ARTICLE CLASS OF EVIDENCE Siponimod and Cognition in Secondary Progressive Multiple Sclerosis EXPAND Secondary Analyses Ralph H.B. Benedict, PhD, Davorka Tomic, MD, Bruce A. Cree, MD, Robert Fox, MD, Gavin Giovannoni, MD, Correspondence Amit Bar-Or, MD, Ralf Gold, MD, Patrick Vermersch, MD, Harald Pohlmann, MSc, Ian Wright, PhD, Dr. Benedict Goril¨ Karlsson, MD, Frank Dahlke, MD, Christian Wolf, MD, and Ludwig Kappos, MD
[email protected] Neurology® 2021;96:e376-e386. doi:10.1212/WNL.0000000000011275 Abstract RELATED ARTICLE Objective Editorial To investigate the effects of siponimod on cognitive processing speed in patients with secondary Siponimod for Cognition progressive (SP) multiple sclerosis (MS), by means of a predefined exploratory and post hoc analysis of in Secondary Progressive the Exploring the Efficacy and Safety of Siponimod in Patients With Secondary Progressive Multiple Multiple Sclerosis: Thinking Through the Sclerosis (EXPAND) study, a randomized controlled trial comparing siponimod and placebo. Evidence Methods Page 91 EXPAND was a double-blind, placebo-controlled phase 3 trial involving 1,651 patients with SPMS randomized (2:1) to either siponimod 2 mg/d or placebo. Cognitive function was MORE ONLINE assessed with the Symbol Digit Modalities Test (SDMT), Paced Auditory Serial Addition Test Class of Evidence (PASAT), and Brief Visuospatial Memory Test–Revised (BVMT-R) administered at baseline, Criteria for rating 6-month intervals, and end of treatment. therapeutic and diagnostic studies Results NPub.org/coe Between-group differences in mean change from baseline in SDMT scores were significantly better in siponimod- vs placebo-treated patients at month 12 (difference 1.08 [95% confidence interval 0.23–1.94]; p = 0.0132), month 18 (1.23 [0.25–2.21); p = 0.0135), and month 24 (2.30 [1.11–3.50]; p = 0.0002).