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. 2025 Sep 17:S0168-8278(25)02471-7.
doi: 10.1016/j.jhep.2025.08.035. Online ahead of print.

Nivolumab plus ipilimumab for potentially resectable hepatocellular carcinoma: long-term efficacy and biomarker exploration

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Free article

Nivolumab plus ipilimumab for potentially resectable hepatocellular carcinoma: long-term efficacy and biomarker exploration

Yih-Jyh Lin et al. J Hepatol. .
Free article

Abstract

Background and aims: Immune checkpoint inhibitor-based combination therapy has demonstrated high objective response rates in patients with hepatocellular carcinoma (HCC) and might improve clinical outcome as neoadjuvant or perioperative therapy. This study evaluated the efficacy and safety of nivolumab plus ipilimumab in patients with potentially resectable HCC and explored predictive biomarkers of treatment response.

Methods: Eligible patients received nivolumab (3 mg/kg) plus ipilimumab (1 mg/kg) every 3 weeks. Tumor response was assessed after two and four treatment cycles. Patients then proceeded to curative surgery or alternative treatments according to clinical guidelines. Serial tumor and peripheral blood samples were collected for genomic and transcriptomic analyses and immune cell profiling.

Results: Among the 43 enrolled patients (men/women: 37/6; viral/non-viral 41/2; Barcelona Clinic Liver Cancer stage A/B/C: 4/13/26; median tumor size: 8.7 cm), 24 underwent surgery, and eight achieved a major pathological response (>90% tumor necrosis). The estimated 4-year progression-free survival and overall survival rates were 44% (95% confidence interval [CI], 28-59%) and 60% (95% CI, 42-74%), respectively. Increased interferon-γ and tertiary lymphoid structure (TLS) signatures in resected tumors were associated with objective response. In a mouse liver cancer model, B cell depletion abolished the efficacy of anti-programmed death-1 plus anti-cytotoxic T lymphocyte-associated protein 4 therapy, supporting the mechanistic role of TLS. Peripheral blood T cell activation and exhaustion at baseline and post-immunotherapy, assessed using spectral flow cytometry and deep learning algorithms, correlated with response and survival.

Conclusions: Neoadjuvant nivolumab plus ipilimumab followed by surgery is feasible and might improve long-term survival in patients with potentially resectable HCC. Immunotherapy-induced TLS formation is associated with enhanced antitumor immunity.

Clinical trial number: NCT03510871.

Keywords: T cell exhaustion; dendritic cells; neoadjuvant; peripheral blood mononuclear cells; tertiary lymphoid structure.

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Conflict of interest statement

Declaration of Competing Interest CH received research fundings (to the institution) from Bristol-Myers Squibb/ ONO, GoldenBiotech, IPSEN, Roche and honorarium from AstraZeneca, Bristol-Myers Squibb/ONO, Eisai, MSD, and Roche. ALC received research fundings (to the institution) from Pilatus Biosciences Inc, and consulting fees from AstraZeneca, Bayer, BeiGene, Bristol Myers Squibb, Genentech/Roche, Ipsen Innovation, Eisai, Ono Pharmaceutical, Sanofi, Omega Therapeutics and MSD, and honoraria for lectures, presentations, speakers bureaus, from Amgen Taiwan, Roche, and Ipsen Innovation, support for attending meetings and/or travel from Roche and AstraZeneca, participation on a Data Safety Monitoring Board or Advisory Board from Abbisko, and independent director for TTY Biopharma. LTC received research fundings (to the institution) from Ono Pharmaceutical, and consulting fees from Academab Biomedical Inc., and honoraria for lectures, presentations, speakers bureaus, from AstraZeneca, Astellas, Ono Pharmaceutical, and TTY Biopharma, participation on a Data Safety Monitoring Board or Advisory Board from AstraZeneca, Astellas, MSD, Ono Pharmaceutical, and TTY Biopharma. Other authors have no relevant conflict of interests to declare.

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