A Study of Atezolizumab in Combination With Bevacizumab Compared With Sorafenib in Patients With Untreated Locally Advanced or Metastatic Hepatocellular Carcinoma

Open to people ages 18 years and up

• Locally advanced or metastatic and/or unresectable Hepatocellular Carcinoma (HCC)
• No prior systemic therapy for HCC. Previous use of herbal therapies/traditional Chinese medicines with anti-cancer activity included in the label is allowed, provided that these medications are discontinued prior to randomization.
• At least one measurable untreated lesion
• ECOG Performance Status of 0 or 1
• Adequate hematologic and end-organ function
• For women of childbearing potential: agreement to remain abstinent
• For men: agreement to remain abstinent
• Child-Pugh class A

• History of leptomeningeal disease
• Active or history of autoimmune disease or immune deficiency
• History of idiopathic pulmonary fibrosis, organizing pneumonia, drug-induced pneumonitis, or idiopathic pneumonitis, or evidence of active pneumonitis on screening chest computed tomography scan
• Known active tuberculosis
• History of malignancy other than HCC within 5 years prior to screening, with the exception of malignancies with a negligible risk of metastasis or death
• Pregnancy or breastfeeding, or intention of becoming pregnant during study treatment or within at least 5 months after the last dose of atezolizumab, 6 months after the last dose of bevacizumab, or 1 month after the last dose of sorafenib
• Known fibrolamellar HCC, sarcomatoid HCC, or mixed cholangiocarcinoma and HCC
• Untreated or incompletely treated esophageal and/or gastric varices with bleeding or high-risk for bleeding
• A prior bleeding event due to esophageal and/or gastric varices within 6 months prior to initiation of study treatment.
• Moderate or severe ascites
• History of hepatic encephalopathy
• Co-infection of HBV and HCV
• Symptomatic, untreated, or actively progressing central nervous system (CNS) metastases
• Uncontrolled tumor-related pain
• Uncontrolled pleural effusion, pericardial effusion, or ascites requiring recurrent drainage procedures
• Uncontrolled or symptomatic hypercalcemia
• Treatment with systemic immunostimulatory agents
• Inadequately controlled arterial hypertension
• Prior history of hypertensive crisis or hypertensive encephalopathy
• Evidence of bleeding diathesis or significant coagulopathy
• History of intestinal obstruction and/or clinical signs or symptoms of GI obstruction including sub-occlusive disease related to the underlying disease or requirement for routine parenteral hydration
• Serious, non-healing or dehiscing wound, active ulcer, or untreated bone fracture
• Metastatic disease that involves major airways or blood vessels, or centrally located mediastinal tumor masses
• Local therapy to liver within 28 days prior to initiation of study treatment or non-recovery from side effects of any such procedure
• Chronic daily treatment with a non-steroidal anti-inflammatory drug (NSAID)