Clinical trials: ECG Abnormalities
Cardiovascular Diseases
Evaluating Electrocardiogram (ECG) Abnormalities From Young Adulthood Through Middle Age
An electrocardiogram (ECG) is a test that evaluates the electrical activity of the heart and can be used to detect heart problems.
- Trial name
- CARDIA ECG (NCT00556751)
- Where
- United States
- Volunteers
- 5,115 people
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Structural Heart Abnormality
The SALMANTICOR Study
The SALMANTICOR study will obtain data on the prevalence and incidence of structural heart disease in a population setting. A cross-section survey of randomly selected residents of Salamanca (Spain) will be performed.
- Trial name
- SALMANTICOR (NCT03429452)
- Where
- Spain
- Volunteers
- 2,057 people
- Sponsor
- AORTICA Group
Cystic Fibrosis
Phase 1, QT/QTC Interval Study in Healthy Subjects
This study is designed to evaluate the effect of multiple doses of lumacaftor in combination with ivacaftor on cardiac repolarization, as detected by QT/QTc interval corrected for heart rate in healthy subjects.
- Trial name
- NCT01910415
- Testing
- Lumacaftor, Ivacaftor, moxifloxacin hydrochloride
- Where
- Netherlands
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Vertex Pharmaceuticals Incorporated
Effects of Different Meals on the QT/QTc Interval, Insulin and Oral Hypoglycemic [Antidiabetic] Drugs Causing Adverse Effects in Therapeutic Use
Food and Insulin Effect on QT/QTC Interval of ECG
Moxifloxacin is routinely used as a probe to confirm assay sensitivity in thorough electrocardiogram (ECG) studies. It has been shown that a meal shortens the QT interval, which may affect pharmacokinetics (PK) and/or…
- Conditions
- Effects of Different Meals on the QT/QTc Interval, Insulin and Oral Hypoglycemic [Antidiabetic] Drugs Causing Adverse Effects in Therapeutic Use, C-Peptide Effects on the QT/QTc Interval, Moxifloxacin ECG Profile in Fed and Fasted State
- Trial name
- C11035 (NCT01642485)
- Testing
- Moxifloxacin 400 mg fasted, FDA breakfast, Continental breakfast
- Where
- United Kingdom
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Richmond Pharmacology Limited
Long QT Syndrome, ADHD
Drug-induced Repolarization ECG Changes
Studies have shown that the risk of developing heart arrhythmias, is increased in patients receiving medication for Attention-deficit hyperactivity disorder (ADHD) and depression.
- Conditions
- Long QT Syndrome, ADHD, Depression, Death
- Trial name
- NCT03642405
- Testing
- Electrocardiogram examination, Echocardiography, Blood Samples
- Where
- Denmark
- Volunteers
- 150 people
- Sponsor
- Copenhagen University Hospital at Herlev
Schizophrenia, Schizoaffective Disorder
Changes in Heart Rhythms Associated With Antipsychotic Drug Treatment
This study is being done to look at the electrical activity of the heart. This study will help decide whether taking recordings for a 24-hour period gives more useful information than recording it for a few seconds in a doctor's…
- Conditions
- Schizophrenia, Schizoaffective Disorder, Bipolar Disorder
- Trial name
- NCT00538122
- Testing
- 24 Holter Monitor Recording
- Where
- United States
- Volunteers
- 12 people
- Sponsor
- Vanderbilt University
Brugada Syndrome
The Conus Brugada Syndrome Study
An observational, analytical, cross sectional study investigating the effects of Conus branch and Right Ventricular (RV) Branch occlusion on surface ECG and intra-cardiac electrograms in patients undergoing percutaneous coronary…
- Trial name
- Conus-BRS (NCT06653504)
- Where
- United Kingdom
- Volunteers
- 3 people
- Sponsor
- Barts & The London NHS Trust
Long QT Syndrome, Wide QRS Complexes
ECG Signal Collection From Long QT Syndrome, Wide QRS Complexes, Heart Failure, and Cardiac Resynchronization Patients
The purpose of this study is to collect surface electrograms from standard and several non-standard configurations in patients with long QT syndrome, heart failure, cardiac resynchronization therapy or wide QRS during a routine…
- Conditions
- Long QT Syndrome, Wide QRS Complexes, Heart Failure, Cardiac Resynchronisation
- Trial name
- NCT00399412
- Testing
- subcutaneous ICD
- Where
- United Kingdom
- Volunteers
- 86 people
- Sponsor
- Boston Scientific Corporation
Long QT Syndrome
Long QT Syndrome Screening in Newborns
The purpose of this project is to test a new, very compact, 12-lead ECG device as a way to detect long QT syndrome (LQTS) in infants. The device -- called QTScreen -- was developed in Phase I of this project.
- Trial name
- NCT02412709
- Testing
- QTScreen ECG Recorder
- Where
- 3 sites in United States
- Volunteers
- 4,000 people, healthy volunteers welcome
- Sponsor
- QT Medical, Inc.
Congenital Disorders
Predictors for Pulmonary Valve Replacement - Anatomic and Hemodynamic Using MRI
Magnetic Resonance Imaging (MRI) is a non-invasive test that can look at the heart without using radiation. An MRI will allow the doctors to look at the heart in order to assess how well the ventricle is pumping, the amount of…
- Trial name
- NCT00489788
- Volunteers
- 101 people, healthy volunteers welcome
- Sponsor
- Emory University
Fabry Disease
Long Duration Holter ECG in Fabry Disease
The main objective is to assess the occurrence of cardiac arrhythmias and conduction disorders during a three-year follow-up using implantable Holter ECG monitoring in 40 patients with Fabry disease.
- Trial name
- NCT04440254
- Testing
- Implantation (subcutaneous) of a marketed miniaturized Holter ECG recording device
- Where
- France
- Volunteers
- 40 people
- Sponsor
- Institut National de la Santé Et de la Recherche Médicale, France
PICC Line Placement, Vessels; Anomaly
Image-Guided Central Catheter Insertion With Concurrent Assessment of Vascular Wall Integrity
The insertion of peripherally inserted central catheters (PICCs) represents a minimally invasive and safe method for establishing long-term central venous access in patients requiring prolonged intravenous therapy, including…
- Trial name
- NCT07466472
- Volunteers
- 80 people
- Sponsor
- University Medical Centre Ljubljana
Wolff-Parkinson-White Syndrome, Sudden Cardiac Death
Stress ECG Test for the Evaluation of the Risk of Sudden Cardiac Death in a Paediatric Cohort With WPW Pattern
Patients with preexcitation are at risk for sudden cardiac death. The pathogenesis is a rapid antegrade conduction of atrial fibrillation over the accessory pathway to the ventricle resulting in ventricular fibrillation.
- Conditions
- Wolff-Parkinson-White Syndrome, Sudden Cardiac Death, Risk Stratification
- Trial name
- NCT03207373
- Testing
- Stress test (ECG)
- Where
- Switzerland
- Volunteers
- 3 people
- Sponsor
- Christian Balmer
ECG Brugada Pattern
Epicardial Ablation in Brugada Syndrome. An Extension Study of 500 BrS.Patients
This study represents an extension of a previous study (NCT02641431) on the acute and long-term benefit of epicardial ablation on elimination of both BrS-ECG pattern and VT/VF inducibility in 500 consecutive BrS patients.
- Trial name
- NCT03106701
- Testing
- Ablation
- Where
- Italy
- Volunteers
- 300 people
- Sponsor
- IRCCS Policlinico S. Donato
Cardiac Amyloidosis
Artificial Intelligence Enhanced ECG to Detect Cardiac Amyloidosis
The purpose of this study is to assess a novel artificial intelligence (AI)-enabled electrocardiogram (ECG)-based screening tool for improving the diagnosis of cardiac amyloidosis (CA).
- Trial name
- NCT05557162
- Testing
- AI ECG Amyloid algorithm
- Where
- 4 sites in United States
- Volunteers
- 20,143 people
- Sponsor
- Mayo Clinic
Atrial Septal Defect
Holter and ECG Changes After Transcatheter Closure Of ASD In Children
Atrial septal defects (ASD) account for 10% of all congenital heart defects [1]. Hemodynamic consequences of an ASD are dilatation of the right atrium and right ventricle (RV) because of the volume overload due to the…
- Trial name
- NCT05540769
- Testing
- catheter guided ASD closure
- Where
- Egypt
- Volunteers
- 50 people
- Sponsor
- Sohag University
Long QT Syndrome
QT Measurement Techniques and Anesthesia Management
In studies, the effects of drugs used for anesthesia and analgesia on QT distance were evaluated in isolation. However, drugs are administered in combination with each other during anesthesia induction.
- Trial name
- NCT04706104
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people
- Sponsor
- Ankara City Hospital Bilkent
Electrocardiogram, Cardiovascular Abnormalities
Evaluation of Clinical Intelligence Support to Reduce Errors in Normal ECGs
This study will evaluate the performance of specialist physicians in interpreting normal electrocardiograms (ECGs) with and without the assistance of an artificial intelligence (AI) neural network.
- Trial name
- PRECISE-ECG (NCT07179185)
- Testing
- AI-Assisted ECG Interpretation (AI-ECG), Specialist ECG Interpretation Without AI
- Volunteers
- 710 people
- Sponsor
- Federal University of Minas Gerais
Transthyretin (TTR) Amyloid Cardiomyopathy
An Observational Study Using Artificial Intelligence (AI) Algorithms on Electrocardiography (ECG), Point-of-care Ultrasound (POCUS), and Transthoracic Echocardiophy (TTE) to Estimate the Under-diagnosis of Transthyretin Amyloid Cardiomyopathy (ATTR-CM) Across a Diverse Range of US Health Systems.
This is a multi-center, observational study with the overall objective to examine the scale of under-diagnosis for transthyretin amyloid cardiomyopathy (ATTR-CM) across a broad range of diverse health systems in the US using a…
- Trial name
- TRACE Network (NCT07062848)
- Testing
- AI Toolkit for ATTR-CM Diagnosis
- Where
- 12 sites in United States
- Volunteers
- 1,500,000 people
- Sponsor
- Yale University
Long QT Syndrome, Sinus Bradycardia
A Study to Evaluate Accuracy and Validity of the Chang Gung ECG Abnormality Detection Software
"Chang Gung ECG Abnormality Detection Software" is a is an artificial intelligence medical signal analysis software that detect whether patients have abnormal ECG signals of 14 diseases by static 12-lead ECG.
- Conditions
- Long QT Syndrome, Sinus Bradycardia, Sinus Tachycardia, Premature Atrial Complexes
- Trial name
- NCT05903313
- Testing
- Chang Gung ECG Abnormality Detection Software
- Where
- Taiwan
- Volunteers
- 4,306 people
- Sponsor
- Chang Gung Memorial Hospital