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Abstract Details

Natalizumab Reduces Serum Concentrations of Neurofilament Light Chain in Secondary Progressive Multiple Sclerosis Patients From the Phase 3 ASCEND Study
Multiple Sclerosis
S12 - Progressive Multiple Sclerosis (2:17 PM-2:28 PM)
008

sNfL is a promising biomarker of disease activity and treatment response in relapsing-remitting multiple sclerosis (RRMS). The role of sNfL as a biomarker in SPMS is not well understood. ASCEND was a Phase 3 study of natalizumab in individuals with SPMS for ≥2 years.

To evaluate the associations of serum neurofilament light chain (sNfL) concentrations and disease activity, disability progression and response to natalizumab treatment in participants with secondary progressive multiple sclerosis (SPMS).

sNfL concentrations were measured using SIMOA NF-light® Advantage Kit (Quanterix) at baseline, week 48, and week 96 in 748 participants (natalizumab/n=379, placebo/n=365) from ASCEND. Statistical analyses included Spearman correlation, mixed model for repeated measure, and ANCOVA.

Baseline sNfL concentrations were associated (p<0.0001) with number of Gd+ lesions, T2 lesion volume, Timed 25-Foot Walk time (T25FW), 9-Hole Peg Test time (9HPT) at baseline, and brain atrophy over 96 weeks. At week 96, sNfL concentrations were significantly higher in participants with progression [defined using EDSS (p<0.01), T25FW (p<0.05), or 9HPT (p<0.01)], compared to those without progression during the study. sNfL concentrations at weeks 48 and 96 were significantly lower in natalizumab versus placebo participants (ratio 0.84/95% CI [0.79, 0.89], p<0.001 and ratio 0.80/95% CI [0.7, 0.85], p<0.001, respectively); statistically significant sNfL differences were observed in participants with and without Gd+ lesions at baseline, relapses in 2 years before study enrollment and inflammatory activity (Gd+ lesions, new T2 lesions or relapse) during the study. Data on natalizumab response stratified by NfL concentrations will be presented. 

Similar to observations in RRMS, baseline sNfL in SPMS participants was associated with baseline disease activity measures and future brain atrophy rates. Natalizumab reduced sNfL versus placebo in SPMS participants with/without acute inflammation. These findings suggest that sNfL may reflect both acute inflammation-driven neuro-axonal damage and chronic neurodegeneration in MS.

Authors/Disclosures
Hans-Peter Hartung, MD, FAAN (Heinrich Heine University Medical Faculty)
PRESENTER
Dr. Hartung has received personal compensation in the range of $500-$4,999 for serving as a Consultant for BMS Celgene. Dr. Hartung has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Geneuro. Dr. Hartung has received personal compensation in the range of $5,000-$9,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Novartis. Dr. Hartung has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Novartis. Dr. Hartung has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Merck. Dr. Hartung has received personal compensation in the range of $5,000-$9,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Bayer. Dr. Hartung has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for TG Therapeutics. Dr. Hartung has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Roche. Dr. Hartung has received personal compensation in the range of $500-$4,999 for serving as an Editor, Associate Editor, or Editorial Advisory Board Member for Frontiers Neurology.
Raju Kapoor, MD No disclosure on file
Finn Sellebjerg, MD (Copenhagen University Hospital Rigshospitalet) Dr. Sellebjerg has received personal compensation for serving as an employee of Danish Multiple Sclerosis Society. Dr. Sellebjerg has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Novartis. Dr. Sellebjerg has received personal compensation in the range of $5,000-$9,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Biogen. Dr. Sellebjerg has received personal compensation in the range of $5,000-$9,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Novartis. Dr. Sellebjerg has received personal compensation in the range of $5,000-$9,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Roche. Dr. Sellebjerg has received personal compensation in the range of $5,000-$9,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Sanofi Genzyme. Dr. Sellebjerg has received personal compensation in the range of $500-$4,999 for serving on a Speakers Bureau for Biogen. Dr. Sellebjerg has received personal compensation in the range of $500-$4,999 for serving on a Speakers Bureau for Roche. Dr. Sellebjerg has received personal compensation in the range of $500-$4,999 for serving on a Speakers Bureau for Novartis. Dr. Sellebjerg has received personal compensation in the range of $500-$4,999 for serving as an officer or member of the Board of Directors for Gangsted Foundation. Dr. Sellebjerg has received personal compensation in the range of $500-$4,999 for serving as an officer or member of the Board of Directors for Warwara Larsen Foundation. The institution of Dr. Sellebjerg has received research support from Biogen. The institution of Dr. Sellebjerg has received research support from Merck. The institution of Dr. Sellebjerg has received research support from Novartis. The institution of Dr. Sellebjerg has received research support from Sanofi Genzyme. Dr. Sellebjerg has received publishing royalties from a publication relating to health care.
Douglas L. Arnold, MD, FAAN (Montreal Neurological Institute, McGill Univ) Dr. Arnold has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Biogen. Dr. Arnold has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for BMS. Dr. Arnold has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Frequency Therapeutics. Dr. Arnold has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Merck. Dr. Arnold has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Novartis. Dr. Arnold has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Roche. Dr. Arnold has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Sanofi. Dr. Arnold has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Shionogi. Dr. Arnold has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Xfacto communications. Dr. Arnold has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Eli Lilly. Dr. Arnold has received personal compensation in the range of $500-$4,999 for serving as a Consultant for EMD Serono. Dr. Arnold has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Biohaven. Dr. Arnold has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Find therapeutics. Dr. Arnold has received personal compensation in the range of $500-$4,999 for serving as a Consultant for GSK. Dr. Arnold has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Idorsia. Dr. Arnold has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Kiniksa. Dr. Arnold has stock in NeuroRx.
Mark S. Freedman, MD, FAAN (University of Ottawa) Dr. Freedman has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Actelion(Janssen/J&J). Dr. Freedman has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Alexion. Dr. Freedman has received personal compensation in the range of $500-$4,999 for serving as a Consultant for BiogenIdec. Dr. Freedman has received personal compensation in the range of $500-$4,999 for serving as a Consultant for BMS/Celgene. Dr. Freedman has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for EMD Inc. Dr. Freedman has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Sanofi-Genzyme. Dr. Freedman has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Roche. Dr. Freedman has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Novartis. Dr. Freedman has received personal compensation in the range of $0-$499 for serving on a Scientific Advisory or Data Safety Monitoring board for Actelion (Janssen/J&J). Dr. Freedman has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Alexion. Dr. Freedman has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Atara Biotherapeutics. Dr. Freedman has received personal compensation in the range of $0-$499 for serving on a Scientific Advisory or Data Safety Monitoring board for Bayer Healthcare. Dr. Freedman has received personal compensation in the range of $0-$499 for serving on a Scientific Advisory or Data Safety Monitoring board for BiogenIdec. Dr. Freedman has received personal compensation in the range of $0-$499 for serving on a Scientific Advisory or Data Safety Monitoring board for Clene Nanomedicine. Dr. Freedman has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for GRI Bio. Dr. Freedman has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Roche. Dr. Freedman has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Magenta Therapeutics. Dr. Freedman has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Merck Serono. Dr. Freedman has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Novartis. Dr. Freedman has received personal compensation in the range of $5,000-$9,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Sanofi Genzyme. Dr. Freedman has received personal compensation in the range of $10,000-$49,999 for serving on a Speakers Bureau for Sanofi Genzyme. Dr. Freedman has received personal compensation in the range of $10,000-$49,999 for serving on a Speakers Bureau for EMD Serono. The institution of Dr. Freedman has received research support from Sanofi Genzyme.
Douglas R. Jeffery, MD, PhD (Lake Norman Neurology At Piedmont Health Care) No disclosure on file
Aaron E. Miller, MD, FAAN (Mt Sinai School Of Med) Dr. Miller has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Accordant Health Services (Caremark). Dr. Miller has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Corevitas (formerly known as Corrona). Dr. Miller has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for MAPI=Pharma. Dr. Miller has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Viatris (Mylan). Dr. Miller has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Guidepoint Global. Dr. Miller has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Gerson Lehrman Group. Dr. Miller has received personal compensation in the range of $10,000-$49,999 for serving on a Speakers Bureau for Biogen Idec. Dr. Miller has received personal compensation in the range of $5,000-$9,999 for serving on a Speakers Bureau for Alexion. Dr. Miller has received personal compensation in the range of $10,000-$49,999 for serving on a Speakers Bureau for Amgen (Horizon Therapeutics). Dr. Miller has received personal compensation in the range of $50,000-$99,999 for serving as an Expert Witness for Sterne Kessler. Dr. Miller has received publishing royalties from a publication relating to health care.
Keith R. Edwards, MD, FAAN (MS Center of Northeastern New York) No disclosure on file
No disclosure on file
Ih Chang Ih Chang has received personal compensation for serving as an employee of Cerevel. Ih Chang has received stock or an ownership interest from Cerevel Therapeutics.
No disclosure on file
Dipen P. Sangurdekar, PhD No disclosure on file
Bing Zhu Bing Zhu has received personal compensation for serving as an employee of Biogen. Bing Zhu has received stock or an ownership interest from Biogen.
Devangi S. Mehta, PhD (Biogen) No disclosure on file
Pei-Ran Ho No disclosure on file
Nolan Campbell Nolan Campbell has received personal compensation for serving as an employee of Biogen. Nolan Campbell has stock in Biogen.
Michael R. Edwards, PhD (Ionis) No disclosure on file
Elizabeth Fisher Elizabeth Fisher has received personal compensation for serving as an employee of Biogen. Elizabeth Fisher has stock in Biogen. Elizabeth Fisher has received intellectual property interests from a discovery or technology relating to health care.
Bernd C. Kieseier, MD (Novartis) Dr. Kieseier has received personal compensation for serving as an employee of Novartis. Dr. Kieseier has stock in Novartis.
Richard A. Rudick, MD, FAAN (Optimal Brain Health Consultants) Dr. Rudick has received personal compensation for serving as an employee of Biogen. Dr. Rudick has received stock or an ownership interest from Biogen. Dr. Rudick has received publishing royalties from a publication relating to health care.
Tatiana Plavina, PhD No disclosure on file