistant Professor of Neuropsychology at Columbia University Medical Center in New York. “In addition to physical benefits like gait, balance, and improved cardiovascular fitness, exercise is also associated with improved mood, reduced fatigue, and improved memory performance. The challenge, of course, is that exercise is only beneficial if people actually do it.”

—Jake Remaly

Suggested Reading

Leavitt VM, Blanchard AR, Guo CY, et al. Aspirin is an effective pretreatment for exercise in multiple sclerosis: a double-blind randomized controlled pilot trial. Mult Scler. 2017 Oct 27 [Epub ahead of print].

Wingerchuk DM, Benarroch EE, O’Brien PC, et al. A randomized controlled crossover trial of aspirin for fatigue in multiple sclerosis. Neurology. 2005;64(7):1267-1269.

LOS ANGELES—Aspirin may be an effective pretreatment for exercise in patients with multiple sclerosis (MS), according to a study described at the 70th Annual Meeting of the American Academy of Neurology.

“Exercise in MS we know to be beneficial on multiple levels,” said Victoria M. Leavitt, PhD, Assistant Professor of Neuropsychology at Columbia University Medical Center in New York. “In addition to physical benefits like gait, balance, and improved cardiovascular fitness, exercise is also associated with improved mood, reduced fatigue, and improved memory performance. The challenge, of course, is that exercise is only beneficial if people actually do it.”

—Jake Remaly

Suggested Reading

Leavitt VM, Blanchard AR, Guo CY, et al. Aspirin is an effective pretreatment for exercise in multiple sclerosis: a double-blind randomized controlled pilot trial. Mult Scler. 2017 Oct 27 [Epub ahead of print].

Wingerchuk DM, Benarroch EE, O’Brien PC, et al. A randomized controlled crossover trial of aspirin for fatigue in multiple sclerosis. Neurology. 2005;64(7):1267-1269.

LOS ANGELES—Aspirin may be an effective pretreatment for exercise in patients with multiple sclerosis (MS), according to a study described at the 70th Annual Meeting of the American Academy of Neurology.

“Exercise in MS we know to be beneficial on multiple levels,” said Victoria M. Leavitt, PhD, Assistant Professor of Neuropsychology at Columbia University Medical Center in New York. “In addition to physical benefits like gait, balance, and improved cardiovascular fitness, exercise is also associated with improved mood, reduced fatigue, and improved memory performance. The challenge, of course, is that exercise is only beneficial if people actually do it.”

—Jake Remaly

Suggested Reading

Leavitt VM, Blanchard AR, Guo CY, et al. Aspirin is an effective pretreatment for exercise in multiple sclerosis: a double-blind randomized controlled pilot trial. Mult Scler. 2017 Oct 27 [Epub ahead of print].

Wingerchuk DM, Benarroch EE, O’Brien PC, et al. A randomized controlled crossover trial of aspirin for fatigue in multiple sclerosis. Neurology. 2005;64(7):1267-1269.

Superimposed relapses were associated with a significantly reduced risk of disability progression in a longitudinal, prospective cohort study of 1,419 multiple sclerosis patients (MS) of the progressive-onset type.

HUNG KUO CHUN/Thinkstock

SOURCE: Hughes J et al. JAMA Neurol. 2018 Aug 6. doi: 10.1001/jamaneurol.2018.2109.

Superimposed relapses were associated with a significantly reduced risk of disability progression in a longitudinal, prospective cohort study of 1,419 multiple sclerosis patients (MS) of the progressive-onset type.

HUNG KUO CHUN/Thinkstock

SOURCE: Hughes J et al. JAMA Neurol. 2018 Aug 6. doi: 10.1001/jamaneurol.2018.2109.

Superimposed relapses were associated with a significantly reduced risk of disability progression in a longitudinal, prospective cohort study of 1,419 multiple sclerosis patients (MS) of the progressive-onset type.

HUNG KUO CHUN/Thinkstock

SOURCE: Hughes J et al. JAMA Neurol. 2018 Aug 6. doi: 10.1001/jamaneurol.2018.2109.

NASHVILLE—What guides decisions to start, stop, switch, or restart disease-modifying therapy (DMT) in patients with multiple sclerosis (MS)—particularly in the absence of extensive robust data? Because multiple treatment options exist, there is a higher bar for a DMT to be considered successful. Clinicians need to base individualized decisions on the best available evidence, according to a presentation at the 2018 CMSC Annual Meeting.

“We have practice guidelines, but unfortunately they are almost always out of date,” said Patricia K. Coyle, MD, Professor and Vice Chair of Clinical Affairs and Director of the MS Comprehensive Care Center at Stony Brook University Hospital in New York. “Guidelines have a lot of good things to say and several things that I would not quite agree with, but at least they are a helpful start. In the future, as we use cooperative studies, databases, and meaningful observations on large numbers of patients with MS to maximize our information and data, we will ultimately resolve all of these DMT debates.”

Starting Treatment

Controversies surrounding initiation of DMTs include whether to treat patients with radiologically isolated syndrome, when to start treating relapsing forms of MS that are not active, and, in patients with primary progressive MS, when the monoclonal agent ocrelizumab is appropriate. Current American Academy of Neurology (AAN) practice guidelines recommend both prescribing a DMT to patients with clinically isolated syndrome (CIS), patients with a first attack who have at least two MRI lesions characteristic of MS, and offering DMTs to patients with relapsing forms of MS and recent attacks or MRI activity.

The AAN recommendations stem from the benefits seen with early treatment, Dr. Coyle emphasized. “There may be a critical window of opportunity in treating early,” she said. “If MS involves accumulating permanent damage to the CNS, wouldn’t you want to stop or minimize that as quickly as possible—not wait until there has already been significant injury?” Virtually all studies comparing early versus delayed treatment support early treatment—and “age probably matters.”

In a 2017 meta-analysis of 38 clinical trials that assessed disability worsening and disease progression in a total population of 28,000 subjects with MS, the authors found that DMT efficacy and impact on disability fell with advancing age. The model created from this study predicted that none of the DMTs would be efficacious on disability in patients older than 53. Evidence also suggested that, after patients reached age 40.5, high-efficacy DMTs (eg, ocrelizumab, natalizumab) no longer outperformed lower-efficacy oral agents (fingolimod, teriflunomide, dimethyl fumarate) or injectables (interferon betas and glatiramer acetates).

While skeptical of this latter finding, Dr. Coyle termed it “provocative” because it demonstrates that patients should be treated at a younger age. “When MS declares itself, the disease has probably existed for years, damaging CNS tissue,” she said. Older age at onset probably means that the disease has been present but silent for a long period of time. In addition, CNS and brain reserve become increasingly impaired with age. “The older you are, in theory, the less CNS reserve you have.”

Stopping Treatment

Potential reasons for stopping DMT include relapsing MS or CIS that has been inactive for years; secondary progressive MS that is distant from the relapsing phase and now in a purely neurodegenerative one; age older than 60; and pregnancy.

Citing just a handful of studies in this area, Dr. Coyle pointed to the MSBase Registry of patients with relapsing MS who, on injectables, had no relapse for five years or more. Among 485 patients who stopped DMT versus 854 who continued treatment, time to relapse was similar but time to confirmed disability was shorter in those who stopped treatment. Those who stopped treatment also had an increased risk for entering the progressive stage. In another study of two cohorts who stopped DMT, 11.7% of patients with secondary progressive MS who were stable for two to 20 years, versus 58.8% of patients with relapsing MS, had acute disease within one to two years. The authors noted the secondary progressive MS cohort was older with higher EDSS scores. A retrospective review of patients with MS older than 60 who had been on DMT for more than two years showed that, of the 29.7% who stopped DMT, only one relapsed and just 10.7% reinitiated DMT.

“I would not stop a well-tolerated DMT in relapsing MS,” said Dr. Coyle. “I would continue DMT in CIS if patients were at high risk, even if they had had no disease activity for years. I would discuss stopping therapy in patients with secondary progressive MS who were older than 60, and in very debilitated patients with progressive MS.”

Switching DMTs

In terms of switching, a suboptimal response is likely magnified by delaying therapy, not matching patients well to their initial DMT, and not identifying poor response quickly,” said Dr. Coyle.

Reasons to switch include breakthrough activity—ie, the minimal evidence of disease activity (MEDA) or no evidence of disease activity (NEDA) target not met; MRI activity; poor tolerability; and abnormal laboratory data or clinical complications. Clinicians should consult the AAN practice guidelines for recommendations on when and which DMTs to switch.

Dr. Coyle again cited the MSBase Registry, in which three studies were conducted involving patients with MS who were on interferon beta or glatiramer acetate who had breakthrough attacks or disability. “In one study they switched them to another injectable or fingolimod,” she said. “They did better if they got to fingolimod. Another study involved switching to another injectable or natalizumab. They did better if they were on natalizumab. A third study looked at switching to fingolimod or natalizumab. They did better with natalizumab.”

Dr. Coyle observed that the first one to two years after initiating DMT may be the most important for determining whether a patient is doing well. “A DMT takes a few months to be fully operational,” she said. “If you are switching for breakthrough activity, you need to go to a higher-efficacy DMT. My treat-to target is not NEDA, it is MEDA.”

—Fred Balzac

Suggested Reading

Berkovich R. Clinical and MRI outcomes after stopping or switching disease-modifying therapy in stable MS patients: a case series report. Mult Scler Relat Disord. 2017;17:123-127.

Birnbaum G. Stopping disease-modifying therapy in nonrelapsing multiple sclerosis: experience from a clinical practice. Int J MS Care. 2017;19(1):11-14.

Coyle PK. Switching therapies in multiple sclerosis. CNS Drugs. 2013;27(4):239-247.

Hua LH, Fan TH, Conway D, et al. Discontinuation of disease-modifying therapy in patients with multiple sclerosis over age 60. Mult Scler. 2018 Mar 1 [Epub ahead of print].

Kappos L, Radue EW, Comi G, et al, for the TOFINGO study group. Switching from natalizumab to fingolimod: a randomized, placebo-controlled study in RRMS. Neurology. 2015;85(1):29-39.

Kister I, Spelman T, Alroughani R, et al, for the MSBase Study Group. Discontinuing disease-modifying therapy in MS after a prolonged relapse-free period: a propensity score-matched study. J Neurol Neurosurg Psychiatry. 2016;87(10):1133-1137.

Maillart E, Vidal JS, Brassat D, et al. Natalizumab-PML survivors with subsequent MS treatment: clinico-radiologic outcome. Neurol Neuroimmunol Neuroinflamm. 2017;4(3):e346.

Rae-Grant A, Day GS, Marrie RA, et al. Practice guideline recommendations summary: disease-modifying therapies for adults with multiple sclerosis: Report of the Guideline Development, Dissemination, and Implementation Subcommittee of the American Academy of Neurology. Neurology. 2018;90(17):777-788.

Weideman AM, Tapia-Maltos MA, Johnson K, et al. Meta-analysis of the age-dependent efficacy of multiple sclerosis treatments. Front Neurol. 2017;8:577.

NASHVILLE—What guides decisions to start, stop, switch, or restart disease-modifying therapy (DMT) in patients with multiple sclerosis (MS)—particularly in the absence of extensive robust data? Because multiple treatment options exist, there is a higher bar for a DMT to be considered successful. Clinicians need to base individualized decisions on the best available evidence, according to a presentation at the 2018 CMSC Annual Meeting.

“We have practice guidelines, but unfortunately they are almost always out of date,” said Patricia K. Coyle, MD, Professor and Vice Chair of Clinical Affairs and Director of the MS Comprehensive Care Center at Stony Brook University Hospital in New York. “Guidelines have a lot of good things to say and several things that I would not quite agree with, but at least they are a helpful start. In the future, as we use cooperative studies, databases, and meaningful observations on large numbers of patients with MS to maximize our information and data, we will ultimately resolve all of these DMT debates.”

Starting Treatment

Controversies surrounding initiation of DMTs include whether to treat patients with radiologically isolated syndrome, when to start treating relapsing forms of MS that are not active, and, in patients with primary progressive MS, when the monoclonal agent ocrelizumab is appropriate. Current American Academy of Neurology (AAN) practice guidelines recommend both prescribing a DMT to patients with clinically isolated syndrome (CIS), patients with a first attack who have at least two MRI lesions characteristic of MS, and offering DMTs to patients with relapsing forms of MS and recent attacks or MRI activity.

The AAN recommendations stem from the benefits seen with early treatment, Dr. Coyle emphasized. “There may be a critical window of opportunity in treating early,” she said. “If MS involves accumulating permanent damage to the CNS, wouldn’t you want to stop or minimize that as quickly as possible—not wait until there has already been significant injury?” Virtually all studies comparing early versus delayed treatment support early treatment—and “age probably matters.”

In a 2017 meta-analysis of 38 clinical trials that assessed disability worsening and disease progression in a total population of 28,000 subjects with MS, the authors found that DMT efficacy and impact on disability fell with advancing age. The model created from this study predicted that none of the DMTs would be efficacious on disability in patients older than 53. Evidence also suggested that, after patients reached age 40.5, high-efficacy DMTs (eg, ocrelizumab, natalizumab) no longer outperformed lower-efficacy oral agents (fingolimod, teriflunomide, dimethyl fumarate) or injectables (interferon betas and glatiramer acetates).

While skeptical of this latter finding, Dr. Coyle termed it “provocative” because it demonstrates that patients should be treated at a younger age. “When MS declares itself, the disease has probably existed for years, damaging CNS tissue,” she said. Older age at onset probably means that the disease has been present but silent for a long period of time. In addition, CNS and brain reserve become increasingly impaired with age. “The older you are, in theory, the less CNS reserve you have.”

Stopping Treatment

Potential reasons for stopping DMT include relapsing MS or CIS that has been inactive for years; secondary progressive MS that is distant from the relapsing phase and now in a purely neurodegenerative one; age older than 60; and pregnancy.

Citing just a handful of studies in this area, Dr. Coyle pointed to the MSBase Registry of patients with relapsing MS who, on injectables, had no relapse for five years or more. Among 485 patients who stopped DMT versus 854 who continued treatment, time to relapse was similar but time to confirmed disability was shorter in those who stopped treatment. Those who stopped treatment also had an increased risk for entering the progressive stage. In another study of two cohorts who stopped DMT, 11.7% of patients with secondary progressive MS who were stable for two to 20 years, versus 58.8% of patients with relapsing MS, had acute disease within one to two years. The authors noted the secondary progressive MS cohort was older with higher EDSS scores. A retrospective review of patients with MS older than 60 who had been on DMT for more than two years showed that, of the 29.7% who stopped DMT, only one relapsed and just 10.7% reinitiated DMT.

“I would not stop a well-tolerated DMT in relapsing MS,” said Dr. Coyle. “I would continue DMT in CIS if patients were at high risk, even if they had had no disease activity for years. I would discuss stopping therapy in patients with secondary progressive MS who were older than 60, and in very debilitated patients with progressive MS.”

Switching DMTs

In terms of switching, a suboptimal response is likely magnified by delaying therapy, not matching patients well to their initial DMT, and not identifying poor response quickly,” said Dr. Coyle.

Reasons to switch include breakthrough activity—ie, the minimal evidence of disease activity (MEDA) or no evidence of disease activity (NEDA) target not met; MRI activity; poor tolerability; and abnormal laboratory data or clinical complications. Clinicians should consult the AAN practice guidelines for recommendations on when and which DMTs to switch.

Dr. Coyle again cited the MSBase Registry, in which three studies were conducted involving patients with MS who were on interferon beta or glatiramer acetate who had breakthrough attacks or disability. “In one study they switched them to another injectable or fingolimod,” she said. “They did better if they got to fingolimod. Another study involved switching to another injectable or natalizumab. They did better if they were on natalizumab. A third study looked at switching to fingolimod or natalizumab. They did better with natalizumab.”

Dr. Coyle observed that the first one to two years after initiating DMT may be the most important for determining whether a patient is doing well. “A DMT takes a few months to be fully operational,” she said. “If you are switching for breakthrough activity, you need to go to a higher-efficacy DMT. My treat-to target is not NEDA, it is MEDA.”

—Fred Balzac

Suggested Reading

Berkovich R. Clinical and MRI outcomes after stopping or switching disease-modifying therapy in stable MS patients: a case series report. Mult Scler Relat Disord. 2017;17:123-127.

Birnbaum G. Stopping disease-modifying therapy in nonrelapsing multiple sclerosis: experience from a clinical practice. Int J MS Care. 2017;19(1):11-14.

Coyle PK. Switching therapies in multiple sclerosis. CNS Drugs. 2013;27(4):239-247.

Hua LH, Fan TH, Conway D, et al. Discontinuation of disease-modifying therapy in patients with multiple sclerosis over age 60. Mult Scler. 2018 Mar 1 [Epub ahead of print].

Kappos L, Radue EW, Comi G, et al, for the TOFINGO study group. Switching from natalizumab to fingolimod: a randomized, placebo-controlled study in RRMS. Neurology. 2015;85(1):29-39.

Kister I, Spelman T, Alroughani R, et al, for the MSBase Study Group. Discontinuing disease-modifying therapy in MS after a prolonged relapse-free period: a propensity score-matched study. J Neurol Neurosurg Psychiatry. 2016;87(10):1133-1137.

Maillart E, Vidal JS, Brassat D, et al. Natalizumab-PML survivors with subsequent MS treatment: clinico-radiologic outcome. Neurol Neuroimmunol Neuroinflamm. 2017;4(3):e346.

Rae-Grant A, Day GS, Marrie RA, et al. Practice guideline recommendations summary: disease-modifying therapies for adults with multiple sclerosis: Report of the Guideline Development, Dissemination, and Implementation Subcommittee of the American Academy of Neurology. Neurology. 2018;90(17):777-788.

Weideman AM, Tapia-Maltos MA, Johnson K, et al. Meta-analysis of the age-dependent efficacy of multiple sclerosis treatments. Front Neurol. 2017;8:577.

NASHVILLE—What guides decisions to start, stop, switch, or restart disease-modifying therapy (DMT) in patients with multiple sclerosis (MS)—particularly in the absence of extensive robust data? Because multiple treatment options exist, there is a higher bar for a DMT to be considered successful. Clinicians need to base individualized decisions on the best available evidence, according to a presentation at the 2018 CMSC Annual Meeting.

“We have practice guidelines, but unfortunately they are almost always out of date,” said Patricia K. Coyle, MD, Professor and Vice Chair of Clinical Affairs and Director of the MS Comprehensive Care Center at Stony Brook University Hospital in New York. “Guidelines have a lot of good things to say and several things that I would not quite agree with, but at least they are a helpful start. In the future, as we use cooperative studies, databases, and meaningful observations on large numbers of patients with MS to maximize our information and data, we will ultimately resolve all of these DMT debates.”

Starting Treatment

Controversies surrounding initiation of DMTs include whether to treat patients with radiologically isolated syndrome, when to start treating relapsing forms of MS that are not active, and, in patients with primary progressive MS, when the monoclonal agent ocrelizumab is appropriate. Current American Academy of Neurology (AAN) practice guidelines recommend both prescribing a DMT to patients with clinically isolated syndrome (CIS), patients with a first attack who have at least two MRI lesions characteristic of MS, and offering DMTs to patients with relapsing forms of MS and recent attacks or MRI activity.

The AAN recommendations stem from the benefits seen with early treatment, Dr. Coyle emphasized. “There may be a critical window of opportunity in treating early,” she said. “If MS involves accumulating permanent damage to the CNS, wouldn’t you want to stop or minimize that as quickly as possible—not wait until there has already been significant injury?” Virtually all studies comparing early versus delayed treatment support early treatment—and “age probably matters.”

In a 2017 meta-analysis of 38 clinical trials that assessed disability worsening and disease progression in a total population of 28,000 subjects with MS, the authors found that DMT efficacy and impact on disability fell with advancing age. The model created from this study predicted that none of the DMTs would be efficacious on disability in patients older than 53. Evidence also suggested that, after patients reached age 40.5, high-efficacy DMTs (eg, ocrelizumab, natalizumab) no longer outperformed lower-efficacy oral agents (fingolimod, teriflunomide, dimethyl fumarate) or injectables (interferon betas and glatiramer acetates).

While skeptical of this latter finding, Dr. Coyle termed it “provocative” because it demonstrates that patients should be treated at a younger age. “When MS declares itself, the disease has probably existed for years, damaging CNS tissue,” she said. Older age at onset probably means that the disease has been present but silent for a long period of time. In addition, CNS and brain reserve become increasingly impaired with age. “The older you are, in theory, the less CNS reserve you have.”

Stopping Treatment

Potential reasons for stopping DMT include relapsing MS or CIS that has been inactive for years; secondary progressive MS that is distant from the relapsing phase and now in a purely neurodegenerative one; age older than 60; and pregnancy.

Citing just a handful of studies in this area, Dr. Coyle pointed to the MSBase Registry of patients with relapsing MS who, on injectables, had no relapse for five years or more. Among 485 patients who stopped DMT versus 854 who continued treatment, time to relapse was similar but time to confirmed disability was shorter in those who stopped treatment. Those who stopped treatment also had an increased risk for entering the progressive stage. In another study of two cohorts who stopped DMT, 11.7% of patients with secondary progressive MS who were stable for two to 20 years, versus 58.8% of patients with relapsing MS, had acute disease within one to two years. The authors noted the secondary progressive MS cohort was older with higher EDSS scores. A retrospective review of patients with MS older than 60 who had been on DMT for more than two years showed that, of the 29.7% who stopped DMT, only one relapsed and just 10.7% reinitiated DMT.

“I would not stop a well-tolerated DMT in relapsing MS,” said Dr. Coyle. “I would continue DMT in CIS if patients were at high risk, even if they had had no disease activity for years. I would discuss stopping therapy in patients with secondary progressive MS who were older than 60, and in very debilitated patients with progressive MS.”

Switching DMTs

In terms of switching, a suboptimal response is likely magnified by delaying therapy, not matching patients well to their initial DMT, and not identifying poor response quickly,” said Dr. Coyle.

Reasons to switch include breakthrough activity—ie, the minimal evidence of disease activity (MEDA) or no evidence of disease activity (NEDA) target not met; MRI activity; poor tolerability; and abnormal laboratory data or clinical complications. Clinicians should consult the AAN practice guidelines for recommendations on when and which DMTs to switch.

Dr. Coyle again cited the MSBase Registry, in which three studies were conducted involving patients with MS who were on interferon beta or glatiramer acetate who had breakthrough attacks or disability. “In one study they switched them to another injectable or fingolimod,” she said. “They did better if they got to fingolimod. Another study involved switching to another injectable or natalizumab. They did better if they were on natalizumab. A third study looked at switching to fingolimod or natalizumab. They did better with natalizumab.”

Dr. Coyle observed that the first one to two years after initiating DMT may be the most important for determining whether a patient is doing well. “A DMT takes a few months to be fully operational,” she said. “If you are switching for breakthrough activity, you need to go to a higher-efficacy DMT. My treat-to target is not NEDA, it is MEDA.”

—Fred Balzac

Suggested Reading

Berkovich R. Clinical and MRI outcomes after stopping or switching disease-modifying therapy in stable MS patients: a case series report. Mult Scler Relat Disord. 2017;17:123-127.

Birnbaum G. Stopping disease-modifying therapy in nonrelapsing multiple sclerosis: experience from a clinical practice. Int J MS Care. 2017;19(1):11-14.

Coyle PK. Switching therapies in multiple sclerosis. CNS Drugs. 2013;27(4):239-247.

Hua LH, Fan TH, Conway D, et al. Discontinuation of disease-modifying therapy in patients with multiple sclerosis over age 60. Mult Scler. 2018 Mar 1 [Epub ahead of print].

Kappos L, Radue EW, Comi G, et al, for the TOFINGO study group. Switching from natalizumab to fingolimod: a randomized, placebo-controlled study in RRMS. Neurology. 2015;85(1):29-39.

Kister I, Spelman T, Alroughani R, et al, for the MSBase Study Group. Discontinuing disease-modifying therapy in MS after a prolonged relapse-free period: a propensity score-matched study. J Neurol Neurosurg Psychiatry. 2016;87(10):1133-1137.

Maillart E, Vidal JS, Brassat D, et al. Natalizumab-PML survivors with subsequent MS treatment: clinico-radiologic outcome. Neurol Neuroimmunol Neuroinflamm. 2017;4(3):e346.

Rae-Grant A, Day GS, Marrie RA, et al. Practice guideline recommendations summary: disease-modifying therapies for adults with multiple sclerosis: Report of the Guideline Development, Dissemination, and Implementation Subcommittee of the American Academy of Neurology. Neurology. 2018;90(17):777-788.

Weideman AM, Tapia-Maltos MA, Johnson K, et al. Meta-analysis of the age-dependent efficacy of multiple sclerosis treatments. Front Neurol. 2017;8:577.

LOS ANGELES – The commercially available Fitbit Flex accelerometer proved useful and feasible for longitudinal measurement of average daily steps in a prospective, 1-year study of patients with multiple sclerosis.

The wrist-worn device was well received, with 79 of 96 participants (82%) completing follow-up, and it revealed changes in daily functioning that were not captured using more traditional disability metrics, Valerie J. Block, DPTSc, reported at the annual meeting of the American Academy of Neurology.

The study involved 61 adults with relapsing multiple sclerosis (MS) and 35 with progressive MS who were recruited into the University of California, San Francisco (UCSF) FITriMS cohort. All were able to walk at least 2 minutes at baseline, and their daily physical activity was recorded continuously by the device over 1 year. Performance-based measures, including the Expanded Disability Status Scale (EDSS) and timed 25-foot walk test, were evaluated at baseline and at 1 year, and patient-reported outcomes such as the 12-item MS walking scale were completed at baseline and at 1.5, 3, 6, 9, and 12 months. Nine patients withdrew, and eight were lost to follow-up.

“This was a fairly stable, actively treated cohort, and overall, there was no significant change in average daily steps (STEPS) over 1 year. However, there was a trend toward a decrease (–315 steps/day; P = .117), and 53% of patients had a decrease of more than 800 steps per day, which is a proposed minimal clinically important difference threshold,” Dr. Block, a postdoctoral scholar at UCSF, said in an interview.

Despite the modest, gradual reduction in STEPS over the year, most participants were able to complete the study, providing at least 1 valid week of STEPS data per month throughout the year, she said, noting that there was no difference in device use between relapsing MS and progressive MS participants.

A significant association between decreasing STEPS and worsening of clinic-based and patient-reported outcomes was demonstrated, but declining STEPS occurred even when disability levels, as measured by the EDSS, remained stable.

“Participants who started off the study with lower STEPS, below the cohort median of 4,766 STEPS, had fourfold higher odds of clinically-meaningful disability worsening at 1 year after adjusting for age, sex, and disease duration,” she said.

Further, earlier data published by Dr. Block and her colleagues showed there is wide variability in the change in steps over 1 year. In that study, the change in step count in patients whose EDSS score remained unchanged ranged from +814 to –3,718, suggesting that popular mainstream wearable technology is not only feasible but also can provide a more detailed and nuanced measure of how patients are functioning in their daily lives, she said.

Together, these findings suggest that remote accelerometry provides useful continuous information about physical activity in real-world setting, she said, concluding that “these results support the possibility of using STEPS as a more sensitive and granular outcome measure in clinical trials and for targeted interventions in clinical care.”

This study was supported by the National Center for Advancing Translational Sciences. Dr. Block reported having no disclosures.

[email protected]

SOURCE: Block VJ et al. Neurology. 2018 Apr 10;90(15 Suppl):N5.001.

LOS ANGELES – The commercially available Fitbit Flex accelerometer proved useful and feasible for longitudinal measurement of average daily steps in a prospective, 1-year study of patients with multiple sclerosis.

The wrist-worn device was well received, with 79 of 96 participants (82%) completing follow-up, and it revealed changes in daily functioning that were not captured using more traditional disability metrics, Valerie J. Block, DPTSc, reported at the annual meeting of the American Academy of Neurology.

The study involved 61 adults with relapsing multiple sclerosis (MS) and 35 with progressive MS who were recruited into the University of California, San Francisco (UCSF) FITriMS cohort. All were able to walk at least 2 minutes at baseline, and their daily physical activity was recorded continuously by the device over 1 year. Performance-based measures, including the Expanded Disability Status Scale (EDSS) and timed 25-foot walk test, were evaluated at baseline and at 1 year, and patient-reported outcomes such as the 12-item MS walking scale were completed at baseline and at 1.5, 3, 6, 9, and 12 months. Nine patients withdrew, and eight were lost to follow-up.

“This was a fairly stable, actively treated cohort, and overall, there was no significant change in average daily steps (STEPS) over 1 year. However, there was a trend toward a decrease (–315 steps/day; P = .117), and 53% of patients had a decrease of more than 800 steps per day, which is a proposed minimal clinically important difference threshold,” Dr. Block, a postdoctoral scholar at UCSF, said in an interview.

Despite the modest, gradual reduction in STEPS over the year, most participants were able to complete the study, providing at least 1 valid week of STEPS data per month throughout the year, she said, noting that there was no difference in device use between relapsing MS and progressive MS participants.

A significant association between decreasing STEPS and worsening of clinic-based and patient-reported outcomes was demonstrated, but declining STEPS occurred even when disability levels, as measured by the EDSS, remained stable.

“Participants who started off the study with lower STEPS, below the cohort median of 4,766 STEPS, had fourfold higher odds of clinically-meaningful disability worsening at 1 year after adjusting for age, sex, and disease duration,” she said.

Further, earlier data published by Dr. Block and her colleagues showed there is wide variability in the change in steps over 1 year. In that study, the change in step count in patients whose EDSS score remained unchanged ranged from +814 to –3,718, suggesting that popular mainstream wearable technology is not only feasible but also can provide a more detailed and nuanced measure of how patients are functioning in their daily lives, she said.

Together, these findings suggest that remote accelerometry provides useful continuous information about physical activity in real-world setting, she said, concluding that “these results support the possibility of using STEPS as a more sensitive and granular outcome measure in clinical trials and for targeted interventions in clinical care.”

This study was supported by the National Center for Advancing Translational Sciences. Dr. Block reported having no disclosures.

[email protected]

SOURCE: Block VJ et al. Neurology. 2018 Apr 10;90(15 Suppl):N5.001.

LOS ANGELES – The commercially available Fitbit Flex accelerometer proved useful and feasible for longitudinal measurement of average daily steps in a prospective, 1-year study of patients with multiple sclerosis.

The wrist-worn device was well received, with 79 of 96 participants (82%) completing follow-up, and it revealed changes in daily functioning that were not captured using more traditional disability metrics, Valerie J. Block, DPTSc, reported at the annual meeting of the American Academy of Neurology.

The study involved 61 adults with relapsing multiple sclerosis (MS) and 35 with progressive MS who were recruited into the University of California, San Francisco (UCSF) FITriMS cohort. All were able to walk at least 2 minutes at baseline, and their daily physical activity was recorded continuously by the device over 1 year. Performance-based measures, including the Expanded Disability Status Scale (EDSS) and timed 25-foot walk test, were evaluated at baseline and at 1 year, and patient-reported outcomes such as the 12-item MS walking scale were completed at baseline and at 1.5, 3, 6, 9, and 12 months. Nine patients withdrew, and eight were lost to follow-up.

“This was a fairly stable, actively treated cohort, and overall, there was no significant change in average daily steps (STEPS) over 1 year. However, there was a trend toward a decrease (–315 steps/day; P = .117), and 53% of patients had a decrease of more than 800 steps per day, which is a proposed minimal clinically important difference threshold,” Dr. Block, a postdoctoral scholar at UCSF, said in an interview.

Despite the modest, gradual reduction in STEPS over the year, most participants were able to complete the study, providing at least 1 valid week of STEPS data per month throughout the year, she said, noting that there was no difference in device use between relapsing MS and progressive MS participants.

A significant association between decreasing STEPS and worsening of clinic-based and patient-reported outcomes was demonstrated, but declining STEPS occurred even when disability levels, as measured by the EDSS, remained stable.

“Participants who started off the study with lower STEPS, below the cohort median of 4,766 STEPS, had fourfold higher odds of clinically-meaningful disability worsening at 1 year after adjusting for age, sex, and disease duration,” she said.

Further, earlier data published by Dr. Block and her colleagues showed there is wide variability in the change in steps over 1 year. In that study, the change in step count in patients whose EDSS score remained unchanged ranged from +814 to –3,718, suggesting that popular mainstream wearable technology is not only feasible but also can provide a more detailed and nuanced measure of how patients are functioning in their daily lives, she said.

Together, these findings suggest that remote accelerometry provides useful continuous information about physical activity in real-world setting, she said, concluding that “these results support the possibility of using STEPS as a more sensitive and granular outcome measure in clinical trials and for targeted interventions in clinical care.”

This study was supported by the National Center for Advancing Translational Sciences. Dr. Block reported having no disclosures.

[email protected]

SOURCE: Block VJ et al. Neurology. 2018 Apr 10;90(15 Suppl):N5.001.