Clinical trial Recruiting at 3 sites Observational Ages 18 to 120

Investigating blood biomarkers in patients with atrial fibrillation

Official title: Correlation Of CoAGulation Biomarkers and Atrial Fibrillation Burden in Patients Post Catheter Ablation: the COAG-AF Pilot Study

Run by Tulane University · NCT04947657 · Data updated 2026-11-12

This study is testing how certain blood markers relate to atrial fibrillation in patients getting heart surgery and if the surgery changes these markers over three months.

More Atrial Fibrillation trials

Quick facts

Study typeObservational
Ages18 Years to 120 Years
SexAll
Enrollment20 (estimated)
SponsorTulane University
Academic / other
Locations3 sites (New Orleans, Louisiana and 2 other locations)
StatusRecruiting
StartedSeptember 22, 2021
Main results expectedDecember 2027
Study endsDecember 2027
Registry record updatedMarch 5, 2026
Trial IDNCT04947657 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include adults over 18 years old diagnosed with persistent or paroxysmal atrial fibrillation who are scheduled for catheter ablation.

Probably not a fit

Patients with coagulation disorders or those who are pregnant or breastfeeding may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

The COAG-AF study aims to explore the relationship between pro-thrombotic biomarkers and atrial fibrillation (AF) burden in patients undergoing catheter ablation. This observational pilot study will involve approximately twenty patients who will have blood samples collected before, during, and after the ablation procedure, alongside cardiac MRI imaging to assess fibrosis. The study will also compare coagulation biomarkers with standard population values and evaluate the impact of ablation on these biomarkers over a three-month period.

Why it matters

Potential benefit: If successful, this study could enhance understanding of AF and improve patient management by identifying biomarkers that predict AF burden and response to treatment.

How similar studies have gone: While the approach of correlating biomarkers with AF burden is being explored, this specific study's methodology is relatively novel and untested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients, male or female and older than 18 years of age.
* Patients diagnosed with persistent or paroxysmal AF.
* Patients that are undergoing catheter ablation at Tulane University Medical Center.
* Patients that had a cardiac MRI prescribed by their physician as part of their standard of care.

Exclusion Criteria:

* Patients with coagulation disorders such as, von Willebrand disease, hemophilia, Immune Thrombocytopenic Purpura, etc.
* Patients who are pregnant or breast-feeding or plan to become pregnant during the study period.
* Are not surgically sterile.
* Are of childbearing potential and are unwilling to practice two acceptable methods of birth control.
* Do not plan to continue practicing two acceptable methods of birth control throughout the trial (highly effective methods of birth control are defined as those, used alone or in combination, that result in a low failure rate i.e. less than 1% per year when used consistently and correctly).
* Patients with mental and/or physical ailments which may prohibit them from actively participating in the study.
* Any health-related gadolinium/MRI contraindications (e.g. allergy to gadolinium, pacemakers, Implantable Cardioverter Defibrillators (ICD's), other devices/implants contraindicated for use of MRI, etc.)
* Patients who have a known terminal illness with a prognosis less than 12 months at the time of the informed consent process.
* Planned cardiovascular intervention.
* Patient with diagnosed acute or chronic severe kidney disease or with a low glomerular filtration rate (GFR), \<30 mL per minute per 1.73 m2
* Patients who cannot read, speak, and/or understand English.
* Patients with cognitive impairments who are unable to give informed consent.

Where it's running

  • East Jefferson General Hospital
    New Orleans, Louisiana, United States
    Recruiting
  • University Medical Center
    New Orleans, Louisiana, United States
    Recruiting
  • Tulane Doctors - Speciality Care - Napoleon
    New Orleans, Louisiana, United States
    Recruiting

Study contacts

  • Principal investigator: Amitabh Pandey, MD — Tulane University
  • Study coordinator: Mayana Bsoul, MD
  • Email: mbsoul@tulane.edu
  • Phone: 504-988-3063

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.