A drug used to treat Erdheim-Chester disease (a very rare type of histiocytosis) and advanced melanoma. It is used in patients whose disease has a mutated (changed) form of a gene called BRAF. It is also being studied in the treatment of other types of cancer. BRAF (V600E) kinase inhibitor RO5185426
blocks certain proteins made by the mutated BRAF gene, which may help keep cancer cells from growing. It is a type of kinase inhibitor and a type of targeted therapy agent. Also called PLX4032, RG7204, vemurafenib, and Zelboraf.