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Characterization of omalizumab updosing patterns and predictive factors in chronic spontaneous urticaria: A prospective multicentric observational study.

Authors :
Pierrard, Guillaume
Bernier, Claire
Du‐Thanh, Aurélie
Bara, Corina
Soria, Angèle
Castelain, Florence
Boccon‐Gibod, Isabelle
Hacard, Florence
Delaunay, Juliette
de Montjoye, Laurence
Staumont‐Salle, Delphine
Dezoteux, Frédéric
Source :
Allergy. Sep2024, Vol. 79 Issue 9, p2448-2457. 10p.
Publication Year :
2024

Abstract

Background: Limited information is available on the use of omalizumab (OMA) updosing since its introduction as a second‐line therapy in chronic spontaneous urticaria (CSU) in 2014. Practical guidelines from health authorities are lacking, and the specific characteristics of patients requiring higher doses remain unknown. Our objectives were to characterize the patterns of OMA updosing (defined as changes in dose and/or injection intervals), to identify the predictive factors associated with updosing, and to improve CSU management. Methods: We conducted a prospective, multicentric, real‐life observational study, including patients diagnosed with CSU and starting OMA. The data were collected at 0, 3, 6, and 9 months. The primary endpoint was the frequency of OMA updosing at 3 months. The secondary endpoints included an analysis of updosed patients' profile, and an assessment of OMA efficacy and safety. Results: We included 153 patients. Twenty percent of patients were updosed at 3 months, and 27% in total during the 9‐month follow‐up. Practitioners mainly chose to increase the frequency of injections (66%). At baseline, the updosed patients were more likely to have more severe CSU (UCT < 4, p < 0.030), a lower lymphocyte count (<2000/mm3, p = 0.037), and low IgE levels (<70 UI/mL, p = 0.024). The side effects of OMA were not more frequent after updosing. Conclusion: One in five patient underwent updosing within just 3 months. OMA updosing is frequent in particular in cases of severe disease and low IgE blood levels. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
01054538
Volume :
79
Issue :
9
Database :
Academic Search Index
Journal :
Allergy
Publication Type :
Academic Journal
Accession number :
179392249
Full Text :
https://doi.org/10.1111/all.16256