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Showing 1–24 of 188 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Tachycardia, Ventricular Clear all
Completed No phase listed Observational

Medtronic Genetic Arrhythmia Markers for Early Detection (GAME Study)

NCT00664807
View directory record Official record
Conditions
Death, Sudden, Cardiac, Ventricular Fibrillation, Tachycardia, Atrial Fibrillation, Sick Sinus Syndrome
Interventions
Not listed
Lead sponsor
Medtronic Corporate Technologies and New Ventures
Industry
Eligibility
40 Years and older
Enrollment
1,023 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Aug 24, 2009 · Synced Jul 21, 2026, 11:01 AM EDT
Completed Not applicable Interventional

Proton Particle Therapy for Cardiac Arrhythmia

NCT04392193
View directory record Official record
Conditions
Cardiac Arrhythmia
Interventions
Proton Particle Therapy
Radiation
Lead sponsor
Konstantinos Siontis
Other
Eligibility
18 Years to 80 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 14, 2025 · Synced Jul 21, 2026, 11:01 AM EDT
Completed Not applicable Interventional

CyberHeart's Cardiac Arrhythmia Ablation Treatment: Patients With Refractory Ventricular Tachycardia/Fibrillation

NCT02661048
View directory record Official record
Conditions
Tachycardia, Ventricular
Interventions
CyberHeart System
Device
Lead sponsor
Varian, a Siemens Healthineers Company
Industry
Eligibility
60 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2023
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Sep 6, 2023 · Synced Jul 21, 2026, 11:01 AM 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 15, 2026 · Synced Jul 21, 2026, 11:01 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Influence of Testosterone Administration on Drug-Induced QT Interval Prolongation and Torsades de Pointes

NCT02513940
View directory record Official record
Conditions
Long QT Syndrome
Interventions
Testosterone, Progesterone, Placebo, Ibutilide
Drug
Lead sponsor
Indiana University
Other
Eligibility
65 Years and older · Male only
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Aug 27, 2019 · Synced Jul 21, 2026, 11:01 AM EDT
Completed No phase listed Observational

Propagation ANalysis for Arrhythmogenic Conduction Elimination to Prevent Atrial Flutter and Fibrillation (PANACEA-AF)

NCT03737838
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Atrial fibrillation ablation
Device
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 6, 2024 · Synced Jul 21, 2026, 11:01 AM EDT
Terminated Phase 3 Interventional Results available

Efficacy and Safety of Etripamil for the Termination of Spontaneous Paroxysmal Supraventricular Tachycardia (PSVT).

NCT03464019
View directory record Official record
Conditions
Paroxysmal Supraventricular Tachycardia
Interventions
Etripamil, Placebo, Etripamil Test Dose
Drug
Lead sponsor
Milestone Pharmaceuticals Inc.
Other
Eligibility
18 Years and older
Enrollment
1,097 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
54
States / cities
Phoenix, Arizona • Little Rock, Arkansas • Cerritos, California + 44 more
Source: ClinicalTrials.gov public record
Updated Jul 11, 2024 · Synced Jul 21, 2026, 11:01 AM EDT
Not yet recruiting Not applicable Interventional

Cryoablation for Monomorphic Ventricular Tachycardia (VTS)

NCT07650032
View directory record Official record
Conditions
Ventricular Tachycardia, Sustained, Ventricular Tachycardia, Monomorphic
Interventions
Ultra Low Temperature Ablation (ULTA)
Device
Lead sponsor
Adagio Medical
Industry
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
8
States / cities
Phoenix, Arizona • Long Beach, California • Boston, Massachusetts + 5 more
Source: ClinicalTrials.gov public record
Updated Jun 16, 2026 · Synced Jul 21, 2026, 11:01 AM EDT
Completed No phase listed Observational

Novel Cardiac Signal Processing System

NCT04112433
View directory record Official record
Conditions
Cardiac Arrhythmia
Interventions
PURE EP 2
Device
Lead sponsor
BioSig Technologies, Inc.
Industry
Eligibility
18 Years and older
Enrollment
104 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
3
States / cities
Jacksonville, Florida • Boston, Massachusetts • Austin, Texas
Source: ClinicalTrials.gov public record
Updated Feb 10, 2022 · Synced Jul 21, 2026, 11:01 AM EDT
Terminated No phase listed Observational

The Use of CT to Identify Damaged Heart Muscle in Patients Undergoing Ventricular Tachycardia Ablation.

NCT00583284
View directory record Official record
Conditions
Ventricular Tachycardia
Interventions
Not listed
Lead sponsor
The Cleveland Clinic
Other
Eligibility
21 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 19, 2017 · Synced Jul 21, 2026, 11:01 AM EDT
Completed Not applicable Interventional Results available

Ablation at Virtual-hEart pRedicted Targets for VT

NCT03536052
View directory record Official record
Conditions
Ventricular Tachycardia, Ischemic Cardiomyopathy
Interventions
Virtual Heart Guided Ablation
Device
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 4, 2026 · Synced Jul 21, 2026, 11:01 AM EDT
Completed Phase 4 Interventional

Antiarrhythmics or Ablation for Ventricular Tachycardia 2

NCT02830360
View directory record Official record
Conditions
Ventricular Tachycardia (VT)
Interventions
Antiarrythmic Drug Therapy, Catheter ablation
Drug · Procedure
Lead sponsor
John Sapp
Other
Eligibility
18 Years and older
Enrollment
416 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2024
U.S. locations
2
States / cities
Hartford, Connecticut • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 31, 2024 · Synced Jul 21, 2026, 11:01 AM EDT
Terminated Phase 1 Interventional

Dynamic Substrate Mapping (DSM) for Ischemic VT

NCT00558857
View directory record Official record
Conditions
Ischemic Ventricular Tachycardia
Interventions
Dynamic Substrate Mapping-guided ablation
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years to 80 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
3
States / cities
Chicago, Illinois • Philadelphia, Pennsylvania • Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Feb 3, 2019 · Synced Jul 21, 2026, 11:01 AM EDT
Active, not recruiting No phase listed Observational

Enlighten Study: The EV-ICD Post Approval Registry

NCT06048731
View directory record Official record
Conditions
Ventricular Arrhythmia, Tachycardia
Interventions
Defibrillation using EV-ICD
Device
Lead sponsor
Medtronic
Industry
Eligibility
Not listed
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2037
U.S. locations
57
States / cities
Huntington Park, California • Redwood City, California • San Diego, California + 45 more
Source: ClinicalTrials.gov public record
Updated Jul 29, 2025 · Synced Jul 21, 2026, 11:01 AM EDT
Completed No phase listed Observational

Extended ECG Monitoring in HCM Patients

NCT04056715
View directory record Official record
Conditions
Hypertrophic Cardiomyopathy, Nonsustained Ventricular Tachycardia, Ventricular Tachycardia, Atrial Fibrillation, Arrhythmia
Interventions
Zio XT
Device
Lead sponsor
iRhythm Technologies, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 28, 2023 · Synced Jul 21, 2026, 11:01 AM EDT
Terminated No phase listed Observational

Physician Assessment of the Clinical Utility of a Patient-Specific 3D Electro-Anatomical Heart Model in VT Ablation

NCT04841382
View directory record Official record
Conditions
Ischemic Monomorphic Ventricular Tachycardia
Interventions
Supporting information.
Other
Lead sponsor
CardioSolv Ablation Technologies
Industry
Eligibility
18 Years to 85 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 18, 2022 · Synced Jul 21, 2026, 11:01 AM EDT
Completed No phase listed Observational

Circulating Biomarkers and Ventricular Tachyarrhythmia

NCT01892462
View directory record Official record
Conditions
Cardiomyopathy, Ventricular Tachycardia, Ventricular Fibrillation
Interventions
Not listed
Lead sponsor
Ochsner Health System
Other
Eligibility
18 Years and older
Enrollment
220 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Apr 6, 2017 · Synced Jul 21, 2026, 11:01 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Mayo AVC Registry and Biobank

NCT03049254
View directory record Official record
Conditions
Arrhythmogenic Right Ventricular Cardiomyopathy, Cardiomyopathies, Heart Diseases, Cardiovascular Diseases, Sudden Cardiac Arrest, Sudden Cardiac Death, Arrhythmogenic Right Ventricular Dysplasia, Arrhythmogenic Ventricular Cardiomyopathy, Familial Dilated Cardiomyopathy, Cardiovascular Abnormalities, Sarcoidosis, Cardiac Arrhythmia, Cardiac Sarcoidosis, Myocarditis, Inflammatory Cardiomyopathy, Ventricular Tachycardia, Right Ventricular Outflow Tract Ventricular Tachycardia
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
Not listed
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2027
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 26, 2026 · Synced Jul 21, 2026, 11:01 AM EDT
Completed No phase listed Observational

Precision Event Monitoring for Patients With Heart Failure Using HeartLogic

NCT03579641
View directory record Official record
Conditions
Heart Failure, Defibrillators, Implantable, Monitoring, Physiologic, Cardiac Resynchronization Therapy, Cardiovascular Disease, Heart Disease
Interventions
HeartLogic Sensors
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
2,184 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
56
States / cities
Birmingham, Alabama • Jonesboro, Arkansas • Little Rock, Arkansas + 48 more
Source: ClinicalTrials.gov public record
Updated Oct 24, 2022 · Synced Jul 21, 2026, 11:01 AM EDT
Completed Not applicable Interventional Results available

Atropine in Catecholaminergic Polymorphic Ventricular Tachycardia (CPVT)

NCT02927223
View directory record Official record
Conditions
Catecholaminergic Polymorphic Ventricular Tachycardia
Interventions
Atropine, Exercise treadmill test
Drug · Procedure
Lead sponsor
Vanderbilt University
Other
Eligibility
6 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 27, 2020 · Synced Jul 21, 2026, 11:01 AM EDT
Terminated Not applicable Interventional Results available

Randomized Double Blind Control Trial on Effects of Ranolazine on New Onset Atrial Fibrillation

NCT01590979
View directory record Official record
Conditions
Atrial Fibrillation New Onset, Hemorrhage, Prolonged QTc Interval, Ventricular Tachycardia, Medical Care; Complications, Late Effect of Complications
Interventions
Ranolazine, Placebo
Drug
Lead sponsor
Northwell Health
Other
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Staten Island, New York
Source: ClinicalTrials.gov public record
Updated Mar 22, 2017 · Synced Jul 21, 2026, 11:01 AM EDT
Completed No phase listed Observational Results available

EnSite Precision Observational Study

NCT03260244
View directory record Official record
Conditions
Cardiac Arrhythmia
Interventions
cardiac mapping and radiofrequency ablation procedure
Procedure
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
1,065 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
7
States / cities
Birmingham, Alabama • Jonesboro, Arkansas • Little Rock, Arkansas + 4 more
Source: ClinicalTrials.gov public record
Updated Nov 7, 2024 · Synced Jul 21, 2026, 11:01 AM EDT
Completed No phase listed Observational Results available

Physiologic Pacing Registry

NCT03719040
View directory record Official record
Conditions
Bradycardia, Sinus Node Dysfunction, Heart Block, Syncope, Cardiomyopathies, Ventricular Tachycardia, Heart Failure
Interventions
Physiologic pacing device implant
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
870 participants
Timeline
2018 – 2021
U.S. locations
26
States / cities
Huntsville, Alabama • Burlingame, California • San Diego, California + 22 more
Source: ClinicalTrials.gov public record
Updated Aug 18, 2024 · Synced Jul 21, 2026, 11:01 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Defining the Risk of Ventricular Tachycardia in Genetic Forms of Early-onset Atrial Fibrillation

NCT06647459
View directory record Official record
Conditions
Ventricular Tachycardia, Atrial Fibrillation
Interventions
EP Study
Diagnostic Test
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Jul 21, 2026, 11:01 AM EDT