4.5 Article

Paradoxical eczema in patients with psoriasis receiving biologics: a case series

Journal

CLINICAL AND EXPERIMENTAL DERMATOLOGY
Volume 47, Issue 6, Pages 1174-1178

Publisher

WILEY
DOI: 10.1111/ced.15130

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Funding

  1. National Institute for Health Research (NIHR)
  2. NIHR Manchester Biomedical Research Centre

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This retrospective case series identified cases of paradoxical eczema developing in biologic-treated patients with psoriasis, with some cases showing eosinophilia and elevated serum IgE levels. Treatment strategies included discontinuation or switch of biologic therapy, as well as topical corticosteroids and broad-acting systemic agents. However, some patients still experienced persistent eczema and psoriasis despite discontinuing all biologic therapies.
Atopic eczema and psoriasis are chronic, inflammatory dermatoses that can significantly affect the quality of life of those affected. Although both diseases are common, they rarely occur together. Severe psoriasis can be treated with biologic therapies targeting specific cytokine pathways involved in disease pathogenesis. There are reports of paradoxical eczema developing in biologic-treated patients with psoriasis, sometimes necessitating treatment discontinuation and thus leading to poor disease control. This retrospective case series identified 36 such events occurring in 23 patients. All currently available biologic classes were implicated. Eosinophilia (n = 19) and elevated serum IgE (n = 3) were identified in some cases. Treatment strategies included no treatment, topical corticosteroids, broad-acting systemic agents, and discontinuation or switch of biologic therapy. Two patients had persistent eczema and psoriasis despite discontinuation of all biologic therapies.

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