{"nct_id":"NCT00133289","title":"ULTRA Study for Pacemaker Patients","status":"COMPLETED","status_verified_date":"2007-07","start_date":"2005-07","start_date_type":null,"primary_completion_date":null,"primary_completion_date_type":null,"completion_date":"2007-06","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["BSX"]}