Class I HLA Alleles Are Associated With an Increased Risk of Osimertinib-Induced Hypersensitivity

Chun Bing Chen, Chuang Wei Wang, Chun Wei Lu, Wei Ti Chen, Bing Rong Zhou, Chia Yu Chu, Shang Fu Hsu, Cheng-Ta Yang, John Wen-Cheng Chang, Chan Keng Yang, Chih Liang Wang, Yueh Fu Fang, Ping Chih Hsu, Chung Ching Hua, Chiao En Wu, How Wen Ko, Kun Chieh Chen, Yi Chien Yang, Han Chi Tseng, An Yu ChengLi Chuan Tseng, Feng Ya Shih, Shuen Iu Hung, Cheng Yang Huang*, Wen-Hung Chung*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

Abstract

BACKGROUND: Osimertinib, a third-generation epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI), shows superior lung cancer treatment efficacy. However, osimertinib-induced severe hypersensitivity, including Stevens-Johnson syndrome (SJS)/toxic epidermal necrolysis (TEN), is frequently observed in Asian populations and hinders cancer treatment.

OBJECTIVE: We investigated the genetic HLA predisposition and immune pathomechanism of osimertinib-induced hypersensitivity.

METHODS: We enrolled 17 patients with osimertinib-induced delayed hypersensitivity (seven with severe SJS/TEN and 10 with mild maculopapular exanthema), 98 osimertinib-tolerant subjects, and 2,123 general population controls. We performed HLA genotyping, drug-induced lymphocyte activation test, and surface plasmon resonance assay.

RESULTS: HLA-B∗51:02 was present in 83.3% of osimertinib-induced SJS/TEN patients but in only 3.3% of the general population controls (P = 2.8 × 10 -7; corrected P = 6.9 × 10 -6; odds ratio [OR] = 146), and 0% of osimertinib-tolerant controls (P = 6.5 × 10 -8; corrected P = 1.6 × 10 -6; OR = 707). The association of HLA-B∗51:01 and HLA-A∗24:02 with osimertinib-induced maculopapular exanthema patients, rather than with osimertinib-tolerant subjects (P = .002, OR = 15.7 for HLA-B∗51:01; and P = .003, OR = 9.5 for HLA-A∗24:02), was identified as a phenotype-specific association. Granulysin, the SJS/TEN-specific cytotoxic protein, was significantly higher in plasma of SJS/TEN patients (39.8 ± 4.5 ng/mL; P < .001) and in in vitro lymphocyte activation test (sensitivity = 83.3%; P < .01) compared with tolerant controls. Patients with osimertinib-induced hypersensitivity appeared to tolerate alternative EGFR-TKIs. Surface plasmon resonance results also confirmed that HLA-B∗51:02 protein has a higher binding affinity for osimertinib and lower or no affinity for other EGFR-TKIs.

CONCLUSIONS: HLA-B∗51:02 frequently occurs in Asian populations and is strongly associated with osimertinib-induced SJS/TEN. Our findings suggest HLA-B∗51:02 screening as a preemptive test to reduce osimertinib-induced severe hypersensitivity.

Original languageEnglish
Pages (from-to)143-154.e10
JournalJournal of Allergy and Clinical Immunology: In Practice
Volume13
Issue number1
Early online date04 11 2024
DOIs
StateE-pub ahead of print - 04 11 2024

Bibliographical note

Copyright © 2024 American Academy of Allergy, Asthma & Immunology. Published by Elsevier Inc. All rights reserved.

Keywords

  • HLA-B∗51:02
  • Hypersensitivity
  • Osimertinib
  • Stevens-Johnson syndrome
  • Toxic epidermal necrolysis

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