TACE or Ablation Combined With Sintilimab and Ipilimumab N01 as Neoadjuvant Therapy for Resectable Hepatocellular Carcinoma With Intermediate-High Recurrence Risk

Hepatocellular carcinoma (HCC) is one of the leading causes of cancer-related mortality worldwide. The recurrence rate after curative resection for early-stage HCC remains extremely high, with 2-year and 5-year recurrence rates reaching 50% and 70%, respectively. Currently, no standard perioperative treatment is recommended in domestic and international guidelines.

Recently, data from a phase III clinical study, investigating neoadjuvant and adjuvant therapy with camrelizumab plus apatinib in resectable HCC patients at intermediate-to-high risk of recurrence, demonstrated that the neoadjuvant and adjuvant therapy combining targeted therapy and immunotherapy could significantly reduce postoperative recurrence. The median recurrence-free survival (RFS) in the target-immunotherapy group was 42.1 months, which was remarkably longer than 19.4 months in the surgery-alone group.

Local therapies (TACE, ablation) can induce immunogenic cell death of tumors and remodel the tumor microenvironment, thereby exerting synergistic effects with immunotherapy. This strategy is expected to further improve recurrence-free survival in HCC patients after surgery.

This clinical trial aims to explore the efficacy and tolerability of the following regimens compared with surgery alone:

1. TACE or ablation combined with anti-CTLA-4 and anti-PD-1 immunotherapy; 2. TACE or ablation combined with anti-CTLA-4 + anti-PD-1 + lenvatinib; 3. Dual immunotherapy with anti-CTLA-4 and anti-PD-1; 4. Anti-CTLA-4 + anti-PD-1 + lenvatinib. Efficacy differences between groups will be compared using Bayesian statistical methods based on non-informative priors.