アトピー性皮膚炎に伴う爪ジストロフィーに対するデュピルマブ:症例報告
Zexin Zhao1, Hongxia Li1, Deping Luo1
1Department of Dermatology, The Second Affiliated Hospital, Guizhou University of Traditional Chinese Medicine, Guiyang, 550000, People's Republic of China.
International medical case reports journal
|February 26, 2026
まとめ
アトピー性皮膚炎(AD)は爪ジストロフィーを引き起こす可能性があり、しばしば真菌感染症と誤診される。デュピルマブはAD患者の爪の変化を効果的に治療し、この病状に有望であることを示した。
科学分野:
- 皮膚科学
- 免疫学
背景:
- 爪ジストロフィーはアトピー性皮膚炎(AD)の一般的であるが、見過ごされがちな症状である。
- しばしば爪真菌症と誤診され、効果のない治療につながる。
- この孤立したADの表現型を標的とする生物学的治療に関するエビデンスは限られている。
研究 の 目的:
- アトピー性皮膚炎(AD)に伴う爪ジストロフィーのデュピルマブによる治療成功例を報告する。
- 慢性的な爪の変化と菌学的所見が陰性の患者において、ADを考慮することの重要性を強調する。
主な方法:
- 10年間のADの病歴と進行性の爪ジストロフィーを持つ57歳女性にデュピルマブを投与した。
- 診断学的ワークアップには、真菌感染症の除外とアトピーマーカーの評価が含まれた。
- 治療は、ローディングドーズの後、デュピルマブによる維持療法で構成された。
主要な成果:
- デュピルマブ治療開始後28週以内に、患者の爪ジストロフィーと爪囲炎は完全に解消した。
- 総血清IgEは著しく上昇し、アトピーの家族歴が存在した。
- 52週間の追跡調査で再発や有害事象は認められなかった。
結論:
- 慢性的な爪の変化、陰性の真菌検査、IgE高値、アトピー歴のある患者では、AD関連の爪ジストロフィーを考慮すべきである。
- デュピルマブは完全かつ持続的な改善を示し、このAD表現型に対するIL-4/IL-13経路阻害を支持した。
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