Overview Biologic Basis for Multiple Sclerosis Disease Progression in RRMS Patients Treated With Gilenya Status: Completed Trial end date: 2018-10-30 Target enrollment: Participant gender: Summary This study will determine whether in RRMS patients receiving Gilenya there is a link between disease progression and biologic markers. Details Lead Sponsor: McGill UniversityCollaborator: NovartisTreatments: Fingolimod Hydrochloride