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ClinicalTrials.gov public records Last synced Sep 29, 2026, 11:50 PM EDT

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Showing 25–48 of 313 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Ventricular Arrhythmias Clear all
Completed Phase 1 Interventional

Pilot Study of Sodium Nitrite in Resuscitated Cardiac Arrest Patients

NCT01178359
View directory record Official record
Conditions
Cardiac Arrest
Interventions
nitrite
Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 18, 2017 · Synced Sep 29, 2026, 11:50 PM EDT
Completed Not applicable Interventional Results available

Amiodarone for the Prevention of Reperfusion Ventricular Fibrillation

NCT00587483
View directory record Official record
Conditions
Other Intraoperative Cardiac Functional Disturbances During Cardiac Surgery
Interventions
Lidocaine, Amiodarone, Placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
342 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 11, 2011 · Synced Sep 29, 2026, 11:50 PM EDT
Completed No phase listed Observational

MAVRIC VR ICD Registry

NCT00270933
View directory record Official record
Conditions
Ventricular Tachycardia, Ventricular Fibrillation
Interventions
Registry
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
742 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
81
States / cities
Birmingham, Alabama • Tuscaloosa, Alabama • Little Rock, Arkansas + 78 more
Source: ClinicalTrials.gov public record
Updated Dec 21, 2023 · Synced Sep 29, 2026, 11:50 PM EDT
Recruiting Not applicable Interventional

Trial in Arrhythmia Radioablation for Ventricular Tachycardia: Single Fraction vs Three Fractions

NCT06743789
View directory record Official record
Conditions
Ventricular Tachycardia
Interventions
Radiation Therapy
Radiation
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 90 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2030
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 26, 2026 · Synced Sep 29, 2026, 11:50 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 Sep 29, 2026, 11:50 PM EDT
Recruiting No phase listed Observational

Genetic Markers of Cardiovascular Disease in Epilepsy

NCT02824822
View directory record Official record
Conditions
Epilepsy, Seizures, Syncope, Channelopathy, Cardiomyopathies
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 50 Years
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2031
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 8, 2025 · Synced Sep 29, 2026, 11:50 PM EDT
Terminated Not applicable Interventional Results available

Early Elimination of Premature Ventricular Contractions in Heart Failure

NCT01757067
View directory record Official record
Conditions
Premature Ventricular Contractions, Congestive Heart Failure
Interventions
PVC ablation
Device
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
7
States / cities
Los Angeles, California • Baltimore, Maryland • Boston, Massachusetts + 3 more
Source: ClinicalTrials.gov public record
Updated Mar 18, 2021 · Synced Sep 29, 2026, 11:50 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Heart Rhythm Twins Study

NCT05866731
View directory record Official record
Conditions
Premature Atrial Complex, Premature Ventricular Contraction
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
156 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 9, 2026 · Synced Sep 29, 2026, 11:50 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 Sep 29, 2026, 11:50 PM EDT
Recruiting Not applicable Interventional

Electroanatomic Interactions Between Transcatheter Pulmonary Valve Prostheses and Anatomic Isthmuses in Repaired Tetralogy of Fallot

NCT05236153
View directory record Official record
Conditions
Tetralogy of Fallot, Ventricular Tachycardia, Sudden Cardiac Death
Interventions
Electroanatomic substrate mapping
Diagnostic Test
Lead sponsor
Boston Children's Hospital
Other
Eligibility
Not listed
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 8, 2023 · Synced Sep 29, 2026, 11:50 PM EDT
Terminated No phase listed Observational Results available

Optisure Lead Post Approval Study

NCT02235545
View directory record Official record
Conditions
Heart Failure, Tachycardia, Ventricular
Interventions
St. Jude Medical Optisure Lead
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
1,735 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
46
States / cities
Birmingham, Alabama • Phoenix, Arizona • Jonesboro, Arkansas + 42 more
Source: ClinicalTrials.gov public record
Updated Jul 30, 2025 · Synced Sep 29, 2026, 11:50 PM EDT
Completed No phase listed Observational

Vektor vMap™ Clinical Validation Study

NCT04559061
View directory record Official record
Conditions
Cardiac Arrhythmia, Atrial Fibrillation, Ventricular Arrythmia, Premature Ventricular Complexes Multiple, Ventricular Tachycardia, Ventricular Fibrillation, Premature Atrial Complex, Atrioventricular Reentrant Tachycardia
Interventions
Cardiac ablation procedure
Device
Lead sponsor
Vektor Medical
Industry
Eligibility
22 Years to 100 Years
Enrollment
225 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
4
States / cities
Charleston, California • La Jolla, California • San Diego, California + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 8, 2021 · Synced Sep 29, 2026, 11:50 PM EDT
Completed Not applicable Interventional

Functional Outcomes in CondUction System Pacing and Right Ventricular Synchrony (FOCUS-Right)

NCT06601322
View directory record Official record
Conditions
Left Branch Bundle Block, RV - Right Ventricular Abnormality
Interventions
Pacemaker Interrogation and Electrocardiogram (ECG):, Cardiopulmonary Exercise Test (CPET) and Exercise Stress Cardiac Magnetic Resonance (ExeCMR, Continuous pacemaker telemetry (CPT)
Other
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Sep 29, 2026, 11:50 PM EDT
Active, not recruiting Phase 1Phase 2 Interventional

Gene Therapy for ACM Due to a PKP2 Pathogenic Variant

NCT06109181
View directory record Official record
Conditions
Arrhythmogenic Cardiomyopathy, PKP2-ACM, PKP2-ARVC
Interventions
LX2020
Genetic
Lead sponsor
Lexeo Therapeutics
Industry
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
5
States / cities
Stanford, California • Baltimore, Maryland • Ann Arbor, Michigan + 2 more
Source: ClinicalTrials.gov public record
Updated Nov 12, 2025 · Synced Sep 29, 2026, 11:50 PM EDT
Terminated No phase listed Observational

Rhythm Disturbances After Ventricular Septal Defects

NCT00208624
View directory record Official record
Conditions
Heart Block After Surgery
Interventions
Not listed
Lead sponsor
Emory University
Other
Eligibility
Not listed
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated May 5, 2014 · Synced Sep 29, 2026, 11:50 PM EDT
Terminated No phase listed Observational

The PSVT Place Registry.Paroxysmal Supraventricular Tachycardia (PSVT) Registry.

NCT03353610
View directory record Official record
Conditions
Paroxysmal Supraventricular Tachycardia (PSVT)
Interventions
Not listed
Lead sponsor
Milestone Pharmaceuticals Inc.
Other
Eligibility
Not listed
Enrollment
354 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Dec 3, 2020 · Synced Sep 29, 2026, 11:50 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Influence of Progesterone Administration on Drug-Induced QT Interval Lengthening

NCT01929083
View directory record Official record
Conditions
Prolonged QT Interval in EKG and Sudden Death
Interventions
Progesterone, Placebo, Ibutilide
Drug
Lead sponsor
Indiana University
Other
Eligibility
21 Years to 40 Years · Female only
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
2
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Oct 30, 2015 · Synced Sep 29, 2026, 11:50 PM EDT
Terminated No phase listed Observational

SHERLOCK 3CG™ Diamond Tip Confirmation System

NCT03288766
View directory record Official record
Conditions
Indication for Peripheral Intravenous Catheterization, Atrial Flutter, Premature Atrial Contraction, Premature Ventricular Contraction, Premature Junctional Contraction, Tachycardia, Atrioventricular Block, Bundle-Branch Block
Interventions
PICC placement with SHERLOCK 3CG™ Diamond TCS with MODUS II software
Procedure
Lead sponsor
C. R. Bard
Industry
Eligibility
21 Years and older
Enrollment
232 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
6
States / cities
Las Vegas, Nevada • Greensboro, North Carolina • Greenville, North Carolina + 3 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2021 · Synced Sep 29, 2026, 11:50 PM EDT
Completed Not applicable Interventional Results available

REnal Sympathetic dEnervaTion as an a Adjunct to Catheter-based VT Ablation

NCT01858194
View directory record Official record
Conditions
Ventricular Tachycardia
Interventions
Renal sympathetic denervation, VT ablation alone
Device
Lead sponsor
Vivek Reddy
Other
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 17, 2020 · Synced Sep 29, 2026, 11:50 PM 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 25, 2022 · Synced Sep 29, 2026, 11:50 PM 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 27, 2026 · Synced Sep 29, 2026, 11:50 PM EDT
Completed No phase listed Observational

Long QT Syndrome-Population Genetics and Cardiac Studies

NCT00005176
View directory record Official record
Conditions
Cardiovascular Diseases, Heart Diseases, Ventricular Arrhythmia, Long QT Syndrome
Interventions
Not listed
Lead sponsor
University of Rochester
Other
Eligibility
Up to 100 Years
Enrollment
2,125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1985 – 2013
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Oct 22, 2015 · Synced Sep 29, 2026, 11:50 PM EDT
Not listed No phase listed Observational

Prospective Study to Identify Patients at Risk of Dangerous Ventricular Arrhythmias

NCT00562757
View directory record Official record
Conditions
Sudden Cardiac Death
Interventions
Not listed
Lead sponsor
Harbinger Medical, Inc.
Industry
Eligibility
18 Years and older
Enrollment
320 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2009
U.S. locations
4
States / cities
Phoenix, Arizona • Wichita, Kansas • Boston, Massachusetts + 1 more
Source: ClinicalTrials.gov public record
Updated Nov 22, 2007 · Synced Sep 29, 2026, 11:50 PM EDT
Completed No phase listed Observational

Non-Invasive 3D Mapping for Identifying Origin and Preferential Propagation of Ventricular Arrhythmias

NCT03831516
View directory record Official record
Conditions
Premature Ventricular Complex, Ventricular Arrythmia
Interventions
Non Invasive Electroanatomical Mapping
Diagnostic Test
Lead sponsor
Northwell Health
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 20, 2022 · Synced Sep 29, 2026, 11:50 PM EDT