Comparative Analysis of Atezolizumab Plus Bevacizumab and Hepatic Artery Infusion Chemotherapy in Unresectable Hepatocellular Carcinoma: A Multicenter, Propensity Score Study

SIMPLE SUMMARY: We aimed to compare the prognosis of patients with advanced hepatocellular carcinoma treated with the first-line atezolizumab plus bevacizumab (AB) combination chemotherapy and the less popular locoregional treatment mainly used in East Asia, hepatic artery infusion chemotherapy (HAIC). We conducted a retrospective study with 114 patients treated with AB and 193 patients treated with HAIC and compared the overall survival (OS) and progression-free survival (PFS). Our results showed comparable OS between the two therapy groups; however, PFS was superior in patients treated with AB combination therapy. After compensating for confounding variables via propensity score matching, there was no significant difference in PFS and OS between the two groups. ABSTRACT: This study aimed to compare the prognosis and characteristics of patients with advanced hepatocellular carcinoma treated with first-line atezolizumab plus bevacizumab (AB) combination therapy and hepatic artery infusion chemotherapy (HAIC). We retrospectively assessed 193 and 114 patients treated with HAIC and AB combination therapy, respectively, between January 2018 and May 2023. The progression-free survival (PFS) of patients treated with AB combination therapy was significantly superior to that of patients treated with HAIC (p < 0.05), but there was no significant difference in overall survival (OS). After propensity score matching, our data revealed no significant differences in OS and PFS between patients who received AB combination therapy and those who received HAIC therapy (p = 0.5617 and 0.3522, respectively). In conclusion, our propensity score study reveals no significant differences in OS and PFS between patients treated with AB combination therapy and those treated with HAIC.