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Showing 1–24 of 54 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Holter Monitor Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Cardiac Autonomic Function in Women with Microvascular Coronary Dysfunction

NCT01568177
View directory record Official record
Conditions
Microvascular Coronary Dysfunction
Interventions
Mental Stress Testing, Peripheral Arterial Tonometry (PAT) Testing, Heart Rate Variability (HRV), RESPeRATE Breathing Trial, SPECT cardiac scan with 123I-mIBG and Myoview
Behavioral · Other · Procedure
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2024
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Sep 6, 2026, 2:21 AM EDT
Completed No phase listed Observational

A Study to Determine the Feasibility of Wireless Electrocardiography

NCT02162394
View directory record Official record
Conditions
Atrial Fibrillation, Premature Atrial and Ventricular Beats, Conduction Defects, Normal Sinus Rhythm
Interventions
Observational ambulatory ECG monitoring
Device
Lead sponsor
Peerbridge Health, Inc
Industry
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 24, 2017 · Synced Sep 6, 2026, 2:21 AM EDT
Withdrawn Not applicable Interventional

Intracoronary Bradykinin Mediated t-PA Release in Heart Transplant Recipients

NCT00780377
View directory record Official record
Conditions
Heart Transplantation
Interventions
Bradykinin
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 19, 2017 · Synced Sep 6, 2026, 2:21 AM EDT
Completed Not applicable Interventional Results available

Ambulatory Post-Syncope Arrhythmia Protection Feasibility Study

NCT02188147
View directory record Official record
Conditions
Syncope
Interventions
Short Term Wearable Defibrillator
Device
Lead sponsor
Zoll Medical Corporation
Industry
Eligibility
18 Years and older
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
6
States / cities
Danbury, Connecticut • Jacksonville, Florida • Minneapolis, Minnesota + 3 more
Source: ClinicalTrials.gov public record
Updated Feb 20, 2023 · Synced Sep 6, 2026, 2:21 AM EDT
Terminated Phase 1Phase 2 Interventional Results available

The Effects of Cannabidiol (CBD) on Electrical and Autonomic Cardiac Function in Children With Severe Epilepsy

NCT02815540
View directory record Official record
Conditions
Lennox-Gastaut Syndrome, Dravet Syndrome
Interventions
12-Lead ECG, Cannabidiol
Procedure · Drug
Lead sponsor
Gillette Children's Specialty Healthcare
Other
Eligibility
2 Years to 30 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 29, 2022 · Synced Sep 6, 2026, 2:21 AM EDT
Completed No phase listed Observational

Routine Cardiac Screening in Sarcoidosis Patients

NCT03902223
View directory record Official record
Conditions
Sarcoidosis, Cardiac Sarcoidosis, Boeck's Disease, Besnier-Boeck Disease
Interventions
Enhanced Screening Protocol for Cardiac Sarcoidosis., Routine Screening for Suspected Cardiac Sarcoidosis
Diagnostic Test
Lead sponsor
Foundation for Sarcoidosis Research
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
10
States / cities
Denver, Colorado • Chicago, Illinois • Iowa City, Iowa + 6 more
Source: ClinicalTrials.gov public record
Updated Jan 13, 2025 · Synced Sep 6, 2026, 2:21 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

AI-Enabled Direct-from-ECG Ejection Fraction (EF) Severity Assessment Using COR ECG Wearable Monitor

NCT06699056
View directory record Official record
Conditions
Ventricular Ejection Fraction, LVF, LV Dysfunction, Atrial Enlargement, Conduction Defect, Heart Failure, Valvular Heart Disease, Ischemic Heart Disease, Cardiotoxicity, Myocardial Infarction, Dilated Cardiomyopathy, HFrEF - Heart Failure With Reduced Ejection Fraction, HFpEF - Heart Failure With Preserved Ejection Fraction, Syncope, Remodeling, Cardiac
Interventions
15-minutes of sitting during COR ECG Acquistion
Device
Lead sponsor
Peerbridge Health, Inc
Industry
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
8
States / cities
Orange, California • Pasadena, California • Detroit, Michigan + 5 more
Source: ClinicalTrials.gov public record
Updated May 31, 2026 · Synced Sep 6, 2026, 2:21 AM EDT
Completed Not applicable Interventional

A One Visit Follow Up of Adults With Fabry Disease Who Started Long-term Enzyme Replacement Therapy As Children

NCT04002531
View directory record Official record
Conditions
Quality of Life, Renal Insufficiency, Cardiac Event
Interventions
General and Neurological examination, Vital signs, 12 lead electrocardiogram, Echocardiogram, Blood draw, Urine collection, 2-hour Holter Monitor, Brief Pain Inventory questionnaire, Quality of Life questionnaire
Other · Procedure
Lead sponsor
Baylor Research Institute
Other
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced Sep 6, 2026, 2:21 AM EDT
Recruiting No phase listed Observational

Wearable Technology to Evaluate Hyperglycemia and HRV in DMD - Longitudinal Aim

NCT06093100
View directory record Official record
Conditions
Duchenne Muscular Dystrophy
Interventions
wearable technology
Device
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
10 Years and older · Male only
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2030
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Nov 5, 2025 · Synced Sep 6, 2026, 2:21 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Electrocardiography Data Analysis in Sleep Disorders

NCT02188498
View directory record Official record
Conditions
Sleep Disorders, Sleep Apnea, Sleep Disordered Breathing
Interventions
Polysomnography
Procedure
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 95 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 3, 2019 · Synced Sep 6, 2026, 2:21 AM EDT
Completed Phase 1 Interventional

Open Label Regorafenib Study to Evaluate Cardiovascular Safety Parameters, Tolerability, and Anti-tumor Activity

NCT01339104
View directory record Official record
Conditions
Neoplasms
Interventions
Regorafenib (Stivarga, BAY73-4506)
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
6
States / cities
Aurora, Colorado • Ann Arbor, Michigan • St Louis, Missouri + 3 more
Source: ClinicalTrials.gov public record
Updated Sep 30, 2014 · Synced Sep 6, 2026, 2:21 AM EDT
Withdrawn Not applicable Interventional

The Effect of Yogurt in Cancer Patient With Moderate Gastrointestinal (GI) Symptoms

NCT03177681
View directory record Official record
Conditions
Malignant Neoplasms of Independent (Primary) Multiple Sites
Interventions
Tongue Assessment, Stool Sample, Questionnaires, Holter Monitor, Yogurt
Other · Behavioral · Device
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 26, 2023 · Synced Sep 6, 2026, 2:21 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 9, 2012 · Synced Sep 6, 2026, 2:21 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Teaching Caregivers of Hospice Patients to Administer Reiki

NCT04086017
View directory record Official record
Conditions
Hospice, Pain, Anxiety, Stress
Interventions
Reiki therapy
Other
Lead sponsor
Ohio State University
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 16, 2024 · Synced Sep 6, 2026, 2:21 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

The Effectiveness of Patch-Based Screening for Pre-Symptomatic Atrial Fibrillation to Improve Patient Outcome

NCT06953778
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Zio XT® Patch
Device
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
65 Years and older
Enrollment
24,060 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2027 – 2033
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Sep 6, 2026, 2:21 AM EDT
Withdrawn Phase 4 Interventional Accepts healthy volunteers

Micra AV Tracking During Exercise Testing

NCT05966168
View directory record Official record
Conditions
Heart Block AV
Interventions
Medtronic Micra AV Device
Device
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 16, 2024 · Synced Sep 6, 2026, 2:21 AM EDT
Completed Phase 2 Interventional Results available

A 3-period Crossover Study With GSK573719 as Monotherapy in Adult Subjects With Asthma

NCT01641692
View directory record Official record
Conditions
Asthma
Interventions
GSK573719 Active treatment or Placebo, GSK573719 (Sub-group cohort), Salbutamol/Albuterol
Drug · Procedure
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
350 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
12
States / cities
Newport Beach, California • Sunset, Louisiana • Bethesda, Maryland + 9 more
Source: ClinicalTrials.gov public record
Updated Mar 8, 2017 · Synced Sep 6, 2026, 2:21 AM EDT
Active, not recruiting Not applicable Interventional

Insertable Cardiac Monitor for Primary Atrial Fibrillation Detection in High-Risk Heart Failure Patients

NCT04818645
View directory record Official record
Conditions
Atrial Fibrillation, Heart Failure
Interventions
ASSERT Insertable Cardiac Monitor, Conventional Management and monitoring
Device · Other
Lead sponsor
University of Rochester
Other
Eligibility
18 Years and older
Enrollment
477 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Mar 22, 2026 · Synced Sep 6, 2026, 2:21 AM EDT
Completed Phase 1 Interventional

A Study to Evaluate the Effect of Repeat Oral Dosing of GSK2118436 on Cardiac Repolarization in Subjects With V600 BRAF Mutation-Positive Tumors

NCT01738451
View directory record Official record
Conditions
Cancer
Interventions
GSK2118436 75 mg, Placebo
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
5
States / cities
Scottsdale, Arizona • Memphis, Tennessee • Nashville, Tennessee + 2 more
Source: ClinicalTrials.gov public record
Updated Nov 12, 2017 · Synced Sep 6, 2026, 2:21 AM EDT
Recruiting Phase 2 Interventional

RiLuzole to Reduce Atrial FIb Study Using Holter Monitoring

NCT05292209
View directory record Official record
Conditions
Atrial Fibrillation Paroxysmal
Interventions
Riluzole 50 MG
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Nov 23, 2023 · Synced Sep 6, 2026, 2:21 AM EDT
Withdrawn Not applicable Interventional

The Effect of Yoga on Cardiac Sympathetic Innervation Evaluated by I-123 mIBG

NCT03227393
View directory record Official record
Conditions
Heart Failure, Systolic
Interventions
Yoga training
Behavioral
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 19, 2018 · Synced Sep 6, 2026, 2:21 AM EDT
Completed Phase 4 Interventional Results available

A Study in Cancer Patients to Evaluate the Effect of Lapatinib on the QTc Interval

NCT01328054
View directory record Official record
Conditions
Cancer
Interventions
lapatinib, placebo matching lapatinib
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
4
States / cities
Detroit, Michigan • Lebanon, New Hampshire • Durham, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2016 · Synced Sep 6, 2026, 2:21 AM EDT
Completed No phase listed Observational

Assert-IQ Implantable Cardiac Monitor (ICM) Post Market Study

NCT06172699
View directory record Official record
Conditions
Atrial Fibrillation Paroxysmal, Atrial Fibrillation, Persistent, Cardiac Arrhythmia, Ablation
Interventions
Holter monitoring in patients who have been successfully implanted with an Abbott Assert-IQ ICM device
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years to 100 Years
Enrollment
151 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
11
States / cities
San Diego, California • Orlando, Florida • Overland Park, Kansas + 8 more
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Sep 6, 2026, 2:21 AM EDT
Recruiting No phase listed Observational

Fetal Electrophysiologic Abnormalities in High-Risk Pregnancies Associated With Fetal Demise

NCT03775954
View directory record Official record
Conditions
High Risk Pregnancy, Congenital Heart Disease, Fetal Hydrops, Twin Monochorionic Monoamniotic Placenta, Gastroschisis, Fetal Demise, Stillbirth, Fetal Arrhythmia, Long QT Syndrome, Intrauterine Fetal Death, Sudden Infant Death, Pregnancy Loss, Twin Twin Transfusion Syndrome, Birth Defect, Fetal Cardiac Anomaly, Fetal Cardiac Disorder, Fetal Death, Brugada Syndrome, Fetal Tachycardia
Interventions
Fetal Magnetocardiogram and Neonatal Electrocardiogram, Substudy only: Maternal/Infant Pharmacogenomic assessment postnatally
Diagnostic Test · Genetic
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2028
U.S. locations
2
States / cities
Madison, Wisconsin • Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced Sep 6, 2026, 2:21 AM EDT