RT Journal Article T1 Diagnosis of immediate reactions to amoxicillin: Comparison of basophil activation markers CD63 and CD203c in a prospective study A1 Céspedes Lagos, José Antonio A1 Fernández-Santamaría, Rubén A1 Ariza Veguillas, Adriana A1 Bogas Herrera, Gádor A1 Doña, Inmaculada A1 Rondón, Carmen A1 Salas, María A1 Labella, Marina A1 Frecha, Cecilia A1 Mayorga Mayorga, Cristobalina A1 Torres-Jaén, María Josefa A1 Fernández-Duarte, Tahía Diana K1 Agentes anticancerosos K1 Amoxicilina K1 Basófilos K1 Diágnosticos AB Amoxicillin (AX) combined or not with clavulanic acid (CLV) is frequently involved in IgE-mediated reactions. Drug provocation test (DPT) is considered as the gold standard for diagnosis, although contraindicated in high-risk patients. Basophil activation test (BAT) can help diagnose immediate reactions to beta-lactams, although controversy exists regarding the best activation marker. We have performed a real-life study in a prospective cohort to analyze the real value of BAT as diagnostic tool and the best activation marker, CD63 and CD203c, for the evaluation of immediate reactions to these drugs. PB Wiley YR 2022 FD 2022-12-07 LK https://hdl.handle.net/10630/26461 UL https://hdl.handle.net/10630/26461 LA eng NO Céspedes, J. A., Fernández‐Santamaría, R., Ariza, A., Bogas, G., Doña, I., Rondón, C., ... & Fernández, T. D. (2022). Diagnosis of immediate reactions to amoxicillin: Comparison of basophil activation markers CD63 and CD203c in a prospective study. Allergy. NO We thank Claudia Corazza for her invaluable English language support; Verónica Prados and Ana Molina for their help in technical support in flow cytometry methods. This work has been supported by Institute of Health “Carlos III” (ISCIII) of the Ministry of Economy and Competitiveness (MINECO; grants co-funded by European Regional Development Fund: PI15/01206, PI17/01237, PI18/00095, PI20/01734, RETICS ARADYAL RD16/0006/0001, and RICORS REI (RD21/0002/0008); Andalusian Regional Ministry of Health (grants PI-0241-2016, PE-0172-2018, and PI-0127-2020); Spanish Ministerio de Ciencia e Innovación Proyectos de I + D + I «Programación Conjunta Internacional», EuroNanoMed 2019 (PCI2019-111825-2)). AA holds a Senior Postdoctoral Contract (RH-0099-2020) with the Andalusian Regional Ministry of Health (cofunded by European Social Fund (ESF): "Andalucía se mueve con Europa". GB holds a “Juan Rodes” contract (JR18/00054) by ISCIII of MINECO (cofounded by ESF). ID holds a clinical research stabilization contract by Andalusian Regional Ministry of Health (RB-0001-2022). ML holds a “Rio Hortega” contract (CM20/00210) by ISCIII of MINECO (cofounded by ESF). CF holds a Marie Skłodowska-Curie Individual Fellowship by the European Union's Horizon 2020 research and innovation program (agreement n° PI-0241-2016101027955). CM holds a “Nicolas Monardes” research contract by Andalusian Regional Ministry of Health (RC-0004-2021). // Funding for open access charge: Universidad de Málaga / CBUA. DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 21 ene 2026