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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Electrocardiogram Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

Tafenoquine Thorough QTc Study in Healthy Subjects

NCT01928914
View directory record Official record
Conditions
Malaria, Vivax
Interventions
Tafenoquine 300mg, Tafenoquine 600mg, Tafenoquine 1200mg, moxifloxacin, Placebo for Tafenoquine, Placebo for moxifloxaxin
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 65 Years
Enrollment
260 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
2
States / cities
Culver City, California • Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 11, 2017 · Synced Sep 13, 2026, 5:40 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Influence of Progesterone Administration on Drug-Induced QT Interval Lengthening

NCT01929083
View directory record Official record
Conditions
Prolonged QT Interval in EKG and Sudden Death
Interventions
Progesterone, Placebo, Ibutilide
Drug
Lead sponsor
Indiana University
Other
Eligibility
21 Years to 40 Years · Female only
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
2
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Oct 29, 2015 · Synced Sep 13, 2026, 5:40 AM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

Surface ECG Mapping

NCT04221958
View directory record Official record
Conditions
Electrocardiogram
Interventions
Electrocardiogram
Device
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated May 3, 2025 · Synced Sep 13, 2026, 5:40 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

The Efficacy of a Novel, Non-contact EKG in the NICU

NCT04269044
View directory record Official record
Conditions
Electrocardiogram Electrode Site Reaction
Interventions
non-contact EKG
Diagnostic Test
Lead sponsor
Northwestern Medicine
Other
Eligibility
0 Days to 30 Days
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Lake Forest, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 14, 2026 · Synced Sep 13, 2026, 5:40 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study to Define the Electrocardiogram Effects of a Single Dose of LX4211 in Healthy Subjects

NCT01913002
View directory record Official record
Conditions
Healthy
Interventions
LX4211 800 mg, LX4211 2000 mg, moxifloxacin 400 mg, LX4211 Placebo
Drug
Lead sponsor
Lexicon Pharmaceuticals
Industry
Eligibility
18 Years to 55 Years
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2013
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Oct 29, 2013 · Synced Sep 13, 2026, 5:40 AM EDT
Completed Not applicable Interventional Results available

REcovery of Left Ventricular Dysfunction in CAncer Patients (RECAP Trial)

NCT02543294
View directory record Official record
Conditions
Heart Failure, Cancer Treatment Induced Left Ventricular Dysfunction
Interventions
Echocardiograms, Electrocardiogram, Symptom Questionnaire, Telephone Follow-Up
Device · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 4, 2020 · Synced Sep 13, 2026, 5:40 AM EDT
Active, not recruiting Not applicable Interventional

Realtime Diagnosis From Electrocardiogram Artificial Intelligence-Guided Screening for Atrial Fibrillation With Long Follow-Up (REGAL)

NCT05923359
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Apple Watch
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 21, 2026 · Synced Sep 13, 2026, 5:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Electrocardiogram Clinical Validation Study

NCT03492554
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
1-Lead ECG, 12-Lead ECG
Other · Device
Lead sponsor
Apple Inc.
Industry
Eligibility
22 Years and older
Enrollment
602 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
5
States / cities
Miami, Florida • Orlando, Florida • The Villages, Florida + 2 more
Source: ClinicalTrials.gov public record
Updated Dec 2, 2020 · Synced Sep 13, 2026, 5:40 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 13, 2026, 5:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Closer Look at Yoga Nidra: Sleep Lab Analyses

NCT03685227
View directory record Official record
Conditions
Electroencephalography, Electrocardiography, Respiratory Rate, Surveys and Questionnaires
Interventions
Yoga Nidra
Other
Lead sponsor
National University of Natural Medicine
Other
Eligibility
18 Years to 45 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jun 16, 2019 · Synced Sep 13, 2026, 5:40 AM EDT
Terminated Not applicable Interventional Results available

Electrocardiogram (ECG) Guided Peripherally Inserted Central Catheter (PICC) Placement

NCT00742053
View directory record Official record
Conditions
Primary Focus: Adult Subjects Who Require PICC Placement
Interventions
ECG-guided PICC placement
Device
Lead sponsor
C. R. Bard
Industry
Eligibility
18 Years to 80 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Aug 9, 2017 · Synced Sep 13, 2026, 5:40 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Phono- and Electrocardiogram Assisted Detection of Valvular Disease

NCT03458806
View directory record Official record
Conditions
Aortic Valve Stenosis, Mitral Regurgitation, Heart Murmurs, Valvular Heart Disease
Interventions
AS Algorithm 1, AS Algorithm 2, MR Algorithm 1, MR Algorithm 2
Diagnostic Test
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
156 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jul 1, 2021 · Synced Sep 13, 2026, 5:40 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 13, 2026, 5:40 AM EDT
Completed Not applicable Interventional

AI-SCREENDCM Decentralized Clinical Trial - Pilot Study

NCT06609174
View directory record Official record
Conditions
Cardiomyopathy
Interventions
KardiaRx ECG Screening and AI interpretation of ECG
Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
119 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 3, 2025 · Synced Sep 13, 2026, 5:40 AM EDT
Completed Phase 1 Interventional

Thorough ECG (Electrocardiogram) and Drug Interaction Study With Anetumab Ravtansine and Itraconazole

NCT02824042
View directory record Official record
Conditions
Medical Oncology
Interventions
Anetumab ravtansine (BAY94-9343), Itraconazole
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
5
States / cities
Santa Monica, California • Detroit, Michigan • St Louis, Missouri + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 30, 2020 · Synced Sep 13, 2026, 5:40 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Pharmacokinetic and Exploratory Electrocardiogram (ECG) Study

NCT01018420
View directory record Official record
Conditions
Pharmacokinetics
Interventions
Colchicine, Moxifloxacin
Drug
Lead sponsor
Mutual Pharmaceutical Company, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Fargo, North Dakota
Source: ClinicalTrials.gov public record
Updated Nov 30, 2009 · Synced Sep 13, 2026, 5:40 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

A Usability Study of a Multi-channel ECG Monitoring Device

NCT07388355
View directory record Official record
Conditions
Healthy Adult Participants, Heart Disease, Arrythmia, Cardiac
Interventions
eWave Patch
Device
Lead sponsor
Wearlinq
Industry
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
New London, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Sep 13, 2026, 5:40 AM 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 Feb 28, 2021 · Synced Sep 13, 2026, 5:40 AM 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 19, 2024 · Synced Sep 13, 2026, 5:40 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Non-Invasive Assessment of Atherosclerosis in Patients With CGD and Other Disorders of the Immune System

NCT01063309
View directory record Official record
Conditions
Atherosclerosis, Chronic Granulomatous Disease (CGD)
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
156 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2020
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 27, 2021 · Synced Sep 13, 2026, 5:40 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

An Electrocardiogram Study to Evaluate the Effect of Vanzacaftor on the QT/QTc Interval in Healthy Participants

NCT05867147
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Vanzacaftor, Vanzacaftor Placebo, Moxifloxacin, Moxifloxacin Placebo
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years to 45 Years
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 13, 2023 · Synced Sep 13, 2026, 5:40 AM EDT
Terminated Not applicable Interventional Results available

ECG for Programming in CRT

NCT03936608
View directory record Official record
Conditions
Systolic Heart Failure, Cardiac Resynchronization Therapy, Electrocardiography
Interventions
Programming individualized RV-LV pacing offset to optimize ECG, Nominally programming CRT device without RV-LV offset
Device
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 100 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 2, 2020 · Synced Sep 13, 2026, 5:40 AM EDT
Completed Phase 1 Interventional Results available

A Study Measuring Effect of LY2140023 (Pomaglumetad Methionil) on Electrocardiographs in Participants With Schizophrenia

NCT01606436
View directory record Official record
Conditions
Schizophrenic Disorders
Interventions
LY2140023, Placebo, Moxifloxacin
Drug
Lead sponsor
Denovo Biopharma LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
86 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
8
States / cities
Garden Grove, California • San Diego, California • North Miami, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated Apr 2, 2023 · Synced Sep 13, 2026, 5:40 AM 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 4, 2023 · Synced Sep 13, 2026, 5:40 AM EDT