Clinical trial Recruiting at 25 sites Interventional Ages 22 and up

Long-term safety and effectiveness of the VARIPULSE catheter system for treating atrial fibrillation

Official title: BWI202405: Assessment of Long-Term Safety and Effectiveness in Treatment Management of Atrial Fibrillation With the VARIPULSE™ Catheter System

Run by Biosense Webster, Inc. · NCT07227532 · Data updated 2026-11-12

This will test whether the VARIPULSE pulsed‑field ablation catheter is safe and effective long‑term for people with symptomatic paroxysmal atrial fibrillation who need pulmonary vein isolation.

More Atrial Fibrillation trials

Quick facts

Study typeInterventional
Ages22 Years and up
SexAll
Enrollment276 (estimated)
SponsorBiosense Webster, Inc.
Industry-sponsored
Locations25 sites (Phoenix, Arizona and 24 other locations)
StatusRecruiting
StartedOctober 21, 2025
Main results expectedDecember 31, 2030
Study endsDecember 31, 2030
Registry record updatedNovember 4, 2026
Trial IDNCT07227532 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults with symptomatic paroxysmal atrial fibrillation who are considered appropriate for catheter ablation and who are refractory to, intolerant of, or have contraindications to at least one Class I/III antiarrhythmic medication.

Probably not a fit

Patients with persistent or long‑standing persistent AF, prior surgical or catheter AF ablation, significant contraindicating medical problems, or life expectancy under 12 months are unlikely to benefit from this protocol.

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

What this trial studies

This interventional study uses the VARIPULSE pulsed‑field ablation catheter with the TRUPULSE generator to perform pulmonary vein isolation in patients with symptomatic paroxysmal atrial fibrillation. Participants are typically those who are candidates for catheter ablation and who are refractory to, intolerant of, or have contraindications to at least one Class I/III antiarrhythmic drug. The trial follows patients over the long term to document safety outcomes and durability of rhythm control after the procedure. Key exclusions include prior AF ablation, persistent or long‑standing persistent AF, significant contraindicating medical conditions, and limited life expectancy.

Why it matters

Potential benefit: If successful, this could provide a durable, long‑term treatment option that reduces AF recurrence while maintaining a favorable safety profile for people with paroxysmal AF.

How similar studies have gone: Pulsed‑field ablation techniques, including the VARIPULSE system, have shown promising acute safety and pulmonary vein isolation results in prior studies and the device is FDA‑approved, but robust long‑term effectiveness data are still being gathered.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Symptomatic paroxysmal Atrial Fibrillation (AF) who, in the opinion of the investigator, are candidates for catheter ablation for AF
* Refractory (that is, ineffective, not tolerated, or not desired) or contraindicated to at least one Class I/III antiarrhythmic drugs (AAD)
* Willing and capable of providing consent
* Able and willing to comply with all pre-, post-, and follow-up testing and requirements

Exclusion Criteria:

* Previously diagnosed with persistent or long-standing persistent AF (more than \[\>\] 7 days in duration)
* Previous surgical or catheter ablation for AF
* Significant congenital anomaly or medical problem that in the opinion of the investigator would be a contraindication to catheter ablation for AF
* Current enrollment in an investigational study evaluating another device or drug
* Life expectancy less than 12 months
* Any contraindications as defined in the Protocol

Where it's running

  • Phoenix Cardiovascular Research Group
    Phoenix, Arizona, United States
    Recruiting
  • Tucson Medical Center Pima Heart and Vascular
    Tucson, Arizona, United States
    Recruiting
  • OC Memorial
    Fountain Valley, California, United States
    Recruiting
  • Community Memorial Hospital
    Ventura, California, United States
    Recruiting
  • Aurora Denver Cardiology Associates
    Aurora, Colorado, United States
    Recruiting
  • Mayo Clinic in Florida
    Jacksonville, Florida, United States
    Recruiting
Show 19 more locations
  • HCA Florida Mercy Hospital
    Miami, Florida, United States
    Recruiting
  • Orlando Health Heart and Vascular Institute
    Orlando, Florida, United States
    Recruiting
  • Edward Hospital Midwest Cardiovascular Institute
    Naperville, Illinois, United States
    Recruiting
  • University of Iowa Hospitals and Clinics
    Iowa City, Iowa, United States
    Recruiting
  • University of Kansas Medical Center
    Kansas City, Kansas, United States
    Recruiting
  • The Kansas City Heart Rhythm Institute
    Overland Park, Kansas, United States
    Recruiting
  • Henry Ford Health System
    Detroit, Michigan, United States
    Recruiting
  • Trinity Health
    Ypsilanti, Michigan, United States
    Recruiting
  • Mayo Clinic Rochester
    Rochester, Minnesota, United States
    Recruiting
  • Capital Health Regional Medical Center
    Trenton, New Jersey, United States
    Recruiting
  • Northwell Health Physician Partners Cardiology
    Lake Success, New York, United States
    Recruiting
  • Albert Einstein College Of Medicine - Montefiore Medical Center
    The Bronx, New York, United States
    Recruiting
  • The Christ Hospital
    Cincinnati, Ohio, United States
    Recruiting
  • Springfield Medical Center
    Springfield, Ohio, United States
    Recruiting
  • Texas Cardiac Arrhythmia Research Foundation
    Austin, Texas, United States
    Recruiting
  • Baylor Scott and White Research Institute
    Fort Worth, Texas, United States
    Recruiting
  • Baylor Scott & White Research Institute at The Heart Hospital Baylor Plano
    Plano, Texas, United States
    Recruiting
  • Winchester Medical Center
    Winchester, Virginia, United States
    Recruiting
  • Mercy Hospital
    Janesville, Wisconsin, United States
    Recruiting

Study contacts

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.