{"nct_id":"NCT03745287","title":"A Safety and Efficacy Study Evaluating CTX001 in Subjects With Severe Sickle Cell Disease","status":"COMPLETED","status_verified_date":"2025-08","start_date":"2018-11-27","start_date_type":"ACTUAL","primary_completion_date":"2025-07-07","primary_completion_date_type":"ACTUAL","completion_date":"2025-07-07","completion_date_type":"ACTUAL","phases":["PHASE2","PHASE3"],"tickers":["VRTX"]}