A Study Evaluating the Effectiveness and Safety of Pulsed Field Ablation Using the FARAPULSE™ System for Electrical Isolation of Pulmonary Veins and Superior Vena Cava

Last updated: September 6, 2025
Sponsor: Shanghai Zhongshan Hospital
Overall Status: Active - Not Recruiting

Phase

N/A

Condition

Dysrhythmia

Chest Pain

Arrhythmia

Treatment

Pulsed Field Ablation

Clinical Study ID

NCT07162597
B2025-426R
  • Ages 18-75
  • All Genders

Study Summary

This study is a prospective, single-center, single-arm clinical trial planning to screen and enroll 200 subjects. It aims to evaluate the efficacy and safety of pulsed field ablation (PFA) using the FARAPULSE™ system for pulmonary vein isolation (PVI) and superior vena cava isolation (SVCI) in Chinese patients with paroxysmal atrial fibrillation (PAF). Baseline preoperative data, along with intraoperative and postoperative follow-up information, will be collected. The primary endpoint is the proportion of subjects achieving successful PVI and SVCI using solely the FARAPULSE™ PFA system. Secondary endpoints include long-term procedural success rates and various procedural parameters. Additionally, the incidence of adverse events will be recorded as safety endpoints. The study adopts a single-arm target value design hypothesis, and research data will also be compared with historical data from patients treated with radiofrequency ablation for PVI and SVCI to further evaluate the efficacy of PFA. Subgroup analysis will be conducted in patients with heart failure to assess the efficacy and safety of PFA in this population.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • Age between 18 and 75 years.

  • Documented diagnosis of paroxysmal atrial fibrillation (PAF), defined as typical AFelectrographic characteristics (absence of P waves with irregular fibrillatorywaves) recorded on 12-lead ECG or symptomatic Holter monitoring, with each episodelasting less than 7 days.

  • Symptomatic despite attempted antiarrhythmic drug therapy.

  • Scheduled to undergo initial catheter ablation procedure.

  • Voluntarily provided written informed consent.

Exclusion

Exclusion Criteria:

  • AF secondary to electrolyte imbalance, thyroid disorders, or otherreversible/non-cardiac causes.

  • Persistent atrial fibrillation.

  • Presence of persistent left superior vena cava.

  • Contraindications to pulsed field ablation (e.g., left atrial appendage thrombus,post-atrial septal defect device closure, permanent metallic implants in the leftatrium) or contraindications to anticoagulant therapy.

  • Unsuitable for deep sedation/anesthesia per operator assessment.

  • Life expectancy less than 1 year.

  • Other conditions deemed inappropriate for inclusion by the investigator.

Study Design

Total Participants: 200
Treatment Group(s): 1
Primary Treatment: Pulsed Field Ablation
Phase:
Study Start date:
October 01, 2025
Estimated Completion Date:
June 30, 2028