RecruitingPersistent Atrial FibrillationLongstanding Persistent Atrial Fibrillation
Medtronic Terminate AF Study
Eligible age
18+ yrs
Accepts
All genders
Locations
11 states
Healthy volunteers
No
See if you qualify for this study
Answer a few quick questions about your location and health. Takes about a minute.
About this study
The purpose of this study is to demonstrate the safety and effectiveness of the Cardioblate iRF and CryoFlex hand held devices for the treatment of non-paroxysmal atrial fibrillation (AF).
Sponsor: Medtronic Cardiac Surgery
You may qualify if…
- ✓ History of non-paroxysmal AF (persistent or longstanding persistent)
- ✓ Concomitant indication for non-emergent open-heart surgery, eg,
- ✓ 1. Coronary artery bypass grafting
- ✓ 2. Valve repair or replacement
- ✓ Able to take the anticoagulant warfarin or novel oral anticoagulants (NOAC)
You may not qualify if…
- ✕ Wolff-Parkinson-White syndrome
- ✕ New York Heart Association (NYHA) Class = IV
- ✕ Left Ventricular Ejection Fraction ≤ 30%
- ✕ Need for emergent cardiac surgery (ie, cardiogenic shock) or redo open heart surgery
- ✕ Previous AF ablation, atrioventricular (AV) -nodal ablation, or surgical Maze procedure
- ✕ Contraindication for anticoagulation therapy
- ✕ Left atrial diameter \> 6.0 cm
- ✕ Preoperative need for an intra-aortic balloon pump or intravenous inotropes
Where it's recruiting
California
Palo Alto · St. Helena
Connecticut
Hartford
Indiana
Indianapolis
Massachusetts
Boston
Michigan
Grand Rapids
Missouri
St Louis
Ohio
Toledo
Pennsylvania
Pittsburgh · Wynnewood
Utah
Murray
Virginia
Norfolk
Washington
Seattle · Tacoma
Source: ClinicalTrials.gov · NCT03546374 · last updated 2026-05-14