Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 7, 2026, 6:52 PM EDT

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Showing 1–24 of 24 matching trials from the live ClinicalTrials.gov search.
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Conditions
Atrial Fibrillation
Interventions
Carotid Ultrasound
Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 95 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Rochester, Minnesota
Conditions
Ventricular Fibrillation
Interventions
Simulation-Based Training
Behavioral
Lead sponsor
St. Luke's-Roosevelt Hospital Center
Other
Eligibility
18 Years and older
Enrollment
157 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
New York, New York
Recruiting No phase listed Observational Accepts healthy volunteers

MANAGE-VT Registry - MANAGEment of Ventricular Tachycardia Outcomes Registry

NCT06455488
Conditions
Ventricular Tachycardia
Interventions
Ventricular Tachycardia Ablation, ICD Implant, Antiarrhythmic drug, EKG, Cardioversion, Echocardiogram
Procedure · Device · Drug + 1 more
Lead sponsor
CorVita Science Foundation
Other
Eligibility
18 Years and older
Enrollment
130 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2030
U.S. locations
1
States / cities
Chicago, Illinois
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
Conditions
Tachycardia, Ventricular Arrhythmias
Interventions
Defibrillation following induction of VT/VF
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
14
States / cities
Scottsdale, Arizona • Hartford, Connecticut • Jacksonville, Florida + 10 more
Conditions
Tachyarrhythmia, Arrhythmias, Cardiac
Interventions
Recording
Other
Lead sponsor
NewPace Ltd
Industry
Eligibility
18 Years and older
Enrollment
91 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Roslyn, New York
Conditions
Heart Failure, Congestive, Tachycardia, Ventricular
Interventions
RV apical vs RV septal defibrillation threshold testing
Device
Lead sponsor
Associates in Cardiology, PA
Other
Eligibility
21 Years and older
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Silver Spring, Maryland
Active, not recruiting Not applicable Interventional

Assessment of Combined CCM and ICD Device in HFrEF

NCT05855135
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
Conditions
Ventricular Arrythmia
Interventions
ommitence of defibrillation testing
Procedure
Lead sponsor
Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
Other
Eligibility
18 Years and older
Enrollment
965 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2025
U.S. locations
7
States / cities
Orlando, Florida • Atlanta, Georgia • Chicago, Illinois + 3 more
Completed No phase listed Observational

iBeat Wristwatch Validation Study

NCT03711695
Conditions
Arrythmia, Cardiac
Interventions
iBeat wristwatch device
Device
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years to 85 Years
Enrollment
55 participants
Timeline
2018
U.S. locations
1
States / cities
San Francisco, California
Conditions
ICD
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Rochester, Minnesota
Conditions
Implanted With Any Currently (and Any Future) FDA-approved Medtronic ICD or CRT Device, to Which is Attached a St. Jude Riata Lead
Interventions
fluoroscopy, synchronized high-voltage shock, Holter monitor
Procedure
Lead sponsor
Hartford Hospital
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
1
States / cities
Hartford, Connecticut
Active, not recruiting Not applicable Interventional

ASCEND CSP IDE Study

NCT06830746
Conditions
Heart Failure, Ventricular Arrythmia
Interventions
LBBAP Implant with a CSP ICD Lead
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years to 99 Years
Enrollment
414 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
16
States / cities
Huntsville, Alabama • Phoenix, Arizona • Jonesboro, Arkansas + 13 more
Completed Not applicable Interventional Results available

Extravascular ICD Pivotal Study

NCT04060680
Conditions
Tachycardia, Ventricular Arrythmia
Interventions
Defibrillation using the Extravascular ICD
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
393 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
33
States / cities
Scottsdale, Arizona • La Jolla, California • Redwood City, California + 18 more
Conditions
Atrial Fibrillation
Interventions
non-invasive testing
Procedure
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Dallas, Texas
Conditions
Atrial Fibrillation, Cognitive Symptom, Executive Dysfunction, Cognitive Change, Cognitive Impairment, Cognitive Impairment, Mild
Interventions
Standard of Care Interventions to convert patient from atrial fibrillation to normal rhythm
Other
Lead sponsor
David Brunk, PA-C, MMS
Other
Eligibility
35 Years to 80 Years
Enrollment
600 participants
Timeline
2019 – 2027
U.S. locations
1
States / cities
Colorado Springs, Colorado
Completed Not applicable Interventional Results available

The Effect of an Azygos Vein Coil on Defibrillation Threshold

NCT00798174
Conditions
Heart Failure
Interventions
Standard configuration vs. azygos coil
Device
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
St Louis, Missouri
Conditions
Pain
Interventions
lidocaine, Placebo
Drug
Lead sponsor
Drexel University College of Medicine
Other
Eligibility
18 Years to 80 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Conditions
Tachyarrhythmia
Interventions
Defibrillation (RV Implant), Defibrillation (LBBAP Implant)
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
12 Years and older
Enrollment
998 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
23
States / cities
Huntsville, Alabama • Torrance, California • Hartford, Connecticut + 19 more
Completed No phase listed Observational Results available

Precise Measurement of Pediatric Defibrillation Thresholds

NCT01043562
Conditions
Pediatrics, Defibrillators, Implantable
Interventions
Defibrillator threshold testing, Observation of post-shock intrinsic cardiac rhythm
Diagnostic Test · Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
Not listed
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Completed Not applicable Interventional Results available

ASSURE WCD Clinical Evaluation - Conversion Efficacy Study

NCT04132466
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
Completed No phase listed Observational Results available

LifeVest Trends Validation Protocol

NCT02149290
Conditions
Heart Failure
Interventions
Trends-equipped LifeVest 4000
Device
Lead sponsor
Zoll Medical Corporation
Industry
Eligibility
18 Years and older
Enrollment
198 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
13
States / cities
Orange, California • Boca Raton, Florida • Lawrenceville, Georgia + 10 more
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
Conditions
Cardiomyopathy, Heart Failure, Cardiac Arrhythmia
Interventions
Standard Defibrillation Testing, Upper Limit of Vulnerability Testing
Device
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
La Jolla, California