Molecular Profile Detail

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Profile Name BRAF N486_T491delinsK
Gene Variant Detail

BRAF N486_T491delinsK (gain of function)

Relevant Treatment Approaches MEK inhibitor (Pan) MEK1 Inhibitor MEK2 Inhibitor

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Molecular Profile Indication/Tumor Type Response Type Relevant Treatment Approaches Therapy Name Approval Status Evidence Type Efficacy Evidence References
BRAF N486_T491delinsK Advanced Solid Tumor predicted - sensitive MEK inhibitor (Pan) MEK1 Inhibitor MEK2 Inhibitor Cobimetinib Preclinical - Cell culture Actionable In a preclinical study, Cotellic (cobimetinib) inhibited viability of transformed cells expressing BRAF N486_T491delinsK in culture (PMID: 30867592). 30867592
BRAF N486_T491delinsK lymphatic system cancer predicted - sensitive MEK inhibitor (Pan) MEK1 Inhibitor MEK2 Inhibitor Cobimetinib Case Reports/Case Series Actionable In a Phase II trial, treatment with Cotellic (cobimetinib) in patients with histiocytic neoplasms resulted in a PET overall response rate of 89% (16/18), with complete response in 72% (13/18) and partial response in 17% (3/18), and resulted in stable disease in 6% (1/18) of patients, including a complete response in a patient with Langerhans cell histiocytosis harboring BRAF N486_T491delinsK (PMID: 30867592; NCT01953926). 30867592
Clinical Trial Phase Therapies Title Recruitment Status