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ClinicalTrials.gov public records Last synced Nov 4, 2026, 6:10 AM EST

All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 168 matching trials from the live ClinicalTrials.gov search.

Filters: Condition: ICDs Clear all

Conditions: Implantable Cardioverter-Defibrillators
Interventions: Not listed
Lead sponsor: Minneapolis Heart Institute Foundation; Other
Eligibility: 18 Years and older
Enrollment: 100 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2008 – 2011
U.S. locations: 1
States / cities: Minneapolis, Minnesota

Conditions: MRI Scans, Magnetic Resonance Imaging, Pacemaker, Implantable Cardioverter Defibrillator
Interventions: MRI Scan; Other
Lead sponsor: Lancaster General Hospital; Other
Eligibility: 18 Years and older
Enrollment: 262 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2014 – 2018
U.S. locations: 1
States / cities: Lancaster, Pennsylvania

Conditions: Heart Failure, Systolic
Interventions: Exercise-similar cardiac pacing, Sham cardiac pacing; Device
Lead sponsor: Denice Hodgson-Zingman, MD; Other
Eligibility: 18 Years to 120 Years
Enrollment: 52 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2024 – 2028
U.S. locations: 1
States / cities: Iowa City, Iowa

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

Conditions: Tachyarrhythmias, Sudden Cardiac Death, Heart Failure
Interventions: SJ4 connector and RV high voltage SJ4 lead; Device
Lead sponsor: Abbott Medical Devices; Industry
Eligibility: 18 Years and older
Enrollment: 1,701 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2009 – 2015
U.S. locations: 1
States / cities: Cleveland, Ohio

Conditions: Pacemaker, Implantable Defibrillator
Interventions: Alert-based care, Guideline-based Care; Other
Lead sponsor: Beth Israel Deaconess Medical Center; Other
Eligibility: 18 Years and older
Enrollment: 3,000 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2026 – 2031
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: Arrhythmia Prophylaxis, Ventricular Arrhythmia
Interventions: Celivarone, Amiodarone, Matching placebo; Drug
Lead sponsor: Sanofi; Industry
Eligibility: 21 Years and older
Enrollment: 486 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2009 – 2011
U.S. locations: 37
States / cities: Huntsville, Alabama • Mobile, Alabama • Mesa, Arizona + 33 more

Conditions: Arrythmias
Interventions: Not listed
Lead sponsor: National Institute of Environmental Health Sciences (NIEHS); NIH
Eligibility: 0 Years to 90 Years
Enrollment: 500 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 1998 – 2004
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: Magnetic Resonance Imaging (MRI)
Interventions: Blood sample collection; Diagnostic Test
Lead sponsor: Mayo Clinic; Other
Eligibility: 18 Years and older
Enrollment: 105 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2019 – 2021
U.S. locations: 1
States / cities: Rochester, Minnesota

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

Conditions: Pacemaker DDD, Implantable Defibrillator User
Interventions: Alert-based care, Guideline-based care; Device
Lead sponsor: Beth Israel Deaconess Medical Center; Other
Eligibility: 18 Years and older
Enrollment: 120 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2025 – 2026
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: Arrhythmia, Quality of Life, Hypomagnesemia
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

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

Conditions: Ventricular Tachycardia (VT)
Interventions: Sphere-9 Catheter with the Affera Mapping and Ablation System; Device
Lead sponsor: Medtronic Cardiac Ablation Solutions; Industry
Eligibility: 18 Years to 85 Years
Enrollment: 60 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2025 – 2027
U.S. locations: 6
States / cities: Boston, Massachusetts • New York, New York • Cleveland, Ohio + 3 more

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

Conditions: Implantable Defibrillator User
Interventions: Not listed
Lead sponsor: Larisa Tereshchenko; Other
Eligibility: 18 Years and older
Enrollment: 106 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2017 – 2020
U.S. locations: 1
States / cities: Portland, Oregon

Conditions: Implantable Defibrillator User
Interventions: Implantable cardioverter-defibrillators; Device
Lead sponsor: Beth Israel Deaconess Medical Center; Other
Eligibility: 65 Years and older
Enrollment: 500 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2021 – 2026
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: Tachycardia, Ventricular, Implantable Cardioverter Defibrillator (ICD), Fibrillation, Ventricular, Syncope
Interventions: Implanted Device; Device
Lead sponsor: Medtronic Cardiac Rhythm and Heart Failure; Industry
Eligibility: 18 Years and older
Enrollment: 700 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2003 – 2006
U.S. locations: 31
States / cities: Birmingham, Alabama • Mesa, Arizona • Phoenix, Arizona + 28 more

Conditions: Heart Arrhythmias
Interventions: Not listed
Lead sponsor: Yale University; Other
Eligibility: 10 Years to 60 Years
Enrollment: 400 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2006 – 2015
U.S. locations: 31
States / cities: Phoenix, Arizona • Tucson, Arizona • Little Rock, Arkansas + 23 more

Conditions: Ventricular Tachycardia
Interventions: Sphere-9 Catheter with the Affera Mapping and Ablation System; Device
Lead sponsor: Medtronic Cardiac Ablation Solutions; Industry
Eligibility: 18 Years to 85 Years
Enrollment: 260 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2026 – 2028
U.S. locations: 7
States / cities: Littleton, Colorado • Indianapolis, Indiana • Manhasset, New York + 4 more

Conditions: Congestive Heart Failure, Sudden Cardiac Death, Arrhythmia, Cardiomyopathies
Interventions: Not listed
Lead sponsor: Johns Hopkins University; Other
Eligibility: 18 Years and older
Enrollment: 630 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2005 – 2011
U.S. locations: 2
States / cities: Baltimore, Maryland • St Louis, Missouri

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

Conditions: Heart Failure and Reduced Ejection Fraction
Interventions: Online, patient-facing decision-making aid (app) with personalized risk information., Implantable Cardioverter Defibrillator (ICD), Online, patient-facing decision-making app without personalized risk information.; Other · Device
Lead sponsor: Stanford University; Other
Eligibility: 60 Years and older
Enrollment: 600 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2025 – 2028
U.S. locations: 2
States / cities: San Francisco, California • Greenville, North Carolina

Conditions: Sudden Cardiac Death, Heart Failure
Interventions: Educational Video1, Educational Video 2, Usual Care 3; Other
Lead sponsor: Duke University; Other
Eligibility: 21 Years and older
Enrollment: 343 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2016 – 2020
U.S. locations: 14
States / cities: San Francisco, California • Washington D.C., District of Columbia • Atlanta, Georgia + 11 more

Search by objective public record fields.

Deactivation of Implantable Cardioverter Defibrillator During Non-thoracic Surgical Procedures

Registry of Patients for MRI With Non-MRI Conditional Pacemakers and ICD Non-MRI Conditional Pacemakers and ICD

Paced Heart Rate Acceleration for Cardiac Conditioning

Flecainide for Catecholaminergic Polymorphic Ventricular Tachycardia

SJ4 Post Approval Study in Implantable Cardioverter-Defibrillator and Cardiac Resynchronization Therapy Defibrillator Patients

Remote Alert Pathway To Optimize CaRe of Cardiac Implantable Electrical Devices: The RAPTOR-CIED Study (Main Phase)

Dose Ranging Study of Celivarone With Amiodarone as Calibrator for the Prevention of Implantable Cardioverter Defibrillator (ICD) Interventions or Death

Air Pollution and Implantable Cardioverter Defibrillators

Myocardial Injury in Patients With Cardiac Implantable Electronic Devices Following Magnetic Resonance Imaging

Autologous Cultured Myoblasts (BioWhittaker) Transplanted Via Myocardial Injection

Remote Alert Pathway To Optimize CaRe of Cardiac Implantable Electrical Devices

Magnesium to Reduce Implantable Cardioverter Defibrillator (ICD) Shocks and Improve Patient's Quality of Life.

Patient Expectations After Implantable-cardioverter Defibrillator (ICD) Implantation

Safety and Performance Assessment of the Sphere-9™ Catheter and Affera™ Ablation System for the Treatment of Ventricular Tachycardia (Sphere-9 VT EFS)

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

Assessment of S-ICD Eligibility With 12-Lead ECG

TRAjectories and CLinical ExpeRiences of ICD Therapy Study

PREPARE - Primary Prevention Parameters Evaluation

Safety of Sports for Patients With Implantable Cardioverter-Defibrillators

Safety and Effectiveness of the Sphere-9™ Catheter and Affera™ Ablation System for the Treatment of Ventricular Tachycardia (Sphere VT)

Study of the Implantable Cardioverter Defibrillator (ICD) Intracardiac Electrograms

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

Developing a Digital Aid to Improve ICD Decisions

Educational Videos to Address Racial Disparities in Implantable Cardioverter Defibrillator Therapy