A growing community

A small gene. A worldwide family.

Families and clinicians touching DLL1 live on every continent. Each diagnosed family adds to a clearer picture — and to the leverage we need for natural-history studies, registries, and one day, treatments.

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diagnosed individuals
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pathogenic variants reported
Voices from the community

You are not alone.

For five years, every specialist had a name for one symptom. Nobody had a name for our son. Then DLL1 arrived — and so did a community.

A founding family · United States

When the genetic counsellor said the variant was 'uncertain', we thought we were back at the start. The DLL1 community is what told us we were not.

A mother · United Kingdom
Read more stories →

A diagnosis is the beginning of a map, not the end of a search.