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ClinicalTrials.gov public records Last synced Jul 21, 2026, 9:31 PM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Conduction Disorder of the Heart Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of Oral GS-6615 on Dofetilide-Induced QT Prolongation, Safety, and Tolerability in Healthy Adults

NCT02365532
View directory record Official record
Conditions
Long QT Syndrome
Interventions
GS-6615, Placebo to match GS-6615, Placebo to match dofetilide, Dofetilide
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years to 40 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
West Bend, Wisconsin
Source: ClinicalTrials.gov public record
Updated May 19, 2015 · Synced Jul 21, 2026, 9:31 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the Effect of Intravenous Zanamivir on Cardiac Conduction in Healthy Volunteers

NCT01353729
View directory record Official record
Conditions
Influenza, Human
Interventions
600 mg zanamivir + moxifloxacin placebo, 1200 mg zanamivir + moxifloxacin placebo, zanamivir placebo + moxifloxacin placebo, zanamivir placebo + 400 mg moxifloxacin
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 55 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jul 20, 2017 · Synced Jul 21, 2026, 9:31 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 9, 2024 · Synced Jul 21, 2026, 9:31 PM EDT
Terminated No phase listed Observational

All Inclusive Kodex - EPD Study

NCT05489445
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
KODEX - EPD
Device
Lead sponsor
University of Arizona
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Dec 14, 2023 · Synced Jul 21, 2026, 9:31 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Effect of Therapeutic and Supratherapeutic Oral Doses of GSK3640254 on Cardiac Conduction Compared to Placebo and a Single Oral Dose of Moxifloxacin

NCT04563845
View directory record Official record
Conditions
HIV Infections
Interventions
GSK3640254, Placebo, Moxifloxacin
Drug
Lead sponsor
ViiV Healthcare
Industry
Eligibility
18 Years to 50 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Dec 5, 2023 · Synced Jul 21, 2026, 9:31 PM EDT
Completed No phase listed Observational

Electrocardiographic Diagnostic Performance of the Apple Watch Augmented With an Artificial Intelligence Algorithm

NCT05167058
View directory record Official record
Conditions
Atrial Fibrillation, Tachycardia, Bradycardia, Premature Supraventricular Beat, Premature Ventricular Contraction
Interventions
Cardiologs Platform
Device
Lead sponsor
Cardiologs Technologies
Industry
Eligibility
18 Years and older
Enrollment
220 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
3
States / cities
Hackensack, New Jersey • Ridgewood, New Jersey • New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 2, 2023 · Synced Jul 21, 2026, 9:31 PM EDT
Completed Phase 3 Interventional Results available

Safety Study of Etripamil Nasal Spray for Patients With Paroxysmal Supraventricular Tachycardia. NODE-303

NCT04072835
View directory record Official record
Conditions
Paroxysmal Supraventricular Tachycardia
Interventions
Etripamil NS
Drug
Lead sponsor
Milestone Pharmaceuticals Inc.
Other
Eligibility
18 Years and older
Enrollment
1,116 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
61
States / cities
Gilbert, Arizona • Fremont, California • Stanford, California + 54 more
Source: ClinicalTrials.gov public record
Updated May 22, 2024 · Synced Jul 21, 2026, 9:31 PM EDT
Completed Not applicable Interventional Results available

Safety and Clinical Performance of the Protecta ICD and CRT-D

NCT00982397
View directory record Official record
Conditions
Tachyarrhythmias, Heart Failure, Ventricular Dysfunction
Interventions
Protecta VR-ICD, Protecta DR-ICD or CRT-D
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
Not listed
Enrollment
2,770 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
29
States / cities
Birmingham, Alabama • Mesa, Arizona • Fort Smith, Arkansas + 26 more
Source: ClinicalTrials.gov public record
Updated Nov 5, 2017 · Synced Jul 21, 2026, 9:31 PM EDT
Recruiting No phase listed Observational

Role of Novel ILR in the Management of PVCs

NCT06060548
View directory record Official record
Conditions
PVC - Premature Ventricular Contraction, Myocarditis
Interventions
Monitoring of patients presenting with PVCs
Other
Lead sponsor
Kansas City Heart Rhythm Research Foundation
Other
Eligibility
18 Years and older
Enrollment
50 participants
Timeline
2022 – 2025
U.S. locations
6
States / cities
Overland Park, Kansas • Independence, Missouri • Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 27, 2025 · Synced Jul 21, 2026, 9:31 PM EDT
Active, not recruiting Not applicable Interventional Results available

Effectiveness of the EMPOWER™ Modular Pacing System and EMBLEM™ Subcutaneous ICD to Communicate Antitachycardia Pacing

NCT04798768
View directory record Official record
Conditions
Tachycardia, Ventricular, Arrhythmia, Ventricular
Interventions
mCRM Therapy System
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
297 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2030
U.S. locations
18
States / cities
Phoenix, Arizona • Scottsdale, Arizona • Jonesboro, Arkansas + 14 more
Source: ClinicalTrials.gov public record
Updated Jun 25, 2026 · Synced Jul 21, 2026, 9:31 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 7, 2022 · Synced Jul 21, 2026, 9:31 PM EDT
Recruiting Not applicable Interventional

Randomized Assessment of TcMS for VT Storm

NCT05599022
View directory record Official record
Conditions
Ventricular Tachycardia
Interventions
Magnetic Stimulation
Device
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 20, 2026 · Synced Jul 21, 2026, 9:31 PM EDT
Terminated Not applicable Interventional

Unpinning Termination Therapy for VT (US)

NCT03093051
View directory record Official record
Conditions
Ventricular Tachycardia
Interventions
Unpinning Termination therapy
Device
Lead sponsor
Cardialen, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
7
States / cities
Sacramento, California • Des Moines, Iowa • Minneapolis, Minnesota + 3 more
Source: ClinicalTrials.gov public record
Updated Oct 9, 2022 · Synced Jul 21, 2026, 9:31 PM EDT
Completed Not applicable Interventional Results available

Clinical Study to Evaluate the Catheter Robotics Amigo for Performing Right-Sided Electrophysiology Mapping Studies

NCT01139814
View directory record Official record
Conditions
Atrial Flutter, Ventricular Tachycardia
Interventions
Amigo catheter robot
Device
Lead sponsor
Catheter Robotics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
181 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
11
States / cities
Newport Beach, California • Redwood City, California • Chicago, Illinois + 8 more
Source: ClinicalTrials.gov public record
Updated Apr 10, 2013 · Synced Jul 21, 2026, 9:31 PM EDT
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 9, 2013 · Synced Jul 21, 2026, 9:31 PM EDT
Completed No phase listed Observational

Risk of Life-threatening Heart Rhythm Disturbances in Siblings

NCT00498524
View directory record Official record
Conditions
Defibrillators, Implantable, Myocardial Infarction, Tachycardias, Ventricular
Interventions
ICD
Device
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
2,047 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 6, 2012 · Synced Jul 21, 2026, 9:31 PM EDT
Completed Phase 2 Interventional Results available

Efficacy and Safety of Intranasal MSP-2017 (Etripamil) for the Conversion of PSVT to Sinus Rhythm

NCT02296190
View directory record Official record
Conditions
Paroxysmal Supraventricular Tachycardia (PSVT)
Interventions
Etripamil, Placebo
Drug
Lead sponsor
Milestone Pharmaceuticals Inc.
Other
Eligibility
18 Years and older
Enrollment
199 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
26
States / cities
Phoenix, Arizona • Sacramento, California • Littleton, Colorado + 19 more
Source: ClinicalTrials.gov public record
Updated Dec 29, 2020 · Synced Jul 21, 2026, 9:31 PM EDT
Recruiting No phase listed Observational

Cardioneuroablation for Recurrent Vasovagal Syncope and Bradyarrhythmias: The CNA-FWRD Registry

NCT06166277
View directory record Official record
Conditions
Vasovagal Syncope, AV Block-2Nd Degree-Type 1, Sinus Pause
Interventions
Ablation procedure
Procedure
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years to 60 Years
Enrollment
300 participants
Timeline
2024 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 17, 2025 · Synced Jul 21, 2026, 9:31 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Reducing the Risk of Drug-Induced QT Interval Lengthening in Women

NCT03834883
View directory record Official record
Conditions
Long QT Syndrome, Abnormalities, Drug-Induced
Interventions
Progesterone, Ibutilide
Drug
Lead sponsor
Indiana University
Other
Eligibility
21 Years and older · Female only
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Jun 30, 2025 · Synced Jul 21, 2026, 9:31 PM EDT
Terminated Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Study of LQT-1213 on QTc-induced Prolongation in Healthy Adult Subjects (Part1) and on Congenital Long QT in Patients Diagnosed With Type 2 or 3 Long QT Syndrome (Part 2).

NCT05906732
View directory record Official record
Conditions
Long QT Syndrome
Interventions
LQT-1213, Placebo, Dofetilide 250 μg Cap
Drug
Lead sponsor
Thryv Therapeutics, Inc.
Industry
Eligibility
18 Years to 60 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
West Bend, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jul 23, 2025 · Synced Jul 21, 2026, 9:31 PM EDT
Withdrawn Not applicable Interventional

Ventricular Arrhythmia Ablation With the Use of Non-Invasive ECG Imaging Technology

NCT04219501
View directory record Official record
Conditions
Premature Ventricular Contraction, Ventricular Tachycardia
Interventions
VIVO
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Mar 7, 2021 · Synced Jul 21, 2026, 9:31 PM EDT
Completed Not applicable Interventional Results available

Suture Closure AFtEr VEIN Access for Cardiac Procedures (SAFE-VEIN) Trial

NCT04632641
View directory record Official record
Conditions
Atrial Fibrillation, Atrial Flutter, Heart Block, Pulmonary Embolism and Thrombosis, Mitral Valve Repair, Sinus Node Dysfunction, Bradycardia, Brady-tachy Syndrome
Interventions
Perclose ProGlide Suture-Mediated Closure System (SMC) - LARGE-BORE PROCEDURES, Figure 8 Suture - LARGE-BORE PROCEDURES
Device · Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
107 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 2, 2024 · Synced Jul 21, 2026, 9:31 PM EDT
Recruiting No phase listed Observational

PERceptions of Diltiazem Versus ADEnosine for Treatment of Supraventricular Tachycardia in the Emergency Department

NCT07086560
View directory record Official record
Conditions
Supraventricular Tachycardia (SVT)
Interventions
IV adenosine, IV diltiazem
Drug
Lead sponsor
University of Iowa
Other
Eligibility
18 Years to 100 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Jul 21, 2026, 9:31 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

The MARY-JANE Cannabis and Heart Rhythm Trial

NCT06021613
View directory record Official record
Conditions
Premature Atrial Contractions, Premature Ventricular Contractions
Interventions
Randomized instructions
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
2
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 28, 2025 · Synced Jul 21, 2026, 9:31 PM EDT