Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Catheter ablation vs. anti-arrhythmic drugs for PVCs

Official title: Catheter Ablation Versus Anti-arrhythmic Drugs for Premature Ventricular Complexes (CAAD-PVC): A Randomised Controlled Trial

Run by Western Sydney Local Health District · NCT07445334 · Data updated 2026-11-12

This study tests whether catheter ablation or anti-arrhythmic medications are better at reducing PVC symptoms and improving quality of life for adults with a normal heart function.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment50 (estimated)
SponsorWestern Sydney Local Health District
Academic / other
Locations1 site (Westmead, New South Wales)
StatusRecruiting
StartedMarch 31, 2026
Main results expectedSeptember 1, 2027
Study endsMarch 1, 2028
Registry record updatedSeptember 24, 2026
Trial IDNCT07445334 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults 18 years or older with PVC burden ≥10% and normal ejection fraction (≥50%), experiencing symptoms attributable to PVCs.

Probably not a fit

Patients with significant comorbidities, certain arrhythmias, prior ablation, or those unable to adhere to follow-up may not benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This interventional study compares catheter ablation to anti-arrhythmic medication for adults with premature ventricular complexes and normal left ventricular function. Eligible participants have a PVC burden of 10% or more and PVC-related symptoms. The trial aims to determine which approach more effectively reduces symptoms and improves quality of life, guiding future treatment decisions. Interventions include catheter ablation or medical therapy using anti-arrhythmic drugs and/or beta blockers, with follow-up assessments to monitor outcomes. The study excludes individuals with certain arrhythmias, pregnancy, limited life expectancy, or prior ablation for ventricular arrhythmia.

Why it matters

Potential benefit: If successful, patients may experience greater symptom relief and better quality of life with the more effective treatment option.

How similar studies have gone: Previous work in PVC management shows mixed results; this trial directly compares ablation to medical therapy to clarify benefits.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria

1. PVC burden of ≥10% as determined by ≥24-hour heart rhythm monitoring.
2. Normal left ventricular ejection fraction, defined as ejection fraction ≥50%.
3. Aged ≥18 years.
4. Symptoms due to PVCs according to the judgement of the treating physician.

Exclusion Criteria

1. Unable or unwilling to provide informed consent or comply with study requirements including study investigations, follow-up, medical adherence and completion of the assigned intervention.
2. Women who are pregnant or breastfeeding.
3. Life expectancy ≤12 months.
4. Ventricular tachycardia (VT), defined as spontaneous VT lasting ≥30 seconds, haemodynamically unstable VT of any duration, inducible sustained VT during any electrophysiology study, or ≥10 episodes of non-sustained VT (\>5 consecutive beats lasting ≤30 seconds) within 24 hours on heart rhythm monitoring.
5. Previous catheter ablation for ventricular arrhythmia.
6. Clinically significant coronary artery disease, defined as a history of myocardial infarction, prior coronary revascularisation, inducible ischaemia on functional testing or obstructive coronary artery disease on coronary imaging. Any type of coronary assessment is permitted, although computed tomography coronary angiography is encouraged.
7. Moderate or greater valvular heart disease.
8. Known non-ischaemic or ischaemic cardiomyopathy or evidence of myocardial scar on cardiac magnetic resonance imaging suggestive of structural heart disease.
9. Known cardiac channelopathies including catecholaminergic polymorphic ventricular tachycardia (CPVT), Brugada syndrome and long- or short-QT syndrome.
10. In the opinion of the investigator or responsible physician, participation would not be in the patient's best interest or the patient would be unable to complete study procedures because of concomitant illness, physical impairment or mental condition.

Where it's running

  • Westmead Hospital
    Westmead, New South Wales, Australia
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.