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Published in: Rheumatology International 6/2014

01-06-2014 | Original Article

Candidate’s single-nucleotide polymorphism predictors of treatment nonresponse to the first anti-TNF inhibitor in ankylosing spondylitis

Authors: Ruxandra Schiotis, Alejandra Sánchez, Alejandro Escudero, Nerea Bartolomé, Magdalena Szczypiorska, Pilar Font, Antonio Martínez, Diego Tejedor, Marta Artieda, Juan Mulero, Anca Buzoianu, Eduardo Collantes-Estévez

Published in: Rheumatology International | Issue 6/2014

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Abstract

The objective of this study is to identify single-nucleotide polymorphisms (SNPs) predictors of treatment nonresponse to the first anti-TNF-alpha agent in ankylosing spondylitis (AS). Patients were classified as “nonresponders” if they failed to achieve improvement ≥50 % of the initial BASDAI. We selected candidate SNPs previously reported, associated with susceptibility or pathogenesis of AS and with other spondylarthropaties (SpAs). The predictors of nonresponse were modeled with multiple logistic regression. The predictive power of the genetic model of nonresponse to treatment was tested with AUC-ROC. One hundred and twenty-one (121) AS patients fulfilled the inclusion criteria. Of the candidate SNPs tested for association with treatment effectiveness, five independent predictors were identified: rs917997, rs755622, rs1800896, rs3740691, and rs1061622. The genetic model of nonresponse to treatment had a predictive power of 0.77 (95 % CI 0.68–0.86). Our study identified several polymorphisms which could be the useful genetic biomarkers in predicting nonresponse to anti-TNF-alpha therapy.
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Metadata
Title
Candidate’s single-nucleotide polymorphism predictors of treatment nonresponse to the first anti-TNF inhibitor in ankylosing spondylitis
Authors
Ruxandra Schiotis
Alejandra Sánchez
Alejandro Escudero
Nerea Bartolomé
Magdalena Szczypiorska
Pilar Font
Antonio Martínez
Diego Tejedor
Marta Artieda
Juan Mulero
Anca Buzoianu
Eduardo Collantes-Estévez
Publication date
01-06-2014
Publisher
Springer Berlin Heidelberg
Published in
Rheumatology International / Issue 6/2014
Print ISSN: 0172-8172
Electronic ISSN: 1437-160X
DOI
https://doi.org/10.1007/s00296-013-2913-y

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