{"nct_id":"NCT04211441","title":"Assessment of the Sphere-9™ Catheter and Affera Mapping and Ablation System for Treatment of Atrial and Ventricular Arrhythmias","status":"COMPLETED","status_verified_date":"2025-05","start_date":"2018-06-01","start_date_type":"ACTUAL","primary_completion_date":"2019-09-02","primary_completion_date_type":"ACTUAL","completion_date":"2020-09-18","completion_date_type":"ACTUAL","phases":["NA"],"tickers":["MDT"]}