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ClinicalTrials.gov public records Last synced Oct 1, 2026, 2:27 PM EDT

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Showing 25–48 of 57 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Tachycardia Atrial Clear all
Completed No phase listed Observational

The Signal-averaged ElectrocArdiogram in Long Term Follow-up of Chronic CHagas Disease - RIO de Janeiro Cohort

NCT01340963
View directory record Official record
Conditions
Chagas Cardiomyopathy, Cardiac Arrhythmia, Stroke, Left Ventricular Function Systolic Dysfunction, Cardiac Death
Interventions
Not listed
Lead sponsor
Universidade Gama Filho
Other
Eligibility
18 Years to 75 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1995 – 2012
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 10, 2013 · Synced Oct 1, 2026, 2:27 PM EDT
Completed Not applicable Interventional Results available

Study of New Implantable Loop Recorder

NCT00746564
View directory record Official record
Conditions
Tachyarrhythmias, Syncope
Interventions
SJM Confirm
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
9
States / cities
Anchorage, Alaska • Scottsdale, Arizona • Little Rock, Arkansas + 6 more
Source: ClinicalTrials.gov public record
Updated Jan 30, 2019 · Synced Oct 1, 2026, 2:27 PM EDT
Completed Not applicable Interventional Results available

Introductory Clinical Trial for Measuring Patients Before, During, and After an Electrophysiology (EP) Procedure With a Novel, Body-Worn Sensor

NCT03657134
View directory record Official record
Conditions
Atrial Fibrillation, Ventricular Tachycardia
Interventions
CoVa-2 Monitoring System
Diagnostic Test
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 22, 2021 · Synced Oct 1, 2026, 2:27 PM EDT
Completed No phase listed Observational

OptiSense™ Performance in Detecting Atrial Episodes

NCT00870324
View directory record Official record
Conditions
Tachyarrhythmias, Atrial Fibrillation
Interventions
OptiSense Lead, Tendril Lead
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
2
States / cities
Akron, Ohio • Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 4, 2019 · Synced Oct 1, 2026, 2:27 PM EDT
Completed Phase 3 Interventional

Concomitant Treatment of Permanent Atrial Fibrillation

NCT00566787
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Surgical bipolar radiofrequency ablation using the AtriCure Bipolar System
Device
Lead sponsor
AtriCure, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
10
States / cities
Indianapolis, Indiana • Ann Arbor, Michigan • Grand Rapids, Michigan + 7 more
Source: ClinicalTrials.gov public record
Updated Jan 25, 2012 · Synced Oct 1, 2026, 2:27 PM EDT
Completed No phase listed Observational

Propagation ANalysis for Arrhythmogenic Conduction Elimination to Prevent Atrial Flutter and Fibrillation (PANACEA-AF)

NCT03737838
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Atrial fibrillation ablation
Device
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 7, 2024 · Synced Oct 1, 2026, 2:27 PM EDT
Completed Not applicable Interventional

Accuracy of the Apple Watch Series 4 for Detection of Heart Rhythm: A Pilot Study

NCT03798613
View directory record Official record
Conditions
Heart Rate Fast, Heart Rate Low
Interventions
Apple Watch 4 Series Device, Continuous Telemetry Monitor
Device
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 9, 2019 · Synced Oct 1, 2026, 2:27 PM EDT
Completed No phase listed Observational

Electrocardiographic Diagnostic Performance of the Apple Watch Augmented With an Artificial Intelligence Algorithm

NCT05167058
View directory record Official record
Conditions
Atrial Fibrillation, Tachycardia, Bradycardia, Premature Supraventricular Beat, Premature Ventricular Contraction
Interventions
Cardiologs Platform
Device
Lead sponsor
Cardiologs Technologies
Industry
Eligibility
18 Years and older
Enrollment
220 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
3
States / cities
Hackensack, New Jersey • Ridgewood, New Jersey • New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 3, 2023 · Synced Oct 1, 2026, 2:27 PM EDT
Terminated No phase listed Observational

SHERLOCK 3CG™ Diamond Tip Confirmation System

NCT03288766
View directory record Official record
Conditions
Indication for Peripheral Intravenous Catheterization, Atrial Flutter, Premature Atrial Contraction, Premature Ventricular Contraction, Premature Junctional Contraction, Tachycardia, Atrioventricular Block, Bundle-Branch Block
Interventions
PICC placement with SHERLOCK 3CG™ Diamond TCS with MODUS II software
Procedure
Lead sponsor
C. R. Bard
Industry
Eligibility
21 Years and older
Enrollment
232 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
6
States / cities
Las Vegas, Nevada • Greensboro, North Carolina • Greenville, North Carolina + 3 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2021 · Synced Oct 1, 2026, 2:27 PM EDT
Recruiting No phase listed Observational

Baseline Atrial Fibrosis Predicts Risk for Post-operative Atrial Fibrillation in Patients Undergoing Cardiac Surgery

NCT05014802
View directory record Official record
Conditions
Atrial Fibrillation, Atrial Arrhythmia, Atrial Flutter, Atrial Tachycardia
Interventions
Not listed
Lead sponsor
Tulane University
Other
Eligibility
40 Years to 120 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
3
States / cities
Covington, Louisiana • New Orleans, Louisiana • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 15, 2026 · Synced Oct 1, 2026, 2:27 PM EDT
Not listed Phase 4 Interventional

Safety of Amiodarone and Ranolazine Together in Patients With Angina

NCT01558830
View directory record Official record
Conditions
Chronic Stable Angina, Coronary Artery Disease, Atrial Fibrillation, Ventricular Tachycardia
Interventions
ranolazine, placebo
Drug
Lead sponsor
Cardiovascular Consultants of Nevada
Other
Eligibility
35 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
3
States / cities
Henderson, Nevada • Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Mar 21, 2012 · Synced Oct 1, 2026, 2:27 PM EDT
Terminated Phase 3 Interventional Results available

A Study to Learn How Well the Study Treatment Asundexian Works and How Safe it is Compared to Apixaban to Prevent Stroke or Systemic Embolism in People With Irregular and Often Rapid Heartbeat (Atrial Fibrillation), and at Risk for Stroke

NCT05643573
View directory record Official record
Conditions
Prevention of Stroke or Systemic Embolism, Atrial Fibrillation
Interventions
Asundexian (BAY2433334), Apixaban, Asundexian matching placebo, Apixaban matching placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older
Enrollment
14,830 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
163
States / cities
Dothan, Alabama • Fairhope, Alabama • Mobile, Alabama + 144 more
Source: ClinicalTrials.gov public record
Updated Dec 9, 2024 · Synced Oct 1, 2026, 2:27 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Biospecimen Repository for Cardiac Arrhythmias at the Cleveland Clinic

NCT00921986
View directory record Official record
Conditions
Arrhythmias, Cardiac
Interventions
Not listed
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2035
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 14, 2026 · Synced Oct 1, 2026, 2:27 PM EDT
Completed No phase listed Observational

Prospective Observational Cohort Study of Fetal Atrial Flutter & Supraventricular Tachycardia

NCT03376438
View directory record Official record
Conditions
Atrial Flutter, Tachycardia, Supraventricular, Tachycardia, Atrial Ectopic, Tachycardia, Reciprocating, Tachycardia Atrial, Tachycardia, Atrioventricular Nodal Reentry, Tachycardia, Paroxysmal, Fetal Hydrops
Interventions
Prospective observational cohorts
Other
Lead sponsor
Edgar Jaeggi
Other
Eligibility
16 Years to 50 Years · Female only
Enrollment
330 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2025
U.S. locations
18
States / cities
Phoenix, Arizona • San Francisco, California • Denver, Colorado + 15 more
Source: ClinicalTrials.gov public record
Updated May 31, 2025 · Synced Oct 1, 2026, 2:27 PM EDT
Completed Not applicable Interventional Results available

Randomized Study of the Use of Warfarin During Pacemaker or ICD Implantation in Patients Requiring Long Term Anticoagulation

NCT00721136
View directory record Official record
Conditions
Bradycardia, Tachycardia, Atrial Fibrillation, Valvular Heart Disease
Interventions
continue warfarin through the procedure, Hold warfarin, Warfarin held with heparin transition.
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 99 Years
Enrollment
104 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
2
States / cities
Baltimore, Maryland • Columbia, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 31, 2017 · Synced Oct 1, 2026, 2:27 PM EDT
Completed No phase listed Observational

Extended ECG Monitoring in HCM Patients

NCT04056715
View directory record Official record
Conditions
Hypertrophic Cardiomyopathy, Nonsustained Ventricular Tachycardia, Ventricular Tachycardia, Atrial Fibrillation, Arrhythmia
Interventions
Zio XT
Device
Lead sponsor
iRhythm Technologies, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 1, 2023 · Synced Oct 1, 2026, 2:27 PM EDT
Active, not recruiting No phase listed Observational

Abbott Atrial Fibrillation Post Approval Study

NCT05434650
View directory record Official record
Conditions
Atrial Arrhythmia, Atrium; Fibrillation, Atrial Tachycardia
Interventions
electrophysiology study and ablation with an Abbott Ablation Catheter
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
Not listed
Enrollment
200 participants
Timeline
2022 – 2026
U.S. locations
20
States / cities
Huntsville, Alabama • Little Rock, Arkansas • Rancho Mirage, California + 16 more
Source: ClinicalTrials.gov public record
Updated Nov 19, 2025 · Synced Oct 1, 2026, 2:27 PM EDT
Recruiting Phase 3 Interventional

Comparing Magnesium 2g Versus 4g Versus Placebo in the Incidence of Treating AFF RVR

NCT06376916
View directory record Official record
Conditions
Tachycardia Atrial, Atrial Fibrillation, Atrial Flutter With Rapid Ventricular Response
Interventions
Magnesium Sulfate 2 G, Magnesium Sulfate 4 G, Saline
Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
153 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Oak Lawn, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 28, 2026 · Synced Oct 1, 2026, 2:27 PM EDT
Completed Not applicable Interventional Results available

CONNECT Study - Clinical Evaluation Of Remote NotificatioN to rEduCe Time to Clinical Decision

NCT00402246
View directory record Official record
Conditions
Arrhythmia, Tachycardia, Atrial Fibrillation, Ventricular Fibrillation
Interventions
Remote Management, In-Office Care
Other
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
2,009 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
127
States / cities
Mobile, Alabama • Mesa, Arizona • Scottsdale, Arizona + 124 more
Source: ClinicalTrials.gov public record
Updated Feb 25, 2011 · Synced Oct 1, 2026, 2:27 PM EDT
Not listed Phase 2 Interventional

Sole-Therapy Treatment of Atrial Fibrillation

NCT00566176
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Surgical Ablation using the AtriCure Bipolar System
Device
Lead sponsor
AtriCure, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2017
U.S. locations
5
States / cities
Tampa, Florida • Cincinnati, Ohio • Oklahoma City, Oklahoma + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 5, 2013 · Synced Oct 1, 2026, 2:27 PM EDT
Withdrawn Not applicable Interventional

Yoga and Rate and Duration of Inappropriate Sinus Tachycardia (IST) Episodes

NCT01695538
View directory record Official record
Conditions
Inappropriate Sinus Tachycardia
Interventions
Yoga
Other
Lead sponsor
Dhanunjaya Lakkireddy, MD, FACC
Other
Eligibility
18 Years to 60 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Nov 16, 2015 · Synced Oct 1, 2026, 2:27 PM EDT
Terminated No phase listed Observational

Radiofrequency Ablation of Ectopic Atrial Tachycardia

NCT00267982
View directory record Official record
Conditions
Congenital Disorders
Interventions
Not listed
Lead sponsor
Children's Healthcare of Atlanta
Other
Eligibility
Up to 21 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1992 – 2008
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 6, 2011 · Synced Oct 1, 2026, 2:27 PM EDT
Withdrawn Not applicable Interventional

Atrial Fibrillation Rate Control Therapy Guided By Continuous Ambulatory Monitoring

NCT00115843
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Mobile Cardiac Outpatient Telemetry
Device
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
Not listed
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 5, 2017 · Synced Oct 1, 2026, 2:27 PM EDT
Active, not recruiting No phase listed Observational

A Prospective Incident Study of Arrhythmias in Hypertrophic Cardiomyopathy

NCT04112290
View directory record Official record
Conditions
Hypertrophic Cardiomyopathy
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
260 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2027
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 5, 2026 · Synced Oct 1, 2026, 2:27 PM EDT