Genetic susceptibility to fixed drug eruption: evidence for a link with HLA-B22.

Pellicano, R; Ciavarella, G; Lomuto, M; Di Giorgio, G · J Am Acad Dermatol · 1994

case_control · Level III

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Abstract

Our observation of familial cases of fixed drug eruption (FDE) prompted us to consider a genetic predisposition to this disease. Our purpose was to determine whether there is any association between FDE and any of the major histocompatibility complex class I or II alleles. HLA class I and II typing was performed by lymphocytotoxicity assay in 36 unrelated patients with FDE. Significantly higher (p < 0.0001) frequencies of the B22 and Cw1 antigens were found in the 36 patients with FDE. Our data are the first to suggest a genetic predisposition to FDE.

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