New ablation catheter shows promise for treating irregular heartbeat

NCT ID NCT03729830

Completed Disease control Sponsor: Boston Scientific Corporation Source: ClinicalTrials.gov ↗

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

Summary

This study tested a new type of catheter (a thin tube) that uses heat to destroy tiny areas of heart tissue causing irregular heartbeats in people with paroxysmal atrial fibrillation (AFib). The catheter has a cooling system to prevent overheating. The trial involved 415 participants and tracked safety and effectiveness for 12 months after the procedure. The goal was to see if this system could safely and effectively stop AFib episodes.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

Open irrigated ablation catheter

What this could lead to

If successful, this could provide a safer and more effective way to treat paroxysmal atrial fibrillation, reducing the need for repeat procedures.

What could go wrong

This is a completed study, so results are already known. The procedure carries risks like stroke, heart damage, or bleeding. It may not work for everyone.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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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.

PAROXYSMAL ATRIAL FIBRILLATION

Contacts and locations

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Locations

AdventHealth Orlando

Orlando, Florida, 32803, United States
Bethesda North Hospital

Cincinnati, Ohio, 45220, United States
Broward General Medical Center

Miami, Florida, 33136, United States
Catholic Medical Center

Manchester, New Hampshire, 03102, United States
Centre Hospitalier Princesse Grace

Monaco, 98000, Monaco
Christus Trinity Mother Frances Health System

Tyler, Texas, 75701, United States
Cleveland Clinic Foundation

Cleveland, Ohio, 44195, United States
Dartmouth Hitchcock Medical Center

Lebanon, New Hampshire, 03756-1000, United States
HeartPlace Mid-Cities EP

Bedford, Texas, 76021, United States
Juedisches Krankenhaus Berlin

Mitte, 13347, Germany
Kaleida Health

Buffalo, New York, 14213, United States
Keimyung University Dongsan Medical Center

Daegu, 42601, South Korea
Kokura Memorial Hospital

Fukuoka-ken, 802-8555, Japan
Korea University Medical Center

Seoul, 2841, South Korea
Lehigh Valley Hospital

Allentown, Pennsylvania, 18103, United States
Nebraska Heart Institute

Lincoln, Nebraska, 68526, United States
Orion Medical

Pasadena, Texas, 77505, United States
Papworth Hospital

Cambridge, CB2 0AY, United Kingdom
St. John's Hospital

Springfield, Illinois, 62769, United States
St. Lukes Idaho Cardiology Associates

Boise, Idaho, 83712, United States
Staedtisches Klinikum Karlsruhe

Karlsruhe, 76133, Germany
Torrance Memorial Medical Center

Torrance, California, 90505, United States
University of Alabama at Birmingham

Birmingham, Alabama, 35294, United States
University of Chicago Hospital

Chicago, Illinois, 60637, United States
University of Iowa Hospitals and Clinics

Iowa City, Iowa, 52242, United States
Yokosuka Kyosai Hospital

Kanagawa Prefecture, 238-8558, Japan