Iparomlimab/Tuvonralimab Plus SBRT and Lenvatinib for Perioperative Treatment of Potentially Resectable Intermediate-Stage HCC

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• Unable to comply with the study protocol or study procedures;· Histologically or cytologically confirmed fibrolamellar hepatocellular carcinoma, sarcomatoid hepatocellular carcinoma, cholangiocarcinoma, combined hepatocellular-cholangiocarcinoma (mixed hepatocellular carcinoma), or other similar types; · Presence of extrahepatic metastatic lesions; · History of liver transplantation, or planned liver transplantation; · Evidence of central nervous system metastasis, and/or patients with carcinomatous meningitis; · History of hypersensitivity to the study drug or its formulation components, or known allergic diathesis; · Co-infection with hepatitis B virus (HBV) and hepatitis C virus (HCV); · Presence of ascites requiring clinical intervention, or uncontrolled pleural effusion, pericardial effusion of moderate or greater amount, etc., as confirmed by screening examinations; · History of esophageal or gastric variceal bleeding due to portal hypertension within 6 months prior to the first dose of study drug, or known severe varices on endoscopy within 3 months prior to the first dose of study drug; · Current interstitial pneumonia or interstitial lung disease, or history of interstitial pneumonia or interstitial lung disease requiring corticosteroid treatment, or other pulmonary fibrosis or organizing pneumonia that may interfere with the assessment and management of immune-related pulmonary toxicity; · Obvious bleeding tendency or other evidence of significant coagulation disorders; · History of severe cardiovascular or cerebrovascular disease; · History of other malignancies within 5 years prior to enrollment, except for radically resected basal cell carcinoma, squamous cell carcinoma of the skin, or cervical carcinoma in situ; · Active autoimmune disease within 4 weeks prior to enrollment, or history of autoimmune disease; · Prior allogeneic bone marrow transplantation or organ transplantation; · Patients considered by the investigator to be unsuitable for enrollment in this study.

• Able to understand and voluntarily sign the informed consent form for this study. · Age ≥18 years old, male and female. · Pathologically or clinically confirmed potentially resectable intermediate-stage hepatocellular carcinoma (stage IIIa). · ECOG performance status of 0-1; · Child-Pugh score <7. · No prior anti-tumor treatment; · Expected survival ≥3 months; · At least one measurable target lesion confirmed by imaging examination during the screening period, according to RECIST v1.1 criteria; · Adequate organ and bone marrow function within 7 days prior to the first administration of study drug.· If HBV or HCV infection is present, the patient must be receiving regular treatment.· Fertile eligible patients must agree to use reliable contraceptive methods with their partner during the trial and for at least 180 days after the last dose of study drug.