Anticoagulation for New-Onset Post-Operative Atrial Fibrillation After CABG
Recruiting now Phase 3 NCT04045665
Run by Icahn School of Medicine at Mount Sinai · for 18 and older · All sexes
What this study is about
The primary objective of this study is to evaluate the effectiveness (prevention of thromboembolic events) and safety (major bleeding) of adding oral anticoagulation (OAC) to background antiplatelet therapy in patients who develop new-onset post-operative atrial fibrillation (POAF) after isolated coronary artery bypass graft (CABG) surgery. All patients with a qualifying POAF event, who decline randomization, will be offered the option of enrollment in a parallel registry that captures their baseline risk profile and their treatment strategy in terms of anticoagulants or antiplatelets received. These patients will also be asked to fill out a brief decliner survey.
Who can join (things the study team will check)
✅ You may be able to join if…
- Patients of age ≥18 years who undergo isolated CABG for coronary artery disease
- POAF that persists for >60 minutes or is recurrent (more than one episode) within 7 days after the index CABG surgery
🚫 You may not be able to join if…
- Clinical history of either permanent, persistent or paroxysmal atrial fibrillation
- Any pre-existing clinical indication for long-term OAC
- Any absolute contraindication to OAC
- Planned use of post-operative dual antiplatelet therapy (DAPT) a. This includes, but is not limited to, patients with recent PCI with drug-eluting or bare-metal stent.
- Cardiogenic shock
- Major perioperative complication* occurring between CABG and randomization a. including, but not limited to, stroke, TIA, MI, major bleeding (BARC type 4 bleeding), severe sepsis, renal failure requiring dialysis, or need for reoperation due to bleeding (e.g. pericardial tamponade).
- Concomitant left atrial appendage closure during CABG
- Concomitant valve surgery during CABG or prior valve surgery (including aortic, mitral, tricuspid or pulmonary)
- Concomitant mitral valve annuloplasty during CABG
- Concomitant carotid artery endarterectomy during CABG
- Concomitant aortic root replacement during CABG
- Concomitant surgery for AF during CABG
- Liver cirrhosis or Child-Pugh Class C chronic liver disease
- Pharmacologic therapy with an investigational drug or device within 30-days prior to randomization or plan to enroll patient in an investigational drug or device trial during participation in this trial
- Pregnancy at the time of randomization
- Unable or unwilling to provide inform consent
- Unable or unwilling to comply with the study treatment and follow-up
- Existence of underlying disease that limits life expectancy to less than one year
Where this trial is running
- CHI St. Vincent, Arkansas, Little Rock, Arkansas, United States
- University of Southern California, Los Angeles, California, United States
- Cedars-Sinai Medical Center, Los Angeles, California, United States
- Stanford University, Stanford, California, United States
- Medical Center of Aurora, Aurora, Colorado, United States
- Western Connecticut Hospital Systems, Danbury, Connecticut, United States
- Yale Medicine, New Haven, Connecticut, United States
- MedStar Washington Hospital Center, Washington D.C., District of Columbia, United States
- Emory University, Atlanta, Georgia, United States
- Piedmont Healthcare Inc., Atlanta, Georgia, United States
- Lutheran Medical Center, Fort Wayne, Indiana, United States
- Indiana University, Indianapolis, Indiana, United States
+ 94 more sites.
Who to contact
Jonathan Hupf · (212) 659-6862 · Jonathan.Hupf@mountsinai.org
It's completely normal to call and ask questions before deciding anything. Mention the study ID: NCT04045665.
Verify everything on the official ClinicalTrials.gov record. Page updated July 2026.