A Randomized, Open-label, Parallel-group, Non-inferiority Study Comparing Efficacy, Safety, and Tolerability of Remibrutinib After Switching From Ocrelizumab in Participants Living With Relapsing Multiple Sclerosis, Followed by Open-label Treatment With Remibrutinib

The study is a randomized, open-label, non-inferiority multi-center, Phase 3b study to provide efficacy, safety, and tolerability data for remibrutinib after switching from ocrelizumab and in comparison to continuous ocrelizumab in plwRMS. This study consists of an initial Core Part (CP) (maximum duration per participant of up to 24 months), followed by an Extension Part (EP) (of up to 24 months duration) for eligible participants. All participants completing the 24-month treatment of the Core Part of the study may be eligible to continue in the Extension Part, an open-label, single-arm, fix…