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Are Biosimilars of Biologics the Same as the Reference Drug in Terms of Allergy? Selective Allergy to Tocilizumab Biosimilar

Betancor D1,2, Gómez-López A1, Barroso B1,2, Valverde-Monge M1,2, Cañas JA2,3, Rodrigo-Muñoz JM2,3, del Pozo V2,3, Sastre J1,2

1Allergy Department, Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain
2CIBER de Enfermedades Respiratorias (CIBERES), Madrid, Spain
3Immunoallergy Laboratory, Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS-FJD, UAM), Madrid

J Investig Allergol Clin Immunol 2025; Vol. 35(1)
doi: 10.18176/jiaci.1025

Key words: Tocilizumab, Biosimilar, Drug allergy