Dabrafenib was recently approved by the US Food and Drug Administration for treatment of unresectable or metastatic melanoma with BRAF V600E mutations as detected by an FDA-approved test. The THxID BRAF assay, for detection of BRAF V600E mutations was concurrently approved. Dabrafenib is not indicated for the treatment of patients with wild-type BRAF melanoma, because of the potential risk of tumor promotion. About 50% of melanomas have an activating mutation in the BRAF gene, with about 80%-90% of those having a V600E mutation, and 10%-20% having a V600K mutation.
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