RT Journal Article T1 Drug-Induced Liver Injury due to Flucloxacillin: Relevance of Multiple Human Leukocyte Antigen Alleles. A1 Nicoletti, Paola A1 Aithal, Guruprasad P A1 Chamberlain, Thomas C A1 Coulthard, Sally A1 Alshabeeb, Mohammad A1 Grove, Jane I A1 Andrade, Raul J A1 Bjornsson, Einar A1 Dillon, John F A1 Hallberg, Par A1 Lucena, M Isabel A1 Maitland-van der Zee, Anke H A1 Martin, Jennifer H A1 Molokhia, Mariam A1 Pirmohamed, Munir A1 Wadelius, Mia A1 Shen, Yufeng A1 Nelson, Matthew R A1 Daly, Ann K K1 Anti-bacterial agents K1 Liver injury K1 Floxacillin K1 HLA-B antigens AB Some patients prescribed flucloxacillin (~ 0.01%) develop drug-induced liver injury (DILI). HLA-B*57:01 is an established genetic risk factor for flucloxacillin DILI. To consolidate this finding, identify additional genetic factors, and assess relevance of risk factors for flucloxacillin DILI in relation to DILI due to other penicillins, we performed a genomewide association study involving 197 flucloxacillin DILI cases and 6,835 controls. We imputed single-nucleotide polymorphism and human leukocyte antigen (HLA) genotypes. HLA-B*57:01 was the major risk factor (allelic odds ratio (OR) = 36.62; P = 2.67 × 10-97 ). HLA-B*57:03 also showed an association (OR = 79.21; P = 1.2 × 10-6 ). Within the HLA-B protein sequence, imputation showed valine97 , common to HLA-B*57:01 and HLA-B*57:03, had the largest effect (OR = 38.1; P = 9.7 × 10-97 ). We found no HLA-B*57 association with DILI due to other isoxazolyl penicillins (n = 6) or amoxicillin (n = 15) and no significant non-HLA signals for any penicillin-related DILI. PB Wiley YR 2018 FD 2018-12-13 LK http://hdl.handle.net/10668/13436 UL http://hdl.handle.net/10668/13436 LA en NO Nicoletti P, Aithal GP, Chamberlain TC, Coulthard S, Alshabeeb M, Grove JI, et al. Drug-Induced Liver Injury due to Flucloxacillin: Relevance of Multiple Human Leukocyte Antigen Alleles. Clin Pharmacol Ther. 2019 Jul;106(1):245-253 DS RISalud RD Apr 6, 2025