23 studies found for:    "Andersen-Tawil syndrome" OR "Long QT Syndrome"
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Rank Status Study
1 Completed Characteristics of Andersen-Tawil Syndrome
Conditions: Andersen-Tawil Syndrome;   Andersen Syndrome
Intervention:
2 Completed The Long QT Syndrome in Pregnancy
Condition: Long QT Syndrome
Intervention:
3 Terminated Effect of Potassium and Acetazolamide on People With Andersen-Tawil Syndrome
Condition: Andersen-Tawil Syndrome
Interventions: Dietary Supplement: Potassium;   Drug: Acetazolamide
4 Completed Long QT Syndrome-Population Genetics and Cardiac Studies
Conditions: Cardiovascular Diseases;   Heart Diseases;   Ventricular Arrhythmia;   Long QT Syndrome
Intervention:
5 Recruiting Multicenter Evaluation of Children and Young Adults With Genotype Positive Long QT Syndrome
Condition: Long QT Syndrome
Intervention:
6 Recruiting Long Term Prophylactic Therapy of Congenital Long QT Syndrome Type III (LQT3) With Ranolazine
Condition: Long QT Syndrome Type 3
Intervention: Drug: Ranolazine
7 Completed Linkage Study of Long QT Syndrome In An Amish Kindred
Conditions: Heart Diseases;   Cardiovascular Diseases;   Tachycardia, Ventricular;   Ventricular Fibrillation;   Long QT Syndrome
Intervention:
8 Completed ECG Signal Collection From Long QT Syndrome, Wide QRS Complexes, Heart Failure, and Cardiac Resynchronization Patients
Conditions: Long QT Syndrome;   Wide QRS Complexes;   Heart Failure;   Cardiac Resynchronisation
Intervention: Device: subcutaneous ICD
9 Not yet recruiting Long QT and Hearing Loss Registry
Conditions: Sensorineural Hearing Loss;   Long QT Syndrome
Intervention:
10 Unknown  Molecular Genetic Screening and Identification of Congenital Arrhythmogenic Diseases
Conditions: Long QT Syndrome;   Hypertrophic Cardiomyopathy;   Arrhythmogenic Right Ventricular Dysplasia
Intervention:
11 Recruiting Study of the Effect of GS-6615 in Subjects With LQT-3
Condition: Long QT Syndrome
Intervention: Drug: GS-6615
12 Suspended Fetal and Neonatal Magnetophysiology
Conditions: Fetal Arrhythmia;   Abnormality in Fetal Heart Rate or Rhythm;   Long QT Syndrome
Interventions: Device: magnetocardiography;   Device: postnatal ECG;   Device: fetal echocardiography
13 Recruiting Comparison Between Epinephrine and Exercise Test in QT Long Syndrome Patients
Condition: Long QT Syndrome Type 1 or 2
Interventions: Other: exercise test;   Other: Epinephrine test
14 Unknown  Registry of Unexplained Cardiac Arrest
Conditions: Cardiac Arrest;   Long QT Syndrome;   Brugada Syndrome;   Catecholamine Sensitive Polymorphic Ventricular Tachycardia;   Idiopathic Ventricular Fibrillation;   Early Repolarization Syndrome
Intervention:
15 Completed Epidemiology of Long QTand Asian Sudden Death in Sleep
Conditions: Cardiovascular Diseases;   Heart Diseases;   Arrhythmia;   Death, Sudden, Cardiac;   Long QT Syndrome
Intervention:
16 Recruiting Efficacy Study of Sodium Channel Blocker in LQT3 Patients
Condition: Long QT Syndrome
Interventions: Drug: Placebo;   Drug: Ranolazine
17 Completed
Has Results
Effect of Beta-blocker Therapy on QTc Response in Exercise and Recovery in Normal Subjects
Conditions: Long QT Syndrome;   Cardiac Repolarization
Interventions: Drug: Placebo;   Drug: Propranolol LA
18 Terminated Pediatric Lead Extractability and Survival Evaluation (PLEASE)
Conditions: Ventricular Tachycardia;   Ventricular Fibrillation;   Cardiomyopathy;   Long QT Syndrome;   Congenital Heart Disease
Intervention: Device: ICD lead implant
19 Completed Study Evaluating the Effects of Multiple Oral Doses of ERB-041 on Cardiac Repolarization in Healthy Subjects
Conditions: Healthy;   Long QT Syndrome
Intervention: Drug: ERB-041
20 Not yet recruiting Worm Study: Modifier Genes in Sudden Cardiac Death
Conditions: Brugada Syndrome;   Long QT Syndrome 3
Interventions: Procedure: Dermal biopsy;   Drug: Ajmaline challenge;   Genetic: Whole-exome sequencing

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Indicates status has not been verified in more than two years