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Molecular Profile MAP2K1 Q56P
Therapy Cobimetinib
Indication/Tumor Type Erdheim-Chester disease
Response Type predicted - sensitive

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Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
MAP2K1 Q56P Erdheim-Chester disease predicted - sensitive Cobimetinib Case Reports/Case Series Actionable In a clinical case study, a patient with refractory Erdheim-Chester disease harboring a MAP2K1 Q56P mutation had a reduction of lymphatic infiltrates to background within a month of receiving Cotellic (cobimetinib) therapy (PMID: 26566875). 26566875
MAP2K1 Q56P Erdheim-Chester disease predicted - sensitive 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 stable disease in 6% (1/18) of patients, including a complete response in a patient with Erdheim-Chester disease harboring MAP2K1 Q56P (PMID: 30867592; NCT01953926). 30867592
PubMed Id Reference Title Details
(26566875) Diverse and Targetable Kinase Alterations Drive Histiocytic Neoplasms. Full reference...
(30867592) Efficacy of MEK inhibition in patients with histiocytic neoplasms. Full reference...