New registry tracks safety of mexiletine in kids with myotonia
NCT ID NCT07154654
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study follows up to 10 children from birth to under 6 years old who have genetic muscle disorders causing stiffness (myotonia) and are taking mexiletine. Researchers will collect data on side effects and how the medicine is used in routine care over the long term. The goal is to better understand the safety of mexiletine in this young age group.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
mexiletine
What this could lead to
If successful, this study could provide valuable safety data to guide mexiletine use in young children with myotonic disorders, potentially improving symptom management.
What could go wrong
This is a small, observational registry (10 participants) with no control group, so results may not be widely applicable. It focuses on safety, not effectiveness, and mexiletine carries risks like heart rhythm issues.
Disclaimer
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the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Centre Hospitalier Universitaire de Clermont-Ferrand
RECRUITINGClermont-Ferrand, France
Contact Email: •••••@•••••
Contact