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ClinicalTrials.gov public records Last synced Sep 16, 2026, 3:54 AM EDT

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Showing 1–24 of 194 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Implantable Cardioverter Defibrillator Clear all
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 19, 2024 · Synced Sep 16, 2026, 3:54 AM EDT
Completed Phase 4 Interventional

The Use of Magnesium to Improve Blood Pressure, Cholesterol, and Glucose Control

NCT00282659
View directory record Official record
Conditions
Coronary Artery Disease, Hypertension, Dyslipidemia, Diabetes
Interventions
magnesium L-lactate
Drug
Lead sponsor
Hartford Hospital
Other
Eligibility
18 Years and older
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated May 20, 2019 · Synced Sep 16, 2026, 3:54 AM EDT
Completed No phase listed Observational

iPod and Other MP3 Players on ICDs and Pacemakers in Children

NCT00542854
View directory record Official record
Conditions
Heart Block, Bradycardia, Tachycardia, Arrhythmia
Interventions
MP3
Device
Lead sponsor
Boston Children's Hospital
Other
Eligibility
4 Years to 55 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 27, 2009 · Synced Sep 16, 2026, 3:54 AM EDT
Completed Not applicable Interventional Results available

MADIT-CRT: Multicenter Automatic Defibrillator Implantation With Cardiac Resynchronization Therapy

NCT00180271
View directory record Official record
Conditions
Tachycardia, Congestive Heart Failure
Interventions
Cardiac resynchronization therapy with defibrillation, Implantable Cardioverter Defibrillator (ICD)
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
21 Years and older
Enrollment
1,820 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2010
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Dec 18, 2018 · Synced Sep 16, 2026, 3:54 AM EDT
Completed No phase listed Observational Results available

Extracellular Matrix Marker of Arrhythmia Risk (EMMA)

NCT00376532
View directory record Official record
Conditions
Myocardiopathies, Ischemia, Myocardial, Arrythmia, Death, Sudden, Cardiac
Interventions
Not listed
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 3, 2014 · Synced Sep 16, 2026, 3:54 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 20, 2019 · Synced Sep 16, 2026, 3:54 AM EDT
Completed Not applicable Interventional Results available

Heart Rate Response to Regadenoson and Sudden Cardiac Death

NCT01842035
View directory record Official record
Conditions
Left Ventricular Systolic Dysfunction, Sudden Cardiac Death
Interventions
regadenoson
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
19 Years to 80 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2022
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Oct 17, 2022 · Synced Sep 16, 2026, 3:54 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Advancing Understanding of Transportation Options

NCT04141891
View directory record Official record
Conditions
Diabetic Retinopathy, Macular Degeneration, Glaucoma, Retinitis Pigmentosa, Vision Disorders, Acute Coronary Syndrome, Implantable Defibrillator User, Congestive Heart Failure, Hypertrophic Obstructive Cardiomyopathy, Orthostatic Hypotension, Syncope, Presyncope, Narcolepsy, Dementia, Multiple Sclerosis, Parkinson Disease, Brain Injuries, Spinal Cord Injuries, Stroke, Vertigo, Dizziness, Seizures, Substance Use, Insulin Dependent Diabetes Mellitus, Arthritis, Foot--Abnormalities, Chronic Obstructive Pulmonary Disease, Obstructive Sleep Apnea, End Stage Renal Disease, Sleep Apnea, Insomnia, Restless Legs Syndrome
Interventions
Driving Decision Aid, Older Drivers Website
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years and older
Enrollment
529 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
3
States / cities
La Jolla, California • Aurora, Colorado • Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Feb 20, 2025 · Synced Sep 16, 2026, 3:54 AM EDT
Not yet recruiting Not applicable Interventional

Cardiac Anodal Biphasic Pacing

NCT07173777
View directory record Official record
Conditions
Cardiac Pacing
Interventions
Cardiac Waveform Generator
Device
Lead sponsor
Boston Medical Center
Other
Eligibility
18 Years and older
Enrollment
108 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 27, 2026 · Synced Sep 16, 2026, 3:54 AM EDT
Not listed No phase listed Observational

Electrophysiologic and Morphologic Assessment of the Substrate to Guide Implantation of Defibrillators in Dilated Cardiomyopathy

NCT01378572
View directory record Official record
Conditions
Dilated Cardiomyopathy, Primary Prevention of Sudden Cardiac Death, Implantable Cardioverter Defibrillator
Interventions
Not listed
Lead sponsor
Catholic University of the Sacred Heart
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2009
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jun 21, 2011 · Synced Sep 16, 2026, 3:54 AM EDT
Terminated Not applicable Interventional Results available

ST Monitoring to Detect Acute Coronary Syndrome Events in Implantable Cardioverter Defibrillator Patients

NCT01424722
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
Fortify® ST, Fortify Assura® ST, Ellipse® ST family of devices
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
2,258 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2017
U.S. locations
97
States / cities
Birmingham, Alabama • Huntsville, Alabama • Mesa, Arizona + 85 more
Source: ClinicalTrials.gov public record
Updated Jan 27, 2021 · Synced Sep 16, 2026, 3:54 AM EDT
Completed No phase listed Observational

Safety and Clinical Outcomes of Magnetic Resonance Imaging in Patients With Cardiac Implantable Electrical Devices

NCT03016429
View directory record Official record
Conditions
Cardiac Disease
Interventions
Not listed
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
1,169 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 19, 2022 · Synced Sep 16, 2026, 3:54 AM EDT
Completed Not applicable Interventional Results available

RF Surgical Sponge-Detecting System on the Function of Pacemakers and Implantable Cardioverter Defibrillators

NCT02111980
View directory record Official record
Conditions
Cardiomyopathy, Cardiac Arrhythmia, Heart Failure, Chronic Thromboembolic Pulmonary Hypertension
Interventions
RF Assure Scanning
Device
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Dec 23, 2019 · Synced Sep 16, 2026, 3:54 AM EDT
Completed No phase listed Observational

Implantable Cardioverter Defibrillator (ICD) Function During Ventricular Assist Device (VAD) Implantation

NCT01576562
View directory record Official record
Conditions
Heart Failure
Interventions
Not listed
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 7, 2017 · Synced Sep 16, 2026, 3:54 AM EDT
Withdrawn Not applicable Interventional

Dance4Healing: Explore the Benefits of Tele-Dance in Individuals with an Implantable Cardioverter-defibrillator (ICD)

NCT04678128
View directory record Official record
Conditions
ICD, Anxiety, Patient Engagement
Interventions
Dance4Healing Telehealth Live Zoom Sessions, Dance Buddy
Behavioral
Lead sponsor
Sanjiv Narayan, MD, PhD
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Dec 1, 2024 · Synced Sep 16, 2026, 3:54 AM EDT
Withdrawn Phase 2 Interventional

Trial to Determine Imaging Parameters of LMI1195 in Heart Failure Patients at Low and High Risk of Defibrillator Firing

NCT01085175
View directory record Official record
Conditions
Heart Failure
Interventions
LMI 1195
Drug
Lead sponsor
Lantheus Medical Imaging
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 13, 2015 · Synced Sep 16, 2026, 3:54 AM EDT
Completed No phase listed Observational

Effects of Monopolar Electrocautery Use During Surgery on Implanted Cardiac Defibrillators

NCT01572246
View directory record Official record
Conditions
Heart Failure, Tachycardia, Ventricular
Interventions
Optimal placement of return pad
Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years and older
Enrollment
167 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Feb 23, 2017 · Synced Sep 16, 2026, 3:54 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 15, 2017 · Synced Sep 16, 2026, 3:54 AM EDT
Completed Not applicable Interventional Results available

Multicenter Automatic Defibrillator Implantation Trial - Reduce Inappropriate Therapy

NCT00947310
View directory record Official record
Conditions
Primary Prevention of Sudden Cardiac Arrest
Interventions
Standard ICD programming, High rate cutoff, Long delay
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
21 Years and older
Enrollment
1,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Aug 7, 2018 · Synced Sep 16, 2026, 3:54 AM EDT
Terminated Not applicable Interventional

Comparative Effectiveness of Prophylactic ICD Versus Non-ICD Therapy

NCT06543446
View directory record Official record
Conditions
Heart Failure With Reduced Ejection Fraction
Interventions
ICD implantation
Procedure
Lead sponsor
University of Rochester
Other
Eligibility
18 Years and older
Enrollment
3,290 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
13
States / cities
Portland, Maine • Baltimore, Maryland • Boston, Massachusetts + 10 more
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced Sep 16, 2026, 3:54 AM EDT
Completed Not applicable Interventional Results available

Flecainide for Catecholaminergic Polymorphic Ventricular Tachycardia

NCT01117454
View directory record Official record
Conditions
Catecholaminergic Polymorphic Ventricular Tachycardia
Interventions
Flecainide Acetate, Placebo, Beta blocker
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
5 Years to 99 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
10
States / cities
Los Angeles, California • Orange, California • New York, New York + 7 more
Source: ClinicalTrials.gov public record
Updated Jun 13, 2017 · Synced Sep 16, 2026, 3:54 AM EDT
Completed Not applicable Interventional Results available

Comparison of VF Induction Techniques During Medtronic ICD Implant (VF) (ICD)

NCT02027883
View directory record Official record
Conditions
Cardiomyopathy
Interventions
Nominal T shock setting, Educated T shock setting
Device
Lead sponsor
James Merrill
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
Kingsport, Tennessee
Source: ClinicalTrials.gov public record
Updated May 21, 2018 · Synced Sep 16, 2026, 3:54 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Phase 1 Trial to Determine Dosimetry, Biodistribution and Safety of LMI 1195-101 in Healthy Subjects and Patients With Heart Failure

NCT00891241
View directory record Official record
Conditions
Heart Failure
Interventions
LMI 1195-101
Drug
Lead sponsor
Lantheus Medical Imaging
Industry
Eligibility
18 Years to 70 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
2
States / cities
Hartford, Connecticut • New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Nov 15, 2020 · Synced Sep 16, 2026, 3:54 AM EDT
Completed No phase listed Observational

Patient Expectations After Implantable-cardioverter Defibrillator (ICD) Implantation

NCT00845390
View directory record Official record
Conditions
Defibrillators, Implantable
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
Not listed
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 20, 2022 · Synced Sep 16, 2026, 3:54 AM EDT