{"nct_id":"NCT03747341","title":"Buprenorphine-Fentanyl Interaction Study","status":"COMPLETED","status_verified_date":"2025-03","start_date":"2018-03-22","start_date_type":"ACTUAL","primary_completion_date":"2019-01-04","primary_completion_date_type":"ACTUAL","completion_date":"2019-01-04","completion_date_type":"ACTUAL","phases":["PHASE1"],"tickers":["INDV"]}