{"nct_id":"NCT00170326","title":"Progressive Ventricular Dysfunction Prevention in Pacemaker Patients","status":"COMPLETED","status_verified_date":"2017-04","start_date":"2002-01","start_date_type":null,"primary_completion_date":"2009-03","primary_completion_date_type":"ACTUAL","completion_date":"2009-03","completion_date_type":"ACTUAL","phases":["NA"],"tickers":["MDT"]}