Multicentre biomarker cohort study on the efficacy of nivolumab treatment for gastric cancer
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Published:2020-07-03
Issue:6
Volume:123
Page:965-972
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ISSN:0007-0920
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Container-title:British Journal of Cancer
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language:en
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Short-container-title:Br J Cancer
Author:
Hagi Takaomi,Kurokawa Yukinori,Kawabata Ryohei,Omori Takeshi,Matsuyama Jin,Fujitani Kazumasa,Hirao Motohiro,Akamaru Yusuke,Takahashi Tsuyoshi,Yamasaki Makoto,Satoh Taroh,Eguchi Hidetoshi,Doki Yuichiro
Abstract
Abstract
Background
Predictive factors of nivolumab treatment response in patients with gastric cancer (GC) remain unclear.
Methods
In this retrospective cohort study, tissue specimens of patients with unresectable or recurrent GC and prior or scheduled treatment with nivolumab as third-line or higher therapy between September 2017 and February 2019 were collected from 23 institutions. The tumour-positive score (TPS) and combined positive score (CPS) of PD-L1 expression and mismatch repair (MMR) were analysed by immunohistochemistry. Associations between clinicopathological factors and tumour-response rate, hyperprogressive disease (HPD) rate and survival were assessed.
Results
Of 200 eligible patients, 143 had measurable lesions. The response and HPD rates were 17.5% and 22.1%, respectively. The response rate was significantly higher in patients with performance status (PS) 0–1 (P = 0.026), non-peritoneal metastasis (P = 0.021), PD-L1 TPS ≥ 1 (P = 0.012), CPS ≥ 5 (P = 0.007) or ≥ 10 (P < 0.001) or MMR deficiency (P < 0.001). The HPD rate was significantly higher in patients with PS 2–3 (P = 0.026), liver metastasis (P < 0.001) and CPS < 10 (P = 0.048). Multivariate analysis revealed that CPS (P = 0.001) and MMR (P = 0.002) were independent prognostic factors of progression-free survival, as well as liver metastasis (P < 0.001), peritoneal metastasis (P = 0.004) and CRP (P < 0.001).
Conclusions
PD-L1 CPS and MMR could be useful biomarkers for nivolumab treatment efficacy in GC.
Clinical trial registration
UMIN000032164.
Funder
This study was supported in part by the Supporting Center for Clinical Research and Education (SCCRE) and unrestricted research grant from Ono Pharmaceutical.
Publisher
Springer Science and Business Media LLC
Subject
Cancer Research,Oncology
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