Freezing heart tissue: new balloon trial for AFib patients

NCT ID NCT05905835

First seen Jun 25, 2026 · Last updated Jun 26, 2026 · Updated 1 time

Summary

This trial tests a new device called the Synaptic Cryoablation System, which uses a balloon to freeze small areas of the heart and correct irregular heartbeats in people with paroxysmal atrial fibrillation. 128 participants will receive the treatment and be followed for 12 months. The goal is to see if it safely stops abnormal heart rhythms and improves symptoms.

What this could mean

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

Active substance

Synaptic Cryoablation System (a device that freezes heart tissue to correct irregular heartbeats)

What this could lead to

If successful, this could offer a new, effective option for controlling atrial fibrillation and reducing symptoms without long-term medication.

What could go wrong

This is an early-stage trial with only 128 participants, so results may not apply to everyone. Risks include procedure-related complications like heart damage or stroke.

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.

Contacts and locations

Locations

  • Banner University Medical Center

    Phoenix, Arizona, 85006, United States

  • Cedars-Sinai Medical Center

    Los Angeles, California, 90048, United States

  • Christus Health Frances Hospital

    Tyler, Texas, 75701, United States

  • Dignity Health Arizona Research Enterprise

    Phoenix, Arizona, 85006, United States

  • Mercy General Hospital

    Sacramento, California, 95819, United States

  • Northwell Health - Lenox Hill Hospital

    New York, New York, 10075, United States

  • St. Bernard's Heart & Vascular

    Jonesboro, Arkansas, 72401, United States

  • St. Luke's Mid America

    Kansas City, Missouri, 64111, United States

  • VCU Pauley Heart Center

    Richmond, Virginia, 23298, United States

  • Vanderbilt University Medical Center

    Nashville, Tennessee, 37232, United States