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Molecular Profile Detail

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Profile Name KIT W557_K558del KIT N822K
Gene Variant Detail

KIT N822K (gain of function)

KIT W557_K558del (gain of function)

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
KIT W557_K558del KIT N822K Advanced Solid Tumor sensitive Ponatinib Preclinical Actionable In a preclinical study, transformed cells co-expressing KIT W557_K558del and KIT N822K were sensitive to Iclusig (ponatinib) in an in vitro kinase assay (PMID: 25239608). 25239608
KIT W557_K558del KIT N822K Advanced Solid Tumor resistant Sunitinib Preclinical Actionable In a preclinical study, transformed cells co-expressing KIT W557_K558del and KIT N822K were resistant to Sutent (sunitinb) in an in vitro kinase assay (PMID: 25239608). 25239608
KIT W557_K558del KIT N822K Advanced Solid Tumor resistant Imatinib Preclinical Actionable In a preclinical study, transformed cells co-expressing KIT W557_K558del and KIT N822K were resistant to Gleevec (imatinib) in an in vitro kinase assay (PMID: 25239608). 25239608
KIT W557_K558del KIT N822K Advanced Solid Tumor conflicting Regorafenib Preclinical Actionable In a preclinical study, transformed cells co-expressing KIT W557_K558del and KIT N822K were resistant to Stivarga (regorafenib) in an in vitro kinase assay (PMID: 25239608). 25239608
KIT W557_K558del KIT N822K Advanced Solid Tumor resistant Imatinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing KIT W557_K558del and KIT N822K demonstrated resistance to Gleevec (imatinib) in culture (PMID: 32350132). 32350132
KIT W557_K558del KIT N822K Advanced Solid Tumor sensitive AZD3229 Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing KIT W557_K558del and KIT N822K demonstrated sensitivity to AZD3229 in culture, resulting in reduced cell viability (PMID: 32350132). 32350132
KIT W557_K558del KIT N822K Advanced Solid Tumor sensitive Ripretinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing KIT W557_K558del and KIT N822K demonstrated sensitivity to Qinlock (ripretinib) in culture, resulting in reduced cell viability (PMID: 32350132). 32350132
KIT W557_K558del KIT N822K Advanced Solid Tumor conflicting Regorafenib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing KIT W557_K558del and KIT N822K was sensitive to treatment with Stivarga (regorafenib), demonstrating decreased cell viability in culture (PMID: 32350132). 32350132
KIT W557_K558del KIT N822K Advanced Solid Tumor resistant Sunitinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing KIT W557_K558del and KIT N822K demonstrated resistance to Sutent (sunitinib) in culture (PMID: 32350132). 32350132
KIT W557_K558del KIT N822K Advanced Solid Tumor sensitive Avapritinib Preclinical - Cell culture Actionable In a preclinical study, Ayvakit (avapritinib) treatment resulted in decreased viability of transformed cells expressing KIT W557_K558del and KIT N822K in culture, but was less effective compared to other treatments (PMID: 32350132). 32350132
KIT W557_K558del KIT N822K gastrointestinal stromal tumor predicted - resistant Binimetinib + Imatinib Case Reports/Case Series Actionable In a Phase II trial, KIT N822K was identified as a secondary resistance mutation in a patient with a gastrointestinal stromal tumor harboring a primary KIT W557_K558del mutation who developed resistance to Gleevec (imatinib) and Mektovi (binimetinib) (PMID: 35041493; NCT01991379). 35041493