The HLA-DQA1*05 genotype does not influence the clinical response to ustekinumab and vedolizumab
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Pilar Navajas Hernández [2] ; Pilar del Pino Bellido [1] ; Laura Lorenzo González [3] ; Concepción González Rodríguez [2] ; Antonio Pérez Pérez [2] ; Federico Argüelles Arias [2]
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[1] Hospital Juan Ramón Jiménez
Hospital Juan Ramón Jiménez
Huelva, España
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[2] Hospital Virgen Macarena. Seville, Spain
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[3] Hospital San Juan de Dios del Aljarafe. Seville, Spain
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- Localización: Revista Española de Enfermedades Digestivas, ISSN-e 2340-4167, ISSN 1130-0108, Vol. 115, Nº. 11, 2023, págs. 608-614
- Idioma: inglés
- Enlaces
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Resumen
Background: the success of strategies with earlier anti-TNF drugs for the treatment of inflammatory bowel disease (IBD) have been shadowed by the development of anti-drug antibodies that reduce their effectiveness. The HLA-DQA1*05 allele has been shown to increase the risk of immunogenicity to anti-TNF drugs by approximately two-fold. The negative impact of this allele has not been fully investigated for newer biotherapies. Objective: whether the presence of the HLA-DQA1*05 allele is associated with a reduction of response to ustekinumab and vedolizumab was investigated. Material and methods: the impact of HLA-DQA1*05 on disease activity in 93 patients with IBD, treated with ustekinumab (n = 39) or vedolizumab (n = 54) was investigated in a retrospective cohort study. Treatment response and remission was assessed at 6 and 12 months for ustekinumab, and up to 18 and 24 months for vedolizumab, using Harvey-Bradshaw index (Crohn’s disease) and Mayo score (ulcerative colitis). Results: the HLA-DQA1*05 allele was found in 35.9 % and 38.9 % of patients treated with ustekinumab and vedolizumab, respectively. Clinical response was not affected by the presence of the HLA-DQA1*05 allele for both treatment groups. Conclusions: in contrast to anti-TNF drugs, HLA-DQA1*05 presence does not correlate with the decreased response to ustekinumab or vedolizumab.
