Phase 2 Study of SBRT Plus Tislelizumab and Regorafenib in Unresectable or Oligometastatic HCC

Inclusion criteria

• age ≥ 18 years
• Eastern Cooperative Oncology Group performance status of 0-1
• clinical or pathological diagnosis of HCC
• with unresectable locally advanced or oligometastatic HCC (metastatic lesions ≤ 5, metastatic organs ≤ 3, may involve extrahepatic lymph nodes or distant organs apart from brain)
• at least one measurable lesion according to mRECIST criteria
• all lesions could be included in radiation target volume
• Child-Pugh A or B (7 scores) liver function
• patients are allowed to receive systemic therapy previously other than tislelizumab plus regorafenib
• adequate hematological and renal function
• life expectancy ≥ 3 months；
• willing to participate in the study and give written informed consent

Exclusion criteria

• a history of liver transplantation
• with severe cirrhosis complications, including a history of esophagogastric variceal bleeding, hepatic encephalopathy, and massive ascites
• with active autoimmune diseases or a history of autoimmune disease
• with human immunodeficiency virus (HIV) infection or acquired immunodeficiency syndrome (AIDS)
• allergic to the ingredient of tislelizumab or regorafenib
• with recurrent lesions treated with radiotherapy previously
• prescribed radiation does could not be delivered due to dose limits to organs at risk (OAR)
• intolerable to radiation or systemic treatment because of cardiac insufficiency, uncontrolled high blood pressure
• a history of other malignancies, except cured basal cell or squamous cell skin cancer or carcinoma in situ of the cervix