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PD-1 inhibitors plus anti-angiogenic therapy with or without intensity-modulated radiotherapy for advanced hepatocellular carcinoma: A propensity score matching study

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机构: [1]Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, China. [2]Department of Ophthalmology, The Affiliated Hospital of Southwest Medical University, Luzhou, China. [3]Clinical Research Institute, The Affiliated Hospital of Southwest Medical University, Luzhou, China. [4]Department of Radiology, The Affiliated Hospital of Southwest Medical University, Luzhou, China. [5]Department of Oncology, 363 Hospital, Chengdu, China. [6]Department of Geriatric Cardiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China. [7]Department of General Surgery (Hepatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, China. [8]Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou, China. [9]Academician (Expert) Workstation of Sichuan Province, Luzhou, China. [10]Department of Radiotherapy, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China. [11]Clinical Medical College, Southwest Medical University, Luzhou, China. [12]Clinical Skills Center, The Affiliated Hospital of Southwest Medical University, Luzhou, China.
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Whether intensity-modulated radiotherapy (IMRT) can enhance the efficacy of the programmed death (PD)-1 inhibitors combined with anti-angiogenic therapy for hepatocellular carcinoma (HCC) is unclear. Therefore, we conducted this multicenter retrospective study to investigate the efficacy of the combination of PD-1 inhibitors with anti-angiogenic therapy and IMRT.From April 2019 to March 2022, a total of 197 patients with HCC [combination of PD-1 inhibitors with anti-angiogenic therapy and IMRT (triple therapy group), 54; PD-1 inhibitors plus anti-angiogenic therapy (control group), 143] were included in our study. Propensity score matching (PSM) was applied to identify two groups with similar baselines. The objective response rate (ORR), overall survival (OS), and progression-free survival (PFS) of the two groups were compared before and after matching.Prior to PSM, the triple therapy group had higher ORR (42.6% vs 24.5%, P = 0.013) and more superior median OS (mOS) (20.1 vs 13.3 months, P = 0.009) and median PFS (mPFS) (8.7 vs 5.4 months, P = 0.001) than the control group. Following PSM, the triple therapy group still exhibited better mPFS (8.7 vs 5.4 months, P = 0.013) and mOS (18.5 vs 12.6 months, P = 0.043) than the control group. However, the ORR of the two groups was similar (40% vs 25%, P = 0.152). No significant difference was observed in the treatment-related adverse events between the two groups (P < 0.05 for all).The combination of PD-1 inhibitors with anti-angiogenic therapy and IMRT for HCC is a promising regimen.Copyright © 2022 Su, Guo, Ma, Wang, Xie, Rao, Zhang, Li, Wen, Li, Yang, Song, Huang, Chi, Gu, Xu, Liu, Chen, Wu, Jiang, Li, Zeng, Wang, Feng, Chen, Yang, Jin, He and Han.

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大类 | 2 区 医学
小类 | 2 区 免疫学
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大类 | 2 区 医学
小类 | 2 区 免疫学
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Q1 IMMUNOLOGY
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Q1 IMMUNOLOGY

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第一作者机构: [1]Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.
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通讯机构: [1]Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, China. [8]Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou, China. [9]Academician (Expert) Workstation of Sichuan Province, Luzhou, China.
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