{"nct_id":"NCT03130959","title":"A Study to Evaluate the Safety and Efficacy of Nivolumab Monotherapy and Nivolumab in Combination With Ipilimumab in Pediatric Participants With High Grade Primary Central Nervous System (CNS) Malignancies","status":"COMPLETED","status_verified_date":"2022-07","start_date":"2017-06-12","start_date_type":"ACTUAL","primary_completion_date":"2020-03-10","primary_completion_date_type":"ACTUAL","completion_date":"2022-01-17","completion_date_type":"ACTUAL","phases":["PHASE2"],"tickers":["BMY"]}