Mutant Melanoma

Mutant melanoma is characterized by a high mutational burden, primarily driven by ultraviolet radiation and other mutational processes. Genomic analysis of 333 melanoma patients revealed four distinct genomic subtypes: BRAF-mutant, NRAS-mutant, NF1-mutant, and triple-wildtype. While BRAF-mutant melanomas are effectively targeted by BRAF and MEK inhibitors, the other subtypes—NRAS-mutant, NF1-mutant, and triple-wildtype—remain largely undruggable with currently available targeted therapies.