{"nct_id":"NCT01104558","title":"Association Between Genetic Polymorphism of Beta-adrenergic Receptor and Effects of Bisoprolol in Korean Heart Failure Patients.","status":"COMPLETED","status_verified_date":"2014-01","start_date":"2008-12","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":["MRK"]}