{"nct_id":"NCT01558635","title":"Evaluation of the Cardioblate CryoFlex Surgical Ablation System in Longstanding Persistent Atrial Fibrillation","status":"TERMINATED","status_verified_date":"2019-07","start_date":"2011-11","start_date_type":null,"primary_completion_date":"2016-01","primary_completion_date_type":"ACTUAL","completion_date":"2016-01","completion_date_type":"ACTUAL","phases":["NA"],"tickers":["MDT"]}