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 type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 220 (estimated) |
| Sponsor | University of California, San Francisco Academic / other |
| Locations | 1 site (San Francisco, California) |
| Status | Recruiting |
| Started | April 3, 2026 |
| Main results expected | August 14, 2028 |
| Study ends | August 14, 2028 |
| Registry record updated | July 14, 2026 |
| Trial ID | NCT07405359 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
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University of California, San Francisco
San Francisco, California, United States Recruiting
Study contacts
- Principal investigator: Edward Gerstenfeld, MD, MS — University of California, San Francisco
- Study coordinator: Marialena Varympopioti, MS
- Email: mariaeleni.varympopioti@ucsf.edu
- Phone: 415-514-7310
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.