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ClinicalTrials.gov public records Last synced Oct 24, 2026, 6:03 AM EDT

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Showing 337–360 of 372 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Heart Rate Fast Clear all
Completed Not applicable Interventional

Application of High Power Radio Frequency Energy in the Ventricular Tachycardia Treatment

NCT04657705
View directory record Official record
Conditions
Ventricular Tachycardia, Heart Diseases
Interventions
High power ablation, Standard ablation power
Procedure
Lead sponsor
Federal Research Clinical Center of Federal Medical & Biological Agency, Russia
Government
Eligibility
18 Years and older
Enrollment
119 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jan 30, 2023 · Synced Oct 24, 2026, 6:03 AM EDT
Terminated Phase 3 Interventional Results available

Efficacy and Safety of Etripamil for the Termination of Spontaneous Paroxysmal Supraventricular Tachycardia (PSVT).

NCT03464019
View directory record Official record
Conditions
Paroxysmal Supraventricular Tachycardia
Interventions
Etripamil, Placebo, Etripamil Test Dose
Drug
Lead sponsor
Milestone Pharmaceuticals Inc.
Other
Eligibility
18 Years and older
Enrollment
1,097 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
54
States / cities
Phoenix, Arizona • Little Rock, Arkansas • Cerritos, California + 44 more
Source: ClinicalTrials.gov public record
Updated Jul 12, 2024 · Synced Oct 24, 2026, 6:03 AM EDT
Not yet recruiting Not applicable Interventional

Cardiac Radioablation for VT

NCT06593418
View directory record Official record
Conditions
Ventricular Tachycardia, Myocardial Infarction
Interventions
Stereotactic Body Radiation Therapy (SBRT)
Radiation
Lead sponsor
Corewell Health East
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Royal Oak, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 20, 2026 · Synced Oct 24, 2026, 6:03 AM EDT
Terminated Phase 2 Interventional

Study Evaluating GAP-486 in Non-sustained Ventricular Tachycardia

NCT00124891
View directory record Official record
Conditions
Arrhythmias
Interventions
Double-blind investigational anti-arrhythmic, GAP-486
Drug
Lead sponsor
Wyeth is now a wholly owned subsidiary of Pfizer
Industry
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
6
States / cities
Merced, California • Melbourne, Florida • Orlando, Florida + 3 more
Source: ClinicalTrials.gov public record
Updated May 3, 2022 · Synced Oct 24, 2026, 6:03 AM EDT
Completed No phase listed Observational

ADVENT Trial Long Term Outcomes Evaluating Atrial Fibrillation Progression Study

NCT06526546
View directory record Official record
Conditions
Paroxysmal Atrial Fibrillation
Interventions
Not listed
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
364 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
25
States / cities
Birmingham, Alabama • Phoenix, Arizona • Burlingame, California + 18 more
Source: ClinicalTrials.gov public record
Updated Mar 2, 2026 · Synced Oct 24, 2026, 6:03 AM EDT
Completed Not applicable Interventional Results available

Pan-Asia United States PrEvention of Sudden Cardiac Death Catheter Ablation Trial

NCT02848781
View directory record Official record
Conditions
Ventricular Tachycardia (VT)
Interventions
Implantable Cardioverter Defibrillator (ICD), Catheter Ablation
Device · Procedure
Lead sponsor
University of Arizona
Other
Eligibility
18 Years and older
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Dec 14, 2022 · Synced Oct 24, 2026, 6:03 AM EDT
Terminated Not applicable Interventional Results available

Advanced Reperfusion Strategies for Refractory Cardiac Arrest

NCT03880565
View directory record Official record
Conditions
Cardiac Arrest, Extracorporeal Membrane Oxygenation Complication, Ventricular Fibrillation, Pulseless Ventricular Tachycardia, Out-Of-Hospital Cardiac Arrest
Interventions
Early Extracorporeal Membrane Oxygenation (ECMO) Facilitated Resuscitation, Standard Advanced Cardiac Life Support (ACLS) Resuscitation
Device
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 75 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 10, 2022 · Synced Oct 24, 2026, 6:03 AM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

Presentation of Young Adults With and Without Joint Hypermobility

NCT07657507
View directory record Official record
Conditions
Hypermobile Ehlers-Danlos Syndrome, Postural Orthostatic Tachycardia Syndrome (POTS)
Interventions
Not listed
Lead sponsor
Clarkson University
Other
Eligibility
18 Years to 60 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2036
U.S. locations
1
States / cities
Potsdam, New York
Source: ClinicalTrials.gov public record
Updated Oct 22, 2026 · Synced Oct 24, 2026, 6:03 AM EDT
Completed Not applicable Interventional

FLExAbility Sensor Enabled Substrate Targeted Ablation for the Reduction of VT Study

NCT03490201
View directory record Official record
Conditions
Ventricular Tachycardia
Interventions
Market Approved RF Ablation System, FlexAbility SE Ablation Catheter
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
592 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
23
States / cities
Birmingham, Alabama • Los Angeles, California • San Diego, California + 18 more
Source: ClinicalTrials.gov public record
Updated Jan 8, 2025 · Synced Oct 24, 2026, 6:03 AM EDT
Not yet recruiting Not applicable Interventional

The Impact of Improved Vagal Function on Periaqueductal Gray Connectivity

NCT05618067
View directory record Official record
Conditions
Postural Tachycardia Syndrome
Interventions
breathing exercise training
Behavioral
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years to 50 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2028
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Sep 16, 2026 · Synced Oct 24, 2026, 6:03 AM EDT
Recruiting No phase listed Observational

Screening Study for KIT D816V Mutated Mast Cell Disease in Select Populations

NCT07143669
View directory record Official record
Conditions
Clonal Mast Cell Disease, KIT D816V Mutation, Suspected KITD816V Mutated Clonal Mast Cell Disease
Interventions
Screening
Other
Lead sponsor
Blueprint Medicines Corporation
Industry
Eligibility
18 Years and older
Enrollment
750 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
25
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Tucson, Arizona + 21 more
Source: ClinicalTrials.gov public record
Updated Oct 7, 2026 · Synced Oct 24, 2026, 6:03 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Objective Sleep Disturbances in Orthostatic Intolerance

NCT00581022
View directory record Official record
Conditions
Postural Tachycardia Syndrome, Chronic Orthostatic Intolerance
Interventions
Polysomnography
Procedure
Lead sponsor
Satish R. Raj
Other
Eligibility
18 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2016
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 10, 2018 · Synced Oct 24, 2026, 6:03 AM EDT
Completed No phase listed Observational

The Simple ECG Monitoring Trial (Comparison of a Novel Recording System With a Standard Holter Monitor)

NCT01382953
View directory record Official record
Conditions
Syncope, Pre-syncope, Atrial Fibrillation, Supraventricular Tachycardia
Interventions
Standard Holter/Investigational patch
Device
Lead sponsor
Seattle Institute for Cardiac Research
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
2
States / cities
Chicago, Illinois • Enumclaw, Washington
Source: ClinicalTrials.gov public record
Updated Jan 10, 2012 · Synced Oct 24, 2026, 6:03 AM 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 24, 2026, 6:03 AM EDT
Completed Not applicable Interventional

Abdominal and Lower Extremity Compression During Tilt Table Testing in Adolescent POTS Patients

NCT01795469
View directory record Official record
Conditions
Postural Orthostatic Tachycardia Syndrome (POTS), Syncope
Interventions
Zoex compression garment
Device
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
12 Years to 19 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 31, 2017 · Synced Oct 24, 2026, 6:03 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Personalized Therapy Study - Intrinsic Antitachycardia Pacing Post-Approval Study (iATP PAS)

NCT04496518
View directory record Official record
Conditions
Ventricular Tachycardia
Interventions
Intrinsic Antitachycardia Pacing (iATP) Therapy
Device
Lead sponsor
Medtronic
Industry
Eligibility
Not listed
Enrollment
2,200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2028
U.S. locations
51
States / cities
Chandler, Arizona • Little Rock, Arkansas • Chula Vista, California + 44 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2025 · Synced Oct 24, 2026, 6:03 AM EDT
Completed No phase listed Observational

Long COVID-19 Cutaneous Signatures: An ARPA Funded Research Project

NCT07005947
View directory record Official record
Conditions
Long COVID-19, Acute COVID-19, Postural Orthostatic Tachycardia Syndrome (POTS), Diabetic Neuropathy
Interventions
Not listed
Lead sponsor
CND Life Sciences
Other
Eligibility
18 Years to 80 Years
Enrollment
237 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Scottsdale, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 2, 2026 · Synced Oct 24, 2026, 6:03 AM EDT
Not listed No phase listed Observational

Comparison of Continuous Sternal ECG Patch Monitors (Carnation and Zio) Trial

NCT02031484
View directory record Official record
Conditions
Syncope, Presyncope, Palpitations, Atrial Fibrillation, Supraventricular Tachycardia
Interventions
Not listed
Lead sponsor
Bardy Diagnostics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
4
States / cities
Chicago, Illinois • Iowa City, Iowa • Charlotte, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 7, 2016 · Synced Oct 24, 2026, 6:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of Dietary Sodium Intake on Vascular Endothelium

NCT01550315
View directory record Official record
Conditions
Postural Tachycardia Syndrome (POTS)
Interventions
Pulsitile Arterial Tonometry (PAT) Protocol, Calf Blood Flow in Reactive Hyperemia (CBF-RH), Evaluation of Forearm-Mediated Dilation
Procedure · Device
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 60 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2021
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 5, 2022 · Synced Oct 24, 2026, 6:03 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Defining the Risk of Ventricular Tachycardia in Genetic Forms of Early-onset Atrial Fibrillation

NCT06647459
View directory record Official record
Conditions
Ventricular Tachycardia, Atrial Fibrillation
Interventions
EP Study
Diagnostic Test
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Oct 24, 2026, 6:03 AM EDT
Completed Phase 4 Interventional Results available

CryoCath Freezor CryoAblation Catheter System (CRYOFACTS)

NCT00621621
View directory record Official record
Conditions
Tachycardia, Atrioventricular Nodal Reentry
Interventions
Freezor® Cardiac Cryoablation Catheter CryoConsole System
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2013
U.S. locations
4
States / cities
Minneapolis, Minnesota • Omaha, Nebraska • New York, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 16, 2018 · Synced Oct 24, 2026, 6:03 AM EDT
Active, not recruiting Not applicable Interventional

Rapid Entrainment and Signal-guided Neuromodulation for Behavioral Health

NCT07812987
View directory record Official record
Conditions
Anxiety, PTSD, ADHD, Depression Disorders, Post-traumatic Stress, Substance Use, Executive Function, Sleep Disturbance
Interventions
AIP-Informed Integrative Psychotherapy, Transcutaneous Auricular Vagus Nerve Stimulation, Regulated Breathing and Autonomic Regulation, Audiovisual Entrainment, Vibroacoustic Stimulation, Breathwork-Based Auditory Driving Entropy Module (BADEM), Transcranial Electrical Stimulation
Behavioral · Device
Lead sponsor
Tactical Mind Research Coalition, Inc.
Other
Eligibility
18 Years to 70 Years
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Sep 16, 2026 · Synced Oct 24, 2026, 6:03 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 24, 2026, 6:03 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 24, 2026, 6:03 AM EDT