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ClinicalTrials.gov public records Last synced Oct 25, 2026, 8:00 PM EDT

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Showing 145–168 of 370 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Conduction Defects Clear all
Completed Phase 1 Interventional

Methadone Pharmacokinetics and Cardiac Effects in Newborns

NCT00715988
View directory record Official record
Conditions
Pain
Interventions
Methadone HCl Inject 10 mg/ml (will require dilution), Methadone
Drug
Lead sponsor
University of Utah
Other
Eligibility
29 Weeks to 48 Weeks
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2017
U.S. locations
2
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jun 1, 2022 · Synced Oct 25, 2026, 8:00 PM EDT
Terminated Early Phase 1 Interventional Results available

Study of Cardiac PET/CT Imaging to Guide Ablation Treatment of Ventricular Tachycardia

NCT02962076
View directory record Official record
Conditions
Ventricular Tachycardia
Interventions
[C-11] Meta-hydroxyephedrine radioactive tracer (MHED)
Drug
Lead sponsor
Khaled Awad, MD
Other
Eligibility
18 Years to 80 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 24, 2024 · Synced Oct 25, 2026, 8:00 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 25, 2026, 8:00 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Sudden Unexplained Death in Childhood (SUDC) Registry

NCT03109197
View directory record Official record
Conditions
Sudden Unexplained Death Syndrome, Sudden Unexplained Death in Childhood
Interventions
Biospecimin Collection
Other
Lead sponsor
NYU Langone Health
Other
Eligibility
11 Months to 100 Years
Enrollment
1,600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2028
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 28, 2026 · Synced Oct 25, 2026, 8:00 PM EDT
Completed Not applicable Interventional Results available

Introductory Clinical Trial for Measuring Patients Before, During, and After an Electrophysiology (EP) Procedure With a Novel, Body-Worn Sensor

NCT03657134
View directory record Official record
Conditions
Atrial Fibrillation, Ventricular Tachycardia
Interventions
CoVa-2 Monitoring System
Diagnostic Test
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 22, 2021 · Synced Oct 25, 2026, 8:00 PM EDT
Recruiting Not applicable Interventional

Comparing Direct vs Indirect Methods for Cascade Screening

NCT05348564
View directory record Official record
Conditions
Long QT Syndrome, Familial Hypercholesterolemia, Ethics, Genetic Testing
Interventions
Direct contact of family members for cascade screening of relevant variants
Behavioral
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Lancaster, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 14, 2026 · Synced Oct 25, 2026, 8:00 PM EDT
Completed Not applicable Interventional

TriVerity™ for Improved Management of Emergency Department (ED) Patients With Suspected Infections

NCT06637904
View directory record Official record
Conditions
Sepsis, Infections, Tachycardia, Fever
Interventions
TriVerity Test
Diagnostic Test
Lead sponsor
Inflammatix
Industry
Eligibility
18 Years and older
Enrollment
320 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
2
States / cities
Peoria, Illinois • Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 28, 2026 · Synced Oct 25, 2026, 8:00 PM EDT
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 Oct 13, 2026 · Synced Oct 25, 2026, 8:00 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 25, 2026, 8:00 PM EDT
Terminated Not applicable Interventional Results available

Low Cost QTc Meter for Long QT Syndrome Screening in Primary Care

NCT04441892
View directory record Official record
Conditions
Long QT Syndrome
Interventions
QTc Meter
Device
Lead sponsor
Mayo Clinic
Other
Eligibility
Up to 5 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 25, 2023 · Synced Oct 25, 2026, 8:00 PM EDT
Not yet recruiting No phase listed Observational

Myocarditis Causing Premature Ventricular Contractions:Insights From the MAVERIC Registry

NCT05158751
View directory record Official record
Conditions
Myocarditis, Premature Ventricular Contractions, Ventricular Tachycardia (VT)
Interventions
Not listed
Lead sponsor
Kansas City Heart Rhythm Research Foundation
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Sep 4, 2025 · Synced Oct 25, 2026, 8:00 PM EDT
Completed Not applicable Interventional

The Fluoroless-CSP Trial Using Electroanatomic Mapping

NCT03903107
View directory record Official record
Conditions
Sinus Node Dysfunction, Heart Block AV, LBBB, Heart Failure, Systolic
Interventions
Conventional fluoroscopy guided Conduction System Pacing(CSP), Electroanatomic Mapping (Fluoroless) guided Conduction System Pacing(CSP)
Procedure
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 28, 2025 · Synced Oct 25, 2026, 8:00 PM EDT
Recruiting Early Phase 1 Interventional

Characterization of Cardiac Electrophysiological Effects of Autonomic Neuromodulation

NCT05377216
View directory record Official record
Conditions
Ventricular Tachycardia
Interventions
Stellate Ganglion Block
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 21, 2025 · Synced Oct 25, 2026, 8:00 PM EDT
Completed No phase listed Observational

Effects Rapid Atrial Pacing Has on the Electrocardiogram (ECG) in Patients With Dual Chamber Pacemakers

NCT00883610
View directory record Official record
Conditions
Prolonged QT Interval
Interventions
Not listed
Lead sponsor
Vanderbilt University
Other
Eligibility
21 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 11, 2014 · Synced Oct 25, 2026, 8:00 PM EDT
Withdrawn No phase listed Observational

The Ability Of The PD2i Cardiac Analyzer To Predict Risk Of Ventricular Tachyarrhythmic Events

NCT00510731
View directory record Official record
Conditions
Tachycardia, Ventricular, Cardiac Sudden Death
Interventions
Not listed
Lead sponsor
Vicor Technologies, Inc.
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
19
States / cities
Los Angeles, California • San Ramon, California • Walnut Creek, California + 14 more
Source: ClinicalTrials.gov public record
Updated Dec 9, 2015 · Synced Oct 25, 2026, 8:00 PM 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 28, 2019 · Synced Oct 25, 2026, 8:00 PM EDT
Completed Phase 2 Interventional Results available

Long-term Efficacy Study of Sodium Channel Blocker in LQT3 Patients

NCT01648205
View directory record Official record
Conditions
Long QT Syndrome
Interventions
Placebo, Ranolazine
Drug
Lead sponsor
University of Rochester
Other
Eligibility
21 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Apr 7, 2022 · Synced Oct 25, 2026, 8:00 PM EDT
Completed Not applicable Interventional Results available

Adaptive CRT Effect on Electrical Dyssynchrony

NCT02543281
View directory record Official record
Conditions
Cardiomyopathy, Heart Failure, Left Bundle Branch Block
Interventions
Adaptive cardiac resynchronization therapy, Conventional Cardiac Resynchronization Therapy
Device
Lead sponsor
Larisa Tereshchenko
Other
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Mar 20, 2025 · Synced Oct 25, 2026, 8:00 PM EDT
Terminated Not applicable Interventional

Initial Management of Patients Receiving a Single Shock (IMPRESS)

NCT03531502
View directory record Official record
Conditions
Ventricular Tachycardia
Interventions
Ventricular Tachycardia Ablation, Standard Medical Therapy, Non-Invasive Programmed Stimulation (NIPS)
Procedure · Other
Lead sponsor
Saint Luke's Health System
Other
Eligibility
18 Years to 80 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 13, 2023 · Synced Oct 25, 2026, 8:00 PM EDT
Completed Not applicable Interventional Results available

Randomized Study of the Use of Warfarin During Pacemaker or ICD Implantation in Patients Requiring Long Term Anticoagulation

NCT00721136
View directory record Official record
Conditions
Bradycardia, Tachycardia, Atrial Fibrillation, Valvular Heart Disease
Interventions
continue warfarin through the procedure, Hold warfarin, Warfarin held with heparin transition.
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 99 Years
Enrollment
104 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
2
States / cities
Baltimore, Maryland • Columbia, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 31, 2017 · Synced Oct 25, 2026, 8:00 PM EDT
Completed Not applicable Interventional Results available

Stereotactic Ablative Radiotherapy for Refractory Ventricular Tachycardia

NCT03349892
View directory record Official record
Conditions
Refractory Ventricular Tachycardia
Interventions
Stereotactic Ablative Radiotherapy (SABR)
Radiation
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 15, 2021 · Synced Oct 25, 2026, 8:00 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 25, 2026, 8:00 PM EDT
Completed No phase listed Observational

The Effect of General Anesthesia on the Risk for Arrhythmia

NCT01174251
View directory record Official record
Conditions
Arrhythmia
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 8, 2013 · Synced Oct 25, 2026, 8:00 PM EDT
Terminated Phase 2 Interventional

Effectiveness of CRD-4730 in Participants With Catecholaminergic Polymorphic Ventricular Tachycardia (CPVT)

NCT06005428
View directory record Official record
Conditions
CPVT1, Heart Defects, Congenital, Heart Diseases, Ventricular Tachycardia
Interventions
CRD-4730, Placebo
Drug
Lead sponsor
Cardurion Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 99 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
3
States / cities
Cincinnati, Ohio • Cleveland, Ohio • Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Oct 25, 2026, 8:00 PM EDT