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ClinicalTrials.gov public records Last synced Oct 21, 2026, 3:36 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 217–240 of 255 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Defibrillators Clear all
Not yet recruiting Not applicable Interventional

Early Feasibility Study of 3930M Defibrillation Lead Implantation Via the Middle Cardiac Vein in Patients With Tricuspid Valve Regurgitation

NCT07811609
View directory record Official record
Conditions
Defibrillator, Tricuspid Valve Regurgitation
Interventions
Defibrillator
Device
Lead sponsor
Minneapolis Heart Institute Foundation
Other
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Oct 21, 2026, 3:36 PM EDT
Completed No phase listed Observational

Sensing Atrial High Rate Episodes With Implantable Cardioverter-Defibrillators Trial (The SENSE Trial)

NCT02186704
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
ICD with DX system
Device
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
450 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
8
States / cities
Birmingham, Alabama • Boston, Massachusetts • New York, New York + 5 more
Source: ClinicalTrials.gov public record
Updated Aug 28, 2018 · Synced Oct 21, 2026, 3:36 PM EDT
Completed Not applicable Interventional

Same Day Discharge (SDD) After Implantable Cardioverter Defibrillator (ICD) Implant

NCT01993862
View directory record Official record
Conditions
Heart Failure, Coronary Artery Disease
Interventions
Same Day Discharge
Other
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
266 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
28
States / cities
Huntsville, Alabama • Mobile, Alabama • Phoenix, Arizona + 23 more
Source: ClinicalTrials.gov public record
Updated Feb 4, 2019 · Synced Oct 21, 2026, 3:36 PM EDT
Recruiting No phase listed Observational

Left Ventricular Structural Predictors of Sudden Cardiac Death

NCT01076660
View directory record Official record
Conditions
Ischemic Cardiomyopathy, Nonischemic Cardiomyopathy
Interventions
Not listed
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 80 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2030
U.S. locations
2
States / cities
Newark, Delaware • Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 20, 2026 · Synced Oct 21, 2026, 3:36 PM EDT
Not listed No phase listed Observational

Does Lung Impedance Correlate With Changes in BNP in Stable and Acutely Decompensated Heart Failure Patients?

NCT00560339
View directory record Official record
Conditions
Congestive Heart Failure
Interventions
Not listed
Lead sponsor
Southern New Jersey Cardiac Specialists
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
6
States / cities
Glendale, California • Voorhees Township, New Jersey • Roslyn, New York + 3 more
Source: ClinicalTrials.gov public record
Updated Nov 19, 2007 · Synced Oct 21, 2026, 3:36 PM EDT
Completed Not applicable Interventional Results available

Evaluating Myocardial Injury for Defibrillation Threshold Testing Methods for ICD Implantation

NCT02111993
View directory record Official record
Conditions
Cardiomyopathy, Heart Failure, Cardiac Arrhythmia
Interventions
Standard Defibrillation Testing, Upper Limit of Vulnerability Testing
Device
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated May 22, 2019 · Synced Oct 21, 2026, 3:36 PM EDT
Completed No phase listed Observational Results available

Heart Failure Optimization Study

NCT03016754
View directory record Official record
Conditions
Sudden Cardiac Death, Sudden Cardiac Arrest, Heart Failure, Heart Failure Low Output
Interventions
Wearable Cardioverter Defibrillator
Device
Lead sponsor
Zoll Medical Corporation
Industry
Eligibility
18 Years and older
Enrollment
602 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
39
States / cities
Birmingham, Alabama • West Hills, California • Fernandina Beach, Florida + 34 more
Source: ClinicalTrials.gov public record
Updated Mar 24, 2025 · Synced Oct 21, 2026, 3:36 PM EDT
Completed No phase listed Observational

Deactivation of Implantable Cardioverter Defibrillator During Non-thoracic Surgical Procedures

NCT00806377
View directory record Official record
Conditions
Implantable Cardioverter-Defibrillators
Interventions
Not listed
Lead sponsor
Minneapolis Heart Institute Foundation
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated May 31, 2017 · Synced Oct 21, 2026, 3:36 PM EDT
Completed No phase listed Observational

Myocardial Injury in Patients With Cardiac Implantable Electronic Devices Following Magnetic Resonance Imaging

NCT04151953
View directory record Official record
Conditions
Magnetic Resonance Imaging (MRI)
Interventions
Blood sample collection
Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 5, 2022 · Synced Oct 21, 2026, 3:36 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Transvenous Lead Removal Post-Market Clinical Study

NCT03688412
View directory record Official record
Conditions
Cardiac Electrophysiology
Interventions
Cook lead extraction devices
Device
Lead sponsor
Cook Research Incorporated
Industry
Eligibility
18 Years and older
Enrollment
230 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
6
States / cities
San Francisco, California • Urbana, Illinois • Raleigh, North Carolina + 3 more
Source: ClinicalTrials.gov public record
Updated May 28, 2020 · Synced Oct 21, 2026, 3:36 PM EDT
Terminated No phase listed Observational Results available

Arrythmia Burden in Cardiac Contractility Modulation (CCM)

NCT05704426
View directory record Official record
Conditions
Atrial Fibrillation, Arrythmia
Interventions
Impulse Dynamics Optimizer Device
Device
Lead sponsor
Hackensack Meridian Health
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Hackensack, New Jersey
Source: ClinicalTrials.gov public record
Updated Aug 19, 2024 · Synced Oct 21, 2026, 3:36 PM EDT
Recruiting No phase listed Observational

Ambulatory Surgical Center Implantable Cardioverter-Defibrillator Outcomes Registry

NCT03604133
View directory record Official record
Conditions
Arrhythmia
Interventions
Not listed
Lead sponsor
QuesGen Systems Inc
Other
Eligibility
Not listed
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2028
U.S. locations
1
States / cities
Lehi, Utah
Source: ClinicalTrials.gov public record
Updated Jan 22, 2021 · Synced Oct 21, 2026, 3:36 PM EDT
Recruiting No phase listed Observational

Implantable Cardioverter Defibrillator (ICD Registry)

NCT01999140
View directory record Official record
Conditions
Heart Failure, Nonischemic Cardiomyopathy, Ischemic Cardiomyopathy, Ventricular Arrhythmia, Complications; Device, Cardiac
Interventions
Not listed
Lead sponsor
American College of Cardiology
Other
Eligibility
Not listed
Enrollment
1,750 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2030
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Apr 18, 2024 · Synced Oct 21, 2026, 3:36 PM EDT
Completed No phase listed Observational

Surface Electrocardiogram (ECG) Signal Recording for Implantable Subcutaneous String Defibrillator (ISSD) Development

NCT02991716
View directory record Official record
Conditions
Arrhythmia, Cardiac
Interventions
recorded patients
Other
Lead sponsor
NewPace Ltd
Industry
Eligibility
Not listed
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Atlantis, Florida
Source: ClinicalTrials.gov public record
Updated Jan 17, 2018 · Synced Oct 21, 2026, 3:36 PM EDT
Completed Not applicable Interventional

A Randomised Trial of S-ICD Implantation With and Without Defibrillation Testing

NCT03495297
View directory record Official record
Conditions
Ventricular Arrythmia
Interventions
ommitence of defibrillation testing
Procedure
Lead sponsor
Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
Other
Eligibility
18 Years and older
Enrollment
965 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2025
U.S. locations
7
States / cities
Orlando, Florida • Atlanta, Georgia • Chicago, Illinois + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Oct 21, 2026, 3:36 PM EDT
Completed Not applicable Interventional

Feasibility Study of an Integrated Diagnostic System to Manage Heart Failure

NCT01045343
View directory record Official record
Conditions
Heart Failure
Interventions
Integrated diagnositic system, Routine in office visits
Other
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
136 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
13
States / cities
Anchorage, Alaska • Aurora, Colorado • Tampa, Florida + 10 more
Source: ClinicalTrials.gov public record
Updated Apr 17, 2012 · Synced Oct 21, 2026, 3:36 PM EDT
Not listed Phase 1 Interventional

Autologous Cultured Myoblasts (BioWhittaker) Transplanted Via Myocardial Injection

NCT00050765
View directory record Official record
Conditions
Congestive Heart Failure, Coronary Artery Disease, Myocardial Infarction
Interventions
MyoCell™ Autologous Myoblasts
Drug
Lead sponsor
Bioheart, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006
U.S. locations
5
States / cities
Fort Lauderdale, Florida • Atlanta, Georgia • Chicago, Illinois + 2 more
Source: ClinicalTrials.gov public record
Updated Mar 8, 2006 · Synced Oct 21, 2026, 3:36 PM EDT
Not listed Not applicable Interventional

Insulation Failure in St. Jude Riata Leads

NCT02095977
View directory record Official record
Conditions
Implanted With Any Currently (and Any Future) FDA-approved Medtronic ICD or CRT Device, to Which is Attached a St. Jude Riata Lead
Interventions
fluoroscopy, synchronized high-voltage shock, Holter monitor
Procedure
Lead sponsor
Hartford Hospital
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 8, 2017 · Synced Oct 21, 2026, 3:36 PM EDT
Completed Not applicable Interventional Results available

Promote Q Cardiac Resynchronization Therapy Defibrillator (CRT-D) and Quartet Left Ventricular Heart Lead Study

NCT00990665
View directory record Official record
Conditions
Heart Failure
Interventions
CRT-D and LV lead (Quartet™ lead and Promote Q® device system)
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
178 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
24
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Glendale, California + 20 more
Source: ClinicalTrials.gov public record
Updated Feb 27, 2019 · Synced Oct 21, 2026, 3:36 PM EDT
Completed Not applicable Interventional Results available

Same Day Subcutaneous ICD And Send Home (DASH)

NCT03504839
View directory record Official record
Conditions
Cardiomyopathies, Cardiac Death, Sudden
Interventions
Subcutaneous ICD with same day discharge
Device
Lead sponsor
Emile Daoud, MD
Other
Eligibility
18 Years and older
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 23, 2021 · Synced Oct 21, 2026, 3:36 PM EDT
Completed No phase listed Observational Results available

SJ4 Post Approval Study in Implantable Cardioverter-Defibrillator and Cardiac Resynchronization Therapy Defibrillator Patients

NCT00940888
View directory record Official record
Conditions
Tachyarrhythmias, Sudden Cardiac Death, Heart Failure
Interventions
SJ4 connector and RV high voltage SJ4 lead
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
1,701 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 4, 2019 · Synced Oct 21, 2026, 3:36 PM EDT
Completed Not applicable Interventional Results available

CONNECT Study - Clinical Evaluation Of Remote NotificatioN to rEduCe Time to Clinical Decision

NCT00402246
View directory record Official record
Conditions
Arrhythmia, Tachycardia, Atrial Fibrillation, Ventricular Fibrillation
Interventions
Remote Management, In-Office Care
Other
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
2,009 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
127
States / cities
Mobile, Alabama • Mesa, Arizona • Scottsdale, Arizona + 124 more
Source: ClinicalTrials.gov public record
Updated Feb 25, 2011 · Synced Oct 21, 2026, 3:36 PM EDT
Completed Phase 2 Interventional Results available

Pilot Randomized Trial With Flecainide in ARVC Patients

NCT03685149
View directory record Official record
Conditions
Arrhythmogenic Right Ventricular Cardiomyopathy
Interventions
Flecainide Pill, Placebo
Drug
Lead sponsor
University of Rochester
Other
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
6
States / cities
Denver, Colorado • Baltimore, Maryland • New York, New York + 3 more
Source: ClinicalTrials.gov public record
Updated Aug 20, 2024 · Synced Oct 21, 2026, 3:36 PM EDT
Terminated Not applicable Interventional Results available

Pilot Study of Catheter Ablation for Ventricular Tachycardia in Patients With an Implantable Cardioverter Defibrillator

NCT01576042
View directory record Official record
Conditions
Ventricular Tachycardia
Interventions
amiodarone, sotalol, Biosense Webster's NAVI-STAR Thermo-Cool
Drug · Device
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
5
States / cities
Baltimore, Maryland • Durham, North Carolina • Columbus, Ohio + 2 more
Source: ClinicalTrials.gov public record
Updated Oct 16, 2014 · Synced Oct 21, 2026, 3:36 PM EDT