February 17, 2026

Perceived Acquired Resistance to Omalizumab in Obese Patients With Chronic Spontaneous Urticaria

Martins F, Trave I, Pereira S, Gonçalo M.  Clin Exp Allergy. 2026 Feb 8. doi: 10.1111/cea.70236. 

Summary

  • Obese patients with chronic spontaneous urticaria often require progressively increasing omalizumab doses to maintain previous disease control.
  • Acquired resistance to omalizumab may be explained by immunological and pharmacokinetic changes in the setting of obesity.

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