New ablation strategy aims to keep hearts in rhythm longer

NCT ID NCT02150902

Ongoing Disease control Sponsor: Ottawa Heart Institute Research Corporation Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study compares two catheter ablation techniques for atrial fibrillation (AF), a condition where the heart beats irregularly. One method uses a standard approach with a drug called adenosine to find missed spots, while the other adds an extra ring of ablation without the drug. Researchers want to see which method better prevents AF from coming back over 12 months. About 400 adults with paroxysmal AF are taking part across Canada.

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Conditions

The condition(s) this trial relates to.

atrial fibrillation paroxysmal atrial fibrillation

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

ATRIAL FIBRILLATION

Contacts and locations

Locations

CIUSSSNIM-Hopital du Sacre-Coeur de Montreal

Montreal, Quebec, H4J 1C5, Canada
Centre hospitalier universitaire de Sherbrooke (CHUS)

Sherbrooke, Quebec, J1H 5N4, Canada
Institut universitaire de cardiologie et de pneumologie de Quebec

Québec, Quebec, G1V 4G5, Canada
McGill University Health Center

Montreal, Quebec, H3G 1A4, Canada
QE II Health Sciences Centre

Halifax, Nova Scotia, B3H 3A7, Canada
St. Michael"s Hospital

Toronto, Ontario, M5B 1W8, Canada
Sunnybrook Health Sciences Centre

Toronto, Ontario, Canada
Toronto General Hospital-University Health Network

Toronto, Ontario, M5G 2C4, Canada
University of Calgary-Foothills Campus

Calgary, Alberta, T2N 4Z6, Canada
University of Ottawa Heart Institute

Ottawa, Ontario, K1Y 4W7, Canada
Victoria Cardiac Arrhythmia Trials Inc.

Victoria, British Columbia, V8T 1Z4, Canada

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