December 8, 2025Internal Medicine JournalOpen Access

Predictors of response to omalizumab for chronic spontaneous urticaria: a retrospective audit on a rural and regional patient cohort in Darwin, Australia

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Discussion

Retrospective audit identifies elevated IgE and older age as predictors of response to omalizumab in CSU patients.

Complete response to omalizumab treatment associated with higher IgE levels, indicating potential predictive factors for chronic spontaneous urticaria management.
Median duration of chronic spontaneous urticaria was found to be 36 months before starting omalizumab treatment, reflecting the chronic nature of the condition.
The analysis was retrospective, focusing on a rural patient cohort from Darwin, Australia over a 9-year period.
Findings suggest that routine IgE testing may not be beneficial for predicting response to omalizumab treatment in CSU.

Triffitt et al. (2025) studied this question.

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