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Rett Syndrome Europe

Supporting families and advancing research on Rett syndrome – across Europe.

Rett Syndrome Europe (RSE) is a non-profit association representing the interests of people with Rett syndrome and their families across Europe. We work alongside national Rett syndrome associations, clinicians and researchers to improve care, advance research, and raise awareness.

Understanding Rett syndrome

A rare, genetic, neurological condition.

After a period of near-normal early development, children (mainly girls) experience a regression in mobility, speech and hand use, usually between the ages of one and two.

What is Rett syndrome?

A rare neurological disorder caused (in most cases) by a fault on the MECP2 gene. It is present from conception but symptoms appear after a period of typical development.

Diagnosis & care

Genetic testing of MECP2 confirms most cases. Multiple comorbidities — epilepsy, breathing irregularities, scoliosis, gastrointestinal issues — require coordinated multidisciplinary care.

Research today

Multiple gene-therapy and pharmacological trials are underway across Europe and the US. Our Scientific Advisory Board guides our members through the evidence as it emerges.

Our flagship initiatives

Three programmes driving research, dialogue and clinical excellence.

RSE coordinates three flagship programmes that work alongside our member associations, from accelerating treatment research to bringing the European Rett community together.

★ European patient registry

rettX — Unveiling hope for Rett syndrome

Pan-European·Secure·Family-driven

The European patient registry where families help advance care, research and treatments for Rett syndrome — across every country, in one secure place.

Learn about rettX →

◇ Expert convening · Madrid 2026

Rett Forum — European Edition 2026

Oct 2026·Madrid·50–60 experts · 30+ countries

The first pan-European expert convening on standards of care for Rett syndrome. Six thematic working groups drafting the first European consensus-based standards.

Learn about Rett Forum 2026 →

⚕ Scientific guidance

Scientific Advisory Board

15 specialists·From across Europe·Independent

An independent group of leading clinicians and researchers who advise RSE, review emerging evidence, and support our member associations in interpreting new research.

Meet the board →

Member associations

25 countries. One European voice.

Click any country to find your national association, contacts, and local events.

Help us go further

Every contribution moves Rett research forward.

Donations support our flagship initiatives, family resources, and the work of our member associations across Europe. RSE is an entirely volunteer-led non-profit — every euro goes to programmes.

Secure payment · tax-deductible in many EU countries

Latest news

Stories, research updates, family voices.