Background Omalizumab is indicated in patients with severe allergic asthma not controlled by high-dose inhaled glucocorticoids and long-acting beta-agonists. Few data are available on the profile of patients treated with this drug in routine clinical practice in Spain.
Objective To describe the profile of patients with severe allergic asthma treated with omalizumab and the course of the disease after a period of treatment.
Methods Retrospective, multicentre study, recording the data on patients of either sex and ?12 years with uncontrolled severe allergic asthma, previously treated with omalizumab. Data were evaluated in relation to pulmonary function, symptoms, quality of life, and concomitant anti-asthma treatment before the prescription of omalizumab and at the time of the study visit.
Results 214 patients were evaluable (mean age = 48.2 ± 17.7 years; mean age at the time of diagnosis = 26.6 ± 16.5 years). 90.7% had experienced exacerbations the year before receiving omalizumab, and the mean total IgE level was 273 ± 205.4 IU/ml. The mean monthly dose was 380.5 ± 185.4 mg. Compared with the baseline situation, differences were observed after treatment with omalizumab in mean FEV1 (62.7 ± 15.9% vs. 70.8 ± 18.7%), in the proportion of patients requiring oral corticosteroids (47.7% vs. 14.0%), and in the ACQ and AQLQ scores. 32.7% of the patients received doses not recommended by the Summary of Product Characteristics (SPC).
Conclusions Profile of asthmatic patients treated with omalizumab predominantly corresponds to uncontrolled severe asthma cases, in accordance with SPC's indications. The results of the study suggest a favourable clinical course similar to that observed in other studies.
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