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ClinicalTrials.gov public records Last synced Oct 5, 2026, 3:35 PM EDT

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Showing 49–72 of 313 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Ventricular Arrhythmias Clear all
Completed No phase listed Observational

The Signal-averaged ElectrocArdiogram in Long Term Follow-up of Chronic CHagas Disease - RIO de Janeiro Cohort

NCT01340963
View directory record Official record
Conditions
Chagas Cardiomyopathy, Cardiac Arrhythmia, Stroke, Left Ventricular Function Systolic Dysfunction, Cardiac Death
Interventions
Not listed
Lead sponsor
Universidade Gama Filho
Other
Eligibility
18 Years to 75 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1995 – 2012
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 10, 2013 · Synced Oct 5, 2026, 3:35 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

COvid-19 LongitUdinal Multiethnic BioImaging Assessment of CARDiovascular Sequelae Registry

NCT04661657
View directory record Official record
Conditions
Covid19, Cardiac Disease, Cardiac Arrhythmia, Myocarditis, Left Ventricular Dysfunction
Interventions
Transthoracic echocardiogram (TTE), Cardiovascular Magnetic Resonance (CMR) Imaging
Other
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 6, 2022 · Synced Oct 5, 2026, 3:35 PM EDT
Completed Not applicable Interventional

PREPARE - Primary Prevention Parameters Evaluation

NCT00279279
View directory record Official record
Conditions
Tachycardia, Ventricular, Implantable Cardioverter Defibrillator (ICD), Fibrillation, Ventricular, Syncope
Interventions
Implanted Device
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
700 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
31
States / cities
Birmingham, Alabama • Mesa, Arizona • Phoenix, Arizona + 28 more
Source: ClinicalTrials.gov public record
Updated Oct 26, 2006 · Synced Oct 5, 2026, 3:35 PM EDT
Completed No phase listed Observational

Pacemaker Utilization and Ventricular Pacing in Patients Undergoing Trans-catheter Aortic Valve Replacement (TAVR)

NCT02994667
View directory record Official record
Conditions
Ventricular Flutter, Atrioventricular Block, Intraventricular Conduction Delay, Bundle Branch Block, Pacemaker Implantation
Interventions
Permanent Pacemaker Placement
Device
Lead sponsor
Baylor Research Institute
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Plano, Texas
Source: ClinicalTrials.gov public record
Updated Jan 22, 2020 · Synced Oct 5, 2026, 3:35 PM EDT
Terminated Phase 4 Interventional Results available

Catheter Ablation vs. Medical Therapy in Congested Hearts With AF

NCT02686749
View directory record Official record
Conditions
Congestive Heart Failure, Left Ventricular Failure, Atrial Fibrillation
Interventions
Catheter Ablation, FDA approved anti arrhythmic drug
Device · Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
6
States / cities
Hartford, Connecticut • Akron, Ohio • Cleveland, Ohio + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 5, 2025 · Synced Oct 5, 2026, 3:35 PM EDT
Completed Not applicable Interventional

MRI Assessment of Arrythmia Ablation Lesions

NCT02761343
View directory record Official record
Conditions
Ventricular Tachycardia, Cardiac Arrhythmia
Interventions
MRI scan
Other
Lead sponsor
Children's National Research Institute
Other
Eligibility
Not listed
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jan 21, 2020 · Synced Oct 5, 2026, 3:35 PM EDT
Completed No phase listed Observational

Heart Rate Variability and Sudden Cardiac Death

NCT00005235
View directory record Official record
Conditions
Cardiovascular Diseases, Coronary Disease, Heart Diseases, Myocardial Infarction, Death, Sudden, Cardiac, Ventricular Arrhythmia
Interventions
Not listed
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
715 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1988 – 1993
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 24, 2015 · Synced Oct 5, 2026, 3:35 PM EDT
Completed Not applicable Interventional Results available

WATCH-TAVR, WATCHMAN for Patients With Atrial Fibrillation Undergoing Transcatheter Aortic Valve Replacement

NCT03173534
View directory record Official record
Conditions
Atrial Fibrillation, Aortic Valve Stenosis
Interventions
WATCHMAN, TAVR
Device
Lead sponsor
samir kapadia
Other
Eligibility
18 Years and older
Enrollment
350 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
32
States / cities
Phoenix, Arizona • Burlingame, California • Santa Barbara, California + 27 more
Source: ClinicalTrials.gov public record
Updated May 22, 2024 · Synced Oct 5, 2026, 3:35 PM EDT
Completed Not applicable Interventional Results available

Magnetic Stimulation to Treat VT Storm

NCT04043312
View directory record Official record
Conditions
Ventricular Tachycardia
Interventions
Magstim SuperRapid
Device
Lead sponsor
University of Pennsylvania
Other
Eligibility
19 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 8, 2022 · Synced Oct 5, 2026, 3:35 PM EDT
Terminated Phase 2 Interventional

Study Evaluating GAP-486 on Heart Rhythm in Patients With Coronary Artery Disease

NCT00137332
View directory record Official record
Conditions
Arrhythmia
Interventions
GAP-486 (ZP-123), 0.9% Sodium Chloride, USP
Drug
Lead sponsor
Wyeth is now a wholly owned subsidiary of Pfizer
Industry
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
19
States / cities
Sacramento, California • San Francisco, California • Washington D.C., District of Columbia + 15 more
Source: ClinicalTrials.gov public record
Updated Dec 10, 2007 · Synced Oct 5, 2026, 3:35 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Efficacy of EVP 1001-1 (SeeMore) in the Assessment of Myocardial Viability in Patients With Cardiovascular Disease

NCT01989195
View directory record Official record
Conditions
ISCHEMIC CARDIOMYOPATHY
Interventions
'SEEMORE' - MANGANESE-ENHANCED MRI CONTRAST REAGENT
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 70 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Jan 2, 2017 · Synced Oct 5, 2026, 3:35 PM EDT
Completed Phase 4 Interventional Results available

The Use of Dual Chamber ICD With Special Programmed Features to Lower the Risk of Inappropriate Shock

NCT00787800
View directory record Official record
Conditions
Ventricular Tachycardia, Ventricular Fibrillation, Atrial Fibrillation, Supraventricular Tachycardia
Interventions
Dual Chamber ICD, Single Chamber ICD
Device
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 90 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
2
States / cities
Jacksonville, Florida • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 24, 2014 · Synced Oct 5, 2026, 3:35 PM EDT
Recruiting No phase listed Observational

The Comparative Advantage of the Optrell Mapping Catheter in Ventricular Arrhythmias From the Papillary Muscles

NCT07541092
View directory record Official record
Conditions
Ventricular Arrythmia
Interventions
Ablation using Optrell™ mapping catheter
Procedure
Lead sponsor
Northwell Health
Other
Eligibility
18 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
New Hyde Park, New York
Source: ClinicalTrials.gov public record
Updated Apr 21, 2026 · Synced Oct 5, 2026, 3:35 PM EDT
Completed Phase 1Phase 2 Interventional

IC14 (Atibuclimab) in Arrhythmogenic Cardiomyopathy

NCT06275893
View directory record Official record
Conditions
Arrhythmogenic Right Ventricular Dysplasia, Arrhythmogenic Left Ventricular Cardiomyopathy, Arrhythmogenic Right Ventricular Cardiomyopathy 1, Arrhythmogenic Cardiomyopathy, ACM, ARVC, PKP2
Interventions
IC14
Biological
Lead sponsor
Implicit Bioscience
Industry
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
2
States / cities
St Louis, Missouri • Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 22, 2026 · Synced Oct 5, 2026, 3:35 PM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

Derivation of Human Induced Pluripotent Stem (iPS) Cells to Heritable Cardiac Arrhythmias

NCT02413450
View directory record Official record
Conditions
Inherited Cardiac Arrythmias, Long QT Syndrome (LQTS), Brugada Syndrome (BrS), Catecholaminergic Polymorphic Ventricular Tachycardia (CPVT), Early Repolarization Syndrome (ERS), Arrhythmogenic Cardiomyopathy (AC, ARVD/C), Hypertrophic Cardiomyopathy (HCM), Dilated Cardiomyopathy (DCM), Muscular Dystrophies (Duchenne, Becker, Myotonic Dystrophy), Normal Control Subjects
Interventions
Not listed
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 85 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2031
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 16, 2026 · Synced Oct 5, 2026, 3:35 PM EDT
Completed Phase 2 Interventional

Double Blind Placebo Controlled Dose Ranging Study of the Efficacy and Safety of SSR149744c 100 or 300 mg for the Prevention of ventrICular ARrhythmia-triggered Icd interventiOnS

NCT00232297
View directory record Official record
Conditions
Arrhythmia, Tachycardia, Ventricular, Ventricular Fibrillation
Interventions
SSR149744C
Drug
Lead sponsor
Sanofi
Industry
Eligibility
21 Years and older
Enrollment
153 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Bridgewater, New Jersey
Source: ClinicalTrials.gov public record
Updated May 8, 2012 · Synced Oct 5, 2026, 3:35 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate How VI-0521 Affect Cardiac Repolarization in Healthy Male and Female Volunteers

NCT00839891
View directory record Official record
Conditions
Torsades de Pointes
Interventions
VI-0521
Drug
Lead sponsor
VIVUS LLC
Industry
Eligibility
19 Years to 50 Years
Enrollment
112 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Jan 21, 2010 · Synced Oct 5, 2026, 3:35 PM EDT
Recruiting No phase listed Observational

Novel Technologies to Improve Echocardiographic Estimates of Left Ventricular Filling Pressure in Heart Failure Combined With Atrial Fibrillation

NCT07436299
View directory record Official record
Conditions
Heart Failure (HF), Atrial Fibrillation (AF)
Interventions
Not listed
Lead sponsor
Oslo University Hospital
Other
Eligibility
18 Years and older
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
2
States / cities
Cleveland, Ohio • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Oct 5, 2026, 3:35 PM EDT
Completed Phase 3 Interventional

Ablation of Clinical Ventricular Tachycardia Versus Addition of Substrate Ablation on the Long Term Success Rate of VT Ablation

NCT01045668
View directory record Official record
Conditions
Ventricular Tachycardia
Interventions
Radiofrequency Catheter Ablation (RFCA)
Procedure
Lead sponsor
Texas Cardiac Arrhythmia Research Foundation
Other
Eligibility
18 Years to 75 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Aug 25, 2014 · Synced Oct 5, 2026, 3:35 PM EDT
Recruiting No phase listed Observational

Long Term Evaluation of Cardiac Arrhythmias After Transcatheter Aortic Valve Implantation -The LOCATE Registry

NCT06055751
View directory record Official record
Conditions
Aortic Stenosis, Atrial Fibrillation New Onset, Heart Block
Interventions
TAVR Procedure and implantation of Boston Scientific Loop Recorder (LUX-Dx PMA# K193473)
Device
Lead sponsor
Kansas City Heart Rhythm Research Foundation
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
2
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Oct 16, 2024 · Synced Oct 5, 2026, 3:35 PM EDT
Completed Phase 4 Interventional

Optimal Anti-tachycardia Therapy in Implantable Cardioverter-defibrillator (ICD) Patients Without Pacing Indications

NCT00729703
View directory record Official record
Conditions
Tachycardia
Interventions
OVATIO DR 6550
Device
Lead sponsor
LivaNova
Industry
Eligibility
18 Years and older
Enrollment
462 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2013
U.S. locations
5
States / cities
Atlanta, Georgia • Decatur, Georgia • Mandeville, Louisiana + 2 more
Source: ClinicalTrials.gov public record
Updated Jan 13, 2015 · Synced Oct 5, 2026, 3:35 PM EDT
Completed Not applicable Interventional

MASTER I - Microvolt T Wave Alternans Testing for Risk Stratification of Post MI Patients

NCT00305240
View directory record Official record
Conditions
Myocardial Infarction, Arrhythmia, Ventricular, Ischemic Cardiomyopathy
Interventions
T Wave Alternans Test
Procedure
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
Not listed
Enrollment
656 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2007
U.S. locations
47
States / cities
Mobile, Alabama • Phoenix, Arizona • Walnut Creek, California + 44 more
Source: ClinicalTrials.gov public record
Updated Feb 13, 2008 · Synced Oct 5, 2026, 3:35 PM EDT
Terminated No phase listed Observational Results available

OMNI Study--Assessing Therapies in Medtronic Pacemaker, Defibrillator, and Cardiac Resynchronization Therapy Devices.

NCT00277524
View directory record Official record
Conditions
Tachycardia, Ventricular, Heart Failure, Congestive, Ventricular Fibrillation, Ventricular Dysfunction, Bradycardia
Interventions
Not listed
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
3,032 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
113
States / cities
Tucson, Arizona • Little Rock, Arkansas • Fresno, California + 107 more
Source: ClinicalTrials.gov public record
Updated Aug 28, 2013 · Synced Oct 5, 2026, 3:35 PM EDT
Completed Not applicable Interventional

AV Nodal Reentrant Tachycardia Study

NCT00618683
View directory record Official record
Conditions
Tachycardia, Atrioventricular Nodal Reentry
Interventions
Cardiac Invasive Electrophysiological Study
Procedure
Lead sponsor
University of Oklahoma
Other
Eligibility
16 Years to 80 Years
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2021
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated May 10, 2024 · Synced Oct 5, 2026, 3:35 PM EDT