{"nct_id":"NCT01508325","title":"Comparison of Bisoprolol With Metoprolol Succinate Sustained-release on Heart Rate and Blood Pressure in Hypertensive Patients","status":"COMPLETED","status_verified_date":"2015-04","start_date":"2011-12","start_date_type":null,"primary_completion_date":"2014-04","primary_completion_date_type":"ACTUAL","completion_date":"2014-04","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["MRK"]}