CClinicalTrials.gg
Enrolling by invitationNCT04520347IVTCCUpdated Dec 15, 2025

IVTCC 2.0: A Prospective Multicenter Ventricular Tachycardia Catheter Ablation Registry

An observational study in Ventricular Arrhythmia, Ventricular Tachycardia and Premature Ventricular Contraction (PVC), sponsored by University of California, Los Angeles. Enrolling by invitation at 41 sites in 7 countries. Per ClinicalTrials.gov, last updated 2025-12-15.

Sponsored by University of California, Los Angeles · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
10,000
Sex
All
01

Study summary

This is a prospective multi-center international registry. The objective of this registry is to collect prospective data on patients undergoing catheter ablation for Ventricular Tachycardia (VT) and Premature Ventricular Contractions (PVC). The registry will be used for clinical monitoring, research, and quality improvement purposes.

Read the detailed description

Sudden cardiac death (SCD), predominantly due to ventricular tachyarrhythmias, is a leading cause of mortality in the United States and around the world. Catheter ablation of ventricular arrhythmias has proven efficacious in reducing the burden of arrhythmias and reducing implantable cardiac defibrillator (ICD) shocks.

The aim of this study is to create a prospective international database registry that will allow for better assessment of the outcomes of catheter ablation of ventricular arrhythmias. The registry, with approximately 30 participating centers, will help to identify the overall success rates and associated benefits of the procedure and provide more comprehensive data on understudied populations and treatment.

02

Conditions studied

  • Ventricular Arrhythmia
  • Ventricular Tachycardia
  • Premature Ventricular Contraction (PVC)
  • Cardiomyopathy

Keywords

  • Arrhythmia
  • Cardiac Conduction System Disease
  • Sudden Cardiac Death
  • Implantable Cardiac Defibrillator (ICD)
03

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Patients with ventricular arrhythmias that undergo catheter ablation for ventricular tachycardia or premature ventricular contractions.

Eligibility criteria

Inclusion Criteria:

- All patients undergoing catheter ablation for ventricular tachycardia (VT) or premature ventricular contractions (PVCs).

04

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
10,000 participants (estimated)
Target follow-up
10 Years
Patient registry
Yes
05

What researchers measure

Primary outcomes

  1. Ventricular tachycardia (VT) recurrence

    Freedom from ventricular tachycardia episodes requiring ICD Intervention (shock or Anti-Tachycardia Pacing) or repeat procedure.

    Time frame: From date of procedure assessed by shock, Anti-Tachycardia Pacing, or repeat procedure, up to 10 years.

Secondary outcomes

  1. Rate of complications

    Cardiovascular-related and procedure-related major complications and/or adverse events.

    Time frame: From date of procedure assessed up to 12 months.

  2. Time to transplant or death

    Time frame: From date of procedure assessed by date of transplant and/or death, up to 10 years.

06

Study locations

41 sites
  • Banner Health, University of Arizona Medical Center
    Phoenix, Arizona 85719, United States
  • Cedars-Sinai Medical Center
    Los Angeles, California 90048, United States
  • University of California, Los Angeles
    Los Angeles, California 90095, United States
  • University of California, Davis
    Sacramento, California 95817, United States
  • University of California San Francisco
    San Francisco, California 94143, United States
  • University of Colorado Hospital
    Aurora, Colorado 80045, United States
  • Hartford HealthCare
    Hartford, Connecticut 06103, United States
  • University of Florida Health
    Gainesville, Florida 32610, United States
  • The Kansas City Heart Rhythm Institute
    Kansas City, Kansas 66211, United States
  • University of Maryland Medical Center
    Baltimore, Maryland 21201, United States
  • Johns Hopkins Heart and Vascular Institute
    Baltimore, Maryland 21287, United States
  • Boston Children's Hospital
    Boston, Massachusetts 02115, United States
  • Brigham and Women's Hospital
    Boston, Massachusetts 02115, United States
  • Beth Israel Deaconess Medical Center
    Boston, Massachusetts 02215, United States
  • UMass Memorial Health Care
    Worcester, Massachusetts 01655, United States
  • University of Michigan Frankel Cardiovascular Center
    Ann Arbor, Michigan 48109, United States
  • University of Minnesota VA Medical Center
    Minneapolis, Minnesota 55417, United States
  • Mayo Clinic
    Rochester, Minnesota 55902, United States
  • Washington University in St. Louis
    St Louis, Missouri 63130, United States
  • The Mount Sinai Hospital
    New York, New York 10029, United States
  • Columbia University Irving Medical Center
    New York, New York 10032, United States
  • Montefiore Medical Center
    The Bronx, New York 10461, United States
  • Cleveland Clinic Foundation
    Cleveland, Ohio 44195, United States
  • Oregon Health & Science University
    Portland, Oregon 97239, United States
  • Children's Hospital of Pennsylvania
    Philadelphia, Pennsylvania 19104, United States
  • University of Pennsylvania Health System
    Philadelphia, Pennsylvania 19104, United States
  • Wellspan Health
    York, Pennsylvania 17403, United States
  • Medical University of South Carolina
    Charleston, South Carolina 29425, United States
  • Vanderbilt Heart and Vascular Institute
    Nashville, Tennessee 37232, United States
  • Texas Cardiac Arrhythmia Institute at St. David's Medical Center
    Austin, Texas 78705, United States
  • Houston Methodist Hospital
    Houston, Texas 77030, United States
  • University of Utah Health
    Salt Lake City, Utah 84132, United States
  • University of Virginia Health System
    Charlottesville, Virginia 22903, United States
  • University of Washington Medical Center
    Seattle, Washington 98195, United States
  • The Montreal Heart Institute
    Montreal, Canada
  • Shaare Zedek Medical Center
    Jerusalem, Israel
  • Dokkyo Medical University Koshigaya Hospital
    Koshigaya, Japan
  • Leiden University
    Leiden, Netherlands
  • Erasmus Medical Center
    Rotterdam, Netherlands
  • Gregorio Marañón General University Hospital
    Madrid, Spain
  • St. George's Hospital
    Wandsworth, United Kingdom
07

Registry details

Key details

Study ID
NCT04520347
Lead sponsor
University of California, Los Angeles
Responsible party
Jason Bradfield, MD (Director, Specialized Program for Ventricular Tachycardia, University of California, Los Angeles) — Principal investigator
First posted
Aug 20, 2020
Start date
Dec 1, 2018
Primary completion
Dec 2026 (estimated)
Completion
Nov 2027 (estimated)
Last update
Dec 15, 2025

Study contacts

Jason Bradfield, MD
principal investigator · University of California, Los Angeles
Kalyanam Shivkumar, MD, PhD
study chair · University of California, Los Angeles
Paolo Della Bella, MD
study chair · San Raffaele Hospital, Italy
Francis Marchlinski, MD, FACC, FAHA, FHRS
study chair · University of Pennsylvania Health System
Andrea Natale, MD, FACC, FHRS, FESC
study chair · Texas Cardiac Arrhythmia Institute at St. David's Medical Center
William G Stevenson, MD
study chair · Vanderbilt Heart and Vascular Institute

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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