Long QT Syndrome Clinical Trials

11 recruitingLast updated: June 18, 2026

There are 11 actively recruiting long qt syndrome clinical trials across 5 countries. Studies span Not Applicable, Phase 2, Phase 3. Top locations include Paris, France, London, United Kingdom, Boston, Massachusetts, United States. Updated daily from ClinicalTrials.gov.


Long QT Syndrome Trials at a Glance

11 actively recruiting trials for long qt syndrome are listed on ClinicalTrialsFinder across 6 cities in 5 countries. The largest study group is Not Applicable with 2 trials, with the heaviest enrollment activity in Paris, London, and Boston. Lead sponsors running long qt syndrome studies include Thryv Therapeutics, Inc., Medical College of Wisconsin, and Hospital do Coracao.

Browse long qt syndrome trials by phase

Treatments under study

About Long QT Syndrome Clinical Trials

Looking for clinical trials for Long QT Syndrome? There are currently 9 studies actively recruiting participants. Clinical trials offer access to new treatments before they are widely available, and every approved therapy in use today was first tested through a clinical trial.

Below you can browse trials, sign up for alerts when new Long QT Syndrome trials open, and view eligibility criteria for each study. Each listing includes the study phase, locations, and enrollment details.

Frequently Asked Questions

Common questions about Long QT Syndrome clinical trials

A clinical trial is a carefully designed research study that tests new medical treatments, drugs, devices, or approaches in human volunteers. Every approved medication and treatment available today was proven safe and effective through clinical trials.

All clinical trials are reviewed and approved by Institutional Review Boards (IRBs) — independent committees that evaluate patient safety. Trials follow strict protocols, and your health is monitored closely throughout. You can withdraw at any time.

Not necessarily. Many trials compare the new treatment against the current standard of care, meaning all participants receive active treatment. When placebos are used, they are typically combined with standard treatment, not given alone. The trial description will always specify the design.

Under the Affordable Care Act, most private insurers are required to cover routine patient care costs during a clinical trial. The sponsor typically covers the investigational treatment itself. Medicare also covers routine costs for qualifying trials.

Yes. Participation is completely voluntary. You can withdraw at any time, for any reason, without it affecting your access to standard medical care.

Each trial has specific eligibility criteria — including age, diagnosis, disease stage, prior treatments, and general health. Browse the trials listed above and check their eligibility sections. You can also contact the trial site directly to discuss your situation.

Showing 111 of 11 trials

Recruiting

AI-powered ECG Analysis for Deadly Arrhythmias and ICI Myocarditis

Immune Checkpoint Inhibitor-Related MyocarditisArrhythmiaLong QT Syndrome
Groupe Hospitalier Pitie-Salpetriere127,000 enrolled1 locationNCT07644715
Recruiting

Wearable Devices for Patient Monitoring in Long QT Syndrome

Long QT Syndrome
Queen Mary University of London80 enrolled1 locationNCT06887387
Recruiting

National Network for Cardiovascular Genomics: Advancing Cardiovascular Healthcare for Hereditary Diseases in Brazil's Unified Health System Through a Multicenter Registry

Sudden Cardiac DeathArrhythmogenic Right Ventricular DysplasiaCardiomyopathy, Dilated+11 more
Hospital do Coracao1,211 enrolled27 locationsNCT06546137
Recruiting
Not Applicable

Comparing Direct vs Indirect Methods for Cascade Screening

Genetic TestingLong QT SyndromeEthics+1 more
University of Maryland, Baltimore200 enrolled1 locationNCT05348564
Recruiting
Phase 2Phase 3

Evaluation of Efficacy and Safety of THRV-1268 in Long QT Syndrome Type 2 (LQTS 2)

Long QT Syndrome (LQTS) 2
Thryv Therapeutics, Inc.64 enrolled6 locationsNCT07277582
Recruiting

Fetal Electrophysiologic Abnormalities in High-Risk Pregnancies Associated With Fetal Demise

gastroschisisFetal deathPregnancy Loss+16 more
Medical College of Wisconsin30 enrolled2 locationsNCT03775954
Recruiting
Not Applicable

Continuous Versus Intermittent cARdiac Electrical moNitorinG

Long QT SyndromeTorsades de Pointe Caused by Drug
Washington University School of Medicine60 enrolled1 locationNCT04336644
Recruiting

Observational Study to Describe Health-Related Quality of Life and Measure Disease Burden Among Patients With Long QT Syndrome Types (LQTS) 2 and 3

Long QT Syndrome Type 3Long QT Syndrome 2
Thryv Therapeutics, Inc.200 enrolled1 locationNCT07075445
Recruiting

Evaluation of Exercise Testing and Physical Activity in Children and Adolescents Living With Inherited Arrhythmias

Long QT SyndromeCatecholaminergic Polymorphic Ventricular Tachycardia Type 1Catecholaminergic Polymorphic Ventricular Tachycardia Type 2
Royal Brompton & Harefield NHS Foundation Trust110 enrolled2 locationsNCT06661278
Recruiting

Building of a Diagnostic/Prognostic Database for Human ERG Variant Effects

Long QT Syndrome
Nantes University Hospital600 enrolled2 locationsNCT06087367
Recruiting

Clinical Cohort Study - TRUST

Atrial FibrillationArrhythmias, CardiacSupraventricular Tachycardia+9 more
Universitätsklinikum Hamburg-Eppendorf5,000 enrolled1 locationNCT05521451