Evidence map›Paper›PMID 42358679›Full record

ArticleFrontiers in endocrinology2026

Association between HLA-DRB1*04:05 and the efficacy of immune checkpoint inhibitors for patients with advanced cancer.

Mayu Watanabe, Jun Eguchi, Atsushi Takamoto, Jun Wada

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Article in Frontiers in endocrinology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Mayu WatanabeDepartment of Diabetology and Endocrinology, NHO Okayama Medical Center, Okayama, Japan.
Jun EguchiDepartment of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Atsushi TakamotoDepartment of Urology, Fukuyama City Hospital, Hiroshima, Japan.
Jun WadaDepartment of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: Tumor cells use immune checkpoint proteins such as programmed cell death 1 to escape immunological defenses. Immune checkpoint inhibitors (ICIs) that target these proteins have been used to treat several malignancies. ICI-induced diabetes is a rare but life-threatening adverse event. Our previous study evaluated pancreatic β-cell activity using the homeostasis model assessment of β-cell (HOMA-β) function before ICI treatment and demonstrated its association with treatment outcomes. In addition, DRB1*04:05 and DRB1*09:01 reportedly increase the risk of type 1 diabetes in Japanese patients, whereas DRB1*15:01 protected against type 1 diabetes. However, the association between human leukocyte antigen (HLA) class II alleles and treatment outcomes of ICI therapy remains unclear. Methods: We included 96 patients who were diagnosed with advanced cancer. The HLA genotypes that cause type 1 diabetes in patients with ICI-treated cancers were evaluated to determine their association with the cancer prognosis. Results: The median progression-free survival (PFS) in the DRB1*04:05-positive group (2 months, 95% confidence interval [CI]: 1.214-2.786; 31 events; 1 censored event) was significantly shorter than that in the DRB1*04:05-negative group (3 months; 95% CI: 1.933-4.067; 56 events; 8 censored events) (log rank p=0.045). Additionally, a multivariable Cox proportional hazards regression revealed that DRB1*04:05 was independently associated with shorter PFS for patients treated with ICIs. Conclusions: HLA class II alleles were associated with shorter PFS in patients treated with ICIs. In particular, DRB1*04:05 positivity was associated with worse survival outcomes, suggesting a potential immunogenetic contribution to treatment outcomes.

Indexed as

Diabetes Mellitus, Type 1HLA-DRB1 ChainsImmune Checkpoint InhibitorsNeoplasmsAdultAgedAllelesFemaleGenotypeHumansMaleMiddle AgedPrognosisTreatment OutcomeHLA-DRB1*04 antigenHLA-DRB1 ChainsImmune Checkpoint Inhibitorsanti-PD1 immune checkpoint inhibitorshuman leukocyte antigen class II allelesprogression-free survivaltreatment responsetype 1 diabetes

Identifiers

PMID42358679
PMCPMC13290528

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.