{"nct_id":"NCT04494256","title":"A Study to Assess the Safety, Tolerability, and Effect on Disease Progression of BIIB105 in Participants With Amyotrophic Lateral Sclerosis (ALS) and Participants With the ALS Ataxin-2 (ATXN2) Genetic Mutation","status":"TERMINATED","status_verified_date":"2025-09","start_date":"2020-09-28","start_date_type":"ACTUAL","primary_completion_date":"2024-08-13","primary_completion_date_type":"ACTUAL","completion_date":"2024-08-13","completion_date_type":"ACTUAL","phases":["PHASE1","PHASE2"],"tickers":["BIIB"]}