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ClinicalTrials.gov public records Last synced Oct 22, 2026, 4:07 AM EDT

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Showing 217–240 of 372 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Heart Rate Fast Clear all
Terminated Phase 2 Interventional Results available

Esmolol to Treat the Hemodynamic Effects of Septic Shock

NCT02369900
View directory record Official record
Conditions
Septic Shock, Hypotension, Tachycardia
Interventions
Esmolol, Saline
Drug · Other
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 28, 2021 · Synced Oct 22, 2026, 4:07 AM EDT
Terminated No phase listed Observational

All Inclusive Kodex - EPD Study

NCT05489445
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
KODEX - EPD
Device
Lead sponsor
University of Arizona
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Dec 15, 2023 · Synced Oct 22, 2026, 4:07 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Surpoint Algorithm for Improved Guidance of Ablation for Ventricular Tachycardia

NCT05618717
View directory record Official record
Conditions
Ventricular Tachycardia
Interventions
Radiofrequency Ablation
Device
Lead sponsor
Rush University Medical Center
Other
Eligibility
19 Years to 80 Years
Enrollment
103 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 5, 2023 · Synced Oct 22, 2026, 4:07 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Standing Cognition and Co-morbidities of POTS Evaluation

NCT03602482
View directory record Official record
Conditions
Postural Tachycardia Syndrome, Ehlers-Danlos Syndrome
Interventions
Standing, Supine
Behavioral
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
13 Years to 60 Years
Enrollment
139 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 14, 2021 · Synced Oct 22, 2026, 4:07 AM EDT
Completed Phase 3 Interventional Results available

Safety Study of Etripamil Nasal Spray for Patients With Paroxysmal Supraventricular Tachycardia. NODE-303

NCT04072835
View directory record Official record
Conditions
Paroxysmal Supraventricular Tachycardia
Interventions
Etripamil NS
Drug
Lead sponsor
Milestone Pharmaceuticals Inc.
Other
Eligibility
18 Years and older
Enrollment
1,116 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
61
States / cities
Gilbert, Arizona • Fremont, California • Stanford, California + 54 more
Source: ClinicalTrials.gov public record
Updated May 23, 2024 · Synced Oct 22, 2026, 4:07 AM EDT
Completed Not applicable Interventional

Remote Self-training Program for Patients With Postural Orthostatic Tachycardia Syndrome

NCT04603157
View directory record Official record
Conditions
Postural Orthostatic Tachycardia Syndrome
Interventions
Hybrid Exercise Training
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Scottsdale, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 15, 2022 · Synced Oct 22, 2026, 4:07 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Pathophysiology of Dysautonomia and Postural Tachycardia Syndrome (POTS) in Post-viral Syndromes and COVID-19

NCT07405515
View directory record Official record
Conditions
POTS, POTS - Postural Orthostatic Tachycardia Syndrome, Dysautonomia, Autonomic Dysfunction
Interventions
Blood Sample Collection
Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older · Female only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 12, 2026 · Synced Oct 22, 2026, 4:07 AM EDT
Recruiting No phase listed Observational

Severe Complications During Ventricular Tachycardia or Premature Ventricular Complex Ablation

NCT07777744
View directory record Official record
Conditions
Ventricular Tachycardia (VT), Premature Ventricular Complexes
Interventions
Not listed
Lead sponsor
University Hospital, Basel, Switzerland
Other
Eligibility
18 Years and older
Enrollment
15,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
2
States / cities
Chicago, Illinois • Michigan Center, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 20, 2026 · Synced Oct 22, 2026, 4:07 AM EDT
Completed No phase listed Observational

NTX Wireless Patient Monitoring System

NCT00654693
View directory record Official record
Conditions
Desaturation, Bradycardia, Tachycardia, Hypertension, Hypotension
Interventions
Rapid Response Team
Other
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 7, 2012 · Synced Oct 22, 2026, 4:07 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Phase I/II Study of EP-guided Noninvasive Cardiac Radioablation for Treatment of Ventricular Tachycardia

NCT02919618
View directory record Official record
Conditions
Ventricular Tachycardia, Cardiomyopathy, Premature Ventricular Contractions
Interventions
stereotactic body radiotherapy (SBRT)
Radiation
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2024
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 21, 2024 · Synced Oct 22, 2026, 4:07 AM EDT
Completed Not applicable Interventional Results available

Flecainide for Catecholaminergic Polymorphic Ventricular Tachycardia

NCT01117454
View directory record Official record
Conditions
Catecholaminergic Polymorphic Ventricular Tachycardia
Interventions
Flecainide Acetate, Placebo, Beta blocker
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
5 Years to 99 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
10
States / cities
Los Angeles, California • Orange, California • New York, New York + 7 more
Source: ClinicalTrials.gov public record
Updated Jun 14, 2017 · Synced Oct 22, 2026, 4:07 AM 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 12, 2012 · Synced Oct 22, 2026, 4:07 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Simulation of Adenosine Push Methods for Treatment of SVT Using Agitated Saline Visualized by Ultrasound

NCT04051541
View directory record Official record
Conditions
Supraventricular Tachycardia
Interventions
Agitated saline push
Other
Lead sponsor
HealthPartners Institute
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 3, 2023 · Synced Oct 22, 2026, 4:07 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Cardiovagal Baroreflex Deficits Impair Neurovascular Coupling and Cognition in POTS

NCT03261570
View directory record Official record
Conditions
Postural Orthostatic Tachycardia Syndrome (POTS), POTS, Orthostatic Intolerance
Interventions
Pyridostigmine, Digoxin, Placebo
Drug
Lead sponsor
New York Medical College
Other
Eligibility
15 Years to 30 Years · Female only
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
1
States / cities
Hawthorne, New York
Source: ClinicalTrials.gov public record
Updated Sep 28, 2022 · Synced Oct 22, 2026, 4:07 AM EDT
Terminated Phase 2Phase 3 Interventional Results available

Controlling Rapid Atrial Fibrillation With Dexmedetomidine

NCT04042727
View directory record Official record
Conditions
Rapid Atrial Fibrillation, Heart Rate Control
Interventions
Dexmedetomidine Hydrochloride, Normal Saline
Drug · Other
Lead sponsor
Stony Brook University
Other
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Stony Brook, New York
Source: ClinicalTrials.gov public record
Updated Jun 4, 2024 · Synced Oct 22, 2026, 4:07 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Caffeine on Heart Function

NCT02401776
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Oct 18, 2016 · Synced Oct 22, 2026, 4:07 AM EDT
Completed No phase listed Observational

Study of the Wearable Defibrillator in Heart-Failure Patients

NCT01326624
View directory record Official record
Conditions
Heart Failure, Ventricular Dysfunction, Sudden Death, Sudden Cardiac Arrest, Ventricular Tachycardia, Ventricular Fibrillation
Interventions
wearable defibrillator (LifeVest)
Device
Lead sponsor
Zoll Medical Corporation
Industry
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2017
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Dec 6, 2017 · Synced Oct 22, 2026, 4:07 AM EDT
Recruiting No phase listed Observational

Inappropriate Sinus Tachycardia Registry

NCT05107635
View directory record Official record
Conditions
Inappropriate Sinus Tachycardia, Postural Tachycardia Syndrome
Interventions
AtriCure Commercially Available Devices
Device
Lead sponsor
AtriCure, Inc.
Industry
Eligibility
18 Years to 100 Years
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2030
U.S. locations
12
States / cities
Loma Linda, California • Palo Alto, California • Redwood City, California + 9 more
Source: ClinicalTrials.gov public record
Updated Oct 7, 2026 · Synced Oct 22, 2026, 4:07 AM EDT
Completed Not applicable Interventional Results available

Atropine in Catecholaminergic Polymorphic Ventricular Tachycardia (CPVT)

NCT02927223
View directory record Official record
Conditions
Catecholaminergic Polymorphic Ventricular Tachycardia
Interventions
Atropine, Exercise treadmill test
Drug · Procedure
Lead sponsor
Vanderbilt University
Other
Eligibility
6 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 28, 2020 · Synced Oct 22, 2026, 4:07 AM EDT
Terminated No phase listed Observational

The Use of CT to Identify Damaged Heart Muscle in Patients Undergoing Ventricular Tachycardia Ablation.

NCT00583284
View directory record Official record
Conditions
Ventricular Tachycardia
Interventions
Not listed
Lead sponsor
The Cleveland Clinic
Other
Eligibility
21 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 20, 2017 · Synced Oct 22, 2026, 4:07 AM EDT
Completed No phase listed Observational

Evaluation of Efficacy of the Prototype RPC (Rapid Pulse Confirmation) Device in Detecting Return of Pulsatile Flow in Patients Preparing to Separate From CPB (Cardiopulmonary Bypass)

NCT04526249
View directory record Official record
Conditions
Circulatory Failure, Cardiac Arrest
Interventions
rapid pulse confirmation device
Device
Lead sponsor
Michael Kyle Ritchie
Other
Eligibility
18 Years to 85 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Morgantown, West Virginia
Source: ClinicalTrials.gov public record
Updated Aug 25, 2020 · Synced Oct 22, 2026, 4:07 AM EDT
Completed Not applicable Interventional

Acute Study to Collect Electrical Signals From the Heart Using a Special Lead

NCT02772380
View directory record Official record
Conditions
Tachycardia, Ventricular Arrhythmias
Interventions
Defibrillation following induction of VT/VF
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
14
States / cities
Scottsdale, Arizona • Hartford, Connecticut • Jacksonville, Florida + 10 more
Source: ClinicalTrials.gov public record
Updated Jun 19, 2018 · Synced Oct 22, 2026, 4:07 AM EDT
Active, not recruiting Not applicable Interventional Results available

Effectiveness of the EMPOWER™ Modular Pacing System and EMBLEM™ Subcutaneous ICD to Communicate Antitachycardia Pacing

NCT04798768
View directory record Official record
Conditions
Tachycardia, Ventricular, Arrhythmia, Ventricular
Interventions
mCRM Therapy System
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
297 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2030
U.S. locations
18
States / cities
Phoenix, Arizona • Scottsdale, Arizona • Jonesboro, Arkansas + 14 more
Source: ClinicalTrials.gov public record
Updated Oct 15, 2026 · Synced Oct 22, 2026, 4:07 AM 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 7, 2012 · Synced Oct 22, 2026, 4:07 AM EDT