Clinical trials: Long QT Syndrome
Long QT Syndrome, Abnormalities, Drug-Induced
Novel Approaches for Minimizing Drug-Induced QT Interval Lengthening
This research will determine if: 1) Oral progesterone attenuates drug-induced QT interval, J-Tpeak and Tpeak-Tend lengthening in postmenopausal women 50 years of age or older, and 2) Transdermal testosterone attenuates…
- Trial name
- NCT04675788
- Testing
- Progesterone, Ibutilide, Testosterone
- Where
- 3 sites in United States
- Volunteers
- 73 people, healthy volunteers welcome
- Sponsor
- Indiana University
Long QT Syndrome Type 3, Long QT Syndrome 2
Observational Study to Describe Health-Related Quality of Life and Measure Disease Burden Among Patients With Long QT Syndrome Types (LQTS) 2 and 3
This is a cross-sectional observational study designed to assess the disease burden and quality of life in individuals with LQTS 2 and 3.
- Trial name
- NCT07075445
- Where
- United States
- Volunteers
- 200 people
- Sponsor
- Thryv Therapeutics, Inc.
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
ICSI, IVF
Dual Trigger VS HCG Trigger for Final Oocyte Maturation in Normal Responders
To compare the embryological and reproductive outcomes of dual trigger versus conventional hCG trigger for final oocyte maturation in normal responder patients undergoing ICSI cycles.
- Conditions
- ICSI, IVF, Normal Responders, Infertility Assisted Reproductive Technology
- Trial name
- DT-HCG-IVF (NCT07861399)
- Testing
- Dual trigger (human chorionic gonadotropin plus GnRH-agonist), hCG trigger
- Where
- Egypt
- Volunteers
- 100 people
- Sponsor
- Al-Azhar University
Ivf
Opt-IVF for Personalized Medicine for Normal Responders
A clinical trial will determine the effectiveness of the Opt-IVF decision-support tool in generating personalized, optimal drug-dosage profiles for each patient in the United States.
- Trial name
- NCT07856082
- Testing
- Opt-IVF, control
- Where
- United States
- Volunteers
- 100 people
- Sponsor
- Urmila DIwekar
Long QT Syndrome (LQTS) 2
Evaluation of the Efficacy and Safety of THRV-1268 in Participants With Long QT Syndrome Type 2 (LQTS2) and Type 3 (LQTS3)
The goal of this clinical trial is to learn whether the study drug THRV-1268 can safely and effectively shorten the QT interval in people diagnosed with Long QT Syndrome Type 2 (LQTS 2) and Long QT Syndrome Type 3 (LQTS 3).
- Trial name
- Wave II (NCT07277582)
- Testing
- baseline lead-in, THRV-1268
- Where
- 9 sites in United States
- Volunteers
- 84 people
- Sponsor
- Thryv Therapeutics, Inc.
Long QT Syndrome, Catecholaminergic Polymorphic Ventricular Tachycardia Type 1
Evaluation of Exercise Testing and Physical Activity in Children and Adolescents Living With Inherited Arrhythmias
The goal of this observational study is to evaluate exercise testing and daily physical activity in children and adolescents who are diagnosed with an inherited arrhythmia.
- Conditions
- Long QT Syndrome, Catecholaminergic Polymorphic Ventricular Tachycardia Type 1, Catecholaminergic Polymorphic Ventricular Tachycardia Type 2
- Trial name
- ACTIVELY (NCT06661278)
- Testing
- Exercise tolerance test, Physical activity & heart rate monitoring
- Where
- 2 sites in United Kingdom
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Royal Brompton & Harefield NHS Foundation Trust
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
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
Long QT Syndrome, Brugada Syndrome
Healthy-related Quality of Life and Physical Activity of Children With Cardiac Malformations
The QUALIMYORYTHM trial is a multicentre controlled study, aiming to assess health-related quality of life (HRQoL) of 107 children aged 6 to 18 years old with inherited cardiac arrhythmia (long QT syndrome, Brugada syndrome…
- Conditions
- Long QT Syndrome, Brugada Syndrome, Catecholaminergic Polymorphic Ventricular Tachycardia, Arrhythmogenic Right Ventricular Dysplasia
- Trial name
- QUALIMYORYTHM (NCT04712136)
- Testing
- MRI
- Where
- France
- Volunteers
- 214 people, healthy volunteers welcome
- Sponsor
- University Hospital, Montpellier
Arrhythmia, Long QT Syndrome
AI-powered ECG Analysis for Deadly Arrhythmias and ICI Myocarditis
ELDORA is a non-interventional observational data-science study aiming to develop and validate clinical-grade artificial intelligence tools applied to electrocardiogram (ECG) data.
- Conditions
- Arrhythmia, Long QT Syndrome, Immune Checkpoint Inhibitor-Related Myocarditis
- Trial name
- ELDORA (NCT07644715)
- Where
- France
- Volunteers
- 127,000 people, healthy volunteers welcome
- Sponsor
- Groupe Hospitalier Pitie-Salpetriere
Long QT Syndrome
Wearable Devices for Patient Monitoring in Long QT Syndrome
The main research question of this study is whether wearable devices have utility in monitoring patients with Long QT syndrome.
- Trial name
- NCT06887387
- Testing
- Wearable device
- Where
- United Kingdom
- Volunteers
- 80 people
- Sponsor
- Queen Mary University of London
Cardiomyopathy, Hypertrophic, Cardiomyopathy, Dilated
National Network for Cardiovascular Genomics: Advancing Cardiovascular Healthcare for Hereditary Diseases in Brazil's Unified Health System Through a Multicenter Registry
The goal of this observational study is to develop a registry of Brazilian patients with hereditary cardiovascular diseases, combining clinical and genomic data.
- Conditions
- Cardiomyopathy, Hypertrophic, Cardiomyopathy, Dilated, Cardiomyopathy Restrictive, Arrhythmogenic Right Ventricular Dysplasia
- Trial name
- RENOMICA-Hcor (NCT06546137)
- Testing
- whole genome sequencing
- Where
- 27 sites in Brazil
- Volunteers
- 1,211 people
- Sponsor
- Hospital do Coracao
Breath-holding Spell
Breath-holding Spells and Its Management Study
The goal of this prospective population-based study is to evaluate the new disease description and management guidelines for breath-holding spells in children (Hellström Schmidt et al, Acta Paediatrica 2024) below the age of 5…
- Trial name
- BAM (NCT06628271)
- Testing
- Guidelines
- Where
- 12 sites in Sweden
- Volunteers
- 120 people
- Sponsor
- Region Skane
Long QT Syndrome, Familial Hypercholesterolemia
Comparing Direct vs Indirect Methods for Cascade Screening
An important aspect of successful genomic medicine implementation is developing effective approaches for screening at-risk family members after probands are identified, also known as cascade screening.
- Conditions
- Long QT Syndrome, Familial Hypercholesterolemia, Ethics, Genetic Testing
- Trial name
- NCT05348564
- Testing
- Direct contact of family members for cascade screening of relevant variants
- Where
- United States
- Volunteers
- 200 people
- Sponsor
- University of Maryland, Baltimore
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
Ventricular Tachycardia, Ventricular Fibrillation
Pediatric Lead Extractability and Survival Evaluation (PLEASE)
This is a randomized, prospective clinical trial comparing 2 different types of implantable cardioverter defibrillator (ICD) leads in children and patients with congenital heart disease.
- Conditions
- Ventricular Tachycardia, Ventricular Fibrillation, Cardiomyopathy, Long QT Syndrome
- Trial name
- NCT00335036
- Testing
- ICD lead implant, Thin leads
- Where
- United States
- Volunteers
- 748 people
- Sponsor
- Charles Berul
High Risk Pregnancy, Congenital Heart Disease
Fetal Electrophysiologic Abnormalities in High-Risk Pregnancies Associated With Fetal Demise
Each year world-wide, 2.5 million fetuses die unexpectedly in the last half of pregnancy, 25,000 in the United States, making fetal demise ten-times more common than Sudden Infant Death Syndrome.
- Conditions
- High Risk Pregnancy, Congenital Heart Disease, Fetal Hydrops, Twin Monochorionic Monoamniotic Placenta
- Trial name
- NCT03775954
- Testing
- Fetal Magnetocardiogram and Neonatal Electrocardiogram, Substudy only: Maternal/Infant Pharmacogenomic assessment postnatally
- Where
- 2 sites in United States
- Volunteers
- 30 people
- Sponsor
- Medical College of Wisconsin
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
Acquired Long QT, Ventricular Arrhythmias
Do QT-Prolonging Drugs Cause Major Adverse Cardiac Events in Hospitalized Adults?
There are 28 non-cardiology medications from multiple families costing more than $13 billion annually in Canada, categorized as 'Known' QT-prolonging medications (QTPmeds) based on very low levels of evidence.
- Conditions
- Acquired Long QT, Ventricular Arrhythmias, Torsades de Pointes, Syncope
- Trial name
- QTP-MACE (NCT07374263)
- Where
- 2 sites in Canada
- Volunteers
- 990,000 people
- Sponsor
- St. Joseph's Healthcare Hamilton