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ClinicalTrials.gov public records Last synced Oct 21, 2026, 11:51 AM EDT

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Showing 1–24 of 100 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Ventricular Fibrillation Clear all
Completed Not applicable Interventional

SAVEPACe - Search AV Extension and Managed Ventricular Pacing for Promoting Atrio-Ventricular Conduction

NCT00284830
View directory record Official record
Conditions
Sick Sinus Syndrome, Heart Failure, Congestive, Atrial Fibrillation, Bradycardia, Ventricular Dysfunction
Interventions
Implantable Pulse Generators
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
1,070 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
63
States / cities
Phoenix, Arizona • Scottsdale, Arizona • Conway, Arkansas + 60 more
Source: ClinicalTrials.gov public record
Updated Feb 29, 2008 · Synced Oct 21, 2026, 11:51 AM EDT
Not listed Phase 4 Interventional

Safety of Amiodarone and Ranolazine Together in Patients With Angina

NCT01558830
View directory record Official record
Conditions
Chronic Stable Angina, Coronary Artery Disease, Atrial Fibrillation, Ventricular Tachycardia
Interventions
ranolazine, placebo
Drug
Lead sponsor
Cardiovascular Consultants of Nevada
Other
Eligibility
35 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
3
States / cities
Henderson, Nevada • Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Mar 21, 2012 · Synced Oct 21, 2026, 11:51 AM EDT
Recruiting Phase 3 Interventional

ReVeRA-301: Etripamil in Atrial Fibrillation Phase 3

NCT06716021
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Placebo, Etripamil
Drug
Lead sponsor
Milestone Pharmaceuticals Inc.
Other
Eligibility
18 Years and older
Enrollment
750 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
4
States / cities
West Hills, California • Littleton, Colorado • Haddon Heights, New Jersey + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 7, 2026 · Synced Oct 21, 2026, 11:51 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, 11:51 AM 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 21, 2026, 11:51 AM EDT
Terminated Phase 2 Interventional Results available

The Use of Ranolazine for Atrial Fibrillation and Diastolic Heart Failure

NCT01887353
View directory record Official record
Conditions
Atrial Fibrillation, Heart Failure
Interventions
Ranolazine, Placebo
Drug
Lead sponsor
Intermountain Health Care, Inc.
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Murray, Utah
Source: ClinicalTrials.gov public record
Updated Jul 20, 2015 · Synced Oct 21, 2026, 11:51 AM EDT
Terminated No phase listed Observational

Activation Timing and Atrial Fibrillation

NCT02063191
View directory record Official record
Conditions
Arrhythmias, Cardiac, Atrial Fibrillation, Bundle Branch Block
Interventions
Not listed
Lead sponsor
Essentia Health
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
1
States / cities
Duluth, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 4, 2014 · Synced Oct 21, 2026, 11:51 AM 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 Oct 21, 2026, 11:51 AM EDT
Active, not recruiting Not applicable Interventional

Assessment of Combined CCM and ICD Device in HFrEF

NCT05855135
View directory record Official record
Conditions
Heart Failure, Heart Failure With Reduced Ejection Fraction, Implantable Defibrillator User, CCM Therapy, Non-ischemic Cardiomyopathy, Ischemic Cardiomyopathy, Sudden Cardiac Arrest, Arrhythmias, Cardiac, Ventricular Tachycardia, Ventricular Fibrillation
Interventions
OPTIMIZER® Integra CCM-D System (Treatment Arm)
Device
Lead sponsor
Impulse Dynamics
Industry
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
59
States / cities
Glendale, Arizona • Mesa, Arizona • Phoenix, Arizona + 40 more
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Oct 21, 2026, 11:51 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 7, 2024 · Synced Oct 21, 2026, 11:51 AM EDT
Completed Phase 3 Interventional Results available

Vein of Marshall Ethanol Infusion for Persistent Atrial Fibrillation

NCT01898221
View directory record Official record
Conditions
Ventricular Tachycardia, Atrial Fibrillation
Interventions
Ethanol, Ablation
Drug · Procedure
Lead sponsor
The Methodist Hospital Research Institute
Other
Eligibility
18 Years to 85 Years
Enrollment
343 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
12
States / cities
Phoenix, Arizona • Los Angeles, California • San Diego, California + 7 more
Source: ClinicalTrials.gov public record
Updated Aug 21, 2025 · Synced Oct 21, 2026, 11:51 AM EDT
Terminated Not applicable Interventional Results available

ACCESS to the Cardiac Cath Lab in Patients Without STEMI Resuscitated From Out-of-hospital VT/VF Cardiac Arrest

NCT03119571
View directory record Official record
Conditions
Cardiac Arrest Due to Underlying Cardiac Condition, Ventricular Fibrillation, Cardiopulmonary Arrest With Successful Resuscitation
Interventions
Initial CCL admission, Initial ICU admission
Procedure · Diagnostic Test
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 75 Years
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
21
States / cities
Atlanta, Georgia • Indianapolis, Indiana • Ann Arbor, Michigan + 14 more
Source: ClinicalTrials.gov public record
Updated Jan 27, 2021 · Synced Oct 21, 2026, 11:51 AM 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 21, 2026, 11:51 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Development of CIRC Technologies

NCT05654272
View directory record Official record
Conditions
Cardiovascular Diseases, Heart Failure, Ischemic Heart Disease, Non-ischemic Cardiomyopathy, Valvular Heart Disease, Metabolic Cardiomyopathy, Congenital Heart Disease, Aortic Diseases, Atrial Fibrillation, Ventricular Fibrillation
Interventions
MRI
Diagnostic Test
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2042
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated May 8, 2026 · Synced Oct 21, 2026, 11:51 AM EDT
Recruiting No phase listed Observational

Defining the Risk of Ventricular Tachycardia in Genetic Cardiomyopathies

NCT06575881
View directory record Official record
Conditions
Atrial Fibrillation, Ventricular Tachycardia, Premature Ventricular Contraction
Interventions
Not listed
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Oct 21, 2026, 11:51 AM EDT
Completed Not applicable Interventional

SmartCPR Trial: An Analysis of a Waveform-Based Automated External Defibrillation (AED) Algorithm on Survival From Out-of-Hospital Ventricular Fibrillation

NCT00535106
View directory record Official record
Conditions
Ventricular Fibrillation, Cardiac Arrest
Interventions
Automated external defibrillator (Philips FR2+ AED), SmartCPR, Delayed defibrillation
Device · Other
Lead sponsor
New York City Fire Department
Government
Eligibility
Not listed
Enrollment
900 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 19, 2009 · Synced Oct 21, 2026, 11:51 AM EDT
Not listed No phase listed Observational

Gut Microbiome and Ventricular Arrhythmias

NCT04466072
View directory record Official record
Conditions
Ventricular Tachycardia, Ventricular Fibrillation, Gut Microbiome
Interventions
Stool test for microbial analysis
Diagnostic Test
Lead sponsor
North Florida Foundation for Research and Education
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Apr 18, 2022 · Synced Oct 21, 2026, 11:51 AM EDT
Not listed No phase listed Observational

SCD-HeFT 10 Year Follow-up

NCT01058837
View directory record Official record
Conditions
Left Ventricular Systolic Dysfunction, Congestive Heart Failure, Ischemic and Non-ischemic Cardiomyopathy, Sudden Cardiac Death Primary Prevention
Interventions
Not listed
Lead sponsor
Seattle Institute for Cardiac Research
Other
Eligibility
18 Years to 90 Years
Enrollment
1,855 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Bellevue, Washington
Source: ClinicalTrials.gov public record
Updated Feb 11, 2010 · Synced Oct 21, 2026, 11:51 AM EDT
Completed No phase listed Observational

Vfib by ECG or Echo During Cardiac Arrest

NCT04906252
View directory record Official record
Conditions
Cardiac Arrest
Interventions
Echocardiography, Electrocardiogram (ECG)
Diagnostic Test
Lead sponsor
Romolo Gaspari
Other
Eligibility
18 Years and older
Enrollment
813 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
6
States / cities
Hartford, Connecticut • Lebanon, New Hampshire • Stony Brook, New York + 3 more
Source: ClinicalTrials.gov public record
Updated Apr 2, 2025 · Synced Oct 21, 2026, 11:51 AM EDT
Completed No phase listed Observational

First Arrhythmia Collection of Transvenous and Simultaneous Subcutaneous Implantable Defibrillator Data

NCT01161589
View directory record Official record
Conditions
Ventricular Tachycardia, Ventricular Fibrillation, Atrial Fibrillation
Interventions
Not listed
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
142 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
3
States / cities
Chicago, Illinois • Charleston, South Carolina • Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Feb 16, 2017 · Synced Oct 21, 2026, 11:51 AM 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 Oct 21, 2026, 11:51 AM EDT
Terminated Not applicable Interventional Results available

Pediatric Lead Extractability and Survival Evaluation (PLEASE)

NCT00335036
View directory record Official record
Conditions
Ventricular Tachycardia, Ventricular Fibrillation, Cardiomyopathy, Long QT Syndrome, Congenital Heart Disease
Interventions
ICD lead implant, Thin leads
Device
Lead sponsor
Charles Berul
Other
Eligibility
1 Year to 55 Years
Enrollment
748 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 19, 2026 · Synced Oct 21, 2026, 11:51 AM EDT
Completed No phase listed Observational

Prognostic Significance of T Wave Alternans

NCT00006501
View directory record Official record
Conditions
Heart Diseases, Ventricular Arrhythmia, Ventricular Fibrillation, Death, Sudden, Cardiac, Heart Arrest
Interventions
ECG
Procedure
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
549 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2012
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 23, 2015 · Synced Oct 21, 2026, 11:51 AM EDT
Completed Not applicable Interventional

Evaluation of a Test Algorithm for Use to Analyze ECG Data Collected From a Test Device of a 24-hour Simulated Use Period

NCT07188129
View directory record Official record
Conditions
Atrial Fibrillation (AF), Tachycardia, Bradycardia, PVC - Premature Ventricular Contraction, Premature Atrial Contraction
Interventions
Test Algorithm and Test Device
Device
Lead sponsor
Zywie, Inc.
Industry
Eligibility
18 Years and older
Enrollment
153 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Bozeman, Montana
Source: ClinicalTrials.gov public record
Updated Sep 23, 2025 · Synced Oct 21, 2026, 11:51 AM EDT