{"nct_id":"NCT00430716","title":"To Assess The Efficacy and Safety Of Oral Sildenafil in the Treatment of Pulmonary Arterial Hypertension.","status":"TERMINATED","status_verified_date":"2020-12","start_date":"2008-04-08","start_date_type":"ACTUAL","primary_completion_date":"2010-05-25","primary_completion_date_type":"ACTUAL","completion_date":"2010-05-25","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["PFE"]}