Comparing cardioneuroablation and permanent pacing for treating bradycardia symptoms.

A Multicenter, Randomized, Double-blind, Research Study comparinG the Efficacy and Safety of cardioneuroablaTion vs Permanent Pacing in Patients With an implantabLE PACEmaker for Symptomatic Bradycardia.

Not applicable Interventional 4th Military Clinical Hospital with Polyclinic, Poland · NCT05896592

This study is testing if a new treatment called cardioneuroablation can help people with slow heart rates feel better and possibly stop using their pacemakers.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment99 (estimated)
Ages18 Years to 65 Years
SexAll
Sponsor4th Military Clinical Hospital with Polyclinic, Poland Academic / other
Locations2 sites (Radom, Masovian Voivodeship and 1 other locations)
Trial IDNCT05896592 on ClinicalTrials.gov

What this trial studies

This clinical trial evaluates the efficacy and safety of cardioneuroablation (CNA) as an alternative to permanent pacemaker (PM) therapy in patients suffering from symptomatic bradycardia due to sinus node dysfunction or atrioventricular block. Participants will be randomized into groups receiving either CNA or continued PM therapy, with assessments including ECG monitoring, symptom history, and device checks over several months. The study aims to determine if CNA can effectively alleviate symptoms and allow for the discontinuation of PM therapy, potentially improving patient quality of life.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18-65 who have undergone pacemaker implantation for sinus node or atrioventricular node dysfunction and have a positive response to the atropine test.

Not a fit: Patients with severe bradycardia, certain heart conditions, or those outside the age range may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could provide patients with a non-invasive option to manage bradycardia symptoms and reduce reliance on permanent pacemakers.

How similar studies have performed: While the use of cardioneuroablation is gaining attention, this specific comparison with permanent pacing is relatively novel and has not been extensively tested in prior studies.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients who underwent pacemaker implantation before 50 years old due to sinus node and/or atrioventricular node dysfunction
* Positive response to atropine test
* Age between 18-65 years
* Signed informed consent to participate in the study

Exclusion Criteria:

* Own heart rate \<30/min
* Fainting after pacemaker therapy initiation
* Persistent and sustained atrial fibrillation
* History of myocarditis
* History of myocardial infarction
* History of cardiac surgery
* History of ablation procedures
* Congenital heart defects
* Congenital atrioventricular block
* Neuromuscular and neurodegenerative diseases
* Indications for expanding the pacemaker system to ICD/CRT-D
* Pregnancy
* Renal insufficiency with GFR \<30 ml/min/1.73m2
* Age below 18 and above 65 years
* HAS-BLED score \>/= 3 points

Where this trial is running

Radom, Masovian Voivodeship and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions BradycardiaSyncopecardioneuroablarionfunctional bradycardiapacemaker treatment discontinuation
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.