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ClinicalTrials.gov public records Last synced May 22, 2026, 2:45 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 128 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Death, Sudden, Cardiac Clear all
Completed Phase 3 Interventional
View directory record Official record
Conditions
Myocardial Infarction, Sudden Death
Interventions
Implantable Cardioverter Defibrillator + Usual Care, Usual care
Device · Other
Lead sponsor
University of Calgary
Other
Eligibility
18 Years to 80 Years
Enrollment
700 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2024
U.S. locations
29
States / cities
Huntsville, Alabama • Lakewood, Colorado • Tampa, Florida + 23 more
Source: ClinicalTrials.gov public record
Updated May 29, 2025 · Synced May 22, 2026, 2:45 AM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Bradycardia, Sudden Cardiac Arrest
Interventions
Remote Implant Support Capability
Other
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 23, 2014 · Synced May 22, 2026, 2:45 AM EDT
Active, not recruiting No phase listed Observational
View directory record Official record
Conditions
Sudden Cardiac Arrest, Ischemic Cardiomyopathy, Congestive Heart Failure
Interventions
PET scan quantifying sympathetic denervation using [18F]-LMI1195
Diagnostic Test
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
18 Years and older
Enrollment
302 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Mar 5, 2026 · Synced May 22, 2026, 2:45 AM EDT
Recruiting No phase listed Observational
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 1, 2025 · Synced May 22, 2026, 2:45 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Refractory Epilepsy, Arrhythmia, Sudden Death
Interventions
Medtronic REVEAL
Device
Lead sponsor
Thomas Jefferson University
Other
Eligibility
16 Years to 49 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2010
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 17, 2016 · Synced May 22, 2026, 2:45 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Heart Diseases, Ventricular Arrhythmia, Ventricular Fibrillation, Death, Sudden, Cardiac, Heart Arrest
Interventions
ECG
Procedure
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
549 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2012
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 22, 2015 · Synced May 22, 2026, 2:45 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Inpatients and Outpatients With Routine 12-lead ECG
Interventions
Not listed
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 70 Years
Enrollment
162 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 5, 2018 · Synced May 22, 2026, 2:45 AM EDT
Completed Not applicable Interventional Results available
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 13, 2022 · Synced May 22, 2026, 2:45 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Left Ventricular Systolic Dysfunction, Sudden Cardiac Death
Interventions
regadenoson
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
19 Years to 80 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2022
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Oct 17, 2022 · Synced May 22, 2026, 2:45 AM EDT
Recruiting No phase listed Observational
View directory record Official record
Conditions
Chronic Lymphocytic Leukemia (CLL), Waldenstr(SqrRoot)(Delta)m s Macroglobulinemia, Mantle Cell Lymphoma, Sudden Cardiac Death, Cardiac Arrhythmias, Hematologic Malignancies
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 110 Years
Enrollment
135 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced May 22, 2026, 2:45 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Choreatic Disorder
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
Not listed
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2003
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced May 22, 2026, 2:45 AM EDT
Recruiting No phase listed Observational
View directory record Official record
Conditions
Ischemic Cardiomyopathy, Nonischemic Cardiomyopathy
Interventions
Not listed
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 80 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2030
U.S. locations
2
States / cities
Newark, Delaware • Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 19, 2026 · Synced May 22, 2026, 2:45 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
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 9, 2011 · Synced May 22, 2026, 2:45 AM EDT
Terminated Not applicable Interventional
View directory record Official record
Conditions
Heart Failure With Reduced Ejection Fraction
Interventions
ICD implantation
Procedure
Lead sponsor
University of Rochester
Other
Eligibility
18 Years and older
Enrollment
3,290 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
13
States / cities
Portland, Maine • Baltimore, Maryland • Boston, Massachusetts + 10 more
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced May 22, 2026, 2:45 AM EDT
Completed Phase 3 Interventional
View directory record Official record
Conditions
Sudden Cardiac Death, Ventricular Arrythmias
Interventions
Ranolazine, Placebo
Drug
Lead sponsor
Aspirus Heart and Vascular Institute-Research and Education
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Wausau, Wisconsin
Source: ClinicalTrials.gov public record
Updated Feb 8, 2012 · Synced May 22, 2026, 2:45 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Cardiomyopathies, Cardiac Death, Sudden
Interventions
Subcutaneous ICD with same day discharge
Device
Lead sponsor
Emile Daoud, MD
Other
Eligibility
18 Years and older
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 22, 2021 · Synced May 22, 2026, 2:45 AM EDT
Withdrawn No phase listed Observational
View directory record Official record
Conditions
Tachycardia, Ventricular, Cardiac Sudden Death
Interventions
Not listed
Lead sponsor
Vicor Technologies, Inc.
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
19
States / cities
Los Angeles, California • San Ramon, California • Walnut Creek, California + 14 more
Source: ClinicalTrials.gov public record
Updated Dec 8, 2015 · Synced May 22, 2026, 2:45 AM EDT
Recruiting Not applicable Interventional
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Apr 26, 2026 · Synced May 22, 2026, 2:45 AM EDT
Not listed No phase listed Observational
View directory record Official record
Conditions
Sudden Cardiac Death
Interventions
Not listed
Lead sponsor
Harbinger Medical, Inc.
Industry
Eligibility
18 Years and older
Enrollment
320 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2009
U.S. locations
4
States / cities
Phoenix, Arizona • Wichita, Kansas • Boston, Massachusetts + 1 more
Source: ClinicalTrials.gov public record
Updated Nov 21, 2007 · Synced May 22, 2026, 2:45 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Sudden Cardiac Death, Bradycardia
Interventions
AV Therapy Assessment-B301 investigational device
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
211 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
36
States / cities
Anchorage, Alaska • Larkspur, California • Orlando, Florida + 32 more
Source: ClinicalTrials.gov public record
Updated Jul 31, 2017 · Synced May 22, 2026, 2:45 AM EDT
Recruiting Not applicable Interventional
View directory record Official record
Conditions
Tetralogy of Fallot, Ventricular Tachycardia, Sudden Cardiac Death
Interventions
Electroanatomic substrate mapping
Diagnostic Test
Lead sponsor
Boston Children's Hospital
Other
Eligibility
Not listed
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 7, 2023 · Synced May 22, 2026, 2:45 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Sudden Cardiac Arrest
Interventions
Jewel Patch Wearable Cardioverter Defibrillator (P-WCD)
Device
Lead sponsor
Element Science, Inc.
Industry
Eligibility
18 Years and older
Enrollment
322 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
30
States / cities
Jonesboro, Arkansas • Little Rock, Arkansas • Hartford, Connecticut + 25 more
Source: ClinicalTrials.gov public record
Updated Apr 26, 2026 · Synced May 22, 2026, 2:45 AM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Systolic Heart Failure, Sudden Cardiac Death
Interventions
ICD Decision Aid Toolkit
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
3
States / cities
Aurora, Colorado • Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Oct 30, 2019 · Synced May 22, 2026, 2:45 AM EDT
Recruiting No phase listed Observational
View directory record Official record
Conditions
Sudden Cardiac Arrest
Interventions
High School Students Survey
Other
Lead sponsor
Kansas City Heart Rhythm Research Foundation
Other
Eligibility
12 Years to 25 Years
Enrollment
5,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Oct 25, 2024 · Synced May 22, 2026, 2:45 AM EDT