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Functional Substrate-Only Guided VT Ablation

NCT06464315 · Status: ENROLLING_BY_INVITATION · Phase: NA · Type: INTERVENTIONAL · Enrollment: 36

Last updated 2026-03-25

No results posted yet for this study

Summary

Ventricular tachycardia (VT) is a leading cause of death and suffering in the Veteran population. Currently, ablation procedures are performed to destroy the diseased tissue that causes this problem. This study will test to see if an experimental strategy of only targeting regions of slow conduction without the induction of VT can improve the efficacy and safety of VT ablation. Once this study is completed, the investigators will know whether this ablation strategy could help increase the efficacy, safety and efficiency of ablation therapy of fatal heart rhythms.

Conditions

Interventions

PROCEDURE

Functional Substrate-Only Mapping without VT Induction

In this arm, invasive maps will be constructed by annotating the latest deflection and peak frequency during voltage mapping of stable intrinsic rhythm to localize areas of slow conduction. Annotated algorithms are cleared by the FDA. No VT will be purposefully induced in this experimental arm.

PROCEDURE

Standard-of-Care Mapping/Imaging

Conventional invasive scar (voltage) and electrical VT (entrainment, activation, pace) mapping will be used to guide VT ablation. Functional substrate mapping will not be used in this arm. VT will be induced using standard protocols.

Sponsors & Collaborators

  • VA Office of Research and Development

    lead FED

Principal Investigators

  • Gordon Ho, MD · VA San Diego Healthcare System, San Diego, CA

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
90 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-03-18
Primary Completion
2029-09-28
Completion
2030-04-01

Countries

  • United States

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06464315 on ClinicalTrials.gov