{"nct_id":"NCT04856982","title":"A Study of BIIB067 (Tofersen) Initiated in Clinically Presymptomatic Adults With a Confirmed Superoxide Dismutase 1 Mutation","status":"ACTIVE_NOT_RECRUITING","status_verified_date":"2025-03","start_date":"2021-05-17","start_date_type":"ACTUAL","primary_completion_date":"2027-08-07","primary_completion_date_type":"ESTIMATED","completion_date":"2027-08-07","completion_date_type":"ESTIMATED","phases":["PHASE3"],"tickers":["BIIB"]}