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SYSTEMATIC REVIEW article

Front. Immunol.

Sec. Cancer Immunity and Immunotherapy

This article is part of the Research TopicPersonalized Immuno-Oncology: The Impact of Age and Sex on Anti-Tumor Immune ResponsesView all 3 articles

Survival Benefits of Different Immunotherapies for Hepatocellular Carcinoma: A Meta-Analysis Highlighting Age, Gender, Etiology, and Tumor Burden

Provisionally accepted
Mingcheng  GuanMingcheng Guan1,2*Na  LiNa Li1Qian  DingQian Ding1Di  SunDi Sun1Hao  LiHao Li1Mei  YangMei Yang3Lei  HongLei Hong4Hong  ZhuHong Zhu1
  • 1First Affiliated Hospital of Soochow University, Suzhou, China
  • 2Affiliated Hospital of Jiangnan University, Wuxi, China
  • 3Soochow University, Suzhou, China
  • 4The Affiliated Suzhou Science and Technology Town Hospital of Nanjing Medical University, Suzhou, China

The final, formatted version of the article will be published soon.

Background: The heterogeneous efficacy of immunotherapy in hepatocellular carcinoma (HCC) remains unclear. We evaluated efficacy and safety of various immunotherapeutic regimens—including immune checkpoint inhibitor (ICI) monotherapy, dual ICIs, and ICI plus targeted therapy—for unresectable HCC, to identify patient subgroups that benefit most. Methods: Randomized clinical trial evaluating immunotherapy as first-line treatment for unresectable HCC versus tyrosine kinase inhibitors (TKIs) were systematically searched. Pooled hazard ratios (HRs) for overall survival (OS) and progression-free survival (PFS), and odds ratios (ORs) for objective response rate (ORR), disease control rate (DCR), and treatment-related adverse events (TRAEs) were calculated. Results: Twelve trials were included. Immunotherapy significantly improved OS (HR=0.77 [0.71-0.83]) and PFS (HR=0.73 [0.63-0.84]) versus TKIs. ICI plus targeted therapy showed the greatest benefit, reducing mortality by 27% and progression risk by 37%. Subgroup analyses revealed patients aged ≥65 years and male patients derived substantial OS and PFS benefits, particularly from ICI plus targeted therapy, whereas younger patients (<65 years) benefited more from dual ICIs. Additional favorable subgroups included Asian patients, HBV-positive patients, those with poor performance status, macrovascular invasion and/or extrahepatic spread, and Barcelona Clinic Liver Cancer stage C. Notably, female patients showed no significant OS improvement across any regimen. Moreover, non-Asian patients, those with hepatitis C, BCLC stage B, or AFP <400 ng/mL derived limited immunotherapy benefit across regimens. Conclusions: Immunotherapy improves survival in unresectable HCC, with

Keywords: Hepatocellular Carcinoma, Immunotherapy, subgroup analysis, age, gender, Meta-analysis, Immune checkpoint inhibitor

Received: 25 Sep 2025; Accepted: 27 Nov 2025.

Copyright: © 2025 Guan, Li, Ding, Sun, Li, Yang, Hong and Zhu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Mingcheng Guan

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