Characteristics of patients with chronic spontaneous urticaria who are late-responders to omalizumab

A proportion of patients with CSU on omalizumab may benefit from long treatment duration (at least 24 weeks). Late responding patients were more likely to have low IgE, high BMI, less disease control, and be a younger age at baseline. A proportion of patients with CSU on omalizumab may benefit from long treatment duration (at least 24 weeks). Late responding patients were more likely to have low IgE, high BMI, less disease control, and be a younger age at baseline.