{"nct_id":"NCT03116113","title":"A Clinical Trial of Retinal Gene Therapy for X-linked Retinitis Pigmentosa Using BIIB112","status":"COMPLETED","status_verified_date":"2023-12","start_date":"2017-03-08","start_date_type":"ACTUAL","primary_completion_date":"2020-11-18","primary_completion_date_type":"ACTUAL","completion_date":"2020-11-18","completion_date_type":"ACTUAL","phases":["PHASE1","PHASE2"],"tickers":["BIIB"]}