Outcomes and safety of atezolizumab plus bevacizumab in the treatment of hepatocellular carcinoma: treatment prognosis and comparison with tyrosine kinase inhibitors in a French multicenter matched real-life study

Eur J Gastroenterol Hepatol. 2024 Nov 1;36(11):1329-1339. doi: 10.1097/MEG.0000000000002830. Epub 2024 Jul 26.

Abstract

Background and aims: The combination of atezolizumab plus bevacizumab (Atz/Bev) has radically changed the treatment strategy for advanced hepatocellular carcinoma (HCC) but raises questions. Our objectives were to determine survival outcomes and safety in a real-life multicenter French cohort, to investigate the on-treatment prognostic value of the bioinflammatory RECA score, and to perform a matched comparison with patients who previously received tyrosine kinase inhibitors (TKIs).

Methodology: A retrospective analysis of 109 consecutive patients enrolled from September 2020 to January 2023 and a post matched comparison with a TKI cohort ( n = 79) by the propensity score matching method.

Results: The Atz/Bev population was mainly nonviral disease patients (69%) with Child-Pugh grade A (90%), performance status 0/1 (90%), and Barcelona Clinic Liver Cancer stage B (38%) or stage C (62%) classification. After a median follow-up of 6.5 months (3.6-11.7), overall survival (OS) was 13.0 (5.1-28.7) months. OS was independently associated with metastasis, increased alkaline phosphatase, and serum bilirubin levels. Treatment-related adverse events were reported in 78% of patients, mostly grade 1 or 2. The RECA score clearly revealed two different prognosis groups after three cycles. No difference in OS was observed after matching between sequential treatment with TKIs and Atz/Bev.

Conclusion: This real-life study highlights the importance of liver function when using Atz/Bev combination and the necessity of identifying predictive markers of response to HCC therapies. Our findings suggest a change in practices, with a marked proportion of intermediate stages, and support the on-treatment prognostic value of an inflammatory score.

Publication types

  • Multicenter Study
  • Comparative Study

MeSH terms

  • Aged
  • Antibodies, Monoclonal, Humanized* / administration & dosage
  • Antibodies, Monoclonal, Humanized* / adverse effects
  • Antibodies, Monoclonal, Humanized* / therapeutic use
  • Antineoplastic Combined Chemotherapy Protocols* / adverse effects
  • Antineoplastic Combined Chemotherapy Protocols* / therapeutic use
  • Bevacizumab* / administration & dosage
  • Bevacizumab* / adverse effects
  • Bevacizumab* / therapeutic use
  • Carcinoma, Hepatocellular* / drug therapy
  • Carcinoma, Hepatocellular* / mortality
  • Carcinoma, Hepatocellular* / pathology
  • Female
  • France
  • Humans
  • Liver Neoplasms* / drug therapy
  • Male
  • Middle Aged
  • Neoplasm Staging
  • Prognosis
  • Propensity Score
  • Protein Kinase Inhibitors* / administration & dosage
  • Protein Kinase Inhibitors* / adverse effects
  • Protein Kinase Inhibitors* / therapeutic use
  • Retrospective Studies
  • Treatment Outcome
  • Tyrosine Kinase Inhibitors

Substances

  • Bevacizumab
  • atezolizumab
  • Antibodies, Monoclonal, Humanized
  • Protein Kinase Inhibitors
  • Tyrosine Kinase Inhibitors