{"nct_id":"NCT00161538","title":"Pacing of the Atria in Sick Sinus Syndrome Trial Preventive Strategies for Atrial Fibrillation","status":"COMPLETED","status_verified_date":"2006-10","start_date":"2000-07","start_date_type":null,"primary_completion_date":null,"primary_completion_date_type":null,"completion_date":"2006-06","completion_date_type":null,"phases":["PHASE4"],"tickers":["MDT"]}