# Comparison Between Upgraded '2C3L' vs. PVI Approach for Catheter Ablation of Persistent Atrial Fibrillation

> **NCT04497376** · NA · COMPLETED · sponsor: **Beijing Anzhen Hospital** · enrollment: 498 (actual)

## Conditions studied

- Persistent Atrial Fibrillation
- Catheter Ablation

## Interventions

- **PROCEDURE:** upgraded '2C3L'
- **PROCEDURE:** pulmonary vein antral isolation

## Key facts

- **NCT ID:** NCT04497376
- **Lead sponsor:** Beijing Anzhen Hospital
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2021-08-27
- **Primary completion:** 2024-07-18
- **Final completion:** 2024-07-18
- **Target enrollment:** 498 (ACTUAL)
- **Last updated:** 2024-07-19

## Collaborators

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## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04497376

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04497376, "Comparison Between Upgraded '2C3L' vs. PVI Approach for Catheter Ablation of Persistent Atrial Fibrillation". Retrieved via AI Analytics 2026-05-31 from https://api.ai-analytics.org/clinical/NCT04497376. Licensed CC0.

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