Comparative efficacy and safety of anakinra and canakinumab in patients with VEXAS syndrome - an international multicenter study

Tali Eviatar*, Dafne Capelusnik, Corrado Campochiaro, Valentin Lacombe, Vincent Jachiet, Michael Zisapel, Iftach Sagy, Oshrat E Tayer-Shifman, David Ozeri, Shaye Kivity, Alessandro Tomelleri, Benjamin Terrier, Hagit Peleg, Thibault Comont, Karim Sacre, Pascal Woaye-Hune, Laurent Arnaud, Estibaliz Lazaro, Vincent Grobost, Francois LifermannMaxime Samson, Samuel Ardois, Alice Garnier, Alexandre Maria, Alain Cantagrel, Aurore Meyer, Jean-David Bouaziz, Mael Heiblig, Lorenzo Dagna, Elisa Diral, Olivier Kosmider, Ori Elkayam, Jérôme Hadjadj, Sophie Georgin-Lavialle, Olivier Fain, Arsene Mekinian

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

OBJECTIVES: The aim of this study was to compare differences in clinical response, drug survival, and adverse event rates between anakinra and canakinumab in VEXAS syndrome. METHODS: This multicenter international study includes VEXAS patients from France, Israel, and Italy treated with IL1 inhibition (IL1i). Global response (GR) was defined as the absence of inflammatory symptoms, 50% or greater decrease in steroid dose and C-reactive protein. Multiple regression analysis was performed to identify associated variables. Drug survival was analyzed using Kaplan-Meier plots and log-rank test, with Cox-regression models for associated factors. RESULTS: We included 47 male VEXAS patients; 44 received anakinra, and 9 received canakinumab, with 6 patients using both at different time points. GR at 1 month was 34% for anakinra and 100% for canakinumab (p<0.001), 22% and 78% at 3 months, respectively (p=0.001). Treatment with canakinumab was associated with higher odds ratio (OR) of achieving GR at 3 months (OR 28.8, 95%CI 3·0-273·9, p=0.004) in a multivariable analysis. Median drug survival was 54 (30-56) months for canakinumab at 300 mg/month, compared to 7 (4-8) months for canakinumab 150 mg/month and 1 (1-2.5) months for anakinra (p=0.01). Injection site reactions were only recorded for the anakinra group (47 vs 0%; p=0.006), whereas infections were more frequent in the anakinra group (31% and 11%; p=0·3). CONCLUSIONS: Canakinumab demonstrated superior clinical response and drug survival with fewer adverse events compared to anakinra. Monthly Canakinumab 300 mg may be considered as an effective steroid-sparing therapeutic option for VEXAS patients.
Original languageEnglish
JournalArthritis & Rheumatology
DOIs
Publication statusE-pub ahead of print - 22 Sept 2025

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