Clinical trial Recruiting at 1 site Interventional Ages 18 and up

PVI Alone vs PVI Plus PWI and SVCI with PFA in Persistent AF

Official title: A Randomized Trial of Pulmonary Vein Isolation Alone Versus Pulmonary Vein Isolation Plus Posterior Wall and Superior Vena Cava Isolation With Pulsed Field Ablation for Treatment of Persistent Atrial Fibrillation

Run by University of California, San Francisco · NCT07405359 · Data updated 2026-11-12

This study tests whether adding posterior wall isolation and superior vena cava isolation to pulmonary vein isolation with pulsed-field ablation helps people with persistent atrial fibrillation stay in rhythm.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment220 (estimated)
SponsorUniversity of California, San Francisco
Academic / other
Locations1 site (San Francisco, California)
StatusRecruiting
StartedApril 3, 2026
Main results expectedAugust 14, 2028
Study endsAugust 14, 2028
Registry record updatedJuly 14, 2026
Trial IDNCT07405359 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults (18+) with persistent AF lasting ≥7 days, eligible for ablation and willing to receive an implantable loop recorder for post-procedure monitoring.

Probably not a fit

Patients with prior atrial ablation, large left atrial volume or other high-risk exclusions may not benefit.

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 compares two ablation strategies for persistent atrial fibrillation. All participants receive pulmonary vein isolation using pulsed-field ablation; the experimental approach adds posterior wall isolation and superior vena cava isolation. The study includes adults with persistent AF and plans to monitor outcomes after ablation using an implantable loop recorder. Key eligibility includes prior ablation exclusion, adequate LA size, and consent for post-procedure monitoring. Outcomes focus on rhythm control and safety, with enrollment at a single academic center.

Why it matters

Potential benefit: If successful, the approach could improve long-term rhythm control after ablation for persistent AF.

How similar studies have gone: Previous observational work suggests safety and feasibility of PWI and SVCI with PFA, but randomized evidence is limited.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age ≥18 years at their pre-procedure visit
* Persistent AF, defined as at least one continuous AF episode lasting at least seven days in duration, documented by a continuous monitor or 2 ECGs\>7 days apart or ≥3 cardioversions
* Indicated and interested in ICM implant for monitoring post ablation
* Written informed consent obtained from subject and ability for subject to comply with the requirements of the study

Exclusion Criteria:

* Any prior atrial endocardial or epicardial ablation procedure, other than cavotricuspid isthmus ablation or supraventricular tachycardia
* Stroke or transient ischemic attack within the previous six months
* Gastrointestinal bleeding within the previous three months
* Implanted pacemaker or defibrillator
* Longstanding persistent AF (\> 3 years)
* LA volume \>80ml/m2
* Atrial septal occlusion device
* Current left atrial thrombus
* Left atrial appendage occlusion or closure device \< 6 mos or with leak or prior DRT
* Mitral or Tricuspid valve clip or mechanical replacement or clip
* Hypertrophic cardiomyopathy
* Contraindication to femoral vascular access
* Congenital heart disease with residual anatomic abnormality
* Contraindication to, or unwillingness to use, systemic anticoagulation
* Pregnancy
* Left ventricular ejection fraction \<30%
* Baseline creatinine \>2.0 mg/dL
* Predicted life expectancy less than one year
* Refusal to receive ICM implant or allergy to ICM

Where it's running

  • University of California, San Francisco
    San Francisco, California, 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.