Clinical trials: Inherited Cardiac Conduction Disorder
Cardiomyopathy, Dilated, Arrhythmia
Mental Stress Reduction in Defibrillator Patients
The purpose of this study is to assess the effectiveness of a 10 week program of Stress Management versus control Patient Education sessions on cardiac responses to mental stress in veterans with Implantable…
- Conditions
- Cardiomyopathy, Dilated, Arrhythmia, Anger, Stress
- Trial name
- NCT00624520
- Testing
- Cognitive Behavioral Stress Management (CBSM), Patient Education
- Where
- 2 sites in United States
- Volunteers
- 129 people
- Sponsor
- US Department of Veterans Affairs
Long QT Syndrome, Abnormalities, Drug-Induced
Reducing the Risk of Drug-Induced QT Interval Lengthening in Women
This research will determine if oral progesterone attenuates drug-induced QT interval lengthening in a) Postmenopausal women 50 years of age or older, and b) Premenopausal women studied during the ovulation phase of the menstrual…
- Trial name
- NCT03834883
- Testing
- Progesterone, Ibutilide
- Where
- United States
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- Indiana University
Atrioventricular Reentrant Tachycardias, Wolff-Parkinson-White (WPW) Syndrome
Comparative Outcomes of Radiofrequency Ablation of Concealed and Manifest Accessory Pathways: a Single Center, Retrospective Observational Study
The aim of this observational, retrospective study is to evaluate, comparatively, procedural outcomes of APs (Accessory pathway) ablation according to the conduction properties (i.e., manifest vs.
- Trial name
- NCT07435181
- Volunteers
- 220 people
- Sponsor
- IRCCS Ospedale San Raffaele
Long QT Syndrome, Connective Tissue Diseases
Novel Form of Acquired Long QT Syndrome
The goal of this study is to determine whether anti-Ro/SSA antibodies are associated with acquired QT prolongation in subjects with connective tissue disease.
- Conditions
- Long QT Syndrome, Connective Tissue Diseases, Rheumatoid Arthritis
- Trial name
- NCT04169100
- Testing
- Prednisone
- Where
- United States
- Volunteers
- 25 people
- Sponsor
- Narrows Institute for Biomedical Research
Prolonged QT Interval
Effects Rapid Atrial Pacing Has on the Electrocardiogram (ECG) in Patients With Dual Chamber Pacemakers
The purpose of this study is to learn what effect rapid atrial pacing (in patients with dual chamber pacemakers) will have on the electrocardiogram including the QT Interval.
- Trial name
- NCT00883610
- Where
- United States
- Volunteers
- 12 people
- Sponsor
- Vanderbilt 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
Brugada Syndrome
Epicardial Ablation in Brugada Syndrome
This prospective study evaluates the methodology and results of epicardial mapping/ablation in a large series of consecutive selected BrS patients and to verify if RFA could normalize the consequences of a genetic disease.
- Trial name
- BRUGADA_I (NCT02641431)
- Testing
- mapping/ablation, Ajmaline, ablation
- Where
- Italy
- Volunteers
- 135 people
- Sponsor
- IRCCS Policlinico S. Donato
Long QT Syndrome
Effect of Grapefruit on QT Interval in Healthy Volunteers and Patients With Congenital Long QT Syndrome
The list of medications that prolong the QT interval and can provoke torsade de pointes keeps expanding. This list includes not only antiarrhythmic drugs, but also medications with no cardiac indications.
- Trial name
- NCT02680080
- Testing
- Moxifloxacin, Grapefruit group
- Where
- Israel
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Tel-Aviv Sourasky Medical Center
Long QT Syndrome
The Canadian National Long QT Syndrome Registry
The NLQTS Research Network team aims to build a Canadian collaboration of dedicated investigators that will create a new paradigm in the modern investigation of patients with LQTS and in the description of a new disease modifier.
- Trial name
- LQTSREG (NCT02425189)
- Where
- Canada
- Volunteers
- 1,051 people
- Sponsor
- Andrew Krahn
Congenital Heart Disease, Bradycardia Sinus
Specialized Pacing for Patients With Congenital Heart Disease
The closed-loop stimulation (CLS) algorithm is a novel sensor-based technology that relies on the change in myocardial systolic impedance for modulation of the heart rate during physical and emotional stress.3 The pacing…
- Trial name
- NCT03361189
- Testing
- Closed loop stimulation, Standard rate response
- Where
- United States
- Volunteers
- 4 people
- Sponsor
- University of California, Los Angeles
Brugada Syndrome (BrS)
Empagliflozin as a Potential Therapeutic Solution for Patients With Brugada Syndrome
The goal of this clinical trial is to learn if Empagliflozin works to treat Brugada syndrome patients by affecting their electrocardiographic (ECG) patterns, and to evaluate its safety.
- Trial name
- NCT07146880
- Testing
- Empagliflozin (EMPA)
- Where
- Taiwan
- Volunteers
- 10 people
- Sponsor
- National Taiwan University Hospital
Left Bundle-Branch Block, Heart Failure
Absolute Coronary Flow in Patients With Heart Failure With Reduced Ejection Fraction and Left Bundle Branch Block With Cardiac Resynchronization Therapy
Cardiac resynchronization therapy (CRT) is an effective therapeutic strategy in patients with symptomatic heart failure (HF) patients with LVEF of ≤35% and left bundle branch block (LBBB).
- Conditions
- Left Bundle-Branch Block, Heart Failure, Cardiac Resynchronization Therapy, Dilated Cardiomyopathy
- Trial name
- FLOW-LBBB (NCT05564689)
- Testing
- Intracoronary flow and pressure
- Where
- Denmark
- Volunteers
- 60 people
- Sponsor
- Ashkan Eftekhari
Anesthesia, Spinal, Sevoflurane
QT Changes in Geriatric Patients: a Comparison of Spinal and General Anesthesia
QT interval, defined as the time between the beginning of the QRS complex and the end of the T wave in electrocardiography (ECG), is an indicator of depolarization and repolarization of the myocardium.11 Prolongation of the heart…
- Conditions
- Anesthesia, Spinal, Sevoflurane, Long QT Syndrome
- Trial name
- NCT06375863
- Testing
- QT and QTc interval
- Where
- Turkey (Türkiye)
- Volunteers
- 58 people
- Sponsor
- Haseki Training and Research Hospital
Long QT Syndrome
Multicenter Evaluation of Children and Young Adults With Genotype Positive Long QT Syndrome
The purpose of the study is to provide comprehensive follow-up in patients with Long QT Syndrome (LQTS) and gain additional information regarding genotype-phenotype correlation and effective management and treatment options.
- Trial name
- NCT01705925
- Where
- United States
- Volunteers
- 92 people
- Sponsor
- Pediatrix
Brugada Syndrome, Arrhythmogenic Right Ventricular Cardiomyopathy
Diagnostic Value and Safety of Flecainide Infusion Test in Brugada Syndrome
The study aims to use flecainide infusion test as diagnostic test to unmask concealed Brugada Syndrome cases. It proposes to assess the safety profile of this test in US patients and its higher sensitivity when compared to…
- Trial name
- NCT02302274
- Testing
- flecainide iv
- Where
- United States
- Volunteers
- 209 people
- Sponsor
- NYU Langone Health
Long QT Syndrome, Brugada Syndrome
Impact on Risk Stratification of Overlap Syndrome Phenotype in Patients With E1784K Mutation in SCN5A
In patients expressing the SCN5A-E1784K mutation (Glu1784Lys), cardiovascular risk is difficult to define as the stratification of these patients is challenging.
- Conditions
- Long QT Syndrome, Brugada Syndrome, Cardiac Conduction System Disease, Arrhythmias, Cardiac
- Trial name
- RISKOVER (NCT05274646)
- Where
- Reunion
- Volunteers
- 47 people
- Sponsor
- Centre Hospitalier Universitaire de la Réunion
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
Prevalence of Congenital Long QT Syndrome and Acquired QT Prolongation in a Hospital Cohort
The Long QT syndrome is associated with potentially life-threatening cardiac arrhythmias as ventricular tachycardia (Torsade de pointes) as well as ventricular fibrillation, and might lead to syncope as well as sudden cardiac…
- Trial name
- NCT03544918
- Where
- Norway
- Volunteers
- 1,536 people
- Sponsor
- Sykehuset Telemark
Spinal Muscular Atrophy, Fragile X Syndrome
Early Check: Expanded Screening in Newborns
Early Check provides voluntary screening of newborns for a selected panel of conditions. The study has three main objectives: 1) develop and implement an approach to identify affected infants, 2) address the impact on infants and…
- Conditions
- Spinal Muscular Atrophy, Fragile X Syndrome, Fragile X - Premutation, Duchenne Muscular Dystrophy
- Trial name
- NCT03655223
- Testing
- Confirmatory Testing
- Where
- United States
- Volunteers
- 30,000 people, healthy volunteers welcome
- Sponsor
- RTI International
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