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 type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 50 (estimated) |
| Sponsor | Western Sydney Local Health District Academic / other |
| Locations | 1 site (Westmead, New South Wales) |
| Status | Recruiting |
| Started | March 31, 2026 |
| Main results expected | September 1, 2027 |
| Study ends | March 1, 2028 |
| Registry record updated | September 24, 2026 |
| Trial ID | NCT07445334 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
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Westmead Hospital
Westmead, New South Wales, Australia Recruiting
Study contacts
- Principal investigator: Saurabh Kumar, MBBS, PhD — Western Sydney Local Health District
- Study coordinator: Saurabh Kumar, MBBS, PhD
- Email: saurabh.kumar@health.nsw.gov.au
- Phone: +61288908140
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Using flecainide to treat frequent premature ventricular contractions and related heart issues
This study is testing if the heart medication flecainide can help adults with frequent heartbeats and related heart issues who can't or don't want to have a procedure called catheter ablation.
-
Severe Complications During VT/PVC Ablation
This study looks at real-world cases to see what severe complications occur during VT or PVC ablations and how patients are managed afterward.
-
Impact of Premature Ventricular Complexes on Respiratory and Physical Health
This study tests how premature ventricular complexes affect breathing, respiratory and hand strength, cough, physical activity, and quality of life in adults with PVCs compared with healthy controls.
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Disrupted sleep and irregular heartbeats in people with hypoglossal nerve stimulators
This study will test whether turning a hypoglossal nerve stimulation (HGNS) device off for a night increases the chance of irregular heartbeats or short atrial fibrillation episodes in adults with obstructive sleep apnea who already have an HGNS implant.
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Evaluating the need for cardiac MRI in patients with premature ventricular complexes
This study is trying to see if heart scans are really needed for people with premature ventricular complexes to find any hidden heart problems.
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Using Transcutaneous Auricular Vagus Nerve Stimulation for treating frequent premature ventricular complexes
This study is testing if a new treatment using electrical stimulation of the ear can help people with frequent heart palpitations feel better and reduce their symptoms.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.