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ClinicalTrials.gov public records Last synced Sep 19, 2026, 11:45 AM EDT

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Showing 1–20 of 20 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Electrocardiogram holter Clear all
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 19, 2026, 11:45 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 19, 2026, 11:45 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 19, 2026, 11:45 AM EDT
Completed Not applicable Interventional Results available

Holter Versus Zio Patch Electrocardiographic Monitoring in Children

NCT03309956
View directory record Official record
Conditions
Arrhythmias, Cardiac, Heart Block
Interventions
Holter Monitor, Zio Patch
Device
Lead sponsor
Columbia University
Other
Eligibility
Up to 21 Years
Enrollment
247 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 17, 2024 · Synced Sep 19, 2026, 11:45 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of CSF-3 in Performing ECG

NCT05591157
View directory record Official record
Conditions
Healthy, ECG
Interventions
CSF-3 watch, designed to monitor a user's heart rate based on ECG (electrocardiogram) and PPG (Photoplethysmograph) readings
Device
Lead sponsor
CardiacSense Ltd.
Industry
Eligibility
21 Years and older
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 9, 2023 · Synced Sep 19, 2026, 11:45 AM EDT
Completed No phase listed Observational

Changes in Heart Rhythms Associated With Antipsychotic Drug Treatment

NCT00538122
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder, Bipolar Disorder
Interventions
24 Holter Monitor Recording
Device
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 65 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 26, 2009 · Synced Sep 19, 2026, 11:45 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 19, 2026, 11:45 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 19, 2026, 11:45 AM EDT
Recruiting Phase 1Phase 2 Interventional

Vasodilator Therapy With Isosorbide Mononitrate or Diltiazem to Reduce Vasotoxicity in Patients With Gastrointestinal Cancer Receiving Fluoropyrimidine Therapy

NCT07456852
View directory record Official record
Conditions
Malignant Digestive System Neoplasm
Interventions
Biospecimen Collection, Capecitabine, Diltiazem Hydrochloride, Electrocardiogram, Fluorouracil, Holter Monitoring, Isosorbide Mononitrate, Medical Device Usage and Evaluation, Placebo Administration, Questionnaire Administration
Procedure · Drug · Device + 1 more
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Sep 19, 2026, 11:45 AM EDT
Completed No phase listed Observational

Surface Electrocardiogram (ECG) Signal Recording for Implantable Subcutaneous String Defibrillator (ISSD) Development

NCT02991716
View directory record Official record
Conditions
Arrhythmia, Cardiac
Interventions
recorded patients
Other
Lead sponsor
NewPace Ltd
Industry
Eligibility
Not listed
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Atlantis, Florida
Source: ClinicalTrials.gov public record
Updated Jan 16, 2018 · Synced Sep 19, 2026, 11:45 AM EDT
Completed No phase listed Observational

Arrhythmias in Myotonic Muscular Dystrophy

NCT00622453
View directory record Official record
Conditions
Muscular Dystrophy, Arrhythmia, Sudden Cardiac Death
Interventions
Screening
Other
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
448 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 2015
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Feb 13, 2018 · Synced Sep 19, 2026, 11:45 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 19, 2026, 11:45 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 19, 2026, 11:45 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Myocardial Ischemia Detection for Early Identification of Patients With Ischemic Chest Pain

NCT02055443
View directory record Official record
Conditions
Cardiac Ischemia, Chest Pain, Shortness of Breath
Interventions
12-lead holter monitor application
Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 10, 2017 · Synced Sep 19, 2026, 11:45 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 19, 2026, 11:45 AM EDT
Completed No phase listed Observational Results available

Clinical Comparison of Electrocardiograms Collected Using an Ambulatory Holter

NCT02383667
View directory record Official record
Conditions
Electrocardiography
Interventions
Electrocardiogram holter
Device
Lead sponsor
University of Toledo Health Science Campus
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Toledo, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 6, 2019 · Synced Sep 19, 2026, 11:45 AM EDT
Completed Phase 1 Interventional

VEG111485: A QTc Study of Pazopanib

NCT00861029
View directory record Official record
Conditions
Carcinoma, Renal Cell
Interventions
Pazopanib, Placebo for pazopanib, Moxifloxacin, Placebo for moxifloxacin
Drug · Other
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
8
States / cities
Duarte, California • Santa Monica, California • Detroit, Michigan + 5 more
Source: ClinicalTrials.gov public record
Updated Nov 13, 2017 · Synced Sep 19, 2026, 11:45 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 19, 2026, 11:45 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Validation of Perin Health Patch ECG Monitoring Device Performance and Placement Accuracy

NCT07147920
View directory record Official record
Conditions
ECG, Electrocardiography, Monitoring, Physiologic
Interventions
Chest-Worn ECG Monitoring Device
Device
Lead sponsor
Perin Health Devices
Industry
Eligibility
22 Years to 90 Years
Enrollment
255 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Woodland Hills, California
Source: ClinicalTrials.gov public record
Updated Aug 28, 2025 · Synced Sep 19, 2026, 11:45 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 19, 2026, 11:45 AM EDT