RecruitingPhase 3Biological interventionLong-term Follow-up of Patients With Spinal Muscular Atrophy Treated With OAV101 in Clinical TrialsThis is a global, prospective, multi-center study that is designed to assess the long-term safety and efficacy of OAV101 in patients who participated in an OAV101 clinical trial. The assessments of safety and efficacy in Study COAV101A12308 will continue for 5 years after enrollment in this study.