{"nct_id":"NCT03835338","title":"WATCHMAN for Concomitant Left Atrial Appendage Electrical Isolation and Occlusion to Treat Persistent Atrial Fibrillation Rhythm","status":"WITHDRAWN","status_verified_date":"2022-03","start_date":"2021-09-01","start_date_type":"ESTIMATED","primary_completion_date":"2023-04-30","primary_completion_date_type":"ESTIMATED","completion_date":"2024-04-30","completion_date_type":"ESTIMATED","phases":["NA"],"tickers":["BSX"]}