Clinical trials: QT-prolongation
Long Qt Syndrome 1-2, Sudden Cardiac Death
Exploring Mechanisms and Morphology of QT Interval Prolongation
The projects will try and optimise the risk stratification for patients with Long QT syndrome by investigating how the exposure of physical and acoustic stress will affect the QT-dynamics and if beta blockers protect against…
- Trial name
- TriQarr (NCT03291145)
- Testing
- Beta Blockers, Spironolactone
- Where
- Denmark
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- Herlev and Gentofte Hospital
Hypertrophic Cardiomyopathy, Long QT Syndrome
Exercise in Genetic Cardiovascular Conditions
The goal is to determine how lifestyle and exercise impact the well-being of individuals with hypertrophic cardiomyopathy (HCM) and long QT syndrome (LQTS).
- Trial name
- LIVE-HCM/LQT (NCT02549664)
- Where
- 36 sites in United States, Australia and 3 more
- Volunteers
- 4,299 people
- Sponsor
- Yale University
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
Long QT Syndrome
Measurement of the Electromechanical Window to Improve the Diagnosis of Congenital Long QT Syndrome
The goal of this research is to prospectively evaluate the performance of the electromechanical window according to a phonographic method, as a mean of diagnosis of long QT syndrome, and to compare its performance with routine…
- Trial name
- FEMQT (NCT04328376)
- Testing
- ECG coupled to phonocardiography
- Where
- 4 sites in France
- Volunteers
- 224 people
- Sponsor
- University Hospital, Bordeaux
Fetal Arrhythmia, Abnormality in Fetal Heart Rate or Rhythm
Fetal and Neonatal Magnetophysiology
Fetal research and clinical practice has been hampered by a lack of suitable investigational techniques. Currently, ultrasound is the only widely used method of studying fetal anatomy and physiology, but it has significant…
- Conditions
- Fetal Arrhythmia, Abnormality in Fetal Heart Rate or Rhythm, Long QT Syndrome
- Trial name
- NCT01903564
- Testing
- magnetocardiography, postnatal ECG, fetal echocardiography
- Where
- United States
- Volunteers
- 39 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
4-electrode Tablet-based Electrocardiogram (ECG) System, Electrical Activity of the Heart
4-electrode ECG (DigitalCardio®) vs Standard 10-electrode ECG: Evaluating Ease of Use and Recording Quality
The goal of this clinical trial is to compare the time required to record a complete Electrocardiogram (ECG) trace using the DigitalCardio (CardioSecur®) tablet device versus a standard 12-lead ECG device in eligible patients.
- Conditions
- 4-electrode Tablet-based Electrocardiogram (ECG) System, Electrical Activity of the Heart, Atrial or Ventricular Arrhythmias, Intracardiac Conduction Abnormalities
- Trial name
- FAST-ECG (NCT07732283)
- Testing
- standard 10-electrode ECG acquisition, 4-electrode DigitalCardio acquisition
- Where
- 2 sites in France
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Clinique Bizet
Sensorineural Hearing Loss, Long QT Syndrome
Determine the Incidence of Long QT Amongst a Large Cohort of Subjects Diagnosed With Unilateral or Bilateral Sensorineural Hearing Loss.
The purpose of this study is to determine the true incidence of long QT (LQT) amongst a large cohort of subjects diagnosed with unilateral (right/left) or bilateral sensorineural hearing loss.
- Trial name
- NCT02082431
- Where
- 12 sites in United States
- Volunteers
- 600 people, healthy volunteers welcome
- Sponsor
- Pediatrix
Long QT Syndrome
Influence of Testosterone Administration on Drug-Induced QT Interval Prolongation and Torsades de Pointes
Torsades de pointes (TdP) is a potentially fatal ventricular arrhythmia associated with corrected QT (QTc) interval prolongation.
- Trial name
- NCT02513940
- Testing
- Testosterone, Progesterone, Ibutilide
- Where
- United States
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Indiana University
Prolonged QT Interval in EKG and Sudden Death
Influence of Progesterone Administration on Drug-Induced QT Interval Lengthening
Female sex is an independent risk factor for the potentially fatal drug-induced arrhythmia (irregular heartbeat) known as torsades de pointes (TdP), which is associated with prolongation of the corrected QT (QTc) interval on the…
- Trial name
- NCT01929083
- Testing
- Progesterone, Ibutilide
- Where
- 2 sites in United States
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- Indiana University
Polycystic Ovary Syndrome
Effects of Simvastatin on Biochemical Parameters and Outcome of IVF-ICSI in Pcos Patients
The purpose of this study is to determine whether simvastatin is effective in the improvement of IVF-ICSI outcome in Pcos patients.
- Trial name
- NCT00575601
- Testing
- SIMVASTATIN
- Where
- Iran
- Volunteers
- 120 people
- Sponsor
- Tehran University of Medical Sciences
Long QT Syndrome
KCNQ1 Cascade Screening
The objectives of the protocol are to: (1) evaluate the uptake of cascade screening and preventative therapies after the implementation of a simplified screening process and (2) assess proband and family member perspectives about…
- Trial name
- NCT03783975
- Testing
- Simplified Cascade Screening
- Where
- United States
- Volunteers
- 131 people, healthy volunteers welcome
- Sponsor
- University of Maryland, Baltimore
Infertility, Female
Descriptive Analysis of Serum Immunological Markers During an Euploid Frozen Embryo Transfer in a Natural Cycle.
To describe the peripheral serum levels of the anti-inflammatory cytokines IL-4 (Interleukin-4), IL-10 (Interleukin-10), TGF-ß1 (Transforming Growth Factor beta1), the pro-inflammatory cytokines IL-17 (Interleukin-17), IFγ…
- Trial name
- NCT05473273
- Testing
- Endometrin 100Mg Vaginal Insert, Estradiol Valerate
- Where
- United Arab Emirates
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- ART Fertility Clinics LLC
Healthy, Long QT Syndrome
Study Evaluating the Effects of Multiple Oral Doses of ERB-041 on Cardiac Repolarization in Healthy Subjects
To assess the effect of ERB-041 after multiple oral doses on cardiac repolarization as assessed by the QTc interval.
- Trial name
- NCT00316459
- Testing
- ERB-041
- Where
- United States
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Wyeth is now a wholly owned subsidiary of Pfizer
Solid Tumors
A Study to Investigate the Effect of Single Dose of AZD6094 (600 mg) on Cardiac Repolarization in Healthy Volunteers
This is a randomized, placebo-controlled, double-blind, 3-way crossover phase I study being conducted on healthy volunteers to investigate the effect of single dose of AZD6094 (600 mg) on cardiac repolarization under…
- Trial name
- NCT03258515
- Testing
- AZD6094 200 mg, Moxifloxacin
- Where
- United States
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- AstraZeneca
Infertility, Female, Infertility, Male
Embryo Assessment Utilizing Timelapse Imaging in Conjunction With Preimplantation Genetic Testing for Aneuploidy With Next Generation Sequencing
The goal of this observational study is to discern if there is a relationship between timelapse imagery of human oocytes/embryos and PGT results.
- Conditions
- Infertility, Female, Infertility, Male, Infertility, IVF
- Trial name
- NCT06419127
- Testing
- Timelapse incubation and PGT
- Where
- United States
- Volunteers
- 2,000 people
- Sponsor
- Gattaca Genomics
Long QT Syndrome
Abnormal QT-Response to the Sudden Tachycardia Provoked by Standing in Individuals With Drug-induced Long QT Syndrome
The drug-induced long QT syndrome (diLQTS) describes a clinical entity in which administration of a drug produces marked prolongation of the QT interval of the electrocardiogram, associated with the development of a polymorphic…
- Trial name
- NCT02581241
- Testing
- tilt table
- Where
- Israel
- Volunteers
- 5 people
- Sponsor
- Tel-Aviv Sourasky Medical Center
Long QT Syndrome, Channelopathies
Physical Activity and Functional Capacity in Patients With Congenital Long QT Syndrome
Patients with congenital long QT syndrome (LQTS) have traditionally been discouraged from physical activity and competitive sports, although the rate of exercise-related arrhythmic events is considered low.
- Trial name
- CANMOVE (NCT07862491)
- Testing
- Questionnaires, Cardiopulmonary exercise testing, 24-hour Holter monitoring
- Where
- Brazil
- Volunteers
- 120 people
- Sponsor
- University of Sao Paulo
Coronary Artery Disease, Cardiac Autonomic Neuropathy
IMPACT OF CARDIAC AUTONOMIC NEUROPATHY ON QT AND QTC INTERVAL
This prospective observational cohort study evaluated the effect of cardiac autonomic neuropathy (CAN) on perioperative ventricular repolarization, specifically QT and corrected QT (QTc) intervals, in patients undergoing elective…
- Conditions
- Coronary Artery Disease, Cardiac Autonomic Neuropathy, QT Interval Prolongation
- Trial name
- QT interval (NCT07684768)
- Where
- 2 sites in Turkey (Türkiye)
- Volunteers
- 60 people
- Sponsor
- Haseki Training and Research Hospital
IVF, Infertility
Improvement of Fertilization Rate and Embryo Quality by Treating Calcium Ionophore in IVF Patients: a Sibling Oocyte Control Study
GM508 CultActive is a bicarbonate buffered reagent and ready-to-use designed to investigate oocytes of patients with failed fertilization after previous Intracytoplasmatic Sperm Injection cycles.
- Conditions
- IVF, Infertility, Artificial Oocyte Activation
- Trial name
- GM508 in IVF (NCT05722067)
- Testing
- calcium ionophore
- Where
- Taiwan
- Volunteers
- 68 people
- Sponsor
- Chang Gung Memorial Hospital
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