{"nct_id":"NCT00146861","title":"LIFE Study - Limiting Chronotropic Incompetence for Pacemaker Recipients","status":"COMPLETED","status_verified_date":"2017-05","start_date":"2003-07","start_date_type":"ACTUAL","primary_completion_date":"2006-01","primary_completion_date_type":"ACTUAL","completion_date":"2006-01","completion_date_type":"ACTUAL","phases":["PHASE4"],"tickers":["BSX"]}