Initial development and pragmatic clinical validation of a static disease severity instrument for pyoderma gangrenosum: Investigator Global Assessment for PG (IGAPg) - 19/08/26
Doi : 10.1016/j.jaad.2026.04.1968
Michael E. Jacobson, BA a, b, Justin W. Ng, BS b, Laura Morales Leon, BS, BA b, Jesse J. Keller, MD, MCR b, Angelo V. Marzano, MD c, d, William W. Huang, MD, MPH e, Robert I. Kelly, MBBS f, Arash Mostaghimi, MD, MPH g, Alex G. Ortega-Loayza, MD, MCR b, ⁎ 
a Oregon Health & Science University, School of Medicine, Portland, Oregon
b Department of Dermatology, Oregon Health & Science University, Portland, Oregon
c Dermatology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
d Department of Pathophysiology and Transplantation, Università Degli Studi di Milano, Milan, Italy
e Department of Dermatology, UNC School of Medicine, Chapel Hill, North Carolina
f Department of Dermatology, St Vincent's Hospital, University of Melbourne, Melbourne, Australia
g Department of Dermatology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
∗ Correspondence to: Alex G. Ortega-Loayza, MD, MCR, Oregon Health and Science University, Center for Health and Healing, 3303 SW Bond Ave, CH16D, Portland, OR 97239 Oregon Health and Science University Center for Health and Healing 3303 SW Bond Ave, CH16D Portland OR 97239
Key words : clinical research, general dermatology, medical dermatology, outcome measures, pyoderma gangrenosum
| Funding sources: Ortega-Loayza is supported by National Institutes of Health , National Institute of Arthritis and Musculoskeletal and Skin Diseases , R01 AR083110 . |
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| Patient consent: Not applicable. |
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| IRB approval status: Reviewed and approved by the Oregon Health & Science University IRB; approval # 27328; 21834. |
© 2026
American Academy of Dermatology, Inc.. Publié par Elsevier Masson SAS. Tous droits réservés.
Vol 95 - N° 3
P. 765-768 - septembre 2026 Retour au numéro
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