NCIt definition : An orally available inhibitor of all members of the serine/threonine protein kinase
Raf family, with potential antineoplastic activity. Upon administration, naporafenib
binds to Raf proteins and inhibits Raf-mediated signal transduction pathways. This
inhibits proliferation of Raf-overexpressing tumor cells. Raf protein kinases are
critical enzymes in the Ras/Raf/MEK/ERK signaling pathway and are upregulated in a
variety of cancer cell types. They play key roles in tumor cell proliferation and
survival.;