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Effectiveness of Omalizumab in Severe Allergic Asthma and Nasal Polyposis: A Real-Life Study

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Published:1st Jan 2020
Author: Tiotiu A, Oster JP, Roux PR, Nguyen Thi PL, Peiffer G, Bonniaud P et al.
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Ref.:J Investig Allergol Clin Immunol. 2020;30(1):49-57.
Effectiveness of Omalizumab in Severe Allergic Asthma and Nasal Polyposis: A Real-Life Study

Background: Omalizumab is a human anti-IgE antibody approved for the treatment of severe allergic asthma (SAA). However, its effectiveness in SAA associated with chronic rhinosinusitis with nasal polyposis (CRSNP+) is less well documented.

Objective: The aim of this study was to evaluate the real-life effectiveness of omalizumab in patients with SAA and CRSNP+ who tolerated and did not tolerate aspirin.

Methods: We performed a retrospective, observational, multicenter, real-life study of patients with SAA and CRSNP+ treated with omalizumab for 6 months. Asthma outcome parameters (symptoms, number of salbutamol rescues/wk, number of moderate/severe exacerbations, Asthma Control Test score, and lung function), sinonasal outcome parameters (symptoms, number of episodes of acute rhinosinusitis, sinus computed tomography images, nasal polyps endoscopy score), and serum eosinophil levels were analyzed 6 months before and after treatment with omalizumab.

Results: Twenty-four adult patients were included (9 with documented aspirin intolerance). All respiratory parameters were significantly improved by the treatment. In parallel, a significant improvement was observed in sinonasal clinical outcomes and sinus computed tomography images, with no major effect on the nasal polyps endoscopy score. The serum eosinophil count decreased significantly after 6 months of treatment with omalizumab.

Conclusion: Treatment of SAA with omalizumab improves the outcome of associated CRSNP+, thus supporting the concept of a "one airway disease".

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