{"nct_id":"NCT03655678","title":"A Safety and Efficacy Study Evaluating CTX001 in Participants With Transfusion-Dependent β-Thalassemia","status":"ACTIVE_NOT_RECRUITING","status_verified_date":"2025-09","start_date":"2018-09-14","start_date_type":"ACTUAL","primary_completion_date":"2025-12-08","primary_completion_date_type":"ESTIMATED","completion_date":"2025-12-08","completion_date_type":"ESTIMATED","phases":["PHASE2","PHASE3"],"tickers":["VRTX"]}