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Article Dans Une Revue Journal of Allergy and Clinical Immunology: In Practice Année : 2023

Omalizumab Drug Survival in Chronic Urticaria: A Retrospective Multicentric French Study

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Background: Omalizumab (OMA) dramatically improves disease control and quality of life in patients with chronic urticaria (CU).Objective: We aimed to evaluate the discontinuation patterns of OMA and their determinants in a cohort of French patients with CU.Methods: We conducted a retrospective multicenter study in 9 French tertiary referral hospitals. All patients diagnosed with either spontaneous (CSU) and/or inducible (CIndU) CU who received at least 1 injection of OMA between 2009 and 2021 were included. We analyzed OMA drug survival and investigated possible determinants using Kaplan-Meier curves and log-rank tests.Results: A total of 878 patients were included in this study; 48.8% had CSU, 10.1% CIndU, and 41.1% a combination of both. OMA was discontinued in 408 patients, but the drug was later reintroduced in 50% of them. The main reason for discontinuing treatment was the achievement of a well-controlled disease in 50% of patients. Half of the patients were still being treated with OMA 2.4 years after the initiation of treatment. Drug survival was shorter in patients with CIndU and in those with an autoimmune background. In atopic patients, OMA was discontinued earlier in patients achieving a well-controlled disease. A longer OMA drug survival was observed in patients with a longer disease duration at initiation.Conclusion: In French patients with CU, the drug survival of OMA appears to be longer than that observed in previous studies conducted elsewhere, highlighting discrepancies in prescription and reimbursement possibilities. Further studies are warranted to develop customized OMA treatment schemes based on individual patterns.
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hal-04232919 , version 1 (06-12-2023)

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Julie Litovsky, Florence Hacard, Florence Tétart, Isabelle Boccon-Gibod, Angèle Soria, et al.. Omalizumab Drug Survival in Chronic Urticaria: A Retrospective Multicentric French Study. Journal of Allergy and Clinical Immunology: In Practice, 2023, ⟨10.1016/j.jaip.2023.08.033⟩. ⟨hal-04232919⟩
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