This study aims to evaluate the effectiveness and safety of a combination therapy with Fuxinqibai monoclonal antibody, Tislelizumab, and Lenvatinib in patients with advanced, unresectable TP53-mutated hepatocellular carcinoma (HCC) who have previously failed systemic immunotherapy.
Eligible patients will receive:
Fuxinqibai 200 mg IV every 3 weeks Tislelizumab 200 mg IV every 3 weeks Lenvatinib 8 mg (≤60 kg) or 12 mg (\>60 kg) orally once daily Treatment will continue until disease progression, unacceptable toxicity, start of a new anticancer therapy, withdrawal of consent, or other protocol-defined reasons. Tumor response will be evaluated by RECIST v1.1 every 6 weeks, and confirmed after 4 weeks if response is observed.
Safety will be monitored through adverse events and laboratory tests, graded according to NCI CTCAE v5.0. After treatment ends, patients will be followed every 6 weeks for tumor assessment and every 12 weeks for survival, until death, loss to follow-up, or withdrawal of consent.
Primary Objective: To assess the objective response rate (ORR) of the combination therapy.
Secondary Objectives: To evaluate overall efficacy, safety, and explore potential biomarkers predicting treatment response.