{"nct_id":"NCT00267098","title":"Biventricular Versus Right Ventricular Pacing in Heart Failure Patients With Atrioventricular Block (BLOCK HF)","status":"COMPLETED","status_verified_date":"2014-02","start_date":"2003-12","start_date_type":null,"primary_completion_date":"2012-12","primary_completion_date_type":"ACTUAL","completion_date":"2013-03","completion_date_type":"ACTUAL","phases":["NA"],"tickers":["MDT"]}