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ClinicalTrials.gov public records Last synced Oct 21, 2026, 5:44 AM EDT

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Showing 1–24 of 38 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Tachyarrhythmia Clear all
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 21, 2026, 5:44 AM EDT
Completed No phase listed Observational Results available

The Dynamics of Human Atrial Fibrillation

NCT01008722
View directory record Official record
Conditions
Atrial Fibrillation, Atrial Tachyarrhythmia
Interventions
Not listed
Lead sponsor
University of California, San Diego
Other
Eligibility
21 Years to 80 Years
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
2
States / cities
La Jolla, California • San Diego, California
Source: ClinicalTrials.gov public record
Updated Feb 8, 2017 · Synced Oct 21, 2026, 5:44 AM EDT
Terminated Phase 2 Interventional Results available

Treatment of Ventricular Tachyarrhythmias Refractory To Shock With Beta Blockers: The SHOCK and BLOCK Trial

NCT00401882
View directory record Official record
Conditions
Cardiac Arrest, Sudden Cardiac Death, Ventricular Fibrillation, Tachycardia, Ventricular
Interventions
Epinephrine, Metoprolol
Drug
Lead sponsor
David Haines, MD
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
Royal Oak, Michigan
Source: ClinicalTrials.gov public record
Updated May 25, 2017 · Synced Oct 21, 2026, 5:44 AM EDT
Not listed Phase 1Phase 2 Interventional

The REACT-ICD Trial

NCT02439424
View directory record Official record
Conditions
Atrial Tachyarrhythmia, Atrial Fibrillation
Interventions
Reactive ATP
Device
Lead sponsor
Hartford Hospital
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Dec 23, 2016 · Synced Oct 21, 2026, 5:44 AM 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 21, 2026, 5:44 AM EDT
Completed Phase 4 Interventional Results available

Effect of Nebulized Bronchodilators on Heart Rate

NCT01151579
View directory record Official record
Conditions
COPD, Sepsis, Shock
Interventions
Levalbuterol, Albuterol
Drug
Lead sponsor
Fahim Khorfan, MD
Industry
Eligibility
18 Years and older
Enrollment
89 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Grand Blanc, Michigan
Source: ClinicalTrials.gov public record
Updated Oct 23, 2015 · Synced Oct 21, 2026, 5:44 AM EDT
Not listed Not applicable Interventional

Substrate Versus Trigger Ablation for Paroxysmal Atrial Fibrillation

NCT02169037
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
FIRM Ablation, Conventional AF ablation with PVI
Procedure
Lead sponsor
University of California, San Diego
Other
Eligibility
21 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
2
States / cities
Palo Alto, California • San Diego, California
Source: ClinicalTrials.gov public record
Updated Jun 4, 2021 · Synced Oct 21, 2026, 5:44 AM EDT
Completed Not applicable Interventional

Evaluation of Conventional Ablation With or Without Focal Impulse and Rotor Modulation to Eliminate Human AF

NCT02456233
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Conventional AF Ablation with PVI, FIRM-guided ablation plus PVI
Procedure
Lead sponsor
Stanford University
Other
Eligibility
22 Years and older
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2025
U.S. locations
2
States / cities
San Diego, California • Stanford, California
Source: ClinicalTrials.gov public record
Updated Mar 4, 2025 · Synced Oct 21, 2026, 5:44 AM EDT
Completed No phase listed Observational

Surface ECG Signal Recording for the Implantable Subcutaneous String Defibrillator (ISSD) Detection Algorithm Performance Assessment

NCT03408951
View directory record Official record
Conditions
Tachyarrhythmia, Arrhythmias, Cardiac
Interventions
Recording
Other
Lead sponsor
NewPace Ltd
Industry
Eligibility
18 Years and older
Enrollment
91 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Roslyn, New York
Source: ClinicalTrials.gov public record
Updated Aug 21, 2019 · Synced Oct 21, 2026, 5:44 AM EDT
Completed Not applicable Interventional

Lead EvaluAtion for Defibrillation and Reliability (LEADR) / Lead Evaluation for Defibrillation and Reliability in Left Bundle Branch Area Pacing (LEADR LBBAP)

NCT04863664
View directory record Official record
Conditions
Tachyarrhythmia
Interventions
Defibrillation (RV Implant), Defibrillation (LBBAP Implant)
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
12 Years and older
Enrollment
998 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
23
States / cities
Huntsville, Alabama • Torrance, California • Hartford, Connecticut + 19 more
Source: ClinicalTrials.gov public record
Updated Dec 9, 2025 · Synced Oct 21, 2026, 5:44 AM EDT
Completed No phase listed Observational

Ablation of Ventricular Fibrillation by Accurate Targeting of Arrhythmogenic Regions (AVATAR)

NCT01492764
View directory record Official record
Conditions
Ventricular Tachyarrhythmias
Interventions
Not listed
Lead sponsor
University of California, San Diego
Other
Eligibility
21 Years to 90 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
2
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Nov 18, 2019 · Synced Oct 21, 2026, 5:44 AM EDT
Completed Not applicable Interventional Results available

The HOLIDAY (HOw ALcohol InDuces Atrial TachYarrhythmias) Study

NCT01996943
View directory record Official record
Conditions
Atrial Fibrillation, Alcohol
Interventions
Ethanol, Placebo
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years to 81 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2020
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 16, 2021 · Synced Oct 21, 2026, 5:44 AM EDT
Completed Not applicable Interventional Results available

REASSURE AV Registry

NCT01074034
View directory record Official record
Conditions
Sudden Cardiac Death, Bradycardia
Interventions
AV Therapy Assessment-B301 investigational device
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
211 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
36
States / cities
Anchorage, Alaska • Larkspur, California • Orlando, Florida + 32 more
Source: ClinicalTrials.gov public record
Updated Aug 1, 2017 · Synced Oct 21, 2026, 5:44 AM EDT
Completed Not applicable Interventional

Effectiveness of the Eko Digital Stethoscope in Capturing Infant ECGs

NCT06382207
View directory record Official record
Conditions
Tachyarrhythmia
Interventions
Eko Duo electronic stethoscope, CORE 500 electronic stethoscope
Device
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
Up to 1 Year
Enrollment
91 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Oct 21, 2026, 5:44 AM EDT
Completed No phase listed Observational

Study of the Implantable Cardioverter Defibrillator (ICD) Intracardiac Electrograms

NCT00916435
View directory record Official record
Conditions
Congestive Heart Failure, Sudden Cardiac Death, Arrhythmia, Cardiomyopathies
Interventions
Not listed
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
630 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2011
U.S. locations
2
States / cities
Baltimore, Maryland • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 21, 2015 · Synced Oct 21, 2026, 5:44 AM EDT
Completed Not applicable Interventional Results available

Reducing Episodes by Septal Pacing Efficacy Confirmation Trial (RESPECT)

NCT00289289
View directory record Official record
Conditions
Atrial Fibrillation, Tachycardia, Supraventricular, Arrhythmia, Bradycardia
Interventions
Intervention Pacing Features
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
Not listed
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2011
U.S. locations
34
States / cities
Little Rock, Arkansas • Rancho Mirage, California • San Diego, California + 31 more
Source: ClinicalTrials.gov public record
Updated Aug 8, 2012 · Synced Oct 21, 2026, 5:44 AM EDT
Completed Not applicable Interventional Results available

Study of New Implantable Loop Recorder

NCT00746564
View directory record Official record
Conditions
Tachyarrhythmias, Syncope
Interventions
SJM Confirm
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
9
States / cities
Anchorage, Alaska • Scottsdale, Arizona • Little Rock, Arkansas + 6 more
Source: ClinicalTrials.gov public record
Updated Jan 30, 2019 · Synced Oct 21, 2026, 5:44 AM EDT
Completed No phase listed Observational

RATE Registry - Registry of Atrial Tachyarrhythmia/Atrial Fibrillation (AT/AF) Episodes in the Cardiac Rhythm Management (CRM) Device Population

NCT00837798
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
CRM Device
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
5,379 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
1
States / cities
Sylmar, California
Source: ClinicalTrials.gov public record
Updated Feb 4, 2019 · Synced Oct 21, 2026, 5:44 AM 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 Oct 21, 2026, 5:44 AM EDT
Completed No phase listed Observational

Mechanical Alternans Study

NCT01557465
View directory record Official record
Conditions
Ischemic Cardiomyopathy, Nonischemic Cardiomyopathy, Heart Failure
Interventions
Not listed
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
134 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 8, 2015 · Synced Oct 21, 2026, 5:44 AM EDT
Completed Not applicable Interventional Results available

REnal SympathetiC Denervation to sUpprEss Tachyarrhythmias in ICD Recipients

NCT01747837
View directory record Official record
Conditions
Ventricular Tachycardia
Interventions
Boston Scientific Vessix Renal Denervation System
Device
Lead sponsor
Vivek Reddy
Other
Eligibility
18 Years to 85 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
2
States / cities
New York, New York • Austin, Texas
Source: ClinicalTrials.gov public record
Updated Mar 4, 2020 · Synced Oct 21, 2026, 5:44 AM EDT
Not listed Phase 2 Interventional

Botulinum Toxin Injection for Preventing Secondary Atrial Fibrillation in Patient With Supra-ventricular Tachyarrythmias

NCT02008461
View directory record Official record
Conditions
Supra-ventricular Tachyarrhythmias
Interventions
radiofrequency ablation, botulinum toxin injection
Procedure · Drug
Lead sponsor
Meshalkin Research Institute of Pathology of Circulation
Network
Eligibility
18 Years to 70 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Sep 23, 2015 · Synced Oct 21, 2026, 5:44 AM EDT
Not listed Not applicable Interventional

Transcutaneous Vagal Nerve Stimulation to Prevent Tachyarrhythmias in Patients Early Following Myocardial Infarction

NCT05750108
View directory record Official record
Conditions
Myocardial Infarction, Tachyarrhythmia
Interventions
Parasym device (active, current (mA) < discomfort threshold), Parasym device (sham, current (mA) = 0)
Device
Lead sponsor
Hippocration General Hospital
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Mar 1, 2023 · Synced Oct 21, 2026, 5:44 AM EDT