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Impact of IL6R genetic variants on treatment efficacy and toxicity response to sarilumab in rheumatoid arthritis
Sainz, Luis (Institut d'Investigació Biomèdica Sant Pau)
Riera, Pau (Institut d'Investigació Biomèdica Sant Pau)
Moya, Patricia (Institut d'Investigació Biomèdica Sant Pau)
Bernal, Sara (Institut d'Investigació Biomèdica Sant Pau)
Casademont i Pou, Jordi (Institut d'Investigació Biomèdica Sant Pau)
Diaz-Torne, Cesar (Institut d'Investigació Biomèdica Sant Pau)
Millán Herrera, Ana Milena (Institut d'Investigació Biomèdica Sant Pau)
Park, Hye S. (Institut d'Investigació Biomèdica Sant Pau)
Lasa, Adriana (Institut d'Investigació Biomèdica Sant Pau)
Corominas, Hèctor (Institut d'Investigació Biomèdica Sant Pau)
Universitat Autònoma de Barcelona. Departament de Medicina

Date: 2023
Abstract: Sarilumab, an IL-6 receptor antagonist, is a first-line biologic disease-modifying anti-rheumatic drug for rheumatoid arthritis. The identification of genetic biomarkers as predictors of response to sarilumab could allow for a personalized treatment strategy to improve clinical outcomes. We conducted a retrospective cohort study of 62 patients treated with sarilumab to determine whether single-nucleotide polymorphisms (SNP) in the IL6R gene could predict efficacy and toxicity responses. Six SNPs previously described in the IL6R gene (rs12083537, rs11265618, rs4329505, rs2228145, rs4537545, and rs4845625) were genotyped in DNA samples obtained from these patients. Using parametric tests, we evaluated the association between these polymorphisms and clinicopathological features. Treatment response was assessed six months after treatment initiation. Satisfactory response was based on EULAR criteria. Low disease activity was determined according to DAS28 and CDAI and quantitative improvements in DAS28 and CDAI scores. Three SNPs (rs4845625, rs4329505 and rs11265618) were significantly associated with response outcomes. All of the SNPs, except for rs12083537, had at least one significant association with dyslipidemia or hepatotoxicity. These findings support the potential clinical value of SNPs, particularly rs4845625, as potentially useful biomarkers to predict response to sarilumab in patients with RA.
Rights: Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. Creative Commons
Language: Anglès
Document: Article ; recerca ; Versió publicada
Subject: IL6R ; Genetic variants ; Sarilumab ; Rheumatoid arthritis ; Predictive factors
Published in: Arthritis research & therapy, Vol. 25 Núm. 1 (december 2023) , p. 226, ISSN 1478-6362

DOI: 10.1186/s13075-023-03209-1
PMID: 38001504


10 p, 821.5 KB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (research output) > Health sciences and biosciences > Institut de Recerca Sant Pau
Articles > Research articles
Articles > Published articles

 Record created 2024-07-08, last modified 2026-03-05



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