Summary
This clinical trial is testing new treatment options for people with advanced liver cancer (also called hepatocellular carcinoma, or HCC).
The study is for people whose cancer is locally advanced, metastatic and/or unable to be removed with surgery (unresectable), whose cancer cannot be treated with surgery or other local treatments. Participants must not have received prior systemic therapy for their intermediate, advanced, or metastatic disease.
The study is looking at how safe and effective an immunotherapy medicine called rilvegostomig is when used:
- together with bevacizumab targeted therapy, and
- either with or without another immunotherapy called tremelimumab.
The study compares these new treatment combinations with the current standard treatment of atezolizumab plus bevacizumab.
Study structure
Before the main study starts, a small group of participants will receive rilvegostomig + bevacizumab + tremelimumab in a safety lead-in phase to determine it is safe and tolerable.
After safety is confirmed, participants will be enrolled in the randomised phase where participants will be randomly assigned (by chance) to one of three treatment groups:
- Rilvegostomig + bevacizumab
- Rilvegostomig + bevacizumab + tremelimumab
- Atezolizumab + bevacizumab (standard treatment)