PMID- 21593767 OWN - NLM STAT- MEDLINE DCOM- 20111003 LR - 20191210 IS - 1523-1747 (Electronic) IS - 0022-202X (Linking) VI - 131 IP - 8 DP - 2011 Aug TI - Photoprovocation in cutaneous lupus erythematosus: a multicenter study evaluating a standardized protocol. PG - 1622-30 LID - 10.1038/jid.2011.101 [doi] AB - Photosensitivity is an important and distinguishing sign in various subtypes of cutaneous lupus erythematosus (CLE); however, it remains poorly defined. The purpose of this study was to evaluate whether standardized photoprovocation is a reproducible method to assess photosensitivity in subjects with CLE. A total of 47 subjects with CLE (subacute cutaneous lupus erythematosus (SCLE), n=14; discoid lupus erythematosus (DLE), n=20; lupus erythematosus tumidus (LET), n=13) and 13 healthy volunteers underwent photoprovocation at seven European sites. Of these, 22 (47%) subjects (57% SCLE, 35% DLE, and 54% LET) and none of the healthy volunteers developed photoprovoked lesions according to clinical analysis. Of these 22 subjects, 19 (86%) developed lesions that were histopathologically confirmed as specific for lupus erythematosus (LE). In CLE subjects who developed UV-induced lesions, 86% had Fitzpatrick's phototypes I or II, and the mean minimal erythema dose (MED) was significantly lower compared with subjects without UV-induced lesions (P=0.004). No significant differences in photoprovocation results were observed between study sites. Safety parameters showed no clinically meaningful differences between CLE subjects and healthy volunteers after photoprovocation. In conclusion, a standardized, safe, and reproducible protocol for photoprovocation using UVA and UVB radiation induced skin lesions in approximately half of all CLE subjects and showed comparable results across multiple sites. This method may therefore be used for future diagnostic testing and clinical trials. FAU - Kuhn, Annegret AU - Kuhn A AD - Department of Dermatology, University of Munster, Munster, Germany. kuhnan@uni-muenster.de FAU - Wozniacka, Anna AU - Wozniacka A FAU - Szepietowski, Jacek C AU - Szepietowski JC FAU - Glaser, Regine AU - Glaser R FAU - Lehmann, Percy AU - Lehmann P FAU - Haust, Merle AU - Haust M FAU - Sysa-Jedrzejowska, Anna AU - Sysa-Jedrzejowska A FAU - Reich, Adam AU - Reich A FAU - Oke, Vilija AU - Oke V FAU - Hugel, Rainer AU - Hugel R FAU - Calderon, Cesar AU - Calderon C FAU - de Vries, Dick E AU - de Vries DE FAU - Nyberg, Filippa AU - Nyberg F LA - eng PT - Controlled Clinical Trial PT - Journal Article PT - Multicenter Study PT - Research Support, Non-U.S. Gov't PT - Validation Study DEP - 20110519 PL - United States TA - J Invest Dermatol JT - The Journal of investigative dermatology JID - 0426720 RN - 0 (Antimalarials) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Antimalarials/therapeutic use MH - Diagnostic Techniques and Procedures/adverse effects/*standards MH - Dose-Response Relationship, Radiation MH - Female MH - Humans MH - Lupus Erythematosus, Cutaneous/*diagnosis MH - Lupus Erythematosus, Discoid/*diagnosis MH - Male MH - Middle Aged MH - Photosensitivity Disorders/*diagnosis MH - Reproducibility of Results MH - Smoking MH - *Ultraviolet Rays MH - Young Adult EDAT- 2011/05/20 06:00 MHDA- 2011/10/04 06:00 CRDT- 2011/05/20 06:00 PHST- 2011/05/20 06:00 [entrez] PHST- 2011/05/20 06:00 [pubmed] PHST- 2011/10/04 06:00 [medline] AID - S0022-202X(15)35360-4 [pii] AID - 10.1038/jid.2011.101 [doi] PST - ppublish SO - J Invest Dermatol. 2011 Aug;131(8):1622-30. doi: 10.1038/jid.2011.101. Epub 2011 May 19.