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ClinicalTrials.gov public records Last synced Oct 21, 2026, 10:15 AM EDT

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Showing 1–24 of 194 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Sudden Death Clear all
Completed No phase listed Observational

Personalized Risk Identification and Management for Arrhythmias and Heart Failure by ECG and MRI

NCT01353131
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 6, 2018 · Synced Oct 21, 2026, 10:15 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Improving Pediatrician Counseling About Infant Safe Sleep Using the Electronic Medical Record

NCT05503771
View directory record Official record
Conditions
Sudden Infant Death, Sudden Unexplained Infant Death
Interventions
ISA-MI, Standard of Care (SOC)
Behavioral · Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
3 Days to 75 Years
Enrollment
350 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 21, 2026 · Synced Oct 21, 2026, 10:15 AM EDT
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, 10:15 AM EDT
Completed No phase listed Observational Results available

Pre-arrival Instructions Effect on Bystander Cardiopulmonary Resuscitation (CPR).

NCT02007499
View directory record Official record
Conditions
Heart Arrest, Cardiac Arrest, Cardiopulmonary Arrest, Out of Hospital Cardiac Arrest, Sudden Cardiac Death
Interventions
Pre-Arrival Instructions
Other
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
21 Years and older
Enrollment
274 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Apr 7, 2026 · Synced Oct 21, 2026, 10:15 AM EDT
Terminated Phase 2 Interventional Results available

Treatment of Ventricular Tachyarrhythmias Refractory To Shock With Beta Blockers: The SHOCK and BLOCK Trial

NCT00401882
View directory record Official record
Conditions
Cardiac Arrest, Sudden Cardiac Death, Ventricular Fibrillation, Tachycardia, Ventricular
Interventions
Epinephrine, Metoprolol
Drug
Lead sponsor
David Haines, MD
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
Royal Oak, Michigan
Source: ClinicalTrials.gov public record
Updated May 25, 2017 · Synced Oct 21, 2026, 10:15 AM 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 21, 2026, 10:15 AM EDT
Completed No phase listed Observational

Study of the Implantable Cardioverter Defibrillator (ICD) Intracardiac Electrograms

NCT00916435
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Apr 21, 2015 · Synced Oct 21, 2026, 10:15 AM EDT
Completed No phase listed Observational

Genetic Risk Assessment of Defibrillator Events

NCT02045043
View directory record Official record
Conditions
Sudden Cardiac Death, Arrhythmias, Congestive Heart Failure, Cardiomyopathy
Interventions
Not listed
Lead sponsor
University of Iowa
Other
Eligibility
18 Years and older
Enrollment
1,807 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2012
U.S. locations
6
States / cities
Atlanta, Georgia • Boston, Massachusetts • Columbus, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 24, 2014 · Synced Oct 21, 2026, 10:15 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Factors Influencing the Racial Disparity in Sudden Infant Death Syndrome (SIDS)

NCT01361893
View directory record Official record
Conditions
Sudden Infant Death Syndrome
Interventions
Lifestyle Counseling
Other
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older · Female only
Enrollment
616 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2015
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Oct 19, 2018 · Synced Oct 21, 2026, 10:15 AM EDT
Recruiting Phase 4 Interventional

Comparative Effectiveness of Carvedilol Versus Metoprolol Succinate in Heart Failure Patients With an Implantable Cardioverter Defibrillator

NCT06964464
View directory record Official record
Conditions
Heart Failure With Reduced Ejection Fraction (HFrEF), Sudden Cardiac Death, Ventricular Arrhythmia, Implantable Cardioverter Defibrillator (ICD), Beta-blocker Therapy, Cardiomyopathy
Interventions
Metoprolol Succinate, Carvedilol
Drug
Lead sponsor
University of Rochester
Other
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2031
U.S. locations
13
States / cities
Scottsdale, Arizona • Rome, Georgia • Shawnee Mission, Kansas + 9 more
Source: ClinicalTrials.gov public record
Updated Sep 18, 2025 · Synced Oct 21, 2026, 10:15 AM EDT
Enrolling by invitation No phase listed Observational

Long-term Follow-up Study of Gene Therapy for Arrhythmogenic Cardiomyopathy Due to a Plakophilin-2 Pathogenic Variant

NCT07050160
View directory record Official record
Conditions
Arrhythmogenic Cardiomyopathy, PKP2-ACM, PKP2-ARVC
Interventions
Not listed
Lead sponsor
Lexeo Therapeutics
Industry
Eligibility
18 Years to 67 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Nov 12, 2025 · Synced Oct 21, 2026, 10:15 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, 10:15 AM 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 21, 2026, 10:15 AM EDT
Completed Not applicable Interventional Results available

ASSURE WCD Clinical Evaluation - Conversion Efficacy Study

NCT04132466
View directory record Official record
Conditions
Death, Sudden, Cardiac
Interventions
Defibrillation using the ASSURE wearable cardioverter defibrillator therapy delivered via a waveform delivery test system
Device
Lead sponsor
Kestra Medical Technologies, Inc.
Industry
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
4
States / cities
Anchorage, Alaska • Ann Arbor, Michigan • St Louis, Missouri + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 5, 2024 · Synced Oct 21, 2026, 10:15 AM EDT
Completed Not applicable Interventional Results available

Optimization of VNS in Epileptic Patients to Induce Cardioprotection

NCT04387435
View directory record Official record
Conditions
Epilepsy, Sudden Cardiac Death
Interventions
A change or titration in the current or frequency settings of the VNS therapy system.
Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 6, 2025 · Synced Oct 21, 2026, 10:15 AM EDT
Active, not recruiting Not applicable Interventional

Assessment of Combined CCM and ICD Device in HFrEF

NCT05855135
View directory record Official record
Conditions
Heart Failure, Heart Failure With Reduced Ejection Fraction, Implantable Defibrillator User, CCM Therapy, Non-ischemic Cardiomyopathy, Ischemic Cardiomyopathy, Sudden Cardiac Arrest, Arrhythmias, Cardiac, Ventricular Tachycardia, Ventricular Fibrillation
Interventions
OPTIMIZER® Integra CCM-D System (Treatment Arm)
Device
Lead sponsor
Impulse Dynamics
Industry
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
59
States / cities
Glendale, Arizona • Mesa, Arizona • Phoenix, Arizona + 40 more
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Oct 21, 2026, 10:15 AM EDT
Recruiting Not applicable Interventional

Developing and Testing Drone-Delivered AEDs for Cardiac Arrests In Rural America

NCT06229418
View directory record Official record
Conditions
Cardiac Arrest, Sudden Cardiac Arrest
Interventions
DFR AED Pilot Program
Other
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Clemmons, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 1, 2026 · Synced Oct 21, 2026, 10:15 AM EDT
Active, not recruiting Phase 2Phase 3 Interventional

A Study to Determine the Efficacy and Safety of Tividenofusp Alfa (DNL310) vs Idursulfase in Pediatric and Young Adult Participants With Neuronopathic (nMPS II) or Non-Neuronopathic Mucopolysaccharidosis Type II (nnMPS II)

NCT05371613
View directory record Official record
Conditions
Mucopolysaccharidosis II
Interventions
tividenofusp alfa, idursulfase
Drug
Lead sponsor
Denali Therapeutics Inc.
Industry
Eligibility
2 Years to 25 Years
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
8
States / cities
Oakland, California • Chicago, Illinois • Hackensack, New Jersey + 5 more
Source: ClinicalTrials.gov public record
Updated Sep 9, 2026 · Synced Oct 21, 2026, 10:15 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

JessieHug Feasibility and Usability Assessment

NCT06466148
View directory record Official record
Conditions
SIDS
Interventions
JessieHug
Device
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
0 Months to 4 Months
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 27, 2026 · Synced Oct 21, 2026, 10:15 AM EDT
Recruiting Not applicable Interventional

Support Via Online Social Networks to Promote Safe Infant Care Practices

NCT05767658
View directory record Official record
Conditions
Breastfeeding, Infant Death, Sudden Infant Death Syndrome Without Mention of Autopsy
Interventions
Safe Sleep, Breastfeeding, Early Brain Development and Parent-Child Relationships
Behavioral
Lead sponsor
University of Virginia
Other
Eligibility
Female only
Enrollment
3,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 12, 2026 · Synced Oct 21, 2026, 10:15 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Stearidonic Acid-Containing Foods on Eicosapentaenoic Acid Levels in Red Blood Cells and Omega-3 Index

NCT01749202
View directory record Official record
Conditions
Sudden Cardiac Death, Sudden Cardiac Arrest, Cardiovascular Disease
Interventions
Sunflower Oil Softgels, EPA softgels, Sunflower Oil Food, SDA soybean Oil Food
Dietary Supplement · Other
Lead sponsor
Solae, LLC
Industry
Eligibility
21 Years to 65 Years
Enrollment
126 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Glen Ellyn, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 13, 2012 · Synced Oct 21, 2026, 10:15 AM EDT
Active, not recruiting Phase 2Phase 3 Interventional

CAMPSIITE™ RGX-121 Gene Therapy in Subjects With MPS II (Hunter Syndrome)

NCT03566043
View directory record Official record
Conditions
Mucopolysaccharidosis Type II (MPS II)
Interventions
RGX-121
Genetic
Lead sponsor
REGENXBIO Inc.
Industry
Eligibility
4 Months to 5 Years · Male only
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2025
U.S. locations
4
States / cities
Oakland, California • New Brunswick, New Jersey • Philadelphia, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 28, 2025 · Synced Oct 21, 2026, 10:15 AM EDT
Completed Not applicable Interventional Results available

Heart Rate Response to Regadenoson and Sudden Cardiac Death

NCT01842035
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 18, 2022 · Synced Oct 21, 2026, 10:15 AM EDT
Completed Phase 4 Interventional Results available

'Effect of CRT on Defibrillation Threshold Estimates' Study

NCT00626093
View directory record Official record
Conditions
Sudden Cardiac Death
Interventions
Cardiac Resynchronization Therapy - Defibrillator (CRT-D)
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
2
States / cities
Santa Monica, California • Colorado Springs, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 5, 2019 · Synced Oct 21, 2026, 10:15 AM EDT