Foundation

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Prader-Willi Syndrome Association

Paige Rivard leads PWSA, the rare-disease nonprofit that has put over $20M into Prader-Willi research since 1975.

Prader-Willi Syndrome Association

PWSA was founded in 1975 by parents of children with Prader-Willi syndrome, a complex genetic disorder characterized by insatiable hunger, metabolic challenges, and developmental delays. The association operates from Sarasota, Florida, though its origins trace to grassroots advocacy efforts across the Midwest. Paige Rivard, appointed CEO, now oversees the national organization's programmatic and fundraising operations. The organization channels donor contributions into three primary allocations: medical research grants, crisis intervention for affected families, and professional education for clinicians. Its research funding has supported investigations into hyperphagia drug therapies, hormone replacement protocols, and behavioral intervention models at academic medical centers including the University of Florida and Vanderbilt University. Crisis support includes emergency food-safety planning and residential placement guidance—services distinct from conventional grantmaking. Geographic reach spans all 50 states through a chapter network, with concentrated activity in Florida, California, and the Northeast. PWSA does not manage an investment portfolio or report AUM in the allocator sense. Its annual budget—derived from individual donations, corporate sponsorships, and federal health grants—funds operations and pass-through research awards. The organization maintains no venture arm, no donor-advised fund structure, and no co-investment vehicles. A scientific advisory board reviews research proposals, and funded work occasionally yields intellectual property that returns modest royalties to the association. A structural feature distinguishing PWSA from general pediatric nonprofits is its therapeutic development pipeline: by funding early-stage clinical trials that pharmaceutical companies often avoid in ultra-rare diseases, the association acts as a de facto translational research bridge. This posture places it closer to a disease foundation like the Cystic Fibrosis Foundation's venture-philanthropy model—though at a fraction of the scale and without equity positions in drug developers.

General information

Firm type

Foundation

Year founded

1975

AUM

Undisclosed

Location

Region

North America

Country

United States

City

Sarasota

Corporate office

Sarasota, FL, United States

Principals

Paige Rivard

Chief Executive Officer

Sector focus

Healthcare ServicesEducation

Frequently asked questions

How does the Prader-Willi Syndrome Association allocate the funds it raises?

Funds are deployed across three priorities: direct research grants to academic institutions and early-stage therapeutic programs, family-support services including crisis intervention and emergency planning, and clinician education. The association does not operate investment vehicles or pursue market-return strategies. Any royalties from funded intellectual property are funneled back into mission-driven programs.

Does PWSA participate in venture-philanthropy models like the Cystic Fibrosis Foundation?

PWSA funds early-stage research and occasionally receives royalties from resulting intellectual property, but it does not take equity positions in drug developers. Its model is closer to a traditional grantmaking foundation than the Cystic Fibrosis Foundation's venture-philanthropy approach. The association's scale—driven by a rare-disease population far smaller than CF—limits the feasibility of equity-based funding structures.

What therapeutic areas does PWSA's research funding target?

Primary targets include hyperphagia (insatiable hunger), growth hormone deficiency and related metabolic disorders, and behavioral or psychiatric challenges associated with the syndrome. Funded work has spanned drug therapies, hormone replacement protocols, and behavioral intervention models. The association prioritizes clinical applications over basic science.

Who runs investment decisions at PWSA?

PWSA does not operate an investment portfolio in the allocator sense. Its annual operating budget is derived from donations and grants, with no dedicated investment committee or in-house investment staff. Financial oversight falls to the CEO and board of directors, who manage pass-through grantmaking rather than market-facing asset allocation.

How can an institutional funder evaluate the impact of contributing to PWSA?

Metrics include the number of research grants awarded annually, clinical trials initiated with PWSA support, and the volume of crisis-intervention cases resolved. The association publishes annual reports detailing research outcomes and program reach. For philanthropic allocators, the primary underwriting consideration is the organization's ability to translate donations into distributed grants with low administrative overhead.

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