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ClinicalTrials.gov public records Last synced Oct 7, 2026, 7:49 PM EDT

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Showing 73–96 of 212 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Implantable cardioverter-defibrillators Clear all
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 12, 2012 · Synced Oct 7, 2026, 7:49 PM EDT
Terminated Not applicable Interventional Results available

Effect of Posture on Left Ventricular (LV) Transvenous Lead Capture Thresholds (EXPECT)

NCT01520714
View directory record Official record
Conditions
Congestive Heart Failure
Interventions
Medtronic 4195 active fixation LV lead and Medtronic passive fixation LV lead
Device
Lead sponsor
Baylor Research Institute
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Plano, Texas
Source: ClinicalTrials.gov public record
Updated May 26, 2014 · Synced Oct 7, 2026, 7:49 PM EDT
Completed Phase 1 Interventional

Cardiac Autonomic Regulation Enhancement Through Exercise Trial

NCT00845091
View directory record Official record
Conditions
Cardiovascular Disease, Arrhythmias
Interventions
Exercise, Heart Healthy Education
Behavioral
Lead sponsor
The Miriam Hospital
Other
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Jan 8, 2014 · Synced Oct 7, 2026, 7:49 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 7, 2026, 7:49 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 7, 2026, 7:49 PM EDT
Completed No phase listed Observational

Brain Perfusion and Hemodynamic Stability in Patients Undergoing Radiofrequency Ablation of Ventricular Tachycardia

NCT01695551
View directory record Official record
Conditions
Ventricular Tachycardia
Interventions
Data Collection Forms
Other
Lead sponsor
Dhanunjaya Lakkireddy, MD, FACC
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jan 9, 2017 · Synced Oct 7, 2026, 7:49 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 7, 2026, 7:49 PM EDT
Completed Not applicable Interventional Results available

Pan-Asia United States PrEvention of Sudden Cardiac Death Catheter Ablation Trial

NCT02848781
View directory record Official record
Conditions
Ventricular Tachycardia (VT)
Interventions
Implantable Cardioverter Defibrillator (ICD), Catheter Ablation
Device · Procedure
Lead sponsor
University of Arizona
Other
Eligibility
18 Years and older
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Dec 14, 2022 · Synced Oct 7, 2026, 7:49 PM EDT
Completed Phase 4 Interventional Results available

Truncal Ultrasound Guided Regional Anesthesia for Implantation and Revision of Automatic Implantable Cardioverter Defibrillators (AICDs) and Pacemakers in Pediatric Patients

NCT04184349
View directory record Official record
Conditions
Analgesia After Pacemaker, AICDS Implantation Pediatrics
Interventions
LA group, B Group
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
0 Years to 17 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 4, 2025 · Synced Oct 7, 2026, 7:49 PM EDT
Completed No phase listed Observational

ICD-ON Registry: Periop Management of Cardiac Devices

NCT02052453
View directory record Official record
Conditions
Oversensing Cardiac Pacemaker, ICD, Surgery
Interventions
Not listed
Lead sponsor
Edward Hospital
Other
Eligibility
18 Years and older
Enrollment
350 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
3
States / cities
Downers Grove, Illinois • Elmhurst, Illinois • Naperville, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 28, 2017 · Synced Oct 7, 2026, 7:49 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 7, 2026, 7:49 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 14, 2016 · Synced Oct 7, 2026, 7:49 PM 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 21, 2022 · Synced Oct 7, 2026, 7:49 PM EDT
Completed Not applicable Interventional Results available

ENABLE MRI (Magnetic Resonance Imaging)

NCT02652481
View directory record Official record
Conditions
Magnetic Resonance Imaging
Interventions
ImageReady MR Conditional Defibrillation System
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
34
States / cities
Huntsville, Alabama • Jonesboro, Arkansas • Pasadena, California + 31 more
Source: ClinicalTrials.gov public record
Updated Jan 25, 2021 · Synced Oct 7, 2026, 7:49 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 7, 2026, 7:49 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 7, 2026, 7:49 PM EDT
Enrolling by invitation Not applicable Interventional

Magnetic Resonance Imaging (MRI) in Patients With Pacemakers and Implanted Cardioverter Defibrillators

NCT02888353
View directory record Official record
Conditions
Device:MRI
Interventions
Device: MRI
Device
Lead sponsor
Johns Hopkins University
Other
Eligibility
9 Years to 100 Years
Enrollment
4,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 15, 2025 · Synced Oct 7, 2026, 7:49 PM 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 22, 2018 · Synced Oct 7, 2026, 7:49 PM EDT
Withdrawn Not applicable Interventional

RESPECT Heart Failure- RESpiratory Pattern Evaluation in Clinical Trials for HF

NCT04757246
View directory record Official record
Conditions
Heart Failure
Interventions
MouthLab Device
Other
Lead sponsor
WakeMed Health and Hospitals
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 24, 2022 · Synced Oct 7, 2026, 7:49 PM EDT
Not listed Not applicable Interventional

Natural History of COVID-19-Related Atrial Fibrillation

NCT04830774
View directory record Official record
Conditions
COVID-19, Atrial Fibrillation New Onset
Interventions
ILR, PMK, ICD
Device
Lead sponsor
Texas Cardiac Arrhythmia Research Foundation
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
2
States / cities
Kansas City, Kansas • Austin, Texas
Source: ClinicalTrials.gov public record
Updated Nov 23, 2021 · Synced Oct 7, 2026, 7:49 PM EDT
Not listed No phase listed Observational

The Registry Evaluating Functional Outcomes of Resynchronization Management

NCT00959179
View directory record Official record
Conditions
Congestive Heart Failure
Interventions
Not listed
Lead sponsor
Saint Luke's Health System
Other
Eligibility
18 Years to 90 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
2
States / cities
Elgin, Illinois • Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Aug 14, 2009 · Synced Oct 7, 2026, 7:49 PM EDT
Completed Not applicable Interventional

D2-EPG Study: Evaluation of New Sensing Circuitry and Capture Management

NCT00328705
View directory record Official record
Conditions
Heart Diseases
Interventions
Implantable Cardioverter Defibrillator
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
5
States / cities
Tampa, Florida • Coon Rapids, Minnesota • Rochester, Minnesota + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 13, 2008 · Synced Oct 7, 2026, 7:49 PM EDT
Recruiting No phase listed Observational

ASSURE WCD Clinical Evaluation - Post Approval Study (ACE-PAS)

NCT05135403
View directory record Official record
Conditions
Sudden Cardiac Arrest
Interventions
Defibrillation
Device
Lead sponsor
Kestra Medical Technologies, Inc.
Industry
Eligibility
18 Years and older
Enrollment
5,179 participants
Timeline
2021 – 2025
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 2, 2025 · Synced Oct 7, 2026, 7:49 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 7, 2026, 7:49 PM EDT