Locally Advanced/Metastatic Liver Cancer

This is an open, single-arm, investigator-initiated Phase I clinical trial to evaluate the safety, tolerability, and initial efficacy of BST02 injection in patients with locally advanced / metastatic liver cancer. This study includes a dose escalation study and a dose extension study, which will observe the effects of different IL-2 injection doses on the safety and efficacy of BST02. After signing the informed consent, the subjects will roughly go through two periods: the main study period and the long-term follow-up period. The main study period includes screening period, treatment and safety observation period, and follow-up period