Cancer immunology, immunotherapy : CII · 2024
Efficacy and safety of lenvatinib combined with anti-PD-1 antibodies plus GEMOX chemotherapy as non-first-line systemic therapy in advanced gallbladder cancer.
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Tan Yang, Liu Kai, Zhu Chengpei, Wang Shanshan, Wang Yunchao, Xue Jingnan, Ning Cong, Zhang Nan, Chao Jiashuo, Zhang Longhao, Long Junyu, Yang Xiaobo, Zeng Daobing, Zhao Lijin, Zhao Haitao
Аннотация
BACKGROUND: Lenvatinib, programmed cell death 1 (PD-1) antibodies, and gemcitabine and oxaliplatin (GEMOX) chemotherapy have shown significant antitumor activity as first-line therapy against biliary tract cancer. This study evaluated their efficacy and safety as non-first-line therapy in advanced gallbladder cancer (GBC).
METHODS: Patients with advanced GBC who received lenvatinib combined with anti-PD-1 antibodies and GEMOX chemotherapy as a non-first-line therapy were retrospectively analyzed. The primary endpoints were overall survival (OS) and progression-free survival (PFS), and the secondary endpoints were objective response rate (ORR) and safety.
RESULTS: A total of 36 patients with advanced GBC were included in this study. The median follow-up time was 11.53 (95% confidence interval (CI): 2.2-20.9) months, and the ORR was 36.1%. The median OS and PFS were 15.1 (95% CI: 3.2-26.9) and 6.1 (95% CI: 4.9-7.2) months, respectively. The disease control rate (DCR) and clinical benefit rate (CBR) were 75% and 61.1%, respectively. Subgroup analysis demonstrated that patients with programmed cell death-ligand 1 (PD-L1) expression had significantly longer PFS and OS than those without PD-L1 expression. Additionally, patients with a neutrophil-lymphocyte ratio (NLR) < 5.57 had a longer OS than those with an NLR ≥ 5.57. All patients experienced adverse events (AEs), with 61.1% experiencing grade 3 or 4 AEs, including myelosuppression (13.9%) and fatigue (13.3%), alanine transaminase or aspartate transaminase levels (8.3%), and diarrhea (8.3%). No grade 5 AEs were reported.
CONCLUSION: Anti-PD-1 antibodies combined with lenvatinib and GEMOX chemotherapy are effective and well-tolerated as a non-first-line therapy in advanced GBC. PD-L1 expression and baseline NLR may potentially predict treatment efficacy.
METHODS: Patients with advanced GBC who received lenvatinib combined with anti-PD-1 antibodies and GEMOX chemotherapy as a non-first-line therapy were retrospectively analyzed. The primary endpoints were overall survival (OS) and progression-free survival (PFS), and the secondary endpoints were objective response rate (ORR) and safety.
RESULTS: A total of 36 patients with advanced GBC were included in this study. The median follow-up time was 11.53 (95% confidence interval (CI): 2.2-20.9) months, and the ORR was 36.1%. The median OS and PFS were 15.1 (95% CI: 3.2-26.9) and 6.1 (95% CI: 4.9-7.2) months, respectively. The disease control rate (DCR) and clinical benefit rate (CBR) were 75% and 61.1%, respectively. Subgroup analysis demonstrated that patients with programmed cell death-ligand 1 (PD-L1) expression had significantly longer PFS and OS than those without PD-L1 expression. Additionally, patients with a neutrophil-lymphocyte ratio (NLR) < 5.57 had a longer OS than those with an NLR ≥ 5.57. All patients experienced adverse events (AEs), with 61.1% experiencing grade 3 or 4 AEs, including myelosuppression (13.9%) and fatigue (13.3%), alanine transaminase or aspartate transaminase levels (8.3%), and diarrhea (8.3%). No grade 5 AEs were reported.
CONCLUSION: Anti-PD-1 antibodies combined with lenvatinib and GEMOX chemotherapy are effective and well-tolerated as a non-first-line therapy in advanced GBC. PD-L1 expression and baseline NLR may potentially predict treatment efficacy.