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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Cardiac Rhythm Disorders Clear all
Completed Phase 2Phase 3 Interventional

Placebo Controlled Double-blind Dose Ranging Study of the Efficacy and Safety of SSR149744C 50, 100, 200 or 300 mg OD With Amiodarone as Calibrator for the Maintenance of Sinus Rhythm in Patients With Recent Atrial Fibrillation/Flutter

NCT00233441
View directory record Official record
Conditions
Atrial Fibrillation, Atrial Flutter
Interventions
CELIVARONE (SSR149744C)
Drug
Lead sponsor
Sanofi
Industry
Eligibility
21 Years and older
Enrollment
673 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
1
States / cities
Bridgewater, New Jersey
Source: ClinicalTrials.gov public record
Updated May 7, 2012 · Synced Sep 22, 2026, 10:06 PM EDT
Terminated Not applicable Interventional Results available

Prediction and Maintenance of Sinus Rhythm Among Atrial Fibrillation Patients

NCT04313296
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Unique measurement (AutoSTRAIN) by a commercial software program (TOMTEC-ARENA)
Device
Lead sponsor
Crystal Blake-Parlin
Other
Eligibility
Not listed
Enrollment
209 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Rockport, Maine
Source: ClinicalTrials.gov public record
Updated Aug 13, 2023 · Synced Sep 22, 2026, 10:06 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study to Examine the Effect of HKI-272 on Rhythms of the Heart (Cardiac Repolarization)

NCT00708903
View directory record Official record
Conditions
Breast Cancer
Interventions
neratinib, Placebo, Moxifloxacin
Drug · Other
Lead sponsor
Puma Biotechnology, Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Tacoma, Washington
Source: ClinicalTrials.gov public record
Updated May 13, 2012 · Synced Sep 22, 2026, 10:06 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Fetal and Neonatal Magnetophysiology

NCT01903564
View directory record Official record
Conditions
Fetal Arrhythmia, Abnormality in Fetal Heart Rate or Rhythm, Long QT Syndrome
Interventions
magnetocardiography, postnatal ECG, fetal echocardiography
Device
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 60 Years · Female only
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated May 28, 2019 · Synced Sep 22, 2026, 10:06 PM EDT
Not yet recruiting No phase listed Observational

Assessing the Neurological Outcomes After Atrial Fibrillation Ablation for Rhythm Control

NCT06783868
View directory record Official record
Conditions
Atrial Fibrillation, Stroke
Interventions
Catheter Ablation, Market-approved AVNB, OAC and AAD
Device · Drug
Lead sponsor
Kansas City Heart Rhythm Research Foundation
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
7
States / cities
Overland Park, Kansas • Independence, Missouri • Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 27, 2025 · Synced Sep 22, 2026, 10:06 PM EDT
Completed Not applicable Interventional

Rhythm Control and Potential Early Surgery for Tricuspid Regurgitation

NCT05045079
View directory record Official record
Conditions
Severe Tricuspid Valve Regurgitation (Disorder)
Interventions
Inferior Vena Caval (IVC) Occlusion maneuver
Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 20, 2024 · Synced Sep 22, 2026, 10:06 PM EDT
Completed No phase listed Observational Results available

Patient Preferences for Leadless Pacemakers

NCT05327101
View directory record Official record
Conditions
Cardiac Rhythm Disorder, Bradycardia, Cardiac Pacemaker Artificial
Interventions
Patient Preference Survey
Other
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
117 participants
Timeline
2022 – 2023
U.S. locations
11
States / cities
Scottsdale, Arizona • Jonesboro, Arkansas • Little Rock, Arkansas + 8 more
Source: ClinicalTrials.gov public record
Updated Feb 19, 2025 · Synced Sep 22, 2026, 10:06 PM EDT
Completed Phase 3 Interventional Results available

Rate Control Versus Rhythm Control For Postoperative Atrial Fibrillation

NCT02132767
View directory record Official record
Conditions
Postoperative Atrial Fibrillation
Interventions
Amiodarone, DC-cardioversion, Rate Control
Drug · Procedure
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
523 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
17
States / cities
Los Angeles, California • Atlanta, Georgia • Baltimore, Maryland + 13 more
Source: ClinicalTrials.gov public record
Updated Mar 14, 2019 · Synced Sep 22, 2026, 10:06 PM EDT
Recruiting Not applicable Interventional

Effects of Blocking Blue Light at Night Post CABG, AVR, MVR, CABG AVR, CABG MVR, or SAH

NCT04578249
View directory record Official record
Conditions
Circadian Rhythm Disorders
Interventions
Blue light-blocking goggles, Clear goggles
Other
Lead sponsor
West Virginia University
Other
Eligibility
45 Years to 75 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Morgantown, West Virginia
Source: ClinicalTrials.gov public record
Updated Apr 19, 2026 · Synced Sep 22, 2026, 10:06 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study on the Effect of Etavopivat on Heart Rhythm in Healthy Participants

NCT07023029
View directory record Official record
Conditions
Healthy Volunteers, Sickle Cell Disease, Thalassemia
Interventions
Etavopivat, Moxifloxacin, Placebo
Drug
Lead sponsor
Novo Nordisk A/S
Industry
Eligibility
18 Years to 55 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 1, 2026 · Synced Sep 22, 2026, 10:06 PM EDT
Completed Not applicable Interventional Results available

A Digital Flu Intervention for People With Cardiovascular Conditions

NCT04584645
View directory record Official record
Conditions
Cardiovascular Diseases, Atrial Fibrillation, Abnormal Heart Rhythms, Cardiac Arrest, Heart Attack, Myocardial Infarction, Coronary Heart Disease, Heart Failure, Stroke, Cerebrovascular Accident
Interventions
Targeted digital intervention
Other
Lead sponsor
Evidation Health
Industry
Eligibility
18 Years and older
Enrollment
49,138 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
San Mateo, California
Source: ClinicalTrials.gov public record
Updated Jun 20, 2022 · Synced Sep 22, 2026, 10:06 PM EDT
Terminated No phase listed Observational

Activation Timing and Atrial Fibrillation

NCT02063191
View directory record Official record
Conditions
Arrhythmias, Cardiac, Atrial Fibrillation, Bundle Branch Block
Interventions
Not listed
Lead sponsor
Essentia Health
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
1
States / cities
Duluth, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 3, 2014 · Synced Sep 22, 2026, 10:06 PM EDT
Completed Not applicable Interventional

Radiofrequency Catheter Ablation for Chronic Atrial Fibrillation

NCT00272636
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Radiofrequency catheter ablation, Amiodarone and cardioversion
Procedure · Drug
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 70 Years
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2005
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 2, 2015 · Synced Sep 22, 2026, 10:06 PM EDT
Terminated Phase 2 Interventional

Study Evaluating GAP-486 on Heart Rhythm in Patients With Coronary Artery Disease

NCT00137332
View directory record Official record
Conditions
Arrhythmia
Interventions
GAP-486 (ZP-123), 0.9% Sodium Chloride, USP
Drug
Lead sponsor
Wyeth is now a wholly owned subsidiary of Pfizer
Industry
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
19
States / cities
Sacramento, California • San Francisco, California • Washington D.C., District of Columbia + 15 more
Source: ClinicalTrials.gov public record
Updated Dec 9, 2007 · Synced Sep 22, 2026, 10:06 PM EDT
Terminated Not applicable Interventional

Accuracy of Rhythm Detection by a Wearable Smart Watch for Cardiac Arrhythmias (The WATCH-RHYTHM Study)

NCT04499807
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
AFib detection with wearable smart watch
Other
Lead sponsor
Kansas City Heart Rhythm Research Foundation
Other
Eligibility
18 Years to 80 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Mar 9, 2023 · Synced Sep 22, 2026, 10:06 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Design and Rationale of the Assessment of the MindMics Recording System

NCT05103579
View directory record Official record
Conditions
Atrial Fibrillation, Arrythmia
Interventions
MindMics
Device
Lead sponsor
MindMics Inc
Industry
Eligibility
Not listed
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Sumter, South Carolina
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Sep 22, 2026, 10:06 PM EDT
Completed No phase listed Observational

Risk of Life-threatening Heart Rhythm Disturbances in Siblings

NCT00498524
View directory record Official record
Conditions
Defibrillators, Implantable, Myocardial Infarction, Tachycardias, Ventricular
Interventions
ICD
Device
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
2,047 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 6, 2012 · Synced Sep 22, 2026, 10:06 PM EDT
Completed No phase listed Observational

Conduction Abnormalities With Severe Aortic Stenosis Before and After Transcatheter Aortic Valve Replacement

NCT03180073
View directory record Official record
Conditions
Bradycardia
Interventions
Ziopatch Pre discharge, Ziopatch at Discharge, Ziopatch at 2 months
Diagnostic Test
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years to 90 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 20, 2021 · Synced Sep 22, 2026, 10:06 PM EDT
Completed Not applicable Interventional Results available

The LEADLESS II IDE Study for the Aveir VR Leadless Pacemaker System

NCT04559945
View directory record Official record
Conditions
Cardiac Rhythm Disorder, Bradycardia
Interventions
Aveir VR Leadless Pacemaker System
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
1,276 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
38
States / cities
Birmingham, Alabama • Huntsville, Alabama • Scottsdale, Arizona + 32 more
Source: ClinicalTrials.gov public record
Updated May 19, 2026 · Synced Sep 22, 2026, 10:06 PM EDT
Completed Not applicable Interventional Results available

iPhone Helping Evaluate Atrial Fibrillation Rhythm Through Technology

NCT02731326
View directory record Official record
Conditions
Atrial Fibrillation, Atrial Flutter
Interventions
AliveCor, Behavioral Altering Messaging
Device · Behavioral
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
264 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 2, 2024 · Synced Sep 22, 2026, 10:06 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Heart Rhythm Twins Study

NCT05866731
View directory record Official record
Conditions
Premature Atrial Complex, Premature Ventricular Contraction
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
156 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 8, 2026 · Synced Sep 22, 2026, 10:06 PM EDT
Completed No phase listed Observational

A Study to Determine the Feasibility of Wireless Electrocardiography

NCT02162394
View directory record Official record
Conditions
Atrial Fibrillation, Premature Atrial and Ventricular Beats, Conduction Defects, Normal Sinus Rhythm
Interventions
Observational ambulatory ECG monitoring
Device
Lead sponsor
Peerbridge Health, Inc
Industry
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 24, 2017 · Synced Sep 22, 2026, 10:06 PM EDT
Completed Phase 3 Interventional Results available

Efficacy & Safety of Dronedarone Versus Amiodarone for the Maintenance of Sinus Rhythm in Patients With Atrial Fibrillation

NCT00489736
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
dronedarone (SR33589), amiodarone
Drug
Lead sponsor
Sanofi
Industry
Eligibility
21 Years and older
Enrollment
504 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Bridgewater, New Jersey
Source: ClinicalTrials.gov public record
Updated Feb 17, 2010 · Synced Sep 22, 2026, 10:06 PM EDT
Terminated Phase 3 Interventional Results available

Safety and Efficacy of Vanoxerine for the Conversion of Subjects With Recent Onset Atrial Fibrillation or Flutter to Normal Sinus Rhythm

NCT02454283
View directory record Official record
Conditions
Atrial Fibrillation or Flutter
Interventions
Vanoxerine HCl, Placebo
Drug
Lead sponsor
Laguna Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
4
States / cities
Littleton, Colorado • Washington D.C., District of Columbia • Iowa City, Iowa + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 16, 2016 · Synced Sep 22, 2026, 10:06 PM EDT