PMID- 33031633 OWN - NLM STAT- MEDLINE DCOM- 20210924 LR - 20240330 IS - 2328-9503 (Electronic) IS - 2328-9503 (Linking) VI - 7 IP - 11 DP - 2020 Nov TI - HLA-B27 association of autoimmune encephalitis induced by PD-L1 inhibitor. PG - 2243-2250 LID - 10.1002/acn3.51213 [doi] AB - OBJECTIVE: While immune checkpoint inhibitors are increasingly used for various cancers, unpredictable immune-related adverse events (irAEs) such as autoimmune encephalitis is life-threatening. Here, we report an association between human leukocyte antigen (HLA) and atezolizumab-induced encephalitis. METHODS: From an institutional prospective cohort for encephalitis, we identified patients with autoimmune encephalitis after the use of atezolizumab, a PD-L1 (programmed death-ligand 1) inhibitor, from August 2016 to September 2019 and analyzed their HLA genotypes. RESULTS: A total of 290 patients received atezolizumab, and seven patients developed autoimmune encephalitis, and five of whom were enrolled for the analysis. The patients presented altered mentality, seizures, or myelitis. Three patients had the HLA-B*27:05 genotype in common (60%), which is significantly frequent given its low frequency in the general population (2.5%). After Bonferroni correction, HLA-B*27:05 was significantly associated with autoimmune encephalitis by atezolizumab (corrected P < 0.001, odds ratio 59, 95% CI = 9.0 ~ 386.9). INTERPRETATION: Here we found that three in five patients with autoimmune encephalitis associated with atezolizumab had the rare HLA-B*27:05 genotype. Further systematic analyses in larger cohorts are necessary to investigate the value of HLA screening to prevent the life-threatening adverse events. CI - (c) 2020 The Authors. Annals of Clinical and Translational Neurology published by Wiley Periodicals LLC on behalf of American Neurological Association. FAU - Chang, Hyeyeon AU - Chang H AUID- ORCID: 0000-0001-6939-7913 AD - Department of Neurology, Seoul National University Hospital, Seoul, Republic of Korea. AD - Department of Neurology, Konyang University Hospital, Deajeon, Republic of Korea. FAU - Shin, Yong-Won AU - Shin YW AUID- ORCID: 0000-0002-6781-7782 AD - Department of Neurology, Seoul National University Hospital, Seoul, Republic of Korea. AD - Center for Hospital Medicine, Seoul National University Hospital, Seoul, Republic of Korea. AD - Department of Neurosurgery, Seoul National University Hospital, Seoul, Republic of Korea. FAU - Keam, Bhumsuk AU - Keam B AUID- ORCID: 0000-0001-8196-4247 AD - Department of Internal Medicine, Seoul National University Hospital, Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea. FAU - Kim, Miso AU - Kim M AUID- ORCID: 0000-0002-4064-4199 AD - Department of Internal Medicine, Seoul National University Hospital, Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea. FAU - Im, Seock-Ah AU - Im SA AUID- ORCID: 0000-0002-5396-6533 AD - Department of Internal Medicine, Seoul National University Hospital, Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea. FAU - Lee, Soon-Tae AU - Lee ST AUID- ORCID: 0000-0003-4767-7564 AD - Department of Neurology, Seoul National University Hospital, Seoul, Republic of Korea. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20201008 PL - United States TA - Ann Clin Transl Neurol JT - Annals of clinical and translational neurology JID - 101623278 RN - 0 (Antibodies, Monoclonal, Humanized) RN - 0 (HLA-B27 Antigen) RN - 0 (Immune Checkpoint Inhibitors) RN - 52CMI0WC3Y (atezolizumab) SB - IM MH - Adult MH - Antibodies, Monoclonal, Humanized/*adverse effects MH - Autoimmune Diseases of the Nervous System/*chemically induced/genetics MH - Encephalitis/*chemically induced/genetics MH - Female MH - HLA-B27 Antigen/*genetics MH - Humans MH - Immune Checkpoint Inhibitors/*adverse effects MH - Male MH - Neoplasms/*drug therapy MH - Prospective Studies PMC - PMC7664281 COIS- Patent pending for the HLA analysis to predict CNS-irAE (H.C., and S.-T.L.). Seock-Ah Im received a research grant from AstraZeneca, Pfizer and Roche outside of the current work and have advisory role for AstraZeneca, Amgen, Eisai, Hanmi Corp. Lilly, Novartis, Pfizer, and Roche outside of the current work. Soon-Tae Lee have an advisory role for Ono Pharmaceuticals and received research grants from GC Pharma outside of the current work. EDAT- 2020/10/09 06:00 MHDA- 2021/09/25 06:00 PMCR- 2020/10/08 CRDT- 2020/10/08 17:15 PHST- 2020/04/29 00:00 [received] PHST- 2020/08/26 00:00 [revised] PHST- 2020/09/12 00:00 [accepted] PHST- 2020/10/09 06:00 [pubmed] PHST- 2021/09/25 06:00 [medline] PHST- 2020/10/08 17:15 [entrez] PHST- 2020/10/08 00:00 [pmc-release] AID - ACN351213 [pii] AID - 10.1002/acn3.51213 [doi] PST - ppublish SO - Ann Clin Transl Neurol. 2020 Nov;7(11):2243-2250. doi: 10.1002/acn3.51213. Epub 2020 Oct 8.