NCT05432024

Brief Summary

Ineffective ablation lesions can cause arrhythmia recurrence after catheter ablation for cardiac arrhythmia. Ablation lesions can be created with various ablation energy modalities. This study uses cardiovascular magnetic resonance imaging to evaluate the ablation lesion characteristics of radiofrequency ablation, ultra-low temperature cryo ablation, and pulsed field ablation. The ablation lesion characteristics of different energy characteristics will be compared. Additionally, arrhythmia recurrence and quality of life will be evaluated for the different energy modalities.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
60

participants targeted

Target at P25-P50 for all trials

Timeline
23mo left

Started Mar 2023

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
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 Progress63%
Mar 2023Apr 2028

First Submitted

Initial submission to the registry

June 20, 2022

Completed
7 days until next milestone

First Posted

Study publicly available on registry

June 27, 2022

Completed
8 months until next milestone

Study Start

First participant enrolled

March 8, 2023

Completed
5.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2028

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2028

Last Updated

July 28, 2025

Status Verified

July 1, 2025

Enrollment Period

5.1 years

First QC Date

June 20, 2022

Last Update Submit

July 23, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Length of gaps in the ablation lesions

    Cardiovascular magnetic resonance imaging is used to visualize the ablation lesion. If gaps are present in the ablation lesion, the length of the gaps is measured in millimeter.

    At 3 months follow up

Secondary Outcomes (5)

  • Number of gaps in the ablation lesion

    At 3 months follow up

  • Location of gaps in the ablation lesion

    At 3 months follow up

  • Recurrence of atrial arrhythmia

    Until 1 year of follow up

  • Atrial arrhythmia burden

    Baseline, 3 and 12 months follow up

  • Atrial fibrillation related quality of life

    Baseline, 3 and 12 months follow up

Study Arms (3)

Radiofrequency ablation, High power, short duration

Radiofrequency ablation is an ablation modality that uses radiofrequency energy to create ablation lesions through heat. Patients that are scheduled for pulmonary vein isolation using radiofrequency ablation will be consented for study participation.

Device: Catheter ablation

Ultra-low temperature cryo ablation

Ultra-low temperature cryo ablation is an ablation modality that uses nitrogen near its liquid-vapor critical point to create ablation lesions through ultra-low temperatures. Patients that are scheduled for pulmonary vein isolation using ultra-low temperature cryo ablation will be consented for study participation.

Device: Catheter ablation

Pulsed field ablation

Pulsed field ablation is an ablation modality that uses short lived electrical fields to create ablation lesions through irreversible electroporation. Patients that are scheduled for pulmonary vein isolation using pulsed field ablation will be consented for study participation.

Device: Catheter ablation

Interventions

An ablation catheter is introduced in the heart. Ablation is performed by applying ablation energy to the target tissue. The aim of ablation is to create an ablation lesion that does not conduct the electrical signals that induce or sustain the cardiac arrhythmia.

Pulsed field ablationRadiofrequency ablation, High power, short durationUltra-low temperature cryo ablation

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

The studied population will be drawn from all patients that are scheduled for catheter ablation at the participating center.

You may qualify if:

  • Adult patients (age ≥18 years old)
  • Paroxysmal or persistent atrial fibrillation, meeting criteria of the 2020 European Society of Cardiology Guidelines for diagnosis and management of atrial fibrillation
  • Patients scheduled to undergo catheter ablation for cardiac arrhythmia using one of the following techniques: Radiofrequency ablation (High power, short duration), Ultra-low temperature cryo ablation, or Pulsed field ablation

You may not qualify if:

  • Known (or suspected) allergic reaction to gadolinium
  • Contraindications for MRI (such as claustrophobia, certain implants, devices, high body mass index).
  • Pregnancy or breastfeeding
  • Prior intervention in the left atrium (ablation or surgery)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

St. Antonius Hospital

Nieuwegein, 3435 CM, Netherlands

RECRUITING

MeSH Terms

Conditions

Atrial Fibrillation

Interventions

Catheter Ablation

Condition Hierarchy (Ancestors)

Arrhythmias, CardiacHeart DiseasesCardiovascular DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Radiofrequency AblationRadiofrequency TherapyTherapeuticsAblation TechniquesSurgical Procedures, Operative

Study Officials

  • Lucas VA Boersma, MD, PhD

    St. Antonius Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Lucas VA Boersma, MD, PhD

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Clinical professor

Study Record Dates

First Submitted

June 20, 2022

First Posted

June 27, 2022

Study Start

March 8, 2023

Primary Completion (Estimated)

April 1, 2028

Study Completion (Estimated)

April 1, 2028

Last Updated

July 28, 2025

Record last verified: 2025-07

Locations