GRAPPA is organized exclusively for non-profit, educational, and scientific purposes, specifically to facilitate sharing of information related to psoriasis and psoriatic arthritis, networking among different medical disciplines that see psoriasis and psoriatic arthritis patients, and to enhance research, diagnosis and treatment of psoriasis and psoriatic arthritis.
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Celebrating 20 Years of GRAPPA!
We kicked off the 2023 Annual Meeting and Trainee Symposium today celebrating GRAPPA's 20th Anniversary! 🎉👏We've had an incredible 20 years, but we're just getting started! Thanks to all of our dedicated members and your many contributions over the years! Looking forward to more to come!

"We are united in our leadership to bring the most passionate rheumatologists, dermatologists, clinical scientists, patient representatives, and industry partners together to make a difference for those living with psoriasis and psoriatic arthritis."
April Armstrong, MD, MPH & Oliver FitzGerald, MBBCh, BAO, MRCPI, MRCP, FRCPI, MD, - GRAPPA Co-Presidents


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About Us
Originally inspired by the Assessment in Ankylosing Spondylitis Working Group (ASAS), GRAPPA was formed in 2003. GRAPPA has pulled together many different groups, including preeminent researchers and thought-leaders in psoriatic arthritis (PsA) and psoriasis (PsO).
In 2015 a team of Patient Research Partners was added to round out our perspective. The idea was to form a consortium of rheumatologists, dermatologists, radiologists, epidemiologists, patient representatives and others who would like to contribute to the field of PsA. At the inaugural meeting in 2003, a consensus exercise started the group toward prioritizing domains of inquiry in PsA and PsO.
Subsequent annual meetings have focused on identifying and initiating research projects, advancing standardized criteria for psoriatic arthritis registries, and developing treatment guidelines for PsA. GRAPPA is a 501(c)3 nonprofit organization with offices in Seattle, WA and members from around the world.
Wherever the art of medicine is loved, there is also a love of humanity. Hippocrates
GRAPPA Corporate Members
Corporate members support GRAPPA's mission by contributing to ongoing operations and the multiple initiatives of our association, such as research and education.
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