With you
for the journey
Angelman syndrome (AS) is a rare neuro‑developmental disorder that affects one in 15,000 people. Our mission is to advance the awareness and treatment of AS with the ultimate goal of finding a cure.
You are not alone
If you’re overwhelmed by a new diagnosis, you’ve come to the right place.
Adulthood brings new rewards and challenges. Find resources here.
Find resources and programs to make your journey easier and more informed.
Explore ways you can contribute to the ASF mission & connect with others in the Angelman community.
Supporting Angelman Families for more than 30 years
The Angelman Syndrome Foundation (ASF) is committed to supporting families when and where they need it most.
What is Angelman Syndrome?
Angelman syndrome is a rare neuro‑developmental disorder that affects one in 15,000 people or 500,000 people worldwide.
Angelman syndrome shares symptoms and characteristics with other disorders including autism, cerebral palsy and Prader-Willi syndrome. Due to the common characteristics, misdiagnosis occurs often.
Advancing Global Care Together
**Total includes first- and second-year grants from current and/or prior year funding rounds. Full award amount is not fully expensed during a fiscal year if the study is multi-years.
