Factors Contributing to the Prognosis after Second-line Therapy with Ramucirumab in Advanced Hepatocellular Carcinoma.

Objective Multiple therapeutic agents exist for advanced hepatocellular carcinoma (HCC), but prognostic factors in second-line and subsequent therapies are unclear. Ramucirumab is a molecular-targeted agent effective against hepatocytes with alpha-fetoprotein (AFP) >400 ng/mL after sorafenib failure. We examined the prognostic factors and efficacy of ramucirumab with prior therapy other than sorafenib. Methods In our retrospective multicenter study, 33 patients were treated with ramucirumab for HCC with prior therapy other than sorafenib, including 1 patient who received 2 lines of ramucirumab. We analyzed background factors, liver reserve, the prognosis, and treatment duration and efficacy. Results The median albumin-bilirubin (ALBI) value showed little change during ramucirumab treatment. The ALBI value improved in 32% of patients, and their prognoses were better than in those who did not improve. Response and efficacy rates were not as high as those in the REACH-2 study but were similar when limited to patients with 2,500 ng/mL AFP. Thirteen patients received further treatment after ramucirumab failure and they had a significantly better prognosis from ramucirumab administration and also had a significantly better prognosis from the start of the first tyrosine kinase inhibitor than who did not received further treatment. In univariate and multivariate analyses of prognostic factors, the continuation of treatment with another drug after ramucirumab failure and a good ALBI value at initiation were significant. The presence of a ramucirumab response and treatment duration were not associated with the prognosis. A good ALBI value at initiation and ALBI value improvement during treatment were also identified as independent factors associated with eligibility for further treatment after ramucirumab failure. The treatment line did not correlate with the availability of treatment with another drug after treatment failure. Conclusions ALBI value improvement with ramucirumab treatment allows for subsequent treatment after failure and an improved overall prognosis.

Atezolizumab plus bevacizumab treatment for unresectable hepatocellular carcinoma progressing after molecular targeted therapy: A multicenter prospective observational study.

To evaluate the efficacy of atezolizumab plus bevacizumab treatment in patients with hepatocellular carcinoma (HCC) previously treated with molecular targeted agents (MTAs). Thirty-one patients treated with atezolizumab plus bevacizumab for unresectable HCC and previously treated with MTAs were enrolled in this study. The treatment lines ranged from second to sixth lines. The treatment effect on HCC differed from that during first-line treatment. The treatment effect was determined using the Response Evaluation Criteria in Solid Tumors (RECIST) and modified RECIST. The treatment response was different for each MTA immediately prior to atezolizumab + bevacizumab treatment. Tumors treated with lenvatinib followed by atezolizumab + bevacizumab showed rapid growth for a short period of time followed by shrinkage. However, patients who received ramucirumab, sorafenib, and regorafenib did not show such changes. This was likely because of differences in the mechanism of action of the MTA administered immediately beforehand. The side-effect profile differed from that observed in the IMbrave150 phase 3 study of atezolizumab plus bevacizumab, which showed more adverse events related to hepatic reserve. Patients treated with the combination of atezolizumab and bevacizumab after lenvatinib therapy may experience rapid tumor growth and subsequent shrinkage.