{"nct_id":"NCT03507686","title":"A Safety Study of Retinal Gene Therapy for Choroideremia With Administration of BIIB111","status":"COMPLETED","status_verified_date":"2023-08","start_date":"2017-11-29","start_date_type":"ACTUAL","primary_completion_date":"2022-06-29","primary_completion_date_type":"ACTUAL","completion_date":"2022-06-29","completion_date_type":"ACTUAL","phases":["PHASE2"],"tickers":["BIIB"]}