Phase I clinical trials of Irpagratinib (ABSK-011) demonstrated an objective response rate of 43.5%, which increased to 55.6% combined with atezolizumab. It also firstly synthesizes combination strategies and underlying mechanisms between FGFR4 inhibitors and targeted-immunotherapy, addressing critical gaps in existing reviews. Additionally, we discuss the potential of FGF19 as a predictive biomarker, integrating mechanistic and clinical evidence to advance precision HCC therapeutics.
Pathway inhibition was observed by increased C4, total bile acids, FGF19, and decreased total cholesterol at all dose levels. Conclusions The promising response rate and manageable safety profile from this phase I study suggest that ABSK-011 may have clinical benefit for HCC pts with prior therapies through biomarker selection of FGF19.