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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Atrial Fibrillation and Flutter 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 17, 2026, 4:09 AM EDT
Terminated No phase listed Observational

Markers of Oxidative Stress Present in Left Atrial Appendage Tissue in Patients With Atrial Fibrillation

NCT00243802
View directory record Official record
Conditions
Atrial Fibrillation, Atrial Flutter, Inflammation
Interventions
Not listed
Lead sponsor
Emory University
Other
Eligibility
18 Years to 65 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 26, 2013 · Synced Sep 17, 2026, 4:09 AM EDT
Recruiting No phase listed Observational

Observational Study of Cardiac Arrhythmias During Treatment With BTK Inhibitors or Venetoclax

NCT05724121
View directory record Official record
Conditions
Chronic Lymphocytic Leukemia (CLL), Waldenstr(SqrRoot)(Delta)m s Macroglobulinemia, Mantle Cell Lymphoma, Sudden Cardiac Death, Cardiac Arrhythmias, Hematologic Malignancies
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 110 Years
Enrollment
135 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 6, 2026 · Synced Sep 17, 2026, 4:09 AM EDT
Completed Phase 3 Interventional

Clarification of Optimal Anticoagulation Through Genetics

NCT00839657
View directory record Official record
Conditions
Stroke, Venous Thrombosis, Atrial Fibrillation, Atrial Flutter
Interventions
Genotype-guided dosing algorithm for warfarin, Clinical-guided dosing algorithm for warfarin
Behavioral
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years and older
Enrollment
1,015 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
18
States / cities
Birmingham, Alabama • San Francisco, California • Gainesville, Florida + 15 more
Source: ClinicalTrials.gov public record
Updated Apr 19, 2016 · Synced Sep 17, 2026, 4:09 AM EDT
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 Aug 27, 2026 · Synced Sep 17, 2026, 4:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Apple Heart Study: Assessment of Wristwatch-Based Photoplethysmography to Identify Cardiac Arrhythmias

NCT03335800
View directory record Official record
Conditions
Atrial Fibrillation, Arrhythmias, Cardiac, Atrial Flutter
Interventions
Apple Heart Study App
Device
Lead sponsor
Apple Inc.
Industry
Eligibility
22 Years and older
Enrollment
419,927 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Mar 29, 2020 · Synced Sep 17, 2026, 4:09 AM EDT
Completed No phase listed Observational

Markers of Oxidative Stress Present in Blood in Patients With Atrial Fibrillation

NCT00142194
View directory record Official record
Conditions
Atrial Fibrillation, Inflammation, Atrial Flutter
Interventions
Not listed
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
2
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 26, 2013 · Synced Sep 17, 2026, 4:09 AM EDT
Completed Not applicable Interventional

Confirm Rx™ Versus Reveal LINQ™ - Which is More Reliable in Data Transmission? A Randomized Clinical Study

NCT03720639
View directory record Official record
Conditions
Cardiac Arrythmias, Syncope, Atrial Fibrillation, Atrial Flutter, Tachycardia, Stroke
Interventions
Abbott, Inc Confirm Rx™ versus Medtronic, Inc Reveal LINQTM
Device
Lead sponsor
Sparrow Clinical Research Institute
Other
Eligibility
18 Years and older
Enrollment
209 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
2
States / cities
Lansing, Michigan • Traverse City, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 9, 2020 · Synced Sep 17, 2026, 4:09 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 17, 2026, 4:09 AM EDT
Completed No phase listed Observational Results available

FREEZE-AFIB Post-Market Study

NCT05089877
View directory record Official record
Conditions
Atrial Fibrillation, Atrial Flutter
Interventions
Surgical Ablation
Device
Lead sponsor
AtriCure, Inc.
Industry
Eligibility
18 Years to 99 Years
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
6
States / cities
Hartford, Connecticut • New Haven, Connecticut • Evanston, Illinois + 3 more
Source: ClinicalTrials.gov public record
Updated Jan 12, 2025 · Synced Sep 17, 2026, 4:09 AM EDT
Not listed Phase 2Phase 3 Interventional

Comparison of ATI-5923, a Novel Vitamin K Antagonist, With Warfarin in Patients Requiring Chronic Anticoagulation

NCT00691470
View directory record Official record
Conditions
Atrial Fibrillation, Atrial Flutter, Venous Thromboembolic Disease, Myocardial Infarction, Cardiomyopathy
Interventions
ATI-5923, Coumadin (warfarin)
Drug
Lead sponsor
ARYx Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
41
States / cities
Birmingham, Alabama • Huntsville, Alabama • Mobile, Alabama + 34 more
Source: ClinicalTrials.gov public record
Updated Feb 1, 2010 · Synced Sep 17, 2026, 4:09 AM EDT
Completed Phase 3 Interventional

Ablation of Perimitral Flutter Following Catheter Ablation of Atrial Fibrillation: Impact on Outcomes

NCT01173796
View directory record Official record
Conditions
Atrial Fibrillation, Perimitral Flutter
Interventions
catheter ablation
Procedure
Lead sponsor
Texas Cardiac Arrhythmia Research Foundation
Other
Eligibility
18 Years to 75 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jul 10, 2012 · Synced Sep 17, 2026, 4:09 AM EDT
Completed Phase 3 Interventional

Intravenous Tedisamil in the Rapid Conversion of Atrial Fibrillation or Flutter to Normal Sinus Rhythm in Male Subjects

NCT00126061
View directory record Official record
Conditions
Atrial Fibrillation, Atrial Flutter
Interventions
Tedisamil sesquifumarate
Drug
Lead sponsor
Solvay Pharmaceuticals
Industry
Eligibility
18 Years and older · Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
4
States / cities
Los Angeles, California • Santa Ana, California • Honolulu, Hawaii + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 15, 2015 · Synced Sep 17, 2026, 4:09 AM EDT
Completed Not applicable Interventional

Engaging Patients to Help Achieve Increased Patient Choice and Engagement for AFib Stroke Prevention

NCT04096781
View directory record Official record
Conditions
Atrial Fibrillation, Atrial Flutter, Stroke, Cardiac, Heart Failure, Arrhythmia
Interventions
SDMT, Usual Care
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
1,001 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
5
States / cities
Palo Alto, California • New Orleans, Louisiana • Camden, New Jersey + 2 more
Source: ClinicalTrials.gov public record
Updated Apr 4, 2024 · Synced Sep 17, 2026, 4:09 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

HeartBeam ECG Registry

NCT07501299
View directory record Official record
Conditions
Atrial Fibrillation, Atrial Flutter, Bradycardia, Tachycardia, Arrhythmia
Interventions
Electrocardiogram (ECG)
Diagnostic Test
Lead sponsor
HeartBeam, Inc.
Industry
Eligibility
18 Years and older
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 19, 2026 · Synced Sep 17, 2026, 4:09 AM EDT
Completed No phase listed Observational

Stanford Cardiac Invasive Electrophysiology Novel Computer Experience

NCT03549806
View directory record Official record
Conditions
Atrial Fibrillation, Atrial Tachycardia, Atrial Flutter, Arrhythmias, Cardiac
Interventions
No Intervention. Test is computer algorithm.
Diagnostic Test
Lead sponsor
Stanford University
Other
Eligibility
21 Years to 80 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Dec 1, 2024 · Synced Sep 17, 2026, 4:09 AM EDT
Completed Phase 4 Interventional Results available

Effect of Oral and Intravenous Diltiazem Protocol for Emergency Department Atrial Fibrillation

NCT05391893
View directory record Official record
Conditions
Atrial Fibrillation, Atrial Flutter
Interventions
Oral, Intravenous drug
Drug
Lead sponsor
Corewell Health South
Other
Eligibility
18 Years and older
Enrollment
444 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Saint Joseph, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 26, 2024 · Synced Sep 17, 2026, 4:09 AM EDT
Completed Phase 3 Interventional

Impact Of Different Ablation Approaches on Outcome In Coexistent Atrial Fibrillation and Flutter

NCT01439386
View directory record Official record
Conditions
Atrial Arrhythmia, Quality of Life
Interventions
Catheter ablation
Procedure
Lead sponsor
Texas Cardiac Arrhythmia Research Foundation
Other
Eligibility
18 Years to 75 Years
Enrollment
86 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Oct 18, 2017 · Synced Sep 17, 2026, 4:09 AM EDT
Completed No phase listed Observational

Long Term Arrhythmia Risk and Cardiovascular Events in Hematopoietic Stem Cell Transplant

NCT04118530
View directory record Official record
Conditions
Hematopoietic Stem Cell Transplant, Atrial Fibrillation, Atrial Flutter
Interventions
HSCT Patients
Other
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 9, 2024 · Synced Sep 17, 2026, 4:09 AM EDT
Completed Phase 3 Interventional

Intravenous Tedisamil in the Rapid Conversion of Atrial Fibrillation or Flutter to Normal Sinus Rhythm in Female Subjects

NCT00126022
View directory record Official record
Conditions
Atrial Fibrillation, Atrial Flutter
Interventions
Tedisamil sesquifumarate
Drug
Lead sponsor
Solvay Pharmaceuticals
Industry
Eligibility
18 Years and older · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
1
States / cities
Tullahoma, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 15, 2015 · Synced Sep 17, 2026, 4:09 AM EDT
Terminated Phase 4 Interventional

Randomized Trial Comparing Diltiazem and Metoprolol For Atrial Fibrillation Rate Control

NCT02025465
View directory record Official record
Conditions
Atrial Fibrillation, Atrial Flutter
Interventions
Metoprolol, Diltiazem
Drug
Lead sponsor
CAMC Health System
Other
Eligibility
18 Years and older
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2024
U.S. locations
1
States / cities
Charleston, West Virginia
Source: ClinicalTrials.gov public record
Updated Sep 9, 2026 · Synced Sep 17, 2026, 4:09 AM EDT
Completed Phase 4 Interventional Results available

Use of Dabigatran Etexilate to Prevent Stroke and Thromboembolism

NCT01976507
View directory record Official record
Conditions
Atrial Fibrillation, Atrial Flutter
Interventions
dabigatran etexilate mesylate
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 85 Years
Enrollment
101 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 11, 2017 · Synced Sep 17, 2026, 4:09 AM EDT
Completed No phase listed Observational

A Retrospective Analysis of the Use of ACE-inhibitors and Angiotensin Receptor Blockers

NCT00321945
View directory record Official record
Conditions
Atrial Fibrillation, Atrial Flutter
Interventions
ACE-Inhibitors and Angiotensin Receptor Blockers
Procedure
Lead sponsor
Emory University
Other
Eligibility
18 Years to 65 Years
Enrollment
546 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
3
States / cities
Atlanta, Georgia • Decatur, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 26, 2013 · Synced Sep 17, 2026, 4:09 AM EDT
Completed Not applicable Interventional Results available

Suture Closure AFtEr VEIN Access for Cardiac Procedures (SAFE-VEIN) Trial

NCT04632641
View directory record Official record
Conditions
Atrial Fibrillation, Atrial Flutter, Heart Block, Pulmonary Embolism and Thrombosis, Mitral Valve Repair, Sinus Node Dysfunction, Bradycardia, Brady-tachy Syndrome
Interventions
Perclose ProGlide Suture-Mediated Closure System (SMC) - LARGE-BORE PROCEDURES, Figure 8 Suture - LARGE-BORE PROCEDURES
Device · Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
107 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 2, 2024 · Synced Sep 17, 2026, 4:09 AM EDT