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ClinicalTrials.gov public records Last synced Oct 5, 2026, 10:00 PM EDT

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Showing 49–72 of 189 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Implantable Cardioverter Defibrillator Implanted Clear all
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 8, 2017 · Synced Oct 5, 2026, 10:00 PM EDT
Completed No phase listed Observational

Parallel Mapping for Ventricular Tachycardia

NCT04477499
View directory record Official record
Conditions
Ventricular Tachycardia (V-Tach), Implantable Cardioverter Defibrillator (ICD), Arrythmia
Interventions
Not listed
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 10, 2023 · Synced Oct 5, 2026, 10:00 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 5, 2026, 10:00 PM EDT
Terminated Not applicable Interventional Results available

Efficacy and Safety of Implantable Cardioverter-Defibrillator (ICD) Implantation in the Elderly

NCT02121158
View directory record Official record
Conditions
Cardiomyopathy, Coronary Artery Disease, Congestive Heart Failure, Myocardial Infarction
Interventions
Implantable Cardioverter Defibrillator, Optimal Medical Therapy
Device · Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
70 Years and older
Enrollment
167 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
5
States / cities
Washington D.C., District of Columbia • Gainesville, Florida • Minneapolis, Minnesota + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 31, 2024 · Synced Oct 5, 2026, 10:00 PM EDT
Completed Phase 1 Interventional

Nurses Helping Sudden Cardiac Arrest Survivors Recover After Getting An Implantable Cardioverter Defibrillator (ICD)

NCT00226681
View directory record Official record
Conditions
Sudden Cardiac Arrest
Interventions
Nursing Telephone Support Protocol, Usual Care
Behavioral
Lead sponsor
National Institute of Nursing Research (NINR)
NIH
Eligibility
12 Years to 90 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2004
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 10, 2008 · Synced Oct 5, 2026, 10:00 PM EDT
Completed Phase 2 Interventional

Exercise After an ICD

NCT00522340
View directory record Official record
Conditions
Defibrillators, Implantable, Heart Failure, Congestive
Interventions
Aerobic Exercise Program
Behavioral
Lead sponsor
University of Washington
Other
Eligibility
21 Years and older
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2014
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Nov 10, 2014 · Synced Oct 5, 2026, 10:00 PM EDT
Completed Not applicable Interventional Results available

A Clinical Evaluation of the Durata or Optisure High Voltage Leads and Ellipse VR ICD Undergoing MRI, an IDE Study

NCT02787291
View directory record Official record
Conditions
Implantable Defibrillator User
Interventions
Ellipse VR ICD and Durata/Optisure lead
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
227 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
26
States / cities
Phoenix, Arizona • Bakersfield, California • La Jolla, California + 22 more
Source: ClinicalTrials.gov public record
Updated Sep 3, 2020 · Synced Oct 5, 2026, 10:00 PM EDT
Completed No phase listed Observational Results available

Educational Videos to Improve Patient Decision Making and Race Disparities in Implantable Cardioverter Defibrillator Use

NCT00918125
View directory record Official record
Conditions
Sudden Cardiac Arrest
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
19 Years and older
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
2
States / cities
Burlington, North Carolina • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 19, 2015 · Synced Oct 5, 2026, 10:00 PM EDT
Completed No phase listed Observational

The Implantable Cardioverter-defibrillators (ICD)/Device Expectations, Adaptations, and Successes Study

NCT01040988
View directory record Official record
Conditions
Depression, Anxiety, Post-traumatic Stress Disorder
Interventions
Not listed
Lead sponsor
Boston Children's Hospital
Other
Eligibility
6 Years to 20 Years
Enrollment
166 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 13, 2017 · Synced Oct 5, 2026, 10:00 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 5, 2026, 10:00 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 26, 2016 · Synced Oct 5, 2026, 10:00 PM EDT
Completed Not applicable Interventional Results available

Reducing Decompensation Events Utilizing Intracardiac Pressures in Patients With Chronic Heart Failure (HF) (REDUCEhf)

NCT00354159
View directory record Official record
Conditions
Heart Failure
Interventions
Implantable Hemodynamic Monitor (Chronicle® IHM), and IHM in combination with single chamber ICD (Chronicle ICD)
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
442 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
52
States / cities
Birmingham, Alabama • La Jolla, California • Loma Linda, California + 43 more
Source: ClinicalTrials.gov public record
Updated Aug 9, 2012 · Synced Oct 5, 2026, 10:00 PM EDT
Completed Phase 2Phase 3 Interventional

A Mindfulness-based Intervention for Treatment of Anxiety in ICD (Implantable Cardioverter Defibrillator) Patients

NCT01035294
View directory record Official record
Conditions
Anxiety Disorder in Conditions Classified Elsewhere
Interventions
mindfulness based intervention (MBI), usual care
Behavioral
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
21 Years and older
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 30, 2012 · Synced Oct 5, 2026, 10:00 PM EDT
Completed Phase 4 Interventional Results available

OptiVol® Care Pathway

NCT00847288
View directory record Official record
Conditions
Heart Failure
Interventions
Monthly Review Arm, Quarterly Review Arm
Other
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
1,682 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
108
States / cities
Birmingham, Alabama • Mobile, Alabama • Anchorage, Alaska + 105 more
Source: ClinicalTrials.gov public record
Updated May 3, 2013 · Synced Oct 5, 2026, 10:00 PM EDT
Not listed Not applicable Interventional

A PRospective, rAndomizEd Comparison of subcuTaneOous and tRansvenous ImplANtable Cardioverter Defibrillator Therapy

NCT01296022
View directory record Official record
Conditions
Ventricular Arrhythmias
Interventions
Implantation of subcutaneous ICD, Implantation of transvenous ICD
Device
Lead sponsor
Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
Other
Eligibility
18 Years and older
Enrollment
850 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2023
U.S. locations
10
States / cities
New Haven, Connecticut • Atlanta, Georgia • Chicago, Illinois + 4 more
Source: ClinicalTrials.gov public record
Updated May 9, 2023 · Synced Oct 5, 2026, 10:00 PM EDT
Completed No phase listed Observational

Global Electrical Heterogeneity and Clinical Outcomes

NCT03210883
View directory record Official record
Conditions
Heart Failure, Implantable Defibrillator User, Ventricular Arrythmia
Interventions
Not listed
Lead sponsor
Larisa Tereshchenko
Other
Eligibility
18 Years to 89 Years
Enrollment
3,471 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
6
States / cities
Los Angeles, California • Stanford, California • Aurora, Colorado + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 8, 2021 · Synced Oct 5, 2026, 10:00 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 5, 2026, 10:00 PM EDT
Not listed Phase 4 Interventional

Study of Defibrillation Testing In Patients Undergoing Initial ICD Implantation

NCT01905007
View directory record Official record
Conditions
Ventricular Arrhythmias
Interventions
Defibrillation testing
Device
Lead sponsor
The Cooper Health System
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
2
States / cities
Camden, New Jersey • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jul 22, 2013 · Synced Oct 5, 2026, 10:00 PM EDT
Recruiting No phase listed Observational

Prospective Observational Study of the ICD in Sudden Cardiac Death Prevention

NCT00733590
View directory record Official record
Conditions
Heart Failure, Congestive, Death, Sudden, Cardiac, Arrhythmia, Cardiomyopathies
Interventions
Not listed
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 85 Years
Enrollment
1,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2029
U.S. locations
4
States / cities
Washington D.C., District of Columbia • Baltimore, Maryland • Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jan 20, 2026 · Synced Oct 5, 2026, 10:00 PM EDT
Completed Not applicable Interventional

Barriers to Use of Remote Monitoring in Patients With Implantable Cardioverter Defibrillators

NCT02361333
View directory record Official record
Conditions
Cardiac Patients, Implantable Cardioverter Defibrillator
Interventions
Teaching Intervention
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 17, 2018 · Synced Oct 5, 2026, 10:00 PM EDT
Terminated Phase 3 Interventional Results available

Mental Stress Reduction in Defibrillator Patients

NCT00624520
View directory record Official record
Conditions
Cardiomyopathy, Dilated, Arrhythmia, Anger, Stress
Interventions
Cognitive Behavioral Stress Management (CBSM), Patient Education
Behavioral · Other
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
21 Years to 85 Years
Enrollment
129 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
2
States / cities
Madison, Wisconsin • Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 22, 2014 · Synced Oct 5, 2026, 10:00 PM EDT
Completed No phase listed Observational

Study Evaluating the Use of MRI on CMS Patients

NCT02513056
View directory record Official record
Conditions
Pacemaker, Implantable Cardioverter Defibrillators
Interventions
MRI
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
872 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 14, 2024 · Synced Oct 5, 2026, 10:00 PM EDT
Completed No phase listed Observational

Enhancing Knowledge Implantable Cardioverter-Defibrillators (ICDs)

NCT00822965
View directory record Official record
Conditions
Pacemaker, Implantable Cardioverter-Defibrillators
Interventions
Questionnaires, Phone Interviews, Educational Packet
Other · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
104 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 7, 2016 · Synced Oct 5, 2026, 10:00 PM EDT
Terminated No phase listed Observational

Study of Paced QRS Duration as a Marker of Sudden Cardiac Death

NCT01948206
View directory record Official record
Conditions
Sudden Cardiac Death
Interventions
Not listed
Lead sponsor
Pocono Medical Center
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
East Stroudsburg, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 13, 2016 · Synced Oct 5, 2026, 10:00 PM EDT