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ClinicalTrials.gov public records Last synced Oct 21, 2026, 5:54 AM EDT

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Showing 169–192 of 253 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: ICD Clear all
Completed No phase listed Observational

Implantable Cardiac Defibrillators for the Prevention of Sudden Death in Patients With Cardiac Sarcoidosis

NCT01013311
View directory record Official record
Conditions
Sarcoidosis of the Heart, Cardiomyopathy
Interventions
Not listed
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jun 5, 2023 · Synced Oct 21, 2026, 5:54 AM EDT
Completed Not applicable Interventional

Establishing a Standard for Peri-operative Implantable Cardioverter Defibrillator (ICD) Patient Education

NCT00845234
View directory record Official record
Conditions
Arrhythmia
Interventions
Intervention
Behavioral
Lead sponsor
East Carolina University
Other
Eligibility
18 Years and older
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
3
States / cities
Aurora, Colorado • Lone Tree, Colorado • Greenville, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 26, 2013 · Synced Oct 21, 2026, 5:54 AM EDT
Completed Not applicable Interventional

Postcards to Improve Remote Monitoring Connectivity Among Veterans With a Disconnected Monitor

NCT07464834
View directory record Official record
Conditions
ICD, Pacemaker, Implanted Loop Recorder, Remote Monitoring, Adherence, Patient
Interventions
Tailored Postcard
Other
Lead sponsor
San Francisco VA Health Care System
Federal
Eligibility
Not listed
Enrollment
2,726 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 11, 2026 · Synced Oct 21, 2026, 5:54 AM EDT
Completed No phase listed Observational

Analysis of Both Sex and Device Specific Factors on Outcomes in Patients with Non-Ischemic Cardiomyopathy

NCT03884608
View directory record Official record
Conditions
Cardiomyopathies, Gender, Implantable Defibrillator User
Interventions
Not listed
Lead sponsor
Biotronik, Inc.
Industry
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
49
States / cities
Birmingham, Alabama • Fairhope, Alabama • Rancho Mirage, California + 41 more
Source: ClinicalTrials.gov public record
Updated Nov 22, 2024 · Synced Oct 21, 2026, 5:54 AM EDT
Completed Not applicable Interventional Results available

Safety of Body Composition Analysis in Heart Failure Patients With Implantable Cardioverter Defibrillators (ICDs)

NCT01568606
View directory record Official record
Conditions
Heart Failure, Obesity
Interventions
Body Composition Analysis InBody Scale
Device
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 10, 2020 · Synced Oct 21, 2026, 5:54 AM EDT
Completed Phase 2 Interventional Results available

Stem Cell Transplantation for Hurler

NCT00176917
View directory record Official record
Conditions
Mucopolysaccharidosis I, Mucopolysaccharidosis VI, Mannosidosis, Mucolipidosis Type II (I-cell Disease)
Interventions
Stem Cell Transplant, Busulfan, Cyclophosphamide, ATG
Procedure · Drug
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
Not listed
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2010
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 28, 2017 · Synced Oct 21, 2026, 5:54 AM EDT
Completed No phase listed Observational

St. Jude Medical Product Longevity and Performance (SCORE) Registry

NCT01754064
View directory record Official record
Conditions
Bradycardia, Tachycardia, Heart Disease
Interventions
Cardiac Rhythm Management device
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
10,957 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2020
U.S. locations
80
States / cities
Huntsville, Alabama • Mobile, Alabama • Anchorage, Alaska + 72 more
Source: ClinicalTrials.gov public record
Updated May 11, 2021 · Synced Oct 21, 2026, 5:54 AM EDT
Completed No phase listed Observational Results available

Long-term Evaluation of the Linox Family ICD Leads Registry (GALAXY)

NCT00836589
View directory record Official record
Conditions
Patients Indicated for an ICD
Interventions
ICD Therapy - ICD Lead Registry
Device
Lead sponsor
Biotronik, Inc.
Industry
Eligibility
18 Years and older
Enrollment
1,997 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2016
U.S. locations
85
States / cities
Albertville, Alabama • Birmingham, Alabama • Gadsden, Alabama + 82 more
Source: ClinicalTrials.gov public record
Updated Feb 15, 2019 · Synced Oct 21, 2026, 5:54 AM 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 21, 2026, 5:54 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Morphological Predictors of Sudden Cardiac Death in Patients With Known Cardiomyopathies

NCT00312624
View directory record Official record
Conditions
Cardiomyopathy
Interventions
contrast-enhanced cardiac MRI
Procedure
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 10, 2011 · Synced Oct 21, 2026, 5:54 AM EDT
Withdrawn Phase 2 Interventional

Patients With Patent Foramen Ovale and Endocardial Device Leads on Apixaban for Prevention of Paradoxical Emboli

NCT02378623
View directory record Official record
Conditions
Patent Foramen Ovale, Cardiac Implantable Electronic Device
Interventions
Apixaban, Placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 85 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 16, 2018 · Synced Oct 21, 2026, 5:54 AM EDT
Completed No phase listed Observational Results available

ProMRI Study of the Iforia ICD System (Phase C)

NCT02096692
View directory record Official record
Conditions
Implantable Cardioverter-Defibrillator With Magnetic Resonance Imaging
Interventions
Patients with a ProMRI ICD System, Magnetic Resonance Imaging (MRI) scan
Device · Other
Lead sponsor
Biotronik, Inc.
Industry
Eligibility
18 Years and older
Enrollment
154 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
39
States / cities
Birmingham, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 35 more
Source: ClinicalTrials.gov public record
Updated Feb 29, 2016 · Synced Oct 21, 2026, 5:54 AM EDT
Completed No phase listed Observational

Ventricular Tachyarrhythmia (VT) Storm, Gene Expression in Implantable Cardioverter Defibrillator (ICD) Patients With Electrical Storm

NCT00284453
View directory record Official record
Conditions
Arrhythmias
Interventions
Peripheral blood sampling
Procedure
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2018
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 12, 2019 · Synced Oct 21, 2026, 5:54 AM EDT
Completed Not applicable Interventional

An Intervention to Improve Implantable Cardioverter-Defibrillator Deactivation Conversations

NCT01459744
View directory record Official record
Conditions
Communication, Heart Failure
Interventions
Communication training for cardiologists., Control arm
Behavioral · Other
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
562 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
6
States / cities
Denver, Colorado • New Haven, Connecticut • Rochester, Minnesota + 3 more
Source: ClinicalTrials.gov public record
Updated Oct 6, 2016 · Synced Oct 21, 2026, 5:54 AM EDT
Completed No phase listed Observational

Programming Implantable Cardioverter Defibrillators in Patients With Primary Prevention Indication

NCT00743522
View directory record Official record
Conditions
Shock
Interventions
ICD/ CRT-D
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
1,670 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 4, 2019 · Synced Oct 21, 2026, 5:54 AM EDT
Not listed Not applicable Interventional

Study to Evaluate Tetanizing Burst Therapy in Patients Undergoing ICD Replacement

NCT03628911
View directory record Official record
Conditions
Cardiac Electrophysiology
Interventions
Tetanizing Burst Therapy
Device
Lead sponsor
EP Sciences
Industry
Eligibility
18 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 17, 2019 · Synced Oct 21, 2026, 5:54 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 14, 2015 · Synced Oct 21, 2026, 5:54 AM EDT
Terminated Not applicable Interventional Results available

Bispectral Index Monitoring During Testing in the Electrophysiology Lab

NCT00749671
View directory record Official record
Conditions
Tachycardia, Ventricular
Interventions
Bispectral index monitoring, Ramsey Sedation Scale
Device · Other
Lead sponsor
Baystate Medical Center
Other
Eligibility
21 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2013
U.S. locations
1
States / cities
Springfield, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 19, 2016 · Synced Oct 21, 2026, 5:54 AM EDT
Completed Not applicable Interventional Results available

REsynchronization reVErses Remodeling in Systolic Left vEntricular Dysfunction (REVERSE)

NCT00271154
View directory record Official record
Conditions
Heart Failure
Interventions
Cardiac Resynchronization Therapy (CRT) Device or Implantable Cardioverter Defibrillator (ICD) with CRT
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
684 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2011
U.S. locations
34
States / cities
Huntsville, Alabama • Anchorage, Alaska • Redwood City, California + 31 more
Source: ClinicalTrials.gov public record
Updated Jan 30, 2012 · Synced Oct 21, 2026, 5:54 AM EDT
Active, not recruiting No phase listed Observational

Enlighten Study: The EV-ICD Post Approval Registry

NCT06048731
View directory record Official record
Conditions
Ventricular Arrhythmia, Tachycardia
Interventions
Defibrillation using EV-ICD
Device
Lead sponsor
Medtronic
Industry
Eligibility
Not listed
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2037
U.S. locations
57
States / cities
Huntington Park, California • Redwood City, California • San Diego, California + 45 more
Source: ClinicalTrials.gov public record
Updated Oct 8, 2026 · Synced Oct 21, 2026, 5:54 AM EDT
Completed Not applicable Interventional

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

NCT00305214
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
405 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 13, 2008 · Synced Oct 21, 2026, 5:54 AM EDT
Completed No phase listed Observational

LONGEVITY Study. Evaluation of the Device and Battery Longevity of Boston Scientific Market-released ICD and CRT-D Devices

NCT02091011
View directory record Official record
Conditions
Implantable Cardioverter Defibrillators, CRT-D Cardiac Resynchronization Therapy Defibrillator
Interventions
Not listed
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
Not listed
Enrollment
1,600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2021
U.S. locations
51
States / cities
Birmingham, Alabama • Glendale, Arizona • Tucson, Arizona + 44 more
Source: ClinicalTrials.gov public record
Updated Aug 2, 2022 · Synced Oct 21, 2026, 5:54 AM EDT
Completed Phase 2 Interventional

Sleep and Ventricular Arrhythmias Study

NCT02232204
View directory record Official record
Conditions
Cardiac Arrhythmia, Implantable Defibrillator User, Insomnia
Interventions
CBT for Insomnia in ICD Patients (CBT-I-ICD)
Behavioral
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Sep 5, 2014 · Synced Oct 21, 2026, 5:54 AM EDT
Completed Phase 4 Interventional Results available

TRUST: Lumos-T Safely RedUceS RouTine Office Device Follow-up

NCT00336284
View directory record Official record
Conditions
Patient Indicated for an ICD
Interventions
Home Monitoring, In-Office Conventional Follow-up
Other
Lead sponsor
Biotronik, Inc.
Industry
Eligibility
18 Years and older
Enrollment
1,450 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
108
States / cities
Birmingham, Alabama • Mesa, Arizona • Phoenix, Arizona + 87 more
Source: ClinicalTrials.gov public record
Updated Aug 3, 2010 · Synced Oct 21, 2026, 5:54 AM EDT