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Showing 1–24 of 65 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Cardioversion Clear all
Completed Not applicable Interventional

Acute Study to Collect Electrical Signals From the Heart Using a Special Lead

NCT02772380
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jun 18, 2018 · Synced Sep 4, 2026, 9:05 AM EDT
Completed Phase 2 Interventional

Double Blind Placebo COntrolled Dose Ranging studY of the eFficacy and safEty of SSR149744c 300 or 600 mg for the Conversion of Atrial Fibrillation / fluttEr

NCT00232310
View directory record Official record
Conditions
Atrial Fibrillation, Atrial Flutter
Interventions
CELIVARONE (SSR149744C)
Drug
Lead sponsor
Sanofi
Industry
Eligibility
21 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
1
States / cities
Bridgewater, New Jersey
Source: ClinicalTrials.gov public record
Updated May 7, 2012 · Synced Sep 4, 2026, 9:05 AM EDT
Completed Phase 4 Interventional

Transthoracic Incremental Monophasic Versus Biphasic by Emergency Responders (TIMBER)

NCT00101881
View directory record Official record
Conditions
Cardiac Arrest
Interventions
Defibrillation (biphasic versus monophasic shock)
Device
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
168 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2005
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Oct 1, 2008 · Synced Sep 4, 2026, 9:05 AM EDT
Completed Not applicable Interventional

Time to Defibrillation Using Automated External Defibrillators by Pediatric Residents in Simulated Cardiac Arrests

NCT00640354
View directory record Official record
Conditions
Pediatric Residents
Interventions
Automated external defibrillator, Manual defibrillator
Device
Lead sponsor
Baylor College of Medicine
Other
Eligibility
Not listed
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Nov 11, 2020 · Synced Sep 4, 2026, 9:05 AM EDT
Terminated Phase 4 Interventional

The Use of DIOVAN to Reduce Post-Cardioversion Recurrence of Atrial Fibrillation Trial (the DRAFT Trial)

NCT00343499
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
valsartan
Drug
Lead sponsor
Intermountain Health Care, Inc.
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
3
States / cities
Ogden, Utah • Salt Lake City, Utah • St. George, Utah
Source: ClinicalTrials.gov public record
Updated Aug 20, 2008 · Synced Sep 4, 2026, 9:05 AM 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 15, 2026 · Synced Sep 4, 2026, 9:05 AM 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 19, 2015 · Synced Sep 4, 2026, 9:05 AM EDT
Active, not recruiting Phase 2 Interventional

A Study of IV HBI-3000 for the Conversion Recent Onset Atrial Fibrillation (AF)

NCT04680026
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
HBI-3000, Placebo
Drug
Lead sponsor
HUYABIO International, LLC.
Industry
Eligibility
18 Years to 80 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
4
States / cities
Naples, Florida • Springfield, Illinois • Tupelo, Mississippi + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced Sep 4, 2026, 9:05 AM EDT
Completed Phase 1 Interventional Results available

Automatic External Defibrillation Monitoring in Cardiac Arrest

NCT00382928
View directory record Official record
Conditions
Death, Sudden, Cardiac, Ventricular Fibrillation, Tachycardia, Ventricular
Interventions
Defibrillation of pulseless VT/VF by AECD
Device
Lead sponsor
Foundation for Atlanta Veterans Education and Research, Inc.
Other
Eligibility
18 Years and older
Enrollment
192 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Decatur, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 14, 2015 · Synced Sep 4, 2026, 9:05 AM EDT
Not listed Not applicable Interventional

Single vs. Dual-DCCV in Obese Patients

NCT04539158
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Direct Current Cardioversion
Device
Lead sponsor
Dr. Daniel P Morin, MD MPH FHRS
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
3
States / cities
Gretna, Louisiana • New Orleans, Louisiana • Shreveport, Louisiana
Source: ClinicalTrials.gov public record
Updated Mar 29, 2023 · Synced Sep 4, 2026, 9:05 AM EDT
Completed Not applicable Interventional Results available

The Effect of an Azygos Vein Coil on Defibrillation Threshold

NCT00798174
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Sep 27, 2018 · Synced Sep 4, 2026, 9:05 AM EDT
Completed No phase listed Observational

Myocardial Injury Following Elective Direct Current Cardioversion for Atrial Arrhythmias

NCT04151966
View directory record Official record
Conditions
Cardioversion
Interventions
Blood sample collection
Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
104 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 4, 2022 · Synced Sep 4, 2026, 9:05 AM EDT
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 22, 2017 · Synced Sep 4, 2026, 9:05 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 4, 2019 · Synced Sep 4, 2026, 9:05 AM EDT
Completed Not applicable Interventional Results available

Clinical Trial Comparing Devices Used for Cardioversion of Atrial Fibrillation

NCT05992623
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Zoll external defibrillator, Lifepak external defibrillator
Device
Lead sponsor
Inova Health Care Services
Other
Eligibility
18 Years and older
Enrollment
546 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Falls Church, Virginia
Source: ClinicalTrials.gov public record
Updated Sep 21, 2025 · Synced Sep 4, 2026, 9:05 AM 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 6, 2021 · Synced Sep 4, 2026, 9:05 AM EDT
Completed Not applicable Interventional Results available

Evaluating Myocardial Injury for Defibrillation Threshold Testing Methods for ICD Implantation

NCT02111993
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated May 21, 2019 · Synced Sep 4, 2026, 9:05 AM EDT
Completed Phase 4 Interventional Results available

POWER (Pulse Width Optimized Waveform Evaluation Trial)

NCT00311181
View directory record Official record
Conditions
Sudden Cardiac Death
Interventions
Implantable Cardioverter Defibrillator (ICD), Cardiac Resynchronization Therapy (CRT-D)
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
217 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
2
States / cities
Birmingham, Alabama • Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Feb 19, 2019 · Synced Sep 4, 2026, 9:05 AM EDT
Completed No phase listed Observational Results available

Precise Measurement of Pediatric Defibrillation Thresholds

NCT01043562
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Feb 4, 2018 · Synced Sep 4, 2026, 9:05 AM EDT
Withdrawn Not applicable Interventional

The Effect of Atrial Fibrillation Hemodynamics on Regulation of Cerebral Blood Flow

NCT00745602
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jan 8, 2019 · Synced Sep 4, 2026, 9:05 AM 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 Sep 2, 2026 · Synced Sep 4, 2026, 9:05 AM 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 19, 2021 · Synced Sep 4, 2026, 9:05 AM EDT
Not listed Phase 4 Interventional

Rapid Atrial Fibrillation Treatment Strategy

NCT04092621
View directory record Official record
Conditions
New Onset Atrial Fibrillation, Sepsis, Respiratory Failure
Interventions
Amiodarone in Parenteral Dosage Form, Amiodarone Pill, Direct Current Cardioversion (DCC), Rate-control therapy
Drug · Procedure
Lead sponsor
Our Lady of the Lake Hospital
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Sep 16, 2019 · Synced Sep 4, 2026, 9:05 AM EDT
Completed Phase 3 Interventional Results available

Explore the Efficacy and Safety of Once-daily Oral Rivaroxaban for the Prevention of Cardiovascular Events in Subjects With Nonvalvular Atrial Fibrillation Scheduled for Cardioversion

NCT01674647
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Rivaroxaban (Xarelto, BAY59-7939), Vitamin K antagonist (VKA)
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older
Enrollment
1,504 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
66
States / cities
Mobile, Alabama • Scottsdale, Arizona • East Palo Alto, California + 58 more
Source: ClinicalTrials.gov public record
Updated Apr 29, 2015 · Synced Sep 4, 2026, 9:05 AM EDT