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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Arrhythmia Clear all
Terminated No phase listed Observational

Impact of Tachycardia on Outcome After Subarachnoid Hemorrhage (SAH)

NCT01585311
View directory record Official record
Conditions
Subarachnoid Hemorrhage (SAH), Tachycardia
Interventions
Not listed
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
1,540 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2015
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 9, 2019 · Synced Jul 21, 2026, 2:19 PM EDT
Completed No phase listed Observational

Comparison of QT Interval Readings Between Smartwatch Combined With Cardiologs Artificial Intelligence and 12-lead ECG

NCT05161065
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Cardiologs
Device
Lead sponsor
Cardiologs Technologies
Industry
Eligibility
22 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 2, 2023 · Synced Jul 21, 2026, 2:19 PM EDT
Recruiting Phase 4 Interventional

Pharmacogenetic Study of Antiarrhythmic Drugs for Atrial Fibrillation

NCT02347111
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Flecainide, Sotalol
Drug
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years to 100 Years
Enrollment
162 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
4
States / cities
Chicago, Illinois • Oak Lawn, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 23, 2025 · Synced Jul 21, 2026, 2:19 PM EDT
Completed Phase 2 Interventional Results available

A Dose-range Finding Study of MAA868 in Patients With Atrial Fibrillation

NCT04213807
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
MAA868 Cohort 1, MAA868 Cohort 2, MAA868 Cohort 3, Placebo
Biological · Other
Lead sponsor
Anthos Therapeutics, Inc.
Industry
Eligibility
18 Years to 85 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
6
States / cities
Beverly Hills, California • Wichita, Kansas • Alexandria, Louisiana + 3 more
Source: ClinicalTrials.gov public record
Updated Jan 10, 2022 · Synced Jul 21, 2026, 2:19 PM EDT
Completed Phase 4 Interventional

A Pilot Investigation Detecting Cryoablation Scar by 3D Late Gadolinium Enhancement

NCT02875730
View directory record Official record
Conditions
Atrial Fibrillation, Cryoablation
Interventions
Pulse Sequence, CMRI
Procedure
Lead sponsor
Aspire Foundation
Other
Eligibility
18 Years to 80 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 28, 2018 · Synced Jul 21, 2026, 2:19 PM EDT
Withdrawn Phase 3 Interventional

Vitamin C and Atrial Fibrillation After Cardiac Surgery

NCT01580683
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Ascorbic Acid, Identical Placebo
Drug · Other
Lead sponsor
Regional Hospital of Scranton
Other
Eligibility
50 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Scranton, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 12, 2015 · Synced Jul 21, 2026, 2:19 PM EDT
Completed Phase 4 Interventional Results available

RIGHT: Rhythm ID Going Head-to-Head Trial

NCT00148954
View directory record Official record
Conditions
Tachycardia
Interventions
VITALITY 2 Implantable Cardioverter Defibrillator, Medtronic Implantable Cardioverter Defibrillator
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
1,962 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jan 11, 2012 · Synced Jul 21, 2026, 2:19 PM EDT
Completed No phase listed Observational

Down Syndrome Autonomic Nervous System Induction Bradycardia

NCT05120531
View directory record Official record
Conditions
Down Syndrome, Bradycardia
Interventions
Monitoring patients undergoing surgery to look for association between ANS activity and bradycardia
Other
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
1 Month to 8 Years
Enrollment
195 participants
Timeline
2022 – 2023
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 14, 2023 · Synced Jul 21, 2026, 2:19 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Determine the Incidence of Long QT Amongst a Large Cohort of Subjects Diagnosed With Unilateral or Bilateral Sensorineural Hearing Loss.

NCT02082431
View directory record Official record
Conditions
Sensorineural Hearing Loss, Long QT Syndrome
Interventions
Not listed
Lead sponsor
Pediatrix
Other
Eligibility
1 Day to 90 Days
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2020
U.S. locations
12
States / cities
Anchorage, Alaska • Phoenix, Arizona • Waterford, Connecticut + 6 more
Source: ClinicalTrials.gov public record
Updated Oct 4, 2020 · Synced Jul 21, 2026, 2:19 PM EDT
Terminated Phase 1 Interventional Results available

Ascending Dose Study of OPC-108459 Intravenous Infusions in Patients With Paroxysmal and Persistent Atrial Fibrillation

NCT01483183
View directory record Official record
Conditions
Atrial Fibrillation, Paroxysmal Atrial Fibrillation, Persistent Atrial Fibrillation
Interventions
OPC-108459, Placebo
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
18 Years to 85 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
9
States / cities
Washington D.C., District of Columbia • Hollywood, Florida • Jacksonville, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Apr 9, 2017 · Synced Jul 21, 2026, 2:19 PM EDT
Completed Not applicable Interventional Results available

Dual Epicardial Endocardial Persistent Atrial Fibrillation (AF) Study

NCT01246466
View directory record Official record
Conditions
Persistent Atrial Fibrillation, Longstanding Persistent Atrial Fibrillation
Interventions
Hybrid: AtriCure Bipolar System & EP ablation procedure
Device
Lead sponsor
AtriCure, Inc.
Industry
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
5
States / cities
Stanford, California • Nashville, Tennessee • Plano, Texas + 2 more
Source: ClinicalTrials.gov public record
Updated Mar 31, 2021 · Synced Jul 21, 2026, 2:19 PM EDT
Completed No phase listed Observational

Eliminate Thromboembolism: Improving Anticoagulation in Non-valvular Atrial Fibrillation Patients

NCT02461602
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
251 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
21
States / cities
Pasadena, California • Coral Springs, Florida • Port Charlotte, Florida + 18 more
Source: ClinicalTrials.gov public record
Updated Apr 8, 2019 · Synced Jul 21, 2026, 2:19 PM EDT
Completed Phase 2 Interventional Results available

PETRO Stroke Prevention in Patients With AF by Treatment With Dabigatran, With and Without Aspirin, Compared to Warfarin

NCT01227629
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
dabigatran with ASA, warfarin, dabigatran without ASA
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years and older
Enrollment
502 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2003
U.S. locations
14
States / cities
Fayetteville, Arkansas • La Mesa, California • Pensacola, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated May 4, 2014 · Synced Jul 21, 2026, 2:19 PM EDT
Completed Not applicable Interventional Results available

Aveir DR i2i Study

NCT05252702
View directory record Official record
Conditions
Cardiac Pacemaker, Artificial, Cardiac Rhythm Disorder, Bradycardia
Interventions
Aveir DR Leadless Pacemaker System
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
464 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
54
States / cities
Scottsdale, Arizona • Jonesboro, Arkansas • Little Rock, Arkansas + 44 more
Source: ClinicalTrials.gov public record
Updated May 26, 2026 · Synced Jul 21, 2026, 2:19 PM EDT
Active, not recruiting Not applicable Interventional

Electrocardiogram-based Artificial Intelligence-assisted Detection of Heart Disease

NCT05442203
View directory record Official record
Conditions
Atrial Fibrillation, Structural Heart Disease
Interventions
Zio Patch Monitor, Echocardiogram
Device
Lead sponsor
Tempus AI
Industry
Eligibility
40 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
3
States / cities
Grand Rapids, Michigan • Cincinnati, Ohio • Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 24, 2024 · Synced Jul 21, 2026, 2:19 PM EDT
Completed No phase listed Observational

Risk Stratification and Benefits With Cardiac Resynchronization Therapy (CRT)

NCT00996086
View directory record Official record
Conditions
Heart Failure, Ventricular Arrhythmias
Interventions
CRT device implant
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
154 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
2
States / cities
New York, New York • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 3, 2019 · Synced Jul 21, 2026, 2:19 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Lifetime Risk for Cardiovascular Disease Among Non-White Ethnic Groups

NCT00377702
View directory record Official record
Conditions
Cardiovascular Diseases, Coronary Disease, Heart Failure, Congestive, Atrial Fibrillation
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years and older
Enrollment
500,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 17, 2016 · Synced Jul 21, 2026, 2:19 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 Jul 21, 2026, 2:19 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Validation of the Performance of the Electrocardiogram (ECG) Function in the Masimo INVSENSOR00057

NCT06071754
View directory record Official record
Conditions
Healthy, Atrial Fibrillation
Interventions
Masimo INVSENSOR00057
Device
Lead sponsor
Masimo Corporation
Industry
Eligibility
22 Years and older
Enrollment
365 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
4
States / cities
Irvine, California • Laguna Hills, California • Greensboro, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 30, 2025 · Synced Jul 21, 2026, 2:19 PM EDT
Completed No phase listed Observational

Use of NAVA-catheter Positioning Screen to Identify Different Cardiac Arrhythmias

NCT02040675
View directory record Official record
Conditions
Cardiac Arrhythmia
Interventions
Not listed
Lead sponsor
ProMedica Health System
Other
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Toledo, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 28, 2016 · Synced Jul 21, 2026, 2:19 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 21, 2020 · Synced Jul 21, 2026, 2:19 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Integrated Care (IC) Models for Patient-Centered Outcomes

NCT03451630
View directory record Official record
Conditions
Diabetes, Asthma, Chronic Obstructive Pulmonary Disease, Hypertension, Anxiety, Atrial Fibrillation, Congestive Heart Failure, Depression, Bipolar Disorder, Schizophrenia
Interventions
High-Touch, High-Tech, Optimal Discharge Planning
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
21 Years and older
Enrollment
1,400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 8, 2024 · Synced Jul 21, 2026, 2:19 PM EDT
Recruiting No phase listed Observational

ViewFlex X ICE First-in-Human Study

NCT06772493
View directory record Official record
Conditions
Cardiac Arrhythmias
Interventions
ViewFlex X ICE System
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
8
States / cities
Jonesboro, Arkansas • La Jolla, California • Jacksonville, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Jul 21, 2026, 2:19 PM EDT