A Study to Evaluate the Efficacy and Safety of Remibrutinib in Secondary Progressive Multiple Sclerosis

This is a Phase III, randomized, double-blind, placebo-controlled, multi-center, parallel-group, event-driven study to evaluate the efficacy, safety and tolerability of remibrutinib in SPMS patients. Approximately 1275 eligible participants will be randomized to receive either remibrutinib or matching placebo. The study consists of an event-driven Core Part with double-blind treatment, followed by an Extension Part with open-label remibrutinib treatment.