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ClinicalTrials.gov public records Last synced Oct 24, 2026, 10:36 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 265–288 of 308 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: ECG Clear all
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 11, 2017 · Synced Oct 24, 2026, 10:36 PM 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 21, 2023 · Synced Oct 24, 2026, 10:36 PM EDT
Recruiting No phase listed Observational

AI in Outpatient Practice for Diagnosing Aortic Stenosis and Diastolic Dysfunction

NCT06580158
View directory record Official record
Conditions
Aortic Stenosis, Diastolic Dysfunction
Interventions
AI-ECG Dashboard, Point of care ultrasound (POCUS)
Device · Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
60 Years and older
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 4, 2026 · Synced Oct 24, 2026, 10:36 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Assess the Effect of Cangrelor at the Therapeutic Dose and a Supratherapeutic Dose Level on the QT/QTc Interval in Healthy Volunteers

NCT00699504
View directory record Official record
Conditions
Healthy
Interventions
cangrelor, moxifloxacin, placebo
Drug
Lead sponsor
The Medicines Company
Industry
Eligibility
18 Years to 45 Years
Enrollment
67 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Tacoma, Washington
Source: ClinicalTrials.gov public record
Updated Jan 18, 2012 · Synced Oct 24, 2026, 10:36 PM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

Long QT Syndrome Screening in Newborns

NCT02412709
View directory record Official record
Conditions
Long QT Syndrome
Interventions
QTScreen ECG Recorder
Device
Lead sponsor
QT Medical, Inc.
Other
Eligibility
2 Weeks to 4 Weeks
Enrollment
4,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
3
States / cities
Lynwood, California • Torrance, California
Source: ClinicalTrials.gov public record
Updated Sep 28, 2016 · Synced Oct 24, 2026, 10:36 PM EDT
Terminated Not applicable Interventional

Early Coronary Angiography Versus Delayed Coronary Angiography

NCT02387398
View directory record Official record
Conditions
Out-of-Hospital Cardiac Arrest, Hypothermia, Cardiac Arrest
Interventions
Early Angiography
Procedure
Lead sponsor
University of Arizona
Other
Eligibility
18 Years and older
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
4
States / cities
Tucson, Arizona • Portland, Maine • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 14, 2022 · Synced Oct 24, 2026, 10:36 PM EDT
Not yet recruiting No phase listed Observational

Atrial Fibrillation Among Patients With Hematologic Malignancies on Tyrosine Kinase Inhibitor Therapy

NCT07711327
View directory record Official record
Conditions
Atrial Fibrillation (AF), Chronic Lymphocytic Leukemia, Waldenstrom Macroglobulinemia, Mantle Cell Lymphoma, Marginal Zone Lymphoma
Interventions
Not listed
Lead sponsor
Tina Baykaner
Other
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
3
States / cities
Duarte, California • San Diego, California • Stanford, California
Source: ClinicalTrials.gov public record
Updated Jul 17, 2026 · Synced Oct 24, 2026, 10:36 PM EDT
Not listed No phase listed Observational

FFR vs. icECG in Coronary Bifurcations

NCT01724957
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
Intracoronary ECG
Procedure
Lead sponsor
University National Heart Hospital
Other
Eligibility
18 Years to 90 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2020
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Aug 20, 2019 · Synced Oct 24, 2026, 10:36 PM EDT
Completed Not applicable Interventional

Study Comparing In-laboratory Polysomnography Electrocardiogram (PSG ECG) to Simultaneously Recorded In-laboratory ECG on the CPC M1 Device

NCT01234077
View directory record Official record
Conditions
Sleep Disorder
Interventions
CPC M1
Device
Lead sponsor
National Jewish Health
Other
Eligibility
18 Years to 70 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 19, 2021 · Synced Oct 24, 2026, 10:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Acute Effects of Organic Guayusa Extract

NCT05928195
View directory record Official record
Conditions
Acute Physiological Effects of Organic Guayusa Extract
Interventions
Acute Moderate-Dose Guayusa Extract Supplementation, Acute High-Dose Guayusa Extract Supplementation, Placebo
Dietary Supplement
Lead sponsor
Nathaniel Jenkins
Other
Eligibility
18 Years to 45 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jul 5, 2023 · Synced Oct 24, 2026, 10:36 PM EDT
Not listed Not applicable Interventional

Effect of taVNS on Heart Rate in Persistent Atrial Fibrillation

NCT05944575
View directory record Official record
Conditions
Atrial Fibrillation, Persistent
Interventions
active taVNS, sham-taVNS
Device
Lead sponsor
Burrell College of Health Sciences
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Las Cruces, New Mexico
Source: ClinicalTrials.gov public record
Updated Jul 14, 2023 · Synced Oct 24, 2026, 10:36 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

ECG Vector Determination

NCT01486056
View directory record Official record
Conditions
Epilepsy
Interventions
Not listed
Lead sponsor
Cyberonics, Inc.
Industry
Eligibility
12 Years and older
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Aug 21, 2012 · Synced Oct 24, 2026, 10:36 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Performance and Accuracy of an AI Enhanced Smart Watch Single Lead ECG

NCT05450809
View directory record Official record
Conditions
Healthy
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 89 Years
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 28, 2022 · Synced Oct 24, 2026, 10:36 PM EDT
Withdrawn Early Phase 1 Interventional

Electrocardiographic Mapping and Imaging

NCT01394965
View directory record Official record
Conditions
Cardiac Arrhythmia
Interventions
ECG electrodes
Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 21, 2013 · Synced Oct 24, 2026, 10:36 PM EDT
Completed Phase 1 Interventional

Effect of SAR302503 on ECG Activity in Patients With Solid Tumors

NCT01836705
View directory record Official record
Conditions
Neoplasm Malignant
Interventions
SAR302503 (TG101348), Placebo SAR302503, Panolosetron
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
8
States / cities
Los Angeles, California • Augusta, Georgia • Detroit, Michigan + 4 more
Source: ClinicalTrials.gov public record
Updated Mar 5, 2025 · Synced Oct 24, 2026, 10:36 PM 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, 10:36 PM EDT
Completed No phase listed Observational

Assessment of S-ICD Eligibility With 12-Lead ECG

NCT03209726
View directory record Official record
Conditions
Implantable Defibrillator User
Interventions
Not listed
Lead sponsor
Larisa Tereshchenko
Other
Eligibility
18 Years and older
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Mar 1, 2021 · Synced Oct 24, 2026, 10:36 PM EDT
Completed No phase listed Observational

Study to Assess Electrocardiogram Waveforms Produced Through the Utilization of the Sherlock 3CG™ Tip Confirmation System

NCT03028090
View directory record Official record
Conditions
Indication for Peripheral Intravenous Catheterization
Interventions
SHERLOCK 3CG™ Tip Confirmation System with MODUS Software
Device
Lead sponsor
C. R. Bard
Industry
Eligibility
21 Years and older
Enrollment
182 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
2
States / cities
Colorado Springs, Colorado • Montgomery, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 23, 2017 · Synced Oct 24, 2026, 10:36 PM 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, 10:36 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Double-Blind Randomized Crossover Trial to Access Electrocardiogram Effects of HPN-100

NCT01135680
View directory record Official record
Conditions
Drug Toxicity
Interventions
HPN-100, HPN-100 or Placebo, Placebo, Moxifloxacin
Drug
Lead sponsor
Amgen
Industry
Eligibility
18 Years to 45 Years
Enrollment
98 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jun 20, 2024 · Synced Oct 24, 2026, 10:36 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Heartbeat Sensitivity Calibration Using the ECG Accessory

NCT01268007
View directory record Official record
Conditions
ECG Comparisons in Normal Healthy Subject
Interventions
Not listed
Lead sponsor
Cyberonics, Inc.
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
1 participant
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jan 24, 2011 · Synced Oct 24, 2026, 10:36 PM 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, 10:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Sleep and Cardiovascular Health in Adolescence

NCT03727906
View directory record Official record
Conditions
Insomnia Type; Sleep Disorder
Interventions
No pre-sleep arousal manipulation, pre-sleep arousal down-regulation, pre-sleep arousal up-regulation
Other
Lead sponsor
SRI International
Industry
Eligibility
16 Years to 20 Years
Enrollment
115 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Menlo Park, California
Source: ClinicalTrials.gov public record
Updated May 1, 2023 · Synced Oct 24, 2026, 10:36 PM EDT
Recruiting Not applicable Interventional

Capitalizing on AI to CapTure Undiagnosed Structural Heart Disease

NCT07843004
View directory record Official record
Conditions
Structural Heart Abnormality, Valve Heart Disease, Heart Diseases, Cardiovascular Diseases
Interventions
EHR Alert
Device
Lead sponsor
Pierre Elias
Other
Eligibility
40 Years and older
Enrollment
4,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 25, 2026 · Synced Oct 24, 2026, 10:36 PM EDT