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RATE CONTROL VERSUS RHYTHM CONTROL FOR POSTOPERATIVE ATRIAL FIBRILLATION

Description

The purpose of the research is to compare two strategies for treating atrial fibrillation or atrial flutter, both of which are referred to as AF, after cardiac surgery. AF is the most common complication after cardiac surgery. AF is when the upper chambers of the heart (atria) experience disorganized electrical activity which causes the heart beat to be irregular. The two treatment strategies to be used in this study are called rhythm control and rate control. The rhythm control strategy will attempt to bring the heart beat back to a regular rhythm using treatments known and approved to control heart rhythm. The rate control strategy will attempt to bring the heart rate to less than 100 beats per minute at rest using medications known and recommended to control heart rate. Both strategies are commonly used to treat AF. All of the medications that will be used in this study are the standard of care for use in patients experiencing AF. This research seeks to determine whether rhythm control is better than rate control in patients with AF after cardiac surgery.

Phase

Phase 2 - takes the treatment one step further, assessing the activity of a particular therapy in a disease, often building upon leads from the Phase I trial. While patients are generally required to be previously untreated, participation in a Phase II trial doesn't usually preclude the patient from getting the standard treatment after they've received the investigational agent. At best they are allowed to get a new drug they wouldn't be able to get otherwise that may turn out to be better for their disease.

Inclusion and Exclusion Criteria

  • Age > 18 years
  • Undergoing heart surgery for coronary artery bypass (on-pump or off-pump CABG) and/or valve repair or replacement (excluding mechanical valves), including re-operations
  • Hemodynamically stable Randomization Inclusion Criteria
  • AF that persists for > 60 minutes or recurrent (more than one) episodes of AF up to 7 days after surgery during the index hospitalization.

  • LVAD insertion or heart transplantation
  • Maze procedure
  • TAVR
  • History of or planned mechanical valve replacement
  • Correction of complex congenital cardiac defect (excluding bicuspid aortic valve, atrial septal defect or PFO)
  • History of AF or AFL
  • History of AF or AFL ablation
  • Contraindications to warfarin or amiodarone
  • Need for long-term anticoagulation
  • Concurrent participation in an interventional (drug or device) trial

Sites

  • California

    • University of Southern California, Los Angeles, California, 90033
  • Texas

    • Baylor Research Institute, Plano, Texas, 75093
    • Baylor College of Medicine, Houston, Texas, 77030
  • Wisconsin

    • University of Wisconsin, Madison, Wisconsin, 53792
  • Georgia

    • Emory University, Atlanta, Georgia, 30308
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