{"nct_id":"NCT03070119","title":"Long-Term Evaluation of BIIB067 (Tofersen)","status":"COMPLETED","status_verified_date":"2025-08","start_date":"2017-03-08","start_date_type":"ACTUAL","primary_completion_date":"2024-08-12","primary_completion_date_type":"ACTUAL","completion_date":"2024-08-12","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["BIIB"]}