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CASE REPORT article

Front. Allergy

Sec. Skin Allergy

Volume 6 - 2025 | doi: 10.3389/falgy.2025.1657164

This article is part of the Research TopicNavigating the complexities of severe allergic reactions: Current challenges and future directionsView all articles

Successful Treatment of Glucocorticoid-Resistant Acute Severe Urticaria with JAK1 Inhibitor:Case Report

Provisionally accepted
Ying  WuYing WuFei  Long WangFei Long WangNian  He YangNian He YangXing  Chen KanXing Chen KanXuan  GuoXuan GuoDong  Guo HaoDong Guo Hao*
  • Tangshan Gongren Hospital, Tangshan, China

The final, formatted version of the article will be published soon.

Abstract: Objective: This study analyzes a case with a JAK1 (Janus Kinase 1) inhibitor was successfully employed to treat a patient with glucocorticoid-resistant acute severe urticaria (ASU), with the aim of improving clinical understanding of this condition. Methods: A retrospective analysis was conducted on the clinical data, diagnosis, treatment, and prognosis of a patient with acute severe urticaria, who was admitted to the Allergy Department of Tangshan Workers' Hospital on March 10, 2025. Results: The patient was a 50-year-old female who presented with widespread skin wheals and itching, along with a sensation of throat obstruction for two days. Upon admission, the patient had a body temperature of 38.5 °C. Large, irregularly shaped wheals, up to 10 cm in diameter, were observed on the skin. These wheals were bright red with surrounding erythema and increased upon scratching. Laboratory tests indicated elevated levels of white blood cells (WBC), neutrophils percentage, neutrophils absolute value, total IgE, and interleukin-6 (IL-6). A diagnosis of acute severe urticaria was made. Prior to admission, the patient had been administered with betamethasone sodium phosphate, dexamethasone sodium phosphate, methylprednisolone succinate, diphenhydramine, and calcium gluconate at the emergency department without relief in wheals and itching. Upon admission, the patient was treated with glucocorticoids and JAK1 inhibitors, resulting in the complete regression of the rash and normalization of laboratory indicators. Conclusion: This case suggests that JAK1 inhibitors can achieve satisfactory results in treating glucocorticoid-resistant acute severe urticaria.

Keywords: Acute Severe Urticaria, JAK1 inhibitors, Upadacitinib, Glucocorticoid-resistant, Successful treatment

Received: 01 Jul 2025; Accepted: 13 Aug 2025.

Copyright: © 2025 Wu, Wang, Yang, Kan, Guo and Hao. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Dong Guo Hao, Tangshan Gongren Hospital, Tangshan, China

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