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ClinicalTrials.gov public records Last synced Oct 30, 2026, 5:48 PM EDT

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Showing 1–24 of 129 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Cardiac Death, Sudden Clear all
Recruiting No phase listed Observational

A Study to Assess Real-world Patient Characteristics and Clinical Course for Symptomatic Patients With PKP2-ACM

NCT06976606
View directory record Official record
Conditions
Arrhythmogenic Cardiomyopathy, PKP2-ACM, PKP2-ARVC
Interventions
Not listed
Lead sponsor
Lexeo Therapeutics
Industry
Eligibility
18 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
6
States / cities
Redwood City, California • Baltimore, Maryland • Columbia, Maryland + 3 more
Source: ClinicalTrials.gov public record
Updated May 16, 2025 · Synced Oct 30, 2026, 5:48 PM EDT
Completed No phase listed Observational

Heart Rate Variability and Sudden Cardiac Death

NCT00005235
View directory record Official record
Conditions
Cardiovascular Diseases, Coronary Disease, Heart Diseases, Myocardial Infarction, Death, Sudden, Cardiac, Ventricular Arrhythmia
Interventions
Not listed
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
715 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1988 – 1993
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 24, 2015 · Synced Oct 30, 2026, 5:48 PM EDT
Terminated No phase listed Observational

LifeVest Post-CABG Registry

NCT01448005
View directory record Official record
Conditions
Sudden Cardiac Death, Ventricular Fibrillation, Ventricular Tachycardia, Ventricular Dysfunction, Myocardial Ischemia
Interventions
wearable defibrillator (LifeVest)
Device
Lead sponsor
Zoll Medical Corporation
Industry
Eligibility
18 Years and older
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
5
States / cities
Sacramento, California • Atlanta, Georgia • Takoma Park, Maryland + 2 more
Source: ClinicalTrials.gov public record
Updated Dec 6, 2017 · Synced Oct 30, 2026, 5:48 PM EDT
Active, not recruiting No phase listed Observational

PRE-DETERMINE Cohort Study

NCT01114269
View directory record Official record
Conditions
Coronary Artery Disease, Left Ventricular Dysfunction, Sudden Cardiac Death
Interventions
Not listed
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
5,764 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2026
U.S. locations
86
States / cities
Anchorage, Alaska • Glendale, Arizona • Phoenix, Arizona + 76 more
Source: ClinicalTrials.gov public record
Updated Oct 7, 2025 · Synced Oct 30, 2026, 5:48 PM EDT
Active, not recruiting No phase listed Observational

Longitudinal Evaluation of Active-Duty Personnel with Accessory Pathways (LEAD-AP)

NCT06798961
View directory record Official record
Conditions
Cardiac Death, Cardiac Death, Sudden, Wolf Parkinson White Syndrome
Interventions
Ablation, Standard of care without ablation
Procedure
Lead sponsor
United States Naval Medical Center, San Diego
Federal
Eligibility
18 Years to 40 Years
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Mar 14, 2025 · Synced Oct 30, 2026, 5:48 PM EDT
Completed No phase listed Observational

LifeVest Wearable Cardioverter Defibrillator WEARIT-III Registry

NCT02700880
View directory record Official record
Conditions
Ischemic Heart Failure
Interventions
LifeVest
Device
Lead sponsor
Zoll Medical Corporation
Industry
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Mar 28, 2019 · Synced Oct 30, 2026, 5:48 PM 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 30, 2026, 5:48 PM 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 30, 2026, 5:48 PM EDT
Completed Phase 4 Interventional

Predictive Risk Stratification Through T Variability in ICD Patients Without Pacing Indications

NCT00560768
View directory record Official record
Conditions
Sudden Cardiac Death
Interventions
Ovatio VR 6250 or DR6550
Device
Lead sponsor
LivaNova
Industry
Eligibility
Not listed
Enrollment
198 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
7
States / cities
Sheffield, Alabama • Tarzana, California • Atlanta, Georgia + 4 more
Source: ClinicalTrials.gov public record
Updated Jan 12, 2015 · Synced Oct 30, 2026, 5:48 PM EDT
Completed Not applicable Interventional Results available

Long QT Syndrome and Sleep Apnea

NCT03678311
View directory record Official record
Conditions
Long QT Syndrome, Sleep Apnea
Interventions
Continuous Positive Airway Pressure (CPAP)
Device
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years to 75 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 2, 2020 · Synced Oct 30, 2026, 5:48 PM EDT
Completed Phase 3 Interventional Results available

Ranolazine Implantable Cardioverter-Defibrillator Trial

NCT01215253
View directory record Official record
Conditions
Ischemic Cardiomyopathy, Nonischemic Cardiomyopathy, Heart Failure
Interventions
Ranolazine
Drug
Lead sponsor
University of Rochester
Other
Eligibility
21 Years and older
Enrollment
1,012 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2017
U.S. locations
83
States / cities
Tucson, Arizona • Little Rock, Arkansas • East Palo Alto, California + 70 more
Source: ClinicalTrials.gov public record
Updated Aug 27, 2018 · Synced Oct 30, 2026, 5:48 PM EDT
Recruiting Phase 1 Interventional

A Phase 1, Dose Escalation Trial of RP-A601 in Subjects With PKP2 Variant-Mediated Arrhythmogenic Cardiomyopathy (PKP2-ACM)

NCT05885412
View directory record Official record
Conditions
PKP2 Arrhythmogenic Cardiomyopathy (PKP2-ACM)
Interventions
RP-A601
Genetic
Lead sponsor
Rocket Pharmaceuticals Inc.
Industry
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
3
States / cities
La Jolla, California • Durham, North Carolina • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 16, 2026 · Synced Oct 30, 2026, 5:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Smoking and Ventricular Repolarization

NCT03916341
View directory record Official record
Conditions
Sudden Cardiac Death, Prolonged QTc Interval
Interventions
EC with nicotine, EC without nicotine, control, TC with nicotine (own brand), research TC with very low level nicotine
Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
21 Years to 45 Years
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 4, 2023 · Synced Oct 30, 2026, 5:48 PM EDT
Not listed No phase listed Observational

South Asian Arrhythmogenic Cardiomyopathy Registry

NCT04895540
View directory record Official record
Conditions
Arrhythmogenic Right Ventricular Cardiomyopathy, Arrhythmogenic Right Ventricular Dysplasia, Arrhythmogenic Ventricular Cardiomyopathy, Arrhythmogenic Cardiomyopathy, Ventricular Tachycardia, Sudden Cardiac Death
Interventions
ECG, Echocardiography, Cardiac MRI, Ambulatory ECG recording, Cardiac EP study, All study subjects will undergo sample collection for genetic testing.
Diagnostic Test · Genetic
Lead sponsor
Sheri Kashmir Institute of Medical Sciences
Other
Eligibility
Not listed
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 2, 2021 · Synced Oct 30, 2026, 5:48 PM EDT
Enrolling by invitation No phase listed Observational

IVTCC 2.0: A Prospective Multicenter Ventricular Tachycardia Catheter Ablation Registry

NCT04520347
View directory record Official record
Conditions
Ventricular Arrhythmia, Ventricular Tachycardia, Premature Ventricular Contraction (PVC), Cardiomyopathy
Interventions
Not listed
Lead sponsor
University of California, Los Angeles
Other
Eligibility
Not listed
Enrollment
10,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2027
U.S. locations
34
States / cities
Phoenix, Arizona • Los Angeles, California • Sacramento, California + 25 more
Source: ClinicalTrials.gov public record
Updated Dec 15, 2025 · Synced Oct 30, 2026, 5:48 PM EDT
Completed Not applicable Interventional Results available

ECPR for Refractory Out-Of-Hospital Cardiac Arrest

NCT03065647
View directory record Official record
Conditions
Cardiac Arrest, Heart Arrest, Sudden Cardiac Arrest, Cardiopulmonary Arrest, Death, Sudden, Cardiac, Cardiopulmonary Resuscitation, CPR, Extracorporeal Cardiopulmonary Resuscitation, Extracorporeal Membrane Oxygenation
Interventions
Expedited Transport With Mechanical CPR
Device
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 70 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 3, 2021 · Synced Oct 30, 2026, 5:48 PM EDT
Recruiting No phase listed Observational

Observational Study of Cardiac Arrhythmias During Treatment With BTK Inhibitors or Venetoclax

NCT05724121
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 Oct 29, 2026 · Synced Oct 30, 2026, 5:48 PM EDT
Active, not recruiting No phase listed Observational

International Spontaneous Coronary Artery Dissection (SCAD) "iSCAD" Registry

NCT04496687
View directory record Official record
Conditions
Spontaneous Coronary Artery Dissection
Interventions
Not listed
Lead sponsor
SCAD Alliance
Other
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
30
States / cities
Los Angeles, California • San Francisco, California • Aurora, Colorado + 24 more
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Oct 30, 2026, 5:48 PM EDT
Completed No phase listed Observational

T-Wave Alternans in Dialysis Patients

NCT00621426
View directory record Official record
Conditions
Sudden Cardiac Death, End Stage Renal Disease
Interventions
Not listed
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 90 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 12, 2015 · Synced Oct 30, 2026, 5:48 PM EDT
Completed Phase 2 Interventional Results available

Coenzyme Q10 in Post-Cardiac Arrest Cerebral Resuscitation

NCT01319110
View directory record Official record
Conditions
Cardiac Arrest, Sudden Cardiac Arrest
Interventions
Coenzyme Q10, Placebo
Drug · Dietary Supplement
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 31, 2017 · Synced Oct 30, 2026, 5:48 PM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

Cor360: Clinician-Facing Broad-Spectrum Cardiac Phenotyping and Risk Assessment Using COR® Wearable ECG to Inform Outcomes-Oriented Care Pathways

NCT07775976
View directory record Official record
Conditions
Cardiovascular Diseases, Cardiovascular Diseases Risk, Cardiac Conduction System Disease, Bundle/Fascicular Abnormalities, His-Purkinje Disease, Arrhythmias, Cardiac, Rhythm Phenotypes, Myocardial Ischemia, Syncope, Syncope Recurrent, Syncope and Collapse, Seizure Disorder, Sleep Apnea Syndrome, Obstructive, Decision Support Systems, Clinical, Heart Failure - NYHA II - IV, Heart Failure (for Example, Fluid Overload), HRV, Cardiopulmonary, Sudden Cardiac Arrest, Cardiac Arrest (CA), Ventricular Arrhythmias and Cardiac Arrest, Ventricular Fibrillation, QT Dispersion, Atrial Cardiomyopathy
Interventions
COR Wearable ECG Monitoring, Cor360 Clinician-Facing Decision-Aid Reporting
Device · Other
Lead sponsor
Peerbridge Health, Inc
Industry
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2030
U.S. locations
2
States / cities
Pasadena, California • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 21, 2026 · Synced Oct 30, 2026, 5:48 PM EDT
Completed No phase listed Observational Results available

S-ICD® System Post Approval Study

NCT01736618
View directory record Official record
Conditions
Primary Prevention of Sudden Cardiac Arrest, Secondary Prevention of Sudden Cardiac Arrest
Interventions
S-ICD System
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
Not listed
Enrollment
1,766 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2021
U.S. locations
87
States / cities
Huntsville, Alabama • Mesa, Arizona • Phoenix, Arizona + 72 more
Source: ClinicalTrials.gov public record
Updated Mar 18, 2024 · Synced Oct 30, 2026, 5:48 PM EDT
Completed No phase listed Observational

Prognostic Significance of T Wave Alternans

NCT00006501
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 23, 2015 · Synced Oct 30, 2026, 5:48 PM EDT
Withdrawn No phase listed Observational

Analyzing Gene Regions That May Interact With the Effectiveness of High Blood Pressure Drugs

NCT00573092
View directory record Official record
Conditions
Myocardial Infarction, Cerebrovascular Accident, Death, Sudden, Cardiac
Interventions
Not listed
Lead sponsor
University of Washington
Other
Eligibility
30 Years to 79 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2016
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Nov 9, 2016 · Synced Oct 30, 2026, 5:48 PM EDT