Search | Clinical Trials Finder

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ClinicalTrials.gov public records Last synced Nov 15, 2026, 9:54 AM EST

All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.

Showing 145–168 of 1,578 matching trials from the live ClinicalTrials.gov search.

Filters: Condition: Arrhythmias Cardiac Clear all

Conditions: Atrial Fibrillation, Venous Thromboses, Heart Valve Diseases
Interventions: Fearon warfarin dosing algorithm, Usual care; Other
Lead sponsor: University of Utah; Other
Eligibility: 22 Years and older
Enrollment: 30 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2018 – 2021
U.S. locations: 1
States / cities: Salt Lake City, Utah

Conditions: Premature Atrial Contractions, Premature Ventricular Contractions
Interventions: Start: On Caffeine, Start: Off Caffeine; Behavioral
Lead sponsor: University of California, San Francisco; Other
Eligibility: 18 Years and older
Enrollment: 108 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2019 – 2020
U.S. locations: 1
States / cities: San Francisco, California

Conditions: Atrial Fibrillation, COVID-19, Cancer, Thrombosis
Interventions: [64Cu]FBP8, PET/MR, Blood Collection, Electrocardiogram; Drug · Device · Procedure
Lead sponsor: Massachusetts General Hospital; Other
Eligibility: 18 Years to 85 Years
Enrollment: 165 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2016 – 2027
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: Obstructive Sleep Apnea (OSA), Atrial Fibrillation (Paroxysmal), Palpitations
Interventions: Rhythm Express Wearable System; Device
Lead sponsor: VivaQuant; Industry
Eligibility: 21 Years to 85 Years
Enrollment: 30 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2024 – 2025
U.S. locations: 4
States / cities: Conway, Arkansas • St Louis, Missouri • Charlotte, North Carolina + 1 more

Conditions: Paroxysmal Atrial Fibrillation
Interventions: PVAI followed by adenosine provocation; Procedure
Lead sponsor: Texas Cardiac Arrhythmia Research Foundation; Other
Eligibility: 18 Years to 80 Years
Enrollment: 188 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2013 – 2020
U.S. locations: 2
States / cities: Austin, Texas

Conditions: Ventricular Tachycardia
Interventions: amiodarone, sotalol, Biosense Webster's NAVI-STAR Thermo-Cool; Drug · Device
Lead sponsor: Duke University; Other
Eligibility: 18 Years and older
Enrollment: 27 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2012 – 2014
U.S. locations: 5
States / cities: Baltimore, Maryland • Durham, North Carolina • Columbus, Ohio + 2 more

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

Conditions: Atrial Fibrillation
Interventions: EnsoETM, Conventional Care; Device · Procedure
Lead sponsor: Riverside Medical Center; Other
Eligibility: 18 Years to 90 Years
Enrollment: 6 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2018
U.S. locations: 1
States / cities: Kankakee, Illinois

Conditions: Ventricular Tachycardia
Interventions: Versed, Fentanyl, Propofol, Sevoflurane; Drug
Lead sponsor: Brigham and Women's Hospital; Other
Eligibility: 18 Years and older
Enrollment: 11 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2014 – 2015
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: Apnea of Prematurity, Hypoxia, Bradycardia
Interventions: Vibration; Device
Lead sponsor: University of California, Los Angeles; Other
Eligibility: 1 Week and older
Enrollment: 19 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2014 – 2016
U.S. locations: 2
States / cities: Los Angeles, California • Santa Monica, California

Conditions: Atrial Fibrillation, Stroke, Stroke, Cardiovascular, Vascular Cognitive Impairment, Strokes Thrombotic, Stroke, Ischemic
Interventions: Cardiac and Brain MRI; Device
Lead sponsor: Tulane University; Other
Eligibility: 18 Years to 120 Years
Enrollment: 5 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2021 – 2026
U.S. locations: 1
States / cities: New Orleans, Louisiana

Conditions: Atrial Flutter, Atrial Fibrillation
Interventions: RSD1235, placebo; Drug
Lead sponsor: Astellas Pharma Inc; Industry
Eligibility: 18 Years and older
Enrollment: 276 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2004 – 2005
U.S. locations: 19
States / cities: Birmingham, Alabama • Huntsville, Alabama • Gainesville, Florida + 16 more

Conditions: Fatigue, Tachycardia
Interventions: Monster Energy Drink, Coffee; Dietary Supplement
Lead sponsor: University of Texas at Austin; Other
Eligibility: 18 Years to 35 Years
Enrollment: 30 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2014 – 2015
U.S. locations: 1
States / cities: Austin, Texas

Conditions: Heart Diseases, Arrhythmia, Atrial Fibrillation
Interventions: NAVISTAR® THERMOCOOL® Catheter, Antiarrhythmic drug; Device · Drug
Lead sponsor: Biosense Webster, Inc.; Industry
Eligibility: 18 Years and older
Enrollment: 167 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2004 – 2011
U.S. locations: 13
States / cities: Greenbrae, California • Orlando, Florida • Maywood, Illinois + 9 more

Conditions: Hyperkalemia
Interventions: Sodium Zirconium Cyclosilicate (SZC), SZC Placebo; Drug
Lead sponsor: AstraZeneca; Industry
Eligibility: 18 Years to 130 Years
Enrollment: 2,690 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2021 – 2024
U.S. locations: 57
States / cities: Huntsville, Alabama • Mesa, Arizona • Bakersfield, California + 47 more

Conditions: Sinus Node Dysfunction, Brady Tachy Syndrome
Interventions: PACEMAKER SYMPHONY 2550; Device
Lead sponsor: LivaNova; Industry
Eligibility: 18 Years and older
Enrollment: 400 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2004 – 2007
U.S. locations: 10
States / cities: Birmingham, Alabama • Mesa, Arizona • Los Angeles, California + 7 more

Conditions: Atrial Fibrillation, Catheter Ablation, Catheter Complications
Interventions: Insert bladder catheter, No catheter; Device
Lead sponsor: St. Vincent Cardiovascular Research Institute; Other
Eligibility: 18 Years and older
Enrollment: 160 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2018 – 2020
U.S. locations: 1
States / cities: Indianapolis, Indiana

Conditions: Atrial Fibrillation
Interventions: Not listed
Lead sponsor: Boehringer Ingelheim; Industry
Eligibility: 18 Years and older
Enrollment: 221,228 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2014 – 2017
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: Sleep Apnea, Atrial Fibrillation
Interventions: Continuous Positive Airway Pressure; Other
Lead sponsor: The Cleveland Clinic; Other
Eligibility: 18 Years to 80 Years
Enrollment: 317 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2012 – 2017
U.S. locations: 1
States / cities: Cleveland, Ohio

Conditions: Congenital Disorder
Interventions: Not listed
Lead sponsor: Emory University; Other
Eligibility: 19 Years and older
Enrollment: 10 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 1996 – 2006
U.S. locations: 1
States / cities: Atlanta, Georgia

Conditions: Atrial Fibrillation
Interventions: WATCHMAN FLX Implant, Market-approved OAC; Device · Drug
Lead sponsor: Boston Scientific Corporation; Industry
Eligibility: 18 Years and older
Enrollment: 1,600 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2019 – 2024
U.S. locations: 81
States / cities: Birmingham, Alabama • Huntsville, Alabama • Anchorage, Alaska + 70 more

Conditions: Non-paroxysmal Atrial Fibrillation
Interventions: PFA-based PVI+PWI plus adjunctive ablation guided by Electrogram Mapping of Key Substrates, PFA-based PVI+PWI alone; Procedure
Lead sponsor: Xu Liu; Other
Eligibility: 18 Years to 80 Years
Enrollment: 300 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2024 – 2028
U.S. locations: 1
States / cities: The Bronx, New York

Conditions: Heart Block Complete, Heart Block Second Degree
Interventions: Dexamethasone, No Dexamethasone; Drug · Other
Lead sponsor: The Hospital for Sick Children; Other
Eligibility: 16 Years to 50 Years · Female only
Enrollment: 350 participants
Timeline: 2020 – 2029
U.S. locations: 12
States / cities: Phoenix, Arizona • San Francisco, California • Denver, Colorado + 9 more

Conditions: Persistent Atrial Fibrillation, Long-standing Persistent Atrial Fibrillation
Interventions: Pulmonary Vein Antrum Isolation, scar homogenization, Non-PV triggers ablation; Procedure
Lead sponsor: Texas Cardiac Arrhythmia Research Foundation; Other
Eligibility: 18 Years to 80 Years
Enrollment: 186 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2013 – 2020
U.S. locations: 2
States / cities: Austin, Texas

Search by objective public record fields.

Fearon Algorithm in Warfarin Patient Self-Management

Coffee and Real-time Atrial and Ventricular Ectopy

Positron Emission Tomography (PET) Imaging of Thrombosis

Rhythm Express Wearable System vs. Simultaneous Polysomnography for the Diagnosis of Obstructive Sleep Apnea in Adults With Suspected or Observed Atrial Fibrillation

PV Reconnection After PVAI at Different Power Settings and Adenosine Provocation

Pilot Study of Catheter Ablation for Ventricular Tachycardia in Patients With an Implantable Cardioverter Defibrillator

Risk Stratification and Benefits With Cardiac Resynchronization Therapy (CRT)

Esophageal Cooling in Radiofrequency Cardiac Ablation

Inducibility and Stability of Ventricular Tachycardia Inpatients Undergoing VT Ablation Under General Anesthesia

Non-invasive Intervention for Apnea of Prematurity

Advanced Cardiac Imaging To Predict Embolic Stroke On Brain MRI: A Pilot Study

Study to Determine the Response and Effectiveness of RSD1235 in Subjects With Atrial Fibrillation or Atrial Flutter

Effect of Caffeine on Heart Function

NAVISTAR® THERMOCOOL® Catheter for the Radiofrequency Ablation of Symptomatic Paroxysmal Atrial Fibrillation

Effect of Sodium Zirconium Cyclosilicate on Arrythmia-related Cardiovascular Outcomes in Participants on Chronic Hemodialysis With Recurrent Hyperkalemia (DIALIZE-Outcomes)

Prevention of Atrial Arrhythmia in Patients Without Atrioventricular (AV) Conduction Disease

Bladder Catheters During Ablation Procedures

Sequential Expansion of Comparative Effectiveness of Anticoagulants

Influence of Sleep Apnea on Risk of Atrial Fibrillation

Pacemaker Therapy in Adults With Congenital Heart Defects

Comparison of Anticoagulation With Left Atrial Appendage Closure After AF Ablation

Pulsed-Field Ablation With/Without Electrogram Mapping

Slow Heart Registry of Fetal Immune-mediated High Degree Heart Block

Pulmonary Vein Antrum Isolation (PVAI) Plus Scar Homogenization and Non-PV Triggers Ensure Long-term Recurrence-free Survival in Non-paroxysmal Atrial Fibrillation