Molecular Profile Detail

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Profile Name BRAF V600E MAP2K1 K57T
Gene Variant Detail

BRAF V600E (gain of function)

MAP2K1 K57T (gain of function - predicted)

Relevant Treatment Approaches

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Molecular Profile Indication/Tumor Type Response Type Relevant Treatment Approaches Therapy Name Approval Status Evidence Type Efficacy Evidence References
BRAF V600E MAP2K1 K57T refractory hairy cell leukemia predicted - sensitive Cobimetinib + Vemurafenib Case Reports/Case Series Actionable In a clinical case study, a single patient with hairy cell leukemia who relapsed after initial response to Zelboraf (vemurafenib) was found to have acquired multiple clones with Mek/Erk activating mutations, of which the MAP2K1 K57T clone became dominant, and demonstrated a sustained response greater than 12 months to combined Zelboraf (vemurafenib) and Cotellic (cobimetinib) treatment (PMID: 30341394). 30341394
BRAF V600E MAP2K1 K57T hairy cell leukemia predicted - resistant Vemurafenib Case Reports/Case Series Actionable In a clinical case study, a single patient with hairy cell leukemia harboring BRAF V600E, who relapsed after a 38 week remission in response to Zelboraf (vemurafenib) treatment, was found to have acquired multiple clones with Mek/Erk activating mutations, of which the MAP2K1 K57T clone became dominant (PMID: 30341394). 30341394
Clinical Trial Phase Therapies Title Recruitment Status