RP3 is a genetically modified herpes simplex type 1 virus (HSV-1) that expresses exogenous genes (anti-CTLA-4 antibody, CD40 ligand and h4-1BBL) designed to directly kill tumor cells and generate a systemic anti-tumor immune response
This is a Phase 2, open-label, 2-cohort clinical study evaluating RP3 in combination with atezolizumab plus bevacizumab as First- or Second-line Systemic Therapy in patients with locoregionally advanced and/or metastatic Hepatocellular Carcinoma not amenable to surgical resection or standard locoregionally directed therapies.