Vemurafenib

**Semantic type:** Organic Chemical|Pharmacologic Substance

**Definition:** An orally bioavailable, ATP-competitive, small-molecule inhibitor of BRAF(V600E) kinase with potential antineoplastic activity. Vemurafenib selectively binds to the ATP-binding site of BRAF(V600E) kinase and inhibits its activity, which may result in an inhibition of an over-activated MAPK signaling pathway downstream in BRAF(V600E) kinase-expressing tumor cells and a reduction in tumor cell proliferation. Approximately 90% of BRAF gene mutations involve a valine-to-glutamic acid mutation at residue 600 (V600E); the oncogene protein product, BRAF(V600E) kinase, exhibits a markedly elevated activity that over-activates the MAPK signaling pathway. The BRAF(V600E) gene mutation has been found to occur in approximately 60% of melanomas, and in about 8% of all solid tumors, including melanoma, colorectal, thyroid and other cancers.

**Synonyms:** - 1-propanesulfonamide, n-(3-((5-(4-chlorophenyl)-1h-pyrrolo(2,3-b)pyridin-3-yl)carbonyl)-2,4-difluorophenyl)- - BRAF (V600E) kinase inhibitor RO5185426 - BRAF(V600E) Kinase Inhibitor RO5185426 - PLX 4032 - PLX-4032 - PLX4032 - RG 7204 - RG-7204 - RG7204 - RG7204 - RO 5185426 - RO-5185426 - VEMURAFENIB - Zelboraf