We Are Stronger Together

PWSA (USA) is a community of families, professionals, and organizations committed to providing support and hope to those affected by Prader-Willi syndrome. Together, we are showing the world children and adults with PWS need not be defined by their diagnosis.

Family Support

PWSA (USA) supports individuals diagnosed with Prader-Willi syndrome, their families, and care providers with critical information and resources. We educate medical providers, educators, and professional care givers about PWS and how to best support individuals with the syndrome.



PWSA (USA) seeks to support research projects with the potential for immediate and high impact for the PWS community. The goal is to fast-track better treatment for the syndrome, and we proudly collaborate with partners representing pharmaceutical companies, research universities, and more to achieve that goal.

Advocacy & Awareness

Raising awareness and effective advocacy are critical to effecting positive change in and for the Prader-Willi syndrome community. PWSA (USA) is committed to empowering individuals with PWS and their families with resources and tools such as the Public Policy Action Center.


Resource Library

Featured Resource

Latest Articles

Surviving Teletherapy

If you have a loved one who has Prader-Willi syndrome (PWS), you have no doubt tried some sort of teletherapy due to the Coronavirus pandemic. While some individuals have taken easily to this new way of interacting, many are finding it difficult. If your loved one falls in the latter category, a few suggestions...

Visceral Adipose Tissue Resides Within the Reference Range in Children with Prader-Willi syndrome Receiving Nutritional Intervention on a Regular Basis

In a recently published study from Japan, 20 children with Prader-Willi syndrome (PWS) were retrospectively evaluated for the effect of nutritional intervention (caloric restriction) and growth hormone (GH) treatment on visceral adipose tissue (VAT). VAT has been shown to be a marker for risk of metabolic complications and is believed to be a better...

Latest News & Events

Soleno Therapeutics Announces Top-line Results from Phase III Trial of DCCR for Treatment of Prader-Willi Syndrome

Though the study did not meet statistical significance for Primary Endpoint, significant improvements were seen in a prespecified subgroup with severe hyperphagia. Significant positive changes were also seen in two of three key secondary endpoints. Interim analysis of Ongoing Extension Study (C602) showed further reductions in hyperphagia of 48% after six months of DCCR...