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ClinicalTrials.gov public records Last synced Sep 30, 2026, 10:46 AM EDT

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Showing 25–48 of 1,571 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Heart Arrhythmias Clear all
Completed Phase 2 Interventional

Patient and Partner Intervention After an Implantable Cardioverter Defibrillator (ICD)

NCT01252615
View directory record Official record
Conditions
Implantable Cardioverter Defibrillator (ICD)
Interventions
patient only, patient and partner intervention
Behavioral
Lead sponsor
University of Washington
Other
Eligibility
21 Years and older
Enrollment
301 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 26, 2016 · Synced Sep 30, 2026, 10:46 AM EDT
Completed Not applicable Interventional

Telemedicine Enabling Patients in Self-care Behaviors

NCT04297735
View directory record Official record
Conditions
Arrythmia
Interventions
Standard of care group, Telemedicine group, Telemedicine
Other · Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 22, 2021 · Synced Sep 30, 2026, 10:46 AM EDT
Completed No phase listed Observational Results available

Ondansetron and the QT Interval In Adult Emergency Department Patients

NCT01759420
View directory record Official record
Conditions
Ondansetron
Interventions
Ondansetron
Drug
Lead sponsor
C.R.Darnall Army Medical Center
Federal
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
2
States / cities
Fort Hood, Texas • Tacoma, Washington
Source: ClinicalTrials.gov public record
Updated Jun 26, 2014 · Synced Sep 30, 2026, 10:46 AM EDT
Terminated No phase listed Observational

Risk Factors That Contribute to the Maintenance of Sinus Rhythm

NCT04655443
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Standard Care
Other
Lead sponsor
Danbury Hospital
Other
Eligibility
18 Years and older
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
Danbury, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 14, 2021 · Synced Sep 30, 2026, 10:46 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 Sep 30, 2026, 10:46 AM EDT
Terminated No phase listed Observational

Rhythm Disturbances After Ventricular Septal Defects

NCT00208624
View directory record Official record
Conditions
Heart Block After Surgery
Interventions
Not listed
Lead sponsor
Emory University
Other
Eligibility
Not listed
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated May 5, 2014 · Synced Sep 30, 2026, 10:46 AM EDT
Withdrawn No phase listed Observational

Selective AV Nodal Vagal Stimulation For Reduction of the Ventricular Rate During Atrial Fibrillation

NCT00850980
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Not listed
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 10, 2017 · Synced Sep 30, 2026, 10:46 AM EDT
Recruiting No phase listed Observational

Tracking Results of Ablations to Combat AF Registry Generation 2

NCT05111015
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Open Concomitant Surgical Ablation Procedures, Hybrid (Convergent) Ablation Procedures, AtriCure Hybrid Totally Thoracoscopic Ablation Procedures, AtriCure LAA Exclusion Procedures
Device
Lead sponsor
AtriCure, Inc.
Industry
Eligibility
18 Years and older
Enrollment
10,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2040
U.S. locations
26
States / cities
Huntsville, Alabama • Jonesboro, Arkansas • Little Rock, Arkansas + 23 more
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Sep 30, 2026, 10:46 AM EDT
Completed Not applicable Interventional Results available

Atropine in Catecholaminergic Polymorphic Ventricular Tachycardia (CPVT)

NCT02927223
View directory record Official record
Conditions
Catecholaminergic Polymorphic Ventricular Tachycardia
Interventions
Atropine, Exercise treadmill test
Drug · Procedure
Lead sponsor
Vanderbilt University
Other
Eligibility
6 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 28, 2020 · Synced Sep 30, 2026, 10:46 AM EDT
Terminated No phase listed Observational

Infant Medical Records: Case Report Proposal

NCT00268060
View directory record Official record
Conditions
Congenital Disorders
Interventions
Not listed
Lead sponsor
Children's Healthcare of Atlanta
Other
Eligibility
Up to 21 Years · Male only
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2004
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated May 7, 2007 · Synced Sep 30, 2026, 10:46 AM EDT
Terminated Not applicable Interventional Results available

Evaluation of the Phased Radio Frequency Ablation System

NCT01693120
View directory record Official record
Conditions
Persistent Atrial Fibrillation
Interventions
Medtronic Phased RF Ablation System
Device
Lead sponsor
Medtronic Cardiac Ablation Solutions
Industry
Eligibility
18 Years to 75 Years
Enrollment
199 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
31
States / cities
Phoenix, Arizona • Newport Beach, California • Fort Collins, Colorado + 26 more
Source: ClinicalTrials.gov public record
Updated Feb 13, 2025 · Synced Sep 30, 2026, 10:46 AM EDT
Recruiting No phase listed Observational

Human/Machine Interface: What the HeartMate 3 ® Device Tells Us About the Future

NCT06039176
View directory record Official record
Conditions
LVAD, Frailty, GI Bleed, Right Heart Failure, Infections, Hypertension, Arrhythmias, Stroke
Interventions
HeartMate 3 (R) left ventricular assist device
Device
Lead sponsor
International Consortium of Circulatory Assist Clinicians
Other
Eligibility
18 Years to 100 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
7
States / cities
San Francisco, California • Gainesville, Florida • Chicago, Illinois + 4 more
Source: ClinicalTrials.gov public record
Updated Dec 16, 2025 · Synced Sep 30, 2026, 10:46 AM EDT
Completed Not applicable Interventional

VOLT-AF IDE Clinical Study

NCT06223789
View directory record Official record
Conditions
Atrial Arrhythmia, Atrial Fibrillation, Paroxysmal Atrial Fibrillation, Persistent Atrial Fibrillation
Interventions
Pulsed Field Ablation
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
392 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
26
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Los Angeles, California + 22 more
Source: ClinicalTrials.gov public record
Updated Aug 6, 2026 · Synced Sep 30, 2026, 10:46 AM EDT
Terminated No phase listed Observational

Effect of Pradaxa vs Warfarin on Bone Mass and Bone Turnover Markers

NCT02791555
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Not listed
Lead sponsor
UConn Health
Other
Eligibility
50 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 11, 2017 · Synced Sep 30, 2026, 10:46 AM EDT
Not listed No phase listed Observational

Comparison of Continuous Sternal ECG Patch Monitors (Carnation and Zio) Trial

NCT02031484
View directory record Official record
Conditions
Syncope, Presyncope, Palpitations, Atrial Fibrillation, Supraventricular Tachycardia
Interventions
Not listed
Lead sponsor
Bardy Diagnostics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
4
States / cities
Chicago, Illinois • Iowa City, Iowa • Charlotte, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 7, 2016 · Synced Sep 30, 2026, 10:46 AM EDT
Active, not recruiting No phase listed Observational

Real-world Safety and Effectiveness Registry of Catheter Ablation of Paroxysmal Atrial Fibrillation as Initial Control Therapy With the Thermocool SmartTouch SF Catheter (A Sub-study of REAL AF Registry)

NCT07092774
View directory record Official record
Conditions
Paroxysmal Atrial Fibrillation (PAF)
Interventions
Ablation
Device
Lead sponsor
Heart Rhythm Clinical and Research Solutions, LLC
Other
Eligibility
18 Years and older
Enrollment
344 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
12
States / cities
Birmingham, Alabama • Ventura, California • Jacksonville, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Oct 31, 2025 · Synced Sep 30, 2026, 10:46 AM EDT
Terminated No phase listed Observational

Measuring Electrical Resistance of Different Tissues on the Outer Surface of the Heart

NCT00291174
View directory record Official record
Conditions
Cardiomyopathies, Ventricular Dysfunction, Myocardial Infarction, Arrhythmia
Interventions
Not listed
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 75 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 16, 2016 · Synced Sep 30, 2026, 10:46 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Clinical Validation of the AliveCor Kardia 12L and 6L Devices

NCT05053243
View directory record Official record
Conditions
Arrhythmia
Interventions
Kardia 12L
Device
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 90 Years
Enrollment
221 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Mar 6, 2024 · Synced Sep 30, 2026, 10:46 AM EDT
Completed Phase 2 Interventional Results available

Odiparcil For The Prevention Of Venous Thromboembolism

NCT00244725
View directory record Official record
Conditions
Deep Vein Thrombosis, Fibrillation, Atrial, Venous Thromboembolism, Pulmonary Embolism
Interventions
Odiparcil, Warfarin, Coumadin
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
35 Years and older
Enrollment
961 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
46
States / cities
Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 37 more
Source: ClinicalTrials.gov public record
Updated May 2, 2017 · Synced Sep 30, 2026, 10:46 AM EDT
Completed No phase listed Observational

Safety of Sports for Patients With Implantable Cardioverter-Defibrillators

NCT00637754
View directory record Official record
Conditions
Heart Arrhythmias
Interventions
Not listed
Lead sponsor
Yale University
Other
Eligibility
10 Years to 60 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2015
U.S. locations
31
States / cities
Phoenix, Arizona • Tucson, Arizona • Little Rock, Arkansas + 23 more
Source: ClinicalTrials.gov public record
Updated Jun 11, 2015 · Synced Sep 30, 2026, 10:46 AM EDT
Terminated Not applicable Interventional Results available

CONcomitant eValuation of Epicor Left atRial Therapy for AF

NCT00519194
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Epicor LP Cardiac Ablation System, Surgical ablation of permanent AF
Device · Procedure
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years to 80 Years
Enrollment
112 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
15
States / cities
Fresno, California • Bradenton, Florida • Pensacola, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Feb 19, 2019 · Synced Sep 30, 2026, 10:46 AM EDT
Completed Not applicable Interventional

Mapping and Pacing of the His Bundle for Heart Failure Patients With Left Bundle Branch Block

NCT03803995
View directory record Official record
Conditions
Heart Failure, Left Bundle-Branch Block
Interventions
Mapping and Pacing the His Bundle, Placing a guidewire in Coronary sinus for measurement of Q-LV during His Bundle pacing or, if needed, for LV pacing
Procedure
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Oct 2, 2025 · Synced Sep 30, 2026, 10:46 AM EDT
Completed Not applicable Interventional

Cryoballoon vs. Rhythmia Guided Ablation for Recurrent AFib

NCT03811795
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
ECG monitoring with a Kardia Mobile monitor
Other
Lead sponsor
Valley Health System
Other
Eligibility
18 Years to 100 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
3
States / cities
West Des Moines, Iowa • Paramus, New Jersey • Springfield, Oregon
Source: ClinicalTrials.gov public record
Updated Jun 24, 2026 · Synced Sep 30, 2026, 10:46 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

ST-segment Elevation as an AF Endophenotype

NCT01205529
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Procainamide
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
161 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2015
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 2, 2018 · Synced Sep 30, 2026, 10:46 AM EDT