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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: ICD Clear all
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 6, 2026, 9:15 PM EDT
Terminated No phase listed Observational Results available

ST Segment Detection Study

NCT00930969
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
ICD
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
175 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
17
States / cities
Anchorage, Alaska • Brandon, Florida • Orlando, Florida + 14 more
Source: ClinicalTrials.gov public record
Updated Feb 17, 2019 · Synced Sep 6, 2026, 9:15 PM EDT
Completed Not applicable Interventional

MASTER I - Microvolt T Wave Alternans Testing for Risk Stratification of Post MI Patients

NCT00305240
View directory record Official record
Conditions
Myocardial Infarction, Arrhythmia, Ventricular, Ischemic Cardiomyopathy
Interventions
T Wave Alternans Test
Procedure
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
Not listed
Enrollment
656 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2007
U.S. locations
47
States / cities
Mobile, Alabama • Phoenix, Arizona • Walnut Creek, California + 44 more
Source: ClinicalTrials.gov public record
Updated Feb 12, 2008 · Synced Sep 6, 2026, 9:15 PM 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 20, 2023 · Synced Sep 6, 2026, 9:15 PM EDT
Completed Phase 1 Interventional

Effects of Triiodothyronine (T3) in Ischemic Heart Failure

NCT05384847
View directory record Official record
Conditions
Heart Failure
Interventions
Thyroid hormone T3, Control Group
Drug · Other
Lead sponsor
Emory University
Other
Eligibility
18 Years to 80 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
2
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 3, 2026 · Synced Sep 6, 2026, 9:15 PM EDT
Enrolling by invitation No phase listed Observational

IVTCC 2.0: A Prospective Multicenter Ventricular Tachycardia Catheter Ablation Registry

NCT04520347
View directory record Official record
Conditions
Ventricular Arrhythmia, Ventricular Tachycardia, Premature Ventricular Contraction (PVC), Cardiomyopathy
Interventions
Not listed
Lead sponsor
University of California, Los Angeles
Other
Eligibility
Not listed
Enrollment
10,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2027
U.S. locations
34
States / cities
Phoenix, Arizona • Los Angeles, California • Sacramento, California + 25 more
Source: ClinicalTrials.gov public record
Updated Dec 14, 2025 · Synced Sep 6, 2026, 9:15 PM EDT
Completed Phase 2 Interventional

Patient and Partner Intervention After an Implantable Cardioverter Defibrillator (ICD)

NCT01252615
View directory record Official record
Conditions
Implantable Cardioverter Defibrillator (ICD)
Interventions
patient only, patient and partner intervention
Behavioral
Lead sponsor
University of Washington
Other
Eligibility
21 Years and older
Enrollment
301 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 25, 2016 · Synced Sep 6, 2026, 9:15 PM EDT
Not listed Not applicable Interventional

Open Label, Controlled, Post Marketing, Registry Study of Ribociclib (Ribo) Treatment Adherence and Patient Reported Outcomes in Participants Using ReX Technology Platform

NCT06344416
View directory record Official record
Conditions
Any Solid Oral Medication
Interventions
Use of ReX to dispense and monitor solid oral medication therapy.
Device
Lead sponsor
Dosentrx Ltd.
Industry
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
4
States / cities
Minneapolis, Minnesota • Austin, Texas • Richmond, Virginia + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 11, 2025 · Synced Sep 6, 2026, 9:15 PM EDT
Completed No phase listed Observational

Genetic Substudy of the Alternans Before Cardioverter Defibrillator (ABCD) Trial

NCT00583297
View directory record Official record
Conditions
Ventricular Tachycardia, Cardiovascular Diseases, Arrythmia, CVD
Interventions
Not listed
Lead sponsor
CardioDx
Industry
Eligibility
18 Years and older
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 21, 2018 · Synced Sep 6, 2026, 9:15 PM EDT
Completed No phase listed Observational

Dynamic Thoracic Impedance as a Marker for Heart Failure Decompensation

NCT02134379
View directory record Official record
Conditions
Heart Failure; With Decompensation
Interventions
Medtronic ICDs, CRT-Ds, and CRT-Ps
Device
Lead sponsor
Charles Porter, MD
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Apr 13, 2016 · Synced Sep 6, 2026, 9:15 PM EDT
Terminated Phase 4 Interventional Results available

Early Ablation Therapy for the Treatment of Ischemic Ventricular Tachycardia in Patients With Implantable Cardioverter Defibrillators

NCT01557842
View directory record Official record
Conditions
Ventricular Tachycardia, Ischemic
Interventions
Drug Treatment, Catheter Ablation
Drug · Device
Lead sponsor
Biosense Webster, Inc.
Industry
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
23
States / cities
Los Angeles, California • San Francisco, California • Aurora, Colorado + 14 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2017 · Synced Sep 6, 2026, 9:15 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Vaccine Therapy With or Without Polysaccharide-K in Patients With Stage IV HER2 Positive Breast Cancer Receiving HER2-Targeted Monoclonal Antibody Therapy

NCT01922921
View directory record Official record
Conditions
HER2/Neu Positive, Recurrent Breast Carcinoma, Stage IV Breast Cancer
Interventions
HER-2/neu Intracellular Domain Protein, Laboratory Biomarker Analysis, Pertuzumab, Placebo, Polysaccharide-K, Trastuzumab
Biological · Other
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2021
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Apr 17, 2023 · Synced Sep 6, 2026, 9:15 PM EDT
Completed No phase listed Observational Results available

PARTNERS HF: Program to Access and Review Trending Information and Evaluate Correlation to Symptoms in Patients With Heart Failure

NCT00279955
View directory record Official record
Conditions
Heart Failure, Congestive
Interventions
Cardiac Resynchronization Therapy Device
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
1,024 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
93
States / cities
Huntsville, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 90 more
Source: ClinicalTrials.gov public record
Updated Jun 14, 2012 · Synced Sep 6, 2026, 9:15 PM 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 6, 2026, 9:15 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 7, 2006 · Synced Sep 6, 2026, 9:15 PM EDT
Completed Not applicable Interventional Results available

Detect Fluid Early From Intra-thoracic Impedance Monitoring

NCT00916929
View directory record Official record
Conditions
Heart Failure
Interventions
Impedance Monitoring Feature
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
162 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
34
States / cities
Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 29 more
Source: ClinicalTrials.gov public record
Updated Feb 18, 2019 · Synced Sep 6, 2026, 9:15 PM EDT
Terminated Not applicable Interventional

Automated MEdical Record Driven Implantable CArdioverter-defibrillator Heart Failure Trial (AMERICA-HF)

NCT01807130
View directory record Official record
Conditions
Heart Failure
Interventions
Automated HF/EP Referral, Placebo (Registry Arm)
Other
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 9, 2014 · Synced Sep 6, 2026, 9:15 PM EDT
Withdrawn No phase listed Observational

Prevalence of Atrial Delay That Would Preclude Optimization of Atrioventricular (AV) Delay in Patients With Biventricular (BiV) Device

NCT00906100
View directory record Official record
Conditions
Heart Failure
Interventions
Not listed
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Feb 6, 2019 · Synced Sep 6, 2026, 9:15 PM EDT
Completed Phase 4 Interventional Results available

RIGHT: Rhythm ID Going Head-to-Head Trial

NCT00148954
View directory record Official record
Conditions
Tachycardia
Interventions
VITALITY 2 Implantable Cardioverter Defibrillator, Medtronic Implantable Cardioverter Defibrillator
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
1,962 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jan 11, 2012 · Synced Sep 6, 2026, 9:15 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

MANAGE-VT Registry - MANAGEment of Ventricular Tachycardia Outcomes Registry

NCT06455488
View directory record Official record
Conditions
Ventricular Tachycardia
Interventions
Ventricular Tachycardia Ablation, ICD Implant, Antiarrhythmic drug, EKG, Cardioversion, Echocardiogram
Procedure · Device · Drug + 1 more
Lead sponsor
CorVita Science Foundation
Other
Eligibility
18 Years and older
Enrollment
130 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2030
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 11, 2024 · Synced Sep 6, 2026, 9:15 PM EDT
Active, not recruiting No phase listed Observational

Personalized Therapy Study - HFRS (TriageHF) Post Approval Study

NCT04489225
View directory record Official record
Conditions
Heart Failure
Interventions
Observational
Other
Lead sponsor
Medtronic
Industry
Eligibility
Not listed
Enrollment
2,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2028
U.S. locations
51
States / cities
Chandler, Arizona • Little Rock, Arkansas • Chula Vista, California + 44 more
Source: ClinicalTrials.gov public record
Updated Oct 19, 2025 · Synced Sep 6, 2026, 9:15 PM EDT
Completed No phase listed Observational

Study of the Wearable Defibrillator in Heart-Failure Patients

NCT01326624
View directory record Official record
Conditions
Heart Failure, Ventricular Dysfunction, Sudden Death, Sudden Cardiac Arrest, Ventricular Tachycardia, Ventricular Fibrillation
Interventions
wearable defibrillator (LifeVest)
Device
Lead sponsor
Zoll Medical Corporation
Industry
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2017
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Dec 5, 2017 · Synced Sep 6, 2026, 9:15 PM EDT
Completed No phase listed Observational

Comparison of a MAGNET Protocol Versus "off-on" Protocol for Patients With Implantable Cardioverter Defibrillators

NCT01599065
View directory record Official record
Conditions
Sudden Cardiac Death, Arrhythmia, Heart Failure
Interventions
Magnet or Off-On
Other
Lead sponsor
Midwest Heart Foundation
Other
Eligibility
19 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
3
States / cities
Downers Grove, Illinois • Elmhurst, Illinois • Naperville, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 20, 2013 · Synced Sep 6, 2026, 9:15 PM EDT
Completed No phase listed Observational Results available

Tachy Prediction Download Study

NCT03402126
View directory record Official record
Conditions
Ventricular Tachycardia
Interventions
TPD RAMWare
Other
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
138 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
15
States / cities
Los Angeles, California • Des Moines, Iowa • Royal Oak, Michigan + 12 more
Source: ClinicalTrials.gov public record
Updated Nov 15, 2021 · Synced Sep 6, 2026, 9:15 PM EDT