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ClinicalTrials.gov public records Last synced Oct 21, 2026, 10:31 AM EDT

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Showing 73–96 of 255 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Defibrillators Clear all
Not listed No phase listed Observational

CarDiac MagnEtic Resonance for Primary Prevention Implantable CardioVerter DebrillAtor ThErapy: an International Registry (DERIVATE)

NCT03352648
View directory record Official record
Conditions
Heart Failure, Left Ventricular Systolic Dysfunction
Interventions
Not listed
Lead sponsor
Gianluca Pontone, MD, PhD
Other
Eligibility
Not listed
Enrollment
4,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2020
U.S. locations
2
States / cities
Chicago, Illinois • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jun 6, 2019 · Synced Oct 21, 2026, 10:31 AM EDT
Completed No phase listed Observational

Effects of Monopolar Electrocautery Use During Surgery on Implanted Cardiac Defibrillators

NCT01572246
View directory record Official record
Conditions
Heart Failure, Tachycardia, Ventricular
Interventions
Optimal placement of return pad
Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years and older
Enrollment
167 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Feb 24, 2017 · Synced Oct 21, 2026, 10:31 AM 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 10, 2014 · Synced Oct 21, 2026, 10:31 AM EDT
Completed No phase listed Observational

Reconstruction of 12-Lead Electrogram From Intracardiac Signals From Defibrillators During or After Implantation

NCT00890461
View directory record Official record
Conditions
ICD
Interventions
CT scan of the chest without contrast
Radiation
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2017
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 3, 2017 · Synced Oct 21, 2026, 10:31 AM EDT
Completed No phase listed Observational

Cutaneous Heart Sounds Data Collection During Cardiac Resynchronization Therapy (CRT) Optimization Study

NCT01609985
View directory record Official record
Conditions
Heart Failure
Interventions
Not listed
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
5
States / cities
Riverside, California • Orlando, Florida • Duluth, Minnesota + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 1, 2013 · Synced Oct 21, 2026, 10:31 AM EDT
Completed Not applicable Interventional

Positive Therapy for Autonomic Function & Mood in ICD Patients

NCT02088619
View directory record Official record
Conditions
Ventricular Arrhythmia, Implantable Cardioverter Defibrillator
Interventions
Quality of Life Therapy (QOLT), Heart Healthy Education (HHE)
Behavioral
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 2, 2017 · Synced Oct 21, 2026, 10:31 AM EDT
Terminated Phase 3 Interventional Results available

International Study to Determine if AdreView Heart Function Scan Can be Used to Identify Patients With Mild or Moderate Heart Failure (HF) That Benefit From Implanted Medical Device

NCT02656329
View directory record Official record
Conditions
Heart Failure
Interventions
Iobenguane I -123 Injection, Implantable Cardioverter Defibrillator, Thyroid blocking
Drug · Device
Lead sponsor
GE Healthcare
Industry
Eligibility
18 Years and older
Enrollment
395 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
29
States / cities
Birmingham, Alabama • Bakersfield, California • La Mesa, California + 24 more
Source: ClinicalTrials.gov public record
Updated May 22, 2019 · Synced Oct 21, 2026, 10:31 AM EDT
Completed No phase listed Observational Results available

REPLACE: Implantable Cardiac Pulse Generator Replacement Registry

NCT00395447
View directory record Official record
Conditions
Device Replacement, Elective Replacement (ERI), Device Advisory, Device Upgrade, Postoperative Complications
Interventions
Straight-forward Device Replacement, Device Replacement with Upgrade
Procedure
Lead sponsor
Biotronik, Inc.
Industry
Eligibility
18 Years and older
Enrollment
1,744 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
71
States / cities
Birmingham, Alabama • Mesa, Arizona • Modesto, California + 58 more
Source: ClinicalTrials.gov public record
Updated Apr 14, 2015 · Synced Oct 21, 2026, 10:31 AM 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 21, 2026, 10:31 AM EDT
Completed Not applicable Interventional Results available

Hospital Wearable Defibrillator Inpatient Study

NCT02122549
View directory record Official record
Conditions
In-Hospital Cardiac Arrest
Interventions
HWD1000
Device
Lead sponsor
Zoll Medical Corporation
Industry
Eligibility
18 Years and older
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
8
States / cities
Los Angeles, California • Danbury, Connecticut • Atlantis, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated May 31, 2017 · Synced Oct 21, 2026, 10:31 AM EDT
Completed Not applicable Interventional Results available

Vest Prevention of Early Sudden Death Trial and VEST Registry

NCT01446965
View directory record Official record
Conditions
Myocardial Infarction, Ventricular Dysfunction, Sudden Death, Ventricular Tachycardia, Ventricular Fibrillation
Interventions
wearable defibrillator
Device
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
2,348 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2019
U.S. locations
57
States / cities
Anchorage, Alaska • Fresno, California • Salinas, California + 47 more
Source: ClinicalTrials.gov public record
Updated Jan 20, 2021 · Synced Oct 21, 2026, 10:31 AM EDT
Completed Phase 4 Interventional

The Use of Magnesium to Improve Blood Pressure, Cholesterol, and Glucose Control

NCT00282659
View directory record Official record
Conditions
Coronary Artery Disease, Hypertension, Dyslipidemia, Diabetes
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
Source: ClinicalTrials.gov public record
Updated May 21, 2019 · Synced Oct 21, 2026, 10:31 AM EDT
Completed No phase listed Observational

InSync Implantable Cardioverter Defibrillator Registry: Cardiac Resynchronization Therapy

NCT00289302
View directory record Official record
Conditions
Heart Failure, Cardiomyopathy
Interventions
Cardiac resynchronization therapy device
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
51
States / cities
Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 48 more
Source: ClinicalTrials.gov public record
Updated Oct 5, 2007 · Synced Oct 21, 2026, 10:31 AM EDT
Completed No phase listed Observational

Precision Event Monitoring for Patients With Heart Failure Using HeartLogic

NCT03579641
View directory record Official record
Conditions
Heart Failure, Defibrillators, Implantable, Monitoring, Physiologic, Cardiac Resynchronization Therapy, Cardiovascular Disease, Heart Disease
Interventions
HeartLogic Sensors
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
2,184 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
56
States / cities
Birmingham, Alabama • Jonesboro, Arkansas • Little Rock, Arkansas + 48 more
Source: ClinicalTrials.gov public record
Updated Oct 25, 2022 · Synced Oct 21, 2026, 10:31 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, 10:31 AM EDT
Completed No phase listed Observational

Patient and Physician Survey Determinants of Appropriate ICD Utilization

NCT01514773
View directory record Official record
Conditions
Heart Failure, Systolic
Interventions
Not listed
Lead sponsor
Todd M Koelling, MD
Other
Eligibility
18 Years and older
Enrollment
452 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 17, 2017 · Synced Oct 21, 2026, 10:31 AM EDT
Completed Phase 3 Interventional

Long Term Safety of 125 mg Per Day of Oral Azimilide in Patients With Implantable Cardioverter Defibrillator (ICDs)

NCT00751738
View directory record Official record
Conditions
Arrhythmias
Interventions
azimilide dihydrochloride
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
18 Years and older
Enrollment
330 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2005
U.S. locations
50
States / cities
Mobile, Alabama • Little Rock, Arkansas • La Jolla, California + 43 more
Source: ClinicalTrials.gov public record
Updated Feb 1, 2017 · Synced Oct 21, 2026, 10:31 AM EDT
Not listed No phase listed Observational

Electrophysiologic and Morphologic Assessment of the Substrate to Guide Implantation of Defibrillators in Dilated Cardiomyopathy

NCT01378572
View directory record Official record
Conditions
Dilated Cardiomyopathy, Primary Prevention of Sudden Cardiac Death, Implantable Cardioverter Defibrillator
Interventions
Not listed
Lead sponsor
Catholic University of the Sacred Heart
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2009
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jun 22, 2011 · Synced Oct 21, 2026, 10:31 AM EDT
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 28, 2009 · Synced Oct 21, 2026, 10:31 AM EDT
Completed Not applicable Interventional Results available

Multicenter Automatic Defibrillator Implantation Trial With Subcutaneous Implantable Cardioverter Defibrillator

NCT02787785
View directory record Official record
Conditions
Tachycardia, Diabetes Mellitus, Cardiovascular Disease
Interventions
Subcutaneous Implantable Cardioverter Defibrillator
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
65 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
36
States / cities
Huntsville, Alabama • Scottsdale, Arizona • Jonesboro, Arkansas + 31 more
Source: ClinicalTrials.gov public record
Updated Aug 22, 2024 · Synced Oct 21, 2026, 10:31 AM EDT
Completed No phase listed Observational

Heart Sounds Registry

NCT03203629
View directory record Official record
Conditions
Heart Failure; With Decompensation
Interventions
Wearable Cardioverter Defibrillator (WCD)
Device
Lead sponsor
Zoll Medical Corporation
Industry
Eligibility
18 Years and older
Enrollment
705 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
17
States / cities
National City, California • Atlantis, Florida • Fort Lauderdale, Florida + 14 more
Source: ClinicalTrials.gov public record
Updated Apr 23, 2021 · Synced Oct 21, 2026, 10:31 AM EDT
Completed Not applicable Interventional Results available

A Trial Assessing The Association Between Type Of Local Anesthesia Treatment And Postoperative Pain In Patients In Having Undergone Arrhythmia Surgery

NCT01300377
View directory record Official record
Conditions
Post-operative Pain
Interventions
Bupivacaine / Lidocaine, Lidocaine
Drug
Lead sponsor
Baylor Research Institute
Other
Eligibility
18 Years and older
Enrollment
350 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2018
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Sep 1, 2026 · Synced Oct 21, 2026, 10:31 AM EDT
Terminated Not applicable Interventional Results available

Wearable Cardioverter Defibrillator in Hemodialysis Patients (WED-HED) Study

NCT02481206
View directory record Official record
Conditions
Sudden Cardiac Death, Sudden Cardiac Arrest
Interventions
Wearable Cardioverter Defibrillator
Device
Lead sponsor
Zoll Medical Corporation
Industry
Eligibility
50 Years and older
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
31
States / cities
Corona, California • Downey, California • Escondido, California + 28 more
Source: ClinicalTrials.gov public record
Updated Jan 19, 2021 · Synced Oct 21, 2026, 10:31 AM EDT
Recruiting No phase listed Observational

HeartStart FRx Defibrillator Event Registry

NCT04250857
View directory record Official record
Conditions
Sudden Cardiac Arrest
Interventions
HeartStart FRX
Device
Lead sponsor
Heartstream US LLC
Industry
Eligibility
Not listed
Enrollment
1,400 participants
Timeline
2019 – 2030
U.S. locations
1
States / cities
Monroeville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Oct 21, 2026, 10:31 AM EDT