Think CLN2
The classic form emerges between ages two and four, usually with a plateau or delay in language, followed by seizures that can be difficult to explain, alongside unsteadiness or frequent falls in a previously typically developing child. Thinking CLN2 means reading a first unexplained seizure together with preceding language delay, rather than in isolation.
Act Early
CLN2 progresses quickly, with language, motor, and visual decline unfolding over a few years. Once it is suspected, TPP1 enzyme activity testing and genetic confirmation can establish the diagnosis. Acting early means investigating the combination of seizures and language delay promptly, rather than waiting to see how the picture develops.
Transform Lives
An approved enzyme replacement therapy, delivered into the cerebrospinal fluid, can slow the decline of language and motor function, with the greatest benefit before extensive loss has occurred. Alongside it, coordinated care across pediatric neurology, therapy services, and quality-of-life-focused support helps a child retain hard-won skills for as long as possible.
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