Clinical trials: Cardiac Conduction and Repolarization
Long QT Syndrome, Cardiac Repolarization
Effect of Beta-blocker Therapy on QTc Response in Exercise and Recovery in Normal Subjects
Background. In congenital long QT syndrome type 1 (LQT1), episodes of ventricular tachycardia are usually triggered by exercise and can be prevented in most patients by beta-blocker therapy.
- Trial name
- NCT00588965
- Testing
- Propranolol LA
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- MetroHealth Medical Center
Ventricular Tachycardia Ablation
Repolarization and Activation Mapping in Ventricular Tachycardia Ablation: the REDEMPTION Study
The aim of this study is to prospectively evaluate a novel sinus rhythm mapping strategy for ventricular tachycardia (VT) ablation based on combined ventricular repolarization and activation (depolarization) mapping…
- Trial name
- REDEMPTION (NCT06765746)
- Testing
- Ventricular tachycardia ablation
- Volunteers
- 40 people
- Sponsor
- Universitair Ziekenhuis Brussel
Ventricular Tachycardia
Ventricular Tachycardia Mechanisms
The purpose of this study is to understand why certain hearts have ventricular arrhythmias and help identify areas of the heart that cause arrhythmias.
- Trial name
- NCT05478213
- Testing
- Monophasic Action Potential (MAP) Catheter
- Where
- 3 sites in United States
- Volunteers
- 10 people
- Sponsor
- Emory University
Premature Ovarian Insufficiency
Ventricular Repolarization in Patients With Premature Ovarian Insufficiency (QTIOP)
Ventricular repolarization, measured by corrected QT interval (QTc), is influenced by sex hormones. A QTc above 460msec predisposes to the risk of "torsades-de-pointes"(TdP).
- Trial name
- QTIOP (NCT04167033)
- Testing
- Hormone replacement therapy:effect on ventricular repolarization, ECG
- Where
- 3 sites in France
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Assistance Publique - Hôpitaux de Paris
Fatigue, Tachycardia
Effect of Caffeine on Heart Function
The primary objective of this study is to assess the effect of an energy drink on ventricular repolarization as measured by the interval between the cardiac Q wave and the cardiac T wave (QT interval)obtained from the body…
- Trial name
- NCT02401776
- Testing
- Monster Energy Drink, Coffee
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Texas at Austin
Infection, Human Immunodeficiency Virus
Study to Evaluate the Effect of GSK1265744 on Cardiac Conduction
This study is being conducted to comply with the Food and Drug Administration (FDA) recommendation that all new non anti-arrhythmic drugs be assessed for cardiac repolarization effects through electrocardiographic evaluation.
- Trial name
- NCT02027454
- Testing
- GSK1265744, Moxifloxacin
- Where
- United States
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- ViiV Healthcare
Human Experimentation (Human Volunteers)
Evaluation of Possible Effects on the QT/ QTc Interval of Rupatadine in Healthy Volunteers
This phase I trial will evaluate the effects of rupatadine, at a dose of 10 mg OD (authorised and marketed dose) and the 100mg/day (supratherapeutic dose) on the ECG parameters with a special focus on its effect on cardiac…
- Trial name
- NCT00199225
- Testing
- Rupatadine, moxifloxacin, Continous electrocardiographic register
- Where
- Spain
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- J. Uriach and Company
Lupus Erythematosus, Systemic, Atrioventricular Block
Systemic Lupus Erythematous and Heart Conduction Disorders
Connective tissue diseases have been related to heart conduction disorders. The anti-Ro/SSA antibodies are thought to have a pathogenic role, and they most prevalent in systemic lupus erythematous (SLE).
- Conditions
- Lupus Erythematosus, Systemic, Atrioventricular Block, Sudden Death
- Trial name
- NCT02162992
- Testing
- No intervention
- Where
- Spain
- Volunteers
- 151 people
- Sponsor
- Germans Trias i Pujol Hospital
Functional Dyspepsia
A Study to Evaluate the Effect of Repeat Oral Doses of YM443 on Cardiac Repolarization in Healthy Adults
This study evaluates whether YM443 causes any changes in the electrocardiogram of healthy adults.
- Trial name
- NCT00850746
- Testing
- YM443, Moxifloxacin
- Where
- United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Astellas Pharma Inc
Azithromycin Adverse Reaction, Covid19
The Effect of Azithromycin Use on Conduction System of Heart in COVID-19 Positive Children
Azithromycin (AZ) is used in the pediatric group in COVID-19 diseas. It has been reported to cause prolongation in the QT interval in adult age group.
- Conditions
- Azithromycin Adverse Reaction, Covid19, Long QT Syndrome
- Trial name
- NCT04699097
- Testing
- Azithromycin
- Where
- Turkey (Türkiye)
- Volunteers
- 105 people
- Sponsor
- Kayseri City Hospital
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
Brugada Syndrome, Early Repolarization Syndrome
VF Mapping in Brugada and Early Repolarization Syndromes
To determine the values and limitations of ECGI in guiding ablation and risk stratification in patients with BrS and Early Repolarization.
- Trial name
- NCT03764592
- Testing
- radiofrequency ablation
- Where
- 2 sites in Thailand
- Volunteers
- 50 people
- Sponsor
- Pacific Rim Electrophysiology Research Institute
Torsades de Pointes
A Study to Evaluate How VI-0521 Affect Cardiac Repolarization in Healthy Male and Female Volunteers
Determine whether VI-0521 has an effect on the electrical activity of the heart in healthy subjects. Find out how much VI-0521 is in the blood and any potential side effects on ECG's of healthy subjects after taking the study…
- Trial name
- TQT (NCT00839891)
- Testing
- VI-0521
- Where
- United States
- Volunteers
- 112 people, healthy volunteers welcome
- Sponsor
- VIVUS LLC
Atrial Fibrillation, Ventricular Fibrillation
Evaluation of Depolarization and Repolarisation Activity During Cardiac Arrhythmia Using a Novel Monophasic Action Potential Catheter
Monophasic action potential (MAP) recording plays an important role in a more direct view of human myocardial electrophysiology under both physiological and pathological conditions.
- Conditions
- Atrial Fibrillation, Ventricular Fibrillation, Junctional Tachycardia
- Trial name
- EvaMAP (NCT01254474)
- Testing
- Cardiac chambers mapping with MAP 4
- Where
- France
- Volunteers
- 42 people
- Sponsor
- University Hospital, Bordeaux
Inherited Cardiac Arrythmias, Long QT Syndrome (LQTS)
Derivation of Human Induced Pluripotent Stem (iPS) Cells to Heritable Cardiac Arrhythmias
Human induced pluripotent stem cells (hiPSCs) have driven a paradigm shift in the modeling of human disease; the ability to reprogram patient-specific cells holds the promise of an enhanced understanding of disease mechanisms and…
- Conditions
- Inherited Cardiac Arrythmias, Long QT Syndrome (LQTS), Brugada Syndrome (BrS), Catecholaminergic Polymorphic Ventricular Tachycardia (CPVT)
- Trial name
- NCT02413450
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins University
Cardiac Conduction and Repolarization
Thorough QT/QTc (Corrected QT Interval) Study to Evaluate the Effect of Custirsen on Cardiac Repolarization
This is a 3-arm, parallel-group, active- and placebo-controlled, double-blind, randomized study, to compare treatment with intravenous custirsen at 640 mg (highest intended therapeutic dose) with placebo.
- Trial name
- NCT01874561
- Testing
- Custirsen, Moxifloxacin
- Where
- United States
- Volunteers
- 155 people, healthy volunteers welcome
- Sponsor
- Achieve Life Sciences
Pregnancy, Long QT Syndrome
Ventricular Repolarization During the Pregnancy-to-Postpartum Transition (QuTe)
Pregnancy and the postpartum period are accompanied by marked changes in heart rate, circulating hormones, and electrolyte balance that may influence ventricular repolarization.
- Trial name
- QuTe (NCT02931695)
- Testing
- Evaluation of QT interval duration, Circulating sex hormones levels sample
- Where
- France
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- French Cardiology Society
Infections, Bacterial
A Study to Evaluate the Effect of GSK1322322 on Cardiac Conduction as Assessed by 12-lead Electrocardiogram in Healthy Volunteers
This is a randomized, partially-blinded, placebo and moxifloxacin-controlled, single dose, 4-period, balanced crossover study. The primary objective of this study is to separately assess the effects of a therapeutic and…
- Trial name
- NCT01803399
- Testing
- GSK1322322 1200 mg, GSK1322322 3000 mg, Moxifloxacin
- Volunteers
- healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Cardiac Arrest, Long QT Syndrome
Registry of Unexplained Cardiac Arrest
The CASPER will collect systematic clinical assessments of patients and families within the multicenter Canadian Inherited Heart Rhythm Research Network.
- Conditions
- Cardiac Arrest, Long QT Syndrome, Brugada Syndrome, Catecholaminergi Polymorphic Ventricular Tachycardia
- Trial name
- NCT00292032
- Where
- Canada
- Volunteers
- 1,529 people
- Sponsor
- University of British Columbia
Restless Legs Syndrome
A Study to Evaluate the Effect of Gabapentin on Cardiac Repolarization in Healthy Volunteers
This will be a randomized, double-blind, placebo- controlled cross-over study to investigate the effect of GEn on cardiac repolarisation parameters compared with placebo and a positive control, moxifloxacin.
- Trial name
- NCT01516372
- Testing
- GEn 1200mg, Gen 6000 mg, Moxifloxacin
- Where
- United States
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- XenoPort, Inc.