Evaluating cardiovascular risks in patients with a specific SCN5A mutation

Impact on Risk Stratification of Overlap Syndrome Phenotype (Brugada and Long QT Type 3) in Patients With E1784K Mutation in SCN5A

Centre Hospitalier Universitaire de la Réunion · NCT05274646

This study looks at the heart risks in people aged 12 and older with a specific SCN5A gene mutation to see how it affects those with different heart conditions.

Quick facts

Study typeObservational
Enrollment64 (estimated)
Ages12 Years and up
SexAll
SponsorCentre Hospitalier Universitaire de la Réunion (other)
Locations1 site (Saint-Pierre, France)
Trial IDNCT05274646 on ClinicalTrials.gov

What this trial studies

This observational study aims to assess the occurrence of major cardiovascular events (MCE) in patients aged 12 and older who have the E1784K mutation in the SCN5A gene. It will compare patients exhibiting an overlap syndrome phenotype, which includes both Brugada syndrome and Long QT syndrome type 3, against those with a single phenotype. The study will utilize both retrospective and prospective data collection to analyze the risk stratification challenges associated with this mutation. By identifying and comparing these patient groups, the study seeks to improve understanding of cardiovascular risks linked to the E1784K mutation.

Who should consider this trial

Good fit: Ideal candidates for this study are patients aged 12 years and older who have the E1784K mutation in the SCN5A gene.

Not a fit: Patients without the E1784K mutation in the SCN5A gene or those under 12 years of age may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance risk stratification and management strategies for patients with the E1784K mutation, potentially reducing the incidence of major cardiovascular events.

How similar studies have performed: While this study addresses a specific mutation and its associated phenotypes, similar studies have shown that understanding genetic variations can significantly impact risk stratification in cardiac conditions.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* genotype E1784K (glu1784lys) in SCN5A gene

Exclusion Criteria:

* none

Where this trial is running

Saint-Pierre, France

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Long QT Syndrome, Brugada Syndrome, Cardiac Conduction System Disease, Arrhythmias, Cardiac, Long QT syndrome type 3, SCN5A gene, E1784K mutation, Cardiac arrhythmias

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.