{"nct_id":"NCT00424268","title":"Effect of Roflumilast in Chronic Obstructive Pulmonary Disease (COPD) Patients Treated With Tiotropium: The HELIOS Study (BY217/M2-128)","status":"COMPLETED","status_verified_date":"2016-09","start_date":"2007-01","start_date_type":null,"primary_completion_date":"2008-01","primary_completion_date_type":"ACTUAL","completion_date":"2008-07","completion_date_type":"ACTUAL","phases":["PHASE3"],"tickers":["AZN"]}