Dupilumab for Chronic Spontaneous Urticaria with Comorbid Type 2 Inflammatory Conditions: Case Report and Systematic
Somaia Naassan1, Marianne Baastrup Søndergaard1, Celeste Porsbjerg2
1Department of Dermatology, Bispebjerg Hospital, Copenhagen, Denmark.
Introduction:
Chronic spontaneous urticaria (CSU) is a heterogeneous, Th2-driven condition where standard therapies, including antihistamines and omalizumab, are often insufficient. Dupilumab, an IL-4Rα antagonist approved for several Th2-mediated diseases, has shown efficacy in CSU. We present a rare case of CSU coexisting with both asthma and eosinophilic gastroenteritis, successfully treated with dupilumab, highlighting the potential effectiveness and appropriateness of dupilumab in patients with multiple, simultaneous Th2-mediated comorbidities, and provide a systematic review of the literature.
Case Presentation:
A 32-year-old man with refractory CSU, asthma, and eosinophilic gastroenteritis was treated with dupilumab. The patient achieved complete remission of CSU, asthma, and eosinophilic gastroenteritis with dupilumab, with no reported side effects. A systematic literature search of PubMed and Embase identified eight studies comprising 25 CSU patients, most with coexisting atopic dermatitis or asthma. The majority achieved symptom control of urticaria as well as of the coexisting Th2 diseases, with only one report of mild side effects.
Conclusions:
Dupilumab is a suitable therapeutic option in patients with CSU and coexisting Th2-mediated conditions.
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