Hepatocellular Carcinoma Study Comparing Vaccinia Virus Based Immunotherapy Plus Sorafenib vs Sorafenib Alone

This is a multi-center, randomized, open-label, Phase 3 study comparing Pexa Vec followed by sorafenib versus sorafenib in patients with advanced HCC without prior systemic therapy. A total of 459 patients were randomly assigned to 2 treatment arms- 234 patients in the Pexa-Vec followed by sorafenib treatment group and 225 patients in the sorafenib only treatment group.