{"nct_id":"NCT00878878","title":"Evaluate Effect of Optison on Pulmonary Artery Systolic Pressure (PASP) and Pulmonary Vascular Resistance (PVR).","status":"COMPLETED","status_verified_date":"2012-07","start_date":"2009-03","start_date_type":null,"primary_completion_date":"2010-07","primary_completion_date_type":"ACTUAL","completion_date":"2010-07","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["GEHC"]}