New treatment options emerge for intermediate, advanced HCC
REPORTING FROM THE 2018 GI CANCERS SYMPOSIUM
Median overall survival was 10.2 months with cabozantinib and 8.0 months with placebo (HR, 0.76; P = .0049). Median progression-free survival was 5.2 months and 1.9 months, respectively (HR, 0.44; P less than .0001). For both outcomes, benefit was similar across most patient subgroups and among patients whose only prior therapy was sorafenib.
The objective response rate was 4% with cabozantinib (all partial responses) and 0.4% with placebo. Median time to subsequent systemic anticancer therapy – most commonly cytotoxic chemotherapy – was 6.6 months with the drug and 3.3 months with placebo.
Median duration of treatment was 3.8 months and 2.0 months, respectively. The rate of discontinuation from treatment-related adverse events was 16% and 3%.
Grade 3 or 4 adverse events occurred in 68% of patients in the cabozantinib group (mainly hand-foot syndrome, hypertension, and gastrointestinal events) and 36% in the placebo group. Six patients in the former group and one in the latter group had grade 5 treatment-related adverse events, most due to worsening of hepatic function.