{"nct_id":"NCT02999906","title":"Study to Compare Triple Therapy (Oral Treprostinil, Ambrisentan, and Tadalafil) With Dual Therapy (Ambrisentan, Tadalafil, and Placebo) in Subjects With Pulmonary Arterial Hypertension","status":"WITHDRAWN","status_verified_date":"2017-10","start_date":"2017-10","start_date_type":"ESTIMATED","primary_completion_date":"2021-12","primary_completion_date_type":"ESTIMATED","completion_date":"2022-06","completion_date_type":"ESTIMATED","phases":["PHASE3"],"tickers":["UNH"]}