Dabrafenib

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Systematic (IUPAC) name
N-{3-[5-(2-aminopyrimidin-4-yl)-2-tert-butyl-1,3-thiazol-4-yl]-2-fluorophenyl}-2,6-difluorobenzenesulfonamide
Clinical data
Trade names	Tafinlar
Pregnancy category	US: D (Evidence of risk)
Legal status	US: ℞-only
Identifiers
CAS Number	1195765-45-7
ATC code	L01XE23 (WHO)
PubChem	CID: 44462760
ChemSpider	25948204
ChEBI	CHEBI:75045
ChEMBL	CHEMBL2028663
Chemical data
Formula	C23H20F3N5O2S2
Molecular mass	519.56 g/mol
SMILES CC(C)(C)c1nc(c(s1)c2ccnc(n2)N)c3cccc(c3F)NS(=O)(=O)c4c(cccc4F)F
InChI InChI=1S/C23H20F3N5O2S2/c1-23(2,3)21-30-18(19(34-21)16-10-11-28-22(27)29-16)12-6-4-9-15(17(12)26)31-35(32,33)20-13(24)7-5-8-14(20)25/h4-11,31H,1-3H3,(H2,27,28,29) Key:BFSMGDJOXZAERB-UHFFFAOYSA-N

Dabrafenib (trade name Tafinlar, GSK2118436) is a drug for the treatment of cancers associated with a mutated version of the gene BRAF. Dabrafenib acts as an inhibitor of the associated enzyme B-Raf, which plays a role in the regulation of cell growth. Dabrafenib has clinical activity with a manageable safety profile in clinical trials of phase 1 and 2 in patients with BRAF(V600)-mutated metastatic melanoma.

The Food and Drug Administration initially approved dabrafenib as a single agent treatment for patients with BRAF V600E mutation-positive advanced melanoma on May 30, 2013. Clinical trial data demonstrated that resistance to dabrafinib and other BRAF inhibitors occurs within 6 to 7 months. To overcome this resistance, the BRAF inhibitor dabrafenib was combined with the MEK inhibitor trametinib. On January 8, 2014, the FDA approved this combination of dabrafenib and trametinib for BRAF V600E/K-mutant metastatic melanoma.