New heart catheter aims to stop dangerous rhythms in their tracks

NCT ID NCT06703489

Recruiting now Disease control Sponsor: Medtronic Cardiac Ablation Solutions Source: ClinicalTrials.gov ↗

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

Summary

This study is testing a new device called the Sphere-9 catheter, used with the Affera mapping system, to treat ventricular tachycardia (VT) — a fast, dangerous heart rhythm. The procedure uses heat to destroy small areas of scarred heart tissue that cause the abnormal rhythm. The trial will enroll 60 adults who have had repeated episodes of VT linked to heart scarring. Researchers will check if the procedure is safe and if it can stop VT from happening again.

What this could mean

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

Active substance: Sphere-9 catheter and Affera ablation system (device)
What this could lead to: If successful, this could provide a new, more effective way to treat ventricular tachycardia by precisely destroying the heart tissue causing dangerous rhythms.
What could go wrong: This is an early feasibility study with only 60 participants, so results may not apply to everyone. There are risks of serious complications like heart or lung problems from the procedure.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

Arrhythmias, Cardiac cardiovascular disorder heart disorder myocardial ischemia Pathologic Processes ventricular tachycardia

As listed by the trial registrant

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

VENTRICULAR TACHYCARDIA (VT)

Contacts and locations

Locations

Beth Israel Deaconess Medical Center
RECRUITING

Boston, Massachusetts, 02215, United States
Cleveland Clinic Foundation
RECRUITING

Cleveland, Ohio, 44195, United States
Hospital of the University of Pennsylvania
RECRUITING

Philadelphia, Pennsylvania, 19104, United States
Icahn School of Medicine at Mount Sinai
RECRUITING

New York, New York, 10029, United States
Texas Cardiac Arrhythmia Research Foundation
RECRUITING

Austin, Texas, 78705, United States
Vanderbilt University Medical Center
RECRUITING

Nashville, Tennessee, 37232, United States

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