{"nct_id":"NCT00157846","title":"X-Change HF - Exchange of the Existing Pacemaker/ICD in Bradycardia Patients Suffering From Heart Failure","status":"TERMINATED","status_verified_date":"2017-02","start_date":"2003-10","start_date_type":null,"primary_completion_date":"2008-08","primary_completion_date_type":"ACTUAL","completion_date":"2008-08","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["MDT"]}