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Heart mapping showdown: which technique stops dangerous rhythms best?

NCT ID NCT06371729

Disease control Sponsor: IRCCS Ospedale San Raffaele Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study compares two methods—DEEP mapping and activation mapping—used during catheter ablation to treat ventricular tachycardia (VT), a fast, dangerous heart rhythm. About 222 adults with an implanted defibrillator and VT will be randomly assigned to one technique. The goal is to see which approach better prevents VT from coming back over 12 months and is easier for doctors to perform.

What this could mean

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

Active substance
catheter ablation guided by DEEP mapping or activation mapping
What this could lead to
If successful, this could identify the better mapping method for VT ablation, potentially reducing repeat procedures and improving long-term heart rhythm control.
What could go wrong
This is a mid-stage trial with 222 participants, so results may not apply to all patients. Both techniques are established, so the difference may be small, and risks like bleeding or heart damage from ablation remain.

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

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 222 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jun 2024

Expected to finish

Jun 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Patients with an implanted ICD (all brands) * Patients with the indication for Ventricular Tachycardia Ablation (both first and redo procedures), supported by EnSite 3D mapping system, for the following disease aetiologies: previous MI, myocarditis, arrhythmogenic right/left ventricular dysplasia * Age: 18 years or more. * A participant is willing and able to give informed consent for participation in the trial and is available to respect the assessments described in the protocol and informed consent form. Exclusion Criteria: * Contraindication to anticoagulants. * Presence of thrombi. * Presence of Mitral and Aortic prosthetic valve. * Recent (less than 3 months) myocardial infarction, unstable angina, or Coronary Artery Bypass. * Ventricular Tachycardia caused by reversible pathology. * Life expectancy less than 1 year, according to the investigator. * Contraindications to the use of ablation/diagnostic catheters or to cardiac catheterization. * Female participant who is pregnant, lactating, or planning pregnancy during the course of the trial.

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Conditions

The condition(s) this trial relates to.

ventricular tachycardia

As listed by the trial registrant

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

Ventricular tachycardia

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • San Raffaele Hospital

    RECRUITING

    Milan, Lombardy, 20132, Italy

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