{"nct_id":"NCT02533505","title":"Phase IV O2 Consumption Study in COPD Patients.","status":"COMPLETED","status_verified_date":"2018-07","start_date":"2015-08-25","start_date_type":"ACTUAL","primary_completion_date":"2016-08-12","primary_completion_date_type":"ACTUAL","completion_date":"2016-08-12","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["AZN"]}