NCT06134752

Brief Summary

Comparison of pulmonary vein and left atrial posterior wall isolation durability and clinical outcome between radiofrequency and pulse field ablation in patients with persistent and longstanding persistent atrial fibrillation.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
50

participants targeted

Target at P25-P50 for not_applicable

Timeline
12mo left

Started Dec 2023

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress71%
Dec 2023May 2027

First Submitted

Initial submission to the registry

November 8, 2023

Completed
10 days until next milestone

First Posted

Study publicly available on registry

November 18, 2023

Completed
17 days until next milestone

Study Start

First participant enrolled

December 5, 2023

Completed
3.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 15, 2027

Expected
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2027

Last Updated

February 11, 2026

Status Verified

February 1, 2026

Enrollment Period

3.2 years

First QC Date

November 8, 2023

Last Update Submit

February 8, 2026

Conditions

Keywords

persistent atrial fibrillationpulse field ablationradiofrequency ablation

Outcome Measures

Primary Outcomes (1)

  • Durability of isolation

    Testing for durability of pulmonary vein and left atrial posterior wall isolation in both study arms with high density endocardial remapping. Absence of electrical activity or voltage inside ablation lines of less than 0.05 mV or presence of exit block upon pacing with local capture will be considered as proof of pulmonary vein and posterior left atrial wall isolation.

    3 months

Secondary Outcomes (3)

  • Freedom from atrial arrhythmias

    12 months

  • Intracardiac electrograms analysis

    1 day

  • Recording of complications

    30 days

Study Arms (2)

Radiofrequency ablation

ACTIVE COMPARATOR

Pulmonary vein and left atrial posterior wall isolation with point by point radiofrequency ablation.

Other: Radiofrequency ablation

Pulse field ablation

EXPERIMENTAL

Pulmonary vein and left atrial posterior wall isolation with point by point pulse field ablation.

Other: Pulse field ablation

Interventions

Point by point isolation of pulmonary veins and left atrial posterior wall

Pulse field ablation

Point by point isolation of pulmonary veins and left atrial posterior wall

Radiofrequency ablation

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • atrial fibrillation recorded with 12-lead ECG, holter ECG or implantable device on two occasions at least one week apart

You may not qualify if:

  • history of previous catheter ablation, history of previous heart surgery, life expectancy less than one year, any lifethreatening severe acute condition, acute deep venous thrombosis, presence of intracardiac masses or thrombi.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Cardiovascular Surgery Department, University Medical Centre Ljubljana

Ljubljana, 1000, Slovenia

Location

MeSH Terms

Conditions

Atrial Fibrillation

Interventions

Irreversible Electroporation TherapyRadiofrequency Ablation

Condition Hierarchy (Ancestors)

Arrhythmias, CardiacHeart DiseasesCardiovascular DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Electroporation TherapiesTherapeuticsElectroporationCytological TechniquesClinical Laboratory TechniquesInvestigative TechniquesElectrochemical TechniquesRadiofrequency TherapyAblation TechniquesSurgical Procedures, Operative

Study Officials

  • Jernej Štublar, BSE

    University Medical Centre Ljubljana

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD

Study Record Dates

First Submitted

November 8, 2023

First Posted

November 18, 2023

Study Start

December 5, 2023

Primary Completion (Estimated)

February 15, 2027

Study Completion (Estimated)

May 1, 2027

Last Updated

February 11, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will not share

Locations