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ClinicalTrials.gov public records Last synced Oct 21, 2026, 10:39 PM EDT

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Showing 1–24 of 67 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Cardioversion Clear all
Terminated Not applicable Interventional Results available

Combined Amiodarone and Electrical Cardioversion for Postoperative Atrial Fibrillation After Cardiac Surgery

NCT01558128
View directory record Official record
Conditions
Cardiac Disease
Interventions
Amiodarone, Cardioversion
Drug · Procedure
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 100 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 23, 2017 · Synced Oct 21, 2026, 10:39 PM EDT
Active, not recruiting Not applicable Interventional

Repeat Ablation of Persistent Atrial Fibrillation, Including Mitral Isthmus Catheter Ablation, With the FARAPULSE Pulsed Field Ablation System

NCT06735534
View directory record Official record
Conditions
Persistent Atrial Fibrillation
Interventions
FARAPULSE™ Pulsed Field Ablation System
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
376 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
33
States / cities
Mobile, Alabama • Jonesboro, Arkansas • Los Angeles, California + 29 more
Source: ClinicalTrials.gov public record
Updated Sep 24, 2026 · Synced Oct 21, 2026, 10:39 PM EDT
Terminated Phase 2 Interventional Results available

The Use of Ranolazine for Atrial Fibrillation and Diastolic Heart Failure

NCT01887353
View directory record Official record
Conditions
Atrial Fibrillation, Heart Failure
Interventions
Ranolazine, Placebo
Drug
Lead sponsor
Intermountain Health Care, Inc.
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Murray, Utah
Source: ClinicalTrials.gov public record
Updated Jul 20, 2015 · Synced Oct 21, 2026, 10:39 PM EDT
Completed No phase listed Observational

Inflammation as a Predictor in Cardioversion of Atrial Fibrillation

NCT00590525
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Cardioversion
Procedure
Lead sponsor
Creighton University
Other
Eligibility
19 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2009
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Dec 1, 2009 · Synced Oct 21, 2026, 10:39 PM 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, 10:39 PM EDT
Terminated Early Phase 1 Interventional

Dual Versus Single Shock for Cardioversion of Atrial Fibrillation

NCT03943693
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Double shock, Single shock
Device
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 80 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Apr 7, 2026 · Synced Oct 21, 2026, 10:39 PM 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, 10:39 PM EDT
Completed No phase listed Observational Results available

Longitudinal Surveillance Study of the 4-SITE Lead/Header System

NCT01596595
View directory record Official record
Conditions
Primary Prevention of Sudden Cardiac Arrest, Secondary Prevention of Sudden Cardiac Arrest
Interventions
Not listed
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
Not listed
Enrollment
1,820 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2020
U.S. locations
104
States / cities
Anchorage, Alaska • Glendale, Arizona • Mesa, Arizona + 94 more
Source: ClinicalTrials.gov public record
Updated Mar 19, 2021 · Synced Oct 21, 2026, 10:39 PM EDT
Completed Not applicable Interventional

SmartCPR Trial: An Analysis of a Waveform-Based Automated External Defibrillation (AED) Algorithm on Survival From Out-of-Hospital Ventricular Fibrillation

NCT00535106
View directory record Official record
Conditions
Ventricular Fibrillation, Cardiac Arrest
Interventions
Automated external defibrillator (Philips FR2+ AED), SmartCPR, Delayed defibrillation
Device · Other
Lead sponsor
New York City Fire Department
Government
Eligibility
Not listed
Enrollment
900 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 19, 2009 · Synced Oct 21, 2026, 10:39 PM EDT
Enrolling by invitation No phase listed Observational

Lead Evaluation for Defibrillation and Reliability Post Approval Study

NCT07005232
View directory record Official record
Conditions
Tachyarrhythmia
Interventions
defibrillation lead
Device
Lead sponsor
Medtronic
Industry
Eligibility
Not listed
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2032
U.S. locations
52
States / cities
Birmingham, Alabama • Stanford, California • Torrance, California + 45 more
Source: ClinicalTrials.gov public record
Updated Aug 3, 2026 · Synced Oct 21, 2026, 10:39 PM EDT
Terminated Phase 2 Interventional Results available

A Study to Evaluate the Efficacy, Safety, Tolerability, and Pharmacokinetics of HSY244 in Participants With Atrial Fibrillation

NCT04582409
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
HSY244, Placebo
Drug · Other
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 80 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
2
States / cities
Boston, Massachusetts • Lansing, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 20, 2024 · Synced Oct 21, 2026, 10:39 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Comparison of 50% Tilt and Tuned Waveforms in Single-Coil Active Can Configuration

NCT00874445
View directory record Official record
Conditions
Sudden Cardiac Death
Interventions
ICD/ CRT-D
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
77 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Feb 4, 2019 · Synced Oct 21, 2026, 10:39 PM EDT
Not listed No phase listed Observational

Atrial Fibrillation Detection Using Garmin Wearable Technology

NCT03566836
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Garmin Smart Watch, Garmin Chest Band
Device
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Sep 4, 2019 · Synced Oct 21, 2026, 10:39 PM EDT
Completed No phase listed Observational

Myocardial Injury in Patients With Cardiac Implantable Electronic Devices Undergoing Defibrillation Threshold Testing

NCT04284800
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Oct 21, 2026, 10:39 PM EDT
Not listed No phase listed Observational

Anticoagulant and Antiarrhythmic Management Based on Continuous Rhythm Monitoring

NCT04038944
View directory record Official record
Conditions
New Onset Atrial Fibrillation
Interventions
Not listed
Lead sponsor
St. Francis Hospital, New York
Other
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
2
States / cities
Roslyn, New York
Source: ClinicalTrials.gov public record
Updated Jul 31, 2019 · Synced Oct 21, 2026, 10:39 PM EDT
Completed Phase 1Phase 2 Interventional

Intra-Cardiac Echocardiography Guided Cardioversion(ICE-CHIP) Study

NCT00281073
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Intra-Cardiac Echocardiography guided Cardioversion, Intracardiac Echo, ICE
Device
Lead sponsor
EP MedSystems
Industry
Eligibility
18 Years and older
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
5
States / cities
Jacksonville, Florida • Chicago, Illinois • Urbana, Illinois + 2 more
Source: ClinicalTrials.gov public record
Updated May 11, 2011 · Synced Oct 21, 2026, 10:39 PM EDT
Not listed Phase 4 Interventional

Study of Defibrillation Testing In Patients Undergoing Initial ICD Implantation

NCT01905007
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jul 22, 2013 · Synced Oct 21, 2026, 10:39 PM EDT
Completed Not applicable Interventional Results available

Intravenous Magnesium Infusion in Patients Undergoing Cardioversion of Atrial Fibrillation Trial

NCT01597557
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Magnesium Sulfate, Placebo
Drug · Other
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
18 Years and older
Enrollment
261 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Oct 22, 2020 · Synced Oct 21, 2026, 10:39 PM EDT
Completed Not applicable Interventional Results available

Vest Prevention of Early Sudden Death Trial and VEST Registry

NCT01446965
View directory record Official record
Conditions
Myocardial Infarction, Ventricular Dysfunction, Sudden Death, Ventricular Tachycardia, Ventricular Fibrillation
Interventions
wearable defibrillator
Device
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
2,348 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2019
U.S. locations
57
States / cities
Anchorage, Alaska • Fresno, California • Salinas, California + 47 more
Source: ClinicalTrials.gov public record
Updated Jan 20, 2021 · Synced Oct 21, 2026, 10:39 PM EDT
Completed Phase 3 Interventional Results available

Edoxaban vs. Warfarin in Subjects Undergoing Cardioversion of Nonvalvular Atrial Fibrillation (NVAF)

NCT02072434
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Edoxaban, Warfarin, Enoxaparin
Drug
Lead sponsor
Daiichi Sankyo
Industry
Eligibility
18 Years and older
Enrollment
2,199 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
28
States / cities
Phoenix, Arizona • Escondido, California • Newport Beach, California + 25 more
Source: ClinicalTrials.gov public record
Updated Mar 15, 2019 · Synced Oct 21, 2026, 10:39 PM EDT
Completed Not applicable Interventional Results available

Evaluation of ACUITY™ X4 Quadripolar Coronary Venous Leads and RELIANCE™ 4-FRONT Defibrillation Leads

NCT02071173
View directory record Official record
Conditions
Cardiac Resynchronization Therapy
Interventions
ACUITY X4 quadripolar coronary venous lead and RELIANCE 4-FRONT defibrillation lead
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
2,244 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
96
States / cities
Birmingham, Alabama • Huntsville, Alabama • Anchorage, Alaska + 85 more
Source: ClinicalTrials.gov public record
Updated Jan 7, 2021 · Synced Oct 21, 2026, 10:39 PM EDT
Recruiting Not applicable Interventional

Advancing Clinical Heart Failure Outcomes Leveraging Defibrillation Lead Implant System for Left Bundle Branch Area Pacing

NCT07526896
View directory record Official record
Conditions
Heart Failure, Systolic Bundle Branch Block, Left
Interventions
LBBAP Therapy, LOT-CRT, ICD
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 20, 2026 · Synced Oct 21, 2026, 10:39 PM EDT
Completed Not applicable Interventional

Lead EvaluAtion for Defibrillation and Reliability (LEADR) / Lead Evaluation for Defibrillation and Reliability in Left Bundle Branch Area Pacing (LEADR LBBAP)

NCT04863664
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Dec 9, 2025 · Synced Oct 21, 2026, 10:39 PM EDT
Recruiting Not applicable Interventional

Parasternal Extravascular ICD System Pivotal Clinical Investigation (ALARION EV) Study

NCT07324031
View directory record Official record
Conditions
Ventricular Arrythmia, Ventricular Fibrillation, Ventricular Tachycardia
Interventions
Atala™ lead and EV-ICD Pulse Generator
Device
Lead sponsor
AtaCor Medical, Inc.
Industry
Eligibility
18 Years and older
Enrollment
280 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
27
States / cities
Scottsdale, Arizona • Jonesboro, Arkansas • La Jolla, California + 23 more
Source: ClinicalTrials.gov public record
Updated Oct 9, 2026 · Synced Oct 21, 2026, 10:39 PM EDT