Swiss Study of the Impact of Mayzent on SPMS Patients in a Long-term Non-interventional Study

Primary data will be collected during an observational period of three years of Siponimod treatment. Additionally, medical history of participants will be collected including EDSS, MRI outcomes, relapses and previous medication to allow the estimation of Siponimod treatment effects on an individual basis. It is planned to include an optional blood draw for a later biomarker analysis.