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J Gastrointest Oncol. 2015 Dec;6(6):650-9. doi: 10.3978/j.issn.2078-6891.2015.076.

New therapeutic strategies for BRAF mutant colorectal cancers.

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1 Massachusetts General Hospital Cancer Center, Boston, MA 02129, USA ; 2 Department of Medicine, Harvard Medical School, Boston, MA 02115, USA.


Oncogenic BRAF mutations are found in ~10% of colorectal cancers (CRCs) and predict poor prognosis. Although BRAF inhibitors have demonstrated striking efficacy in BRAF mutant melanomas, BRAF inhibitor monotherapy is ineffective in BRAF mutant CRC. Over the past few years, studies have begun to define the molecular mechanisms underlying the relative resistance of BRAF mutant CRC to BRAF inhibitors, leading to the development of novel therapeutic strategies that are showing promising clinical activity in initial clinical trials. Our current understanding of the mechanisms of BRAF inhibitor resistance in BRAF mutant CRC and the therapeutic approaches currently in clinical trials for BRAF mutant CRC are reviewed herein.


BRAF; BRAF inhibitor; clinical trials; colorectal cancer (CRC)

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