RecruitingPhase 3Drug trialPhase III Study of Rilvegostomig in Combination With Bevacizumab With or Without Tremelimumab as First-line Treatment of Hepatocellular CarcinomaThis is a Phase III, randomised, open-label, sponsor-blinded, 3-arm, multicentre, global study assessing the efficacy and safety of rilvegostomig in combination with bevacizumab with or without tremelimumab compared to atezolizumab in combination with bevacizumab. This study will be conducted in participants with advanced HCC who are not amenable to curative therapy or locoregional therapy