NCIt definition : An orally bioavailable inhibitor of the fibroblast growth factor receptor (FGFR) with
potential antineoplastic activity. fexagratinib binds to and inhibits FGFR, which
may result in the inhibition of FGFR-related signal transduction pathways, and, so,
the inhibition of tumor cell proliferation and tumor cell death. FGFR, up-regulated
in many tumor cell types, is a receptor tyrosine kinase essential to tumor cellular
proliferation, differentiation and survival.;