| Impact on Risk Stratification of Overlap Syndrome Phenotype in Patients With E1784K Mutation in SCN5A (NCT05274646) | Centre Hospitalier Universitaire de la Réunion | 2022-04-05 |
| Cardiac Rehabilitation of Children and Adolescent With Long QT Syndrome (NCT05964322) | University Hospital, Montpellier | 2022-02-02 |
| Building of a Diagnostic/Prognostic Database for Human ERG Variant Effects (NCT06087367) | Nantes University Hospital | 2021-09-20 |
| Novel Approaches for Minimizing Drug-Induced QT Interval Lengthening (NCT04675788) | Indiana University | 2021-09-02 |
| Mutation-specific Therapy for the Long QT Syndrome (NCT04581408) | Istituto Auxologico Italiano | 2021-06-15 |
| LQT and Smartphone/Smartwatch (NCT04728100) | Hospices Civils de Lyon | 2021-03-22 |
| Healthy-related Quality of Life and Physical Activity of Children With Cardiac Malformations (NCT04712136) | University Hospital, Montpellier | 2021-02-01 |
| Evaluation of the Effects of KCNQ1 Mutation on Insulin Tolerance and Obsessive Compulsive Features in Long QT Romano-Ward Syndrome Patients. (NCT04715256) | Biotrial | 2021-01-08 |
| QT Measurement Techniques and Anesthesia Management (NCT04706104) | Ankara City Hospital Bilkent | 2020-10-10 |
| Measurement of the Electromechanical Window to Improve the Diagnosis of Congenital Long QT Syndrome (NCT04328376) | University Hospital, Bordeaux | 2020-08-28 |
| The Effect of Azithromycin Use on Conduction System of Heart in COVID-19 Positive Children (NCT04699097) | Kayseri City Hospital | 2020-07-01 |
| Physical Activity in Children With Inherited Cardiac Diseases (NCT04650009) | University Hospital, Montpellier | 2020-05-01 |
| Electromechanical Profiling of the Long-QT Syndrome (LQTS) (NCT04074122) | Maastricht University Medical Center | 2020-01-01 |
| KCNQ1 Cascade Screening (NCT03783975) | University of Maryland, Baltimore | 2019-03-07 |
| Low Cost QTc Meter for Long QT Syndrome Screening in Primary Care (NCT04441892) | Mayo Clinic | 2019-02-07 |
| The Physiological Effects of Human Ether-a-go-go-Related Gene (hERG)Blockade on Metabolism (NCT03868657) | Signe Torekov | 2019-01-28 |
| Drug-induced Repolarization ECG Changes (NCT03642405) | Copenhagen University Hospital at Herlev | 2018-08-15 |
| Fetal Electrophysiologic Abnormalities in High-Risk Pregnancies Associated With Fetal Demise (NCT03775954) | Medical College of Wisconsin | 2018-07-01 |
| Effect of Grapefruit on QT Interval in Healthy Volunteers and Patients With Congenital Long QT Syndrome (NCT02680080) | Tel-Aviv Sourasky Medical Center | 2016-12-01 |
| Influence of Testosterone Administration on Drug-Induced QT Interval Prolongation and Torsades de Pointes (NCT02513940) | Indiana University | 2016-05-01 |
| Abnormal QT-Response to the Sudden Tachycardia Provoked by Standing in Individuals With Drug-induced Long QT Syndrome (NCT02581241) | Tel-Aviv Sourasky Medical Center | 2016-01-01 |
| Hydroxyzine and Risk of Prolongation of QT Interval (NCT02814981) | University Hospital, Caen | 2015-11-01 |
| Long QT Syndrome Screening in Newborns (NCT02412709) | QT Medical, Inc. | 2015-06-01 |
| Prevalence of Congenital Long QT Syndrome and Acquired QT Prolongation in a Hospital Cohort (NCT03544918) | Sykehuset Telemark | 2015-06-01 |
| Exercise in Genetic Cardiovascular Conditions (NCT02549664) | Yale University | 2015-05-01 |
| Safety of Local Dental Anesthesia in Patients With Cardiac Channelopathies (NCT03182777) | University of Sao Paulo General Hospital | 2015-05-01 |
| Pharmacokinetics of Eleclazine in Adults With Normal and Impaired Renal Function (NCT02441829) | Gilead Sciences | 2015-05-01 |
| Pharmacokinetics of Eleclazine in Adults With Normal and Impaired Hepatic Function (NCT02412098) | Gilead Sciences | 2015-03-19 |
| Effect of Oral GS-6615 on Dofetilide-Induced QT Prolongation, Safety, and Tolerability in Healthy Adults (NCT02365532) | Gilead Sciences | 2015-02-01 |
| Prospective Identification of Long QT Syndrome in Fetal Life (NCT02876380) | University of Colorado, Denver | 2014-11-01 |
| The Canadian National Long QT Syndrome Registry (NCT02425189) | Andrew Krahn | 2014-11-01 |
| Determine the Incidence of Long QT Amongst a Large Cohort of Subjects Diagnosed With Unilateral or Bilateral Sensorineural Hearing Loss. (NCT02082431) | Pediatrix | 2014-08-01 |
| Fetal and Neonatal Magnetophysiology (NCT01903564) | University of Wisconsin, Madison | 2014-03-01 |
| Genetics of QT Prolongation With Antiarrhythmics (NCT02439658) | Massachusetts General Hospital | 2014-01-01 |
| A Registry to Determine the Clinical and Genetic Risk Factors for Torsade De Pointes (NCT02439645) | Massachusetts General Hospital | 2013-10-01 |
| Study of the Effect of GS-6615 in Subjects With LQT-3 (NCT01849003) | Gilead Sciences | 2013-05-01 |
| Long-term Efficacy Study of Sodium Channel Blocker in LQT3 Patients (NCT01648205) | University of Rochester | 2012-09-01 |
| Multicenter Evaluation of Children and Young Adults With Genotype Positive Long QT Syndrome (NCT01705925) | Pediatrix | 2012-03-01 |
| Novel Form of Acquired Long QT Syndrome (NCT04169100) | Narrows Institute for Biomedical Research | 2011-09-28 |
| Metabolism of Patients With Genetically Caused Cardiac Arrhythmia (NCT02775513) | University of Copenhagen | 2010-09-01 |
| Effect of Beta-blocker Therapy on QTc Response in Exercise and Recovery in Normal Subjects (NCT00588965) | MetroHealth Medical Center | 2007-08-01 |
| The Long QT Syndrome in Pregnancy (NCT00488254) | University of British Columbia | 2007-06-01 |
| ECG Signal Collection From Long QT Syndrome, Wide QRS Complexes, Heart Failure, and Cardiac Resynchronization Patients (NCT00399412) | Boston Scientific Corporation | 2006-11-01 |
| Pediatric Lead Extractability and Survival Evaluation (PLEASE) (NCT00335036) | Charles Berul | 2006-06-01 |
| Study Evaluating the Effects of Multiple Oral Doses of ERB-041 on Cardiac Repolarization in Healthy Subjects (NCT00316459) | Wyeth is now a wholly owned subsidiary of Pfizer | 2006-05-01 |
| Registry of Unexplained Cardiac Arrest (NCT00292032) | University of British Columbia | 2004-05-01 |
| Molecular Genetic Screening and Identification of Congenital Arrhythmogenic Diseases (NCT00221832) | Heidelberg University | 2003-10-01 |
| Epidemiology of Long QTand Asian Sudden Death in Sleep (NCT00005367) | Utah State University | 1993-02-01 |
| Linkage Study of Long QT Syndrome In An Amish Kindred (NCT00005250) | National Heart, Lung, and Blood Institute (NHLBI) | 1990-01-01 |
| Long QT Syndrome-Population Genetics and Cardiac Studies (NCT00005176) | University of Rochester | 1985-08-01 |