{"nct_id":"NCT01415518","title":"Efficacy and Tolerability Study in Severe Chronic Obstructive Pulmonary Disease (COPD) Patients","status":"COMPLETED","status_verified_date":"2019-06","start_date":"2011-09-01","start_date_type":"ACTUAL","primary_completion_date":"2012-12-01","primary_completion_date_type":"ACTUAL","completion_date":"2012-12-01","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["AZN"]}