Abstract Details

Title Clinical and Neuroradiologic Efficacy of BG-12 (Dimethyl Fumarate) in US Patients with Relapsing-Remitting Multiple Sclerosis (RRMS): An Integrated Analysis of the Phase 3 DEFINE and CONFIRM Studies

Topic MS and Related Diseases

Presentation(s) P07 - (-)

Poster/Presentation
Number 091

Objective

Background BACKGROUND: In the Phase 3 DEFINE and CONFIRM studies, dimethyl fumarate demonstrated both clinical and neuroradiologic efficacy in patients with RRMS. A pre-specified integrated analysis plan, which included analysis by region, was conducted to obtain more precise estimates of treatment effect than each study in isolation.

Design/Methods DESIGN/METHODS: Eligibility criteria included age 18-55 years, RRMS diagnosis (McDonald criteria) and Expanded Disability Status Scale score 0-5.0. Treated patients randomized to dimethyl fumarate 240 mg twice (BID) or three times daily (TID) or placebo were included in the integrated analysis. Primary endpoints were proportion of patients relapsed (DEFINE) and annualized relapse rate (ARR; CONFIRM) at 2 years.

Results RESULTS: The integrated intent-to-treat population comprised 2,301 patients. Of these, 403 US patients were assigned to placebo (n=137), or dimethyl fumarate BID (n=130) or TID (n=136), including 193 patients in the MRI cohort: placebo (n=68), BID (n=60) or TID (n=65). Baseline characteristics and treatment effects were consistent between studies. Patients in three assessed regions were comparable in baseline characteristics except that more patients were MS treatment-naive in the Eastern European (71%) than US (33%) or Western European (45%) regions. In the US population, at 2 years dimethyl fumarate reduced ARR versus placebo by 44% (BID; rate ratio 0.56 [95% CI 0.33-0.96]) and 27% (TID; 0.73 [0.44-1.21]), and the proportion of patients relapsed by 42% (BID; 0.58 [0.34-0.98]) and 40% (TID; 0.60 [0.36-0.99]). Similarly, at 2 years dimethyl fumarate consistently reduced the number of gadolinium-enhancing, new/enlarging T2 hyperintense and new T1 hypointense MRI lesions compared with placebo.

Conclusions CONCLUSIONS: These results demonstrate that US patients participating in the Phase 3 studies derived clinical and neuroradiologic benefit with dimethyl fumarate treatment relative to placebo.

Authors/Disclosures
Mariko Kita, MD (Virginia Mason Medical Center - Neurosciences Institute) PRESENTER	No disclosure on file
Robert J. Fox, MD, FAAN (Cleveland Clinic)	Dr. Fox has received personal compensation in the range of $500-$4,999 for serving as a Consultant for AB Science. Dr. Fox has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Biogen. Dr. Fox has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for BMS. Dr. Fox has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for EMD Serono. Dr. Fox has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Genentech. Dr. Fox has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Immunic. Dr. Fox has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Novartis. Dr. Fox has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Sanofi. Dr. Fox has received personal compensation in the range of $500-$4,999 for serving as a Consultant for TG Therapeutics. Dr. Fox has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Siemens. Dr. Fox has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Roche. Dr. Fox has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Astoria Biologica. Dr. Fox has received personal compensation in the range of $500-$4,999 for serving as a Consultant for InnoCare Pharma. Dr. Fox 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. Fox has received personal compensation in the range of $5,000-$9,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Immunic. Dr. Fox 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. Fox has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for AB Science. Dr. Fox 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. Dr. Fox has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for BMS. The institution of Dr. Fox has received research support from National Institutes of Health. The institution of Dr. Fox has received research support from National MS Society. Dr. Fox has received publishing royalties from a publication relating to health care.
Timm Oberwahrenbrock, PhD	No disclosure on file
J. Theodore Phillips, MD, PhD, FAAN	No disclosure on file
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 received personal compensation in the range of $100,000-$499,999 for serving as a Consultant for Clario.
Amit Bar-Or, MD, FRCPC (University of Pennsylvania)	Dr. Bar-Or has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Roche Genentech. Dr. Bar-Or has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Novartis. Dr. Bar-Or has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Biogen. Dr. Bar-Or has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Merk/EMD Serono. Dr. Bar-Or has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Sanofi-Genzyme. Dr. Bar-Or has received personal compensation in the range of $500-$4,999 for serving as a Consultant for cabaletta. Dr. Bar-Or has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Roche/Genentech. Dr. Bar-Or 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. Bar-Or has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Merck/EMD Serono. Dr. Bar-Or has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Sanofi/Genzyme. The institution of Dr. Bar-Or has received research support from Novartis. The institution of Dr. Bar-Or has received research support from Biogen. The institution of Dr. Bar-Or has received research support from Roche/Genentech.
Minhua Yang	No disclosure on file
	No disclosure on file
Katherine T. Dawson, MD (Biogen)	No disclosure on file
Vissia Viglietta, MD	No disclosure on file
Sarah I. Sheikh, BM Bch, MSc, MRCP, FAAN	Dr. Sheikh has received personal compensation for serving as an employee of Takeda.
Ralf Gold, MD (Neurologische Universitaetsklinik)	Dr. Gold has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Biogen . Dr. Gold has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Novartis. Dr. Gold has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Roche. Dr. Gold has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Genzyme. Dr. Gold has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Bayer Vital. Dr. Gold has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Eisai Pharamaceuticals. Dr. Gold has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Biogen. Dr. Gold 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. Gold has received personal compensation in the range of $10,000-$49,999 for serving as an Editor, Associate Editor, or Editorial Advisory Board Member for SAGE Publishers. Dr. Gold has received personal compensation in the range of $500-$4,999 for serving as an Expert Witness for Novartis. Dr. Gold has received personal compensation in the range of $500-$4,999 for serving as an Expert Witness for Biogen. The institution of Dr. Gold has received research support from Novartis. The institution of Dr. Gold has received research support from Biogen.

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