Molecular Profile Detail

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Profile Name KIT W557_K558del KIT D816H
Gene Variant Detail

KIT D816H (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 D816H Advanced Solid Tumor sensitive Ponatinib Preclinical - Cell line xenograft Actionable In a preclinical study, transformed cells co-expressing KIT W557_K558del and KIT D816H demonstrated sensitivity to treatment with Iclusig (ponatinib) in both culture and cell line xenograft models, resulting in reduced cell viability and tumor regression (PMID: 25239608). 25239608
KIT W557_K558del KIT D816H Advanced Solid Tumor decreased response Sunitinib Preclinical - Cell line xenograft Actionable In a preclinical study, transformed cells co-expressing KIT W557_K558del and KIT D816H demonstrated a decreased response to treatment with Sutent (sunitinib) in both culture and cell line xenograft models, resulting in only a slight decrease in tumor volume (PMID: 25239608). 25239608
KIT W557_K558del KIT D816H Advanced Solid Tumor decreased response Imatinib Preclinical - Cell line xenograft Actionable In a preclinical study, transformed cells co-expressing KIT W557_K558del and KIT D816H demonstrated a decreased response to treatment with Gleevec (imatinib) in both culture and xenograft models, resulting in only a slight decrease in tumor volume (PMID: 25239608). 25239608
KIT W557_K558del KIT D816H Advanced Solid Tumor decreased response Regorafenib Preclinical Actionable In a preclinical study, transformed cells co-expressing KIT W557_K558del and KIT D816H demonstrated a decreased response to treatment with Stivarga (regorafenib) in culture (PMID: 25239608). 25239608
KIT W557_K558del KIT D816H Advanced Solid Tumor sensitive AZD3229 Preclinical - Cell line xenograft Actionable In a preclinical study, AZD3229 inhibited growth of cells in culture and tumor growth in a cell line xenograft model of transformed cells expressing KIT W557_K558del and KIT D816H (PMID: 32350132). 32350132
KIT W557_K558del KIT D816H Advanced Solid Tumor sensitive Avapritinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing KIT W557_K558del and KIT D816H demonstrated sensitivity to Ayvakit (avapritinib) in culture, resulting in reduced cell viability (PMID: 32350132). 32350132
KIT W557_K558del KIT D816H Advanced Solid Tumor sensitive Ripretinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing KIT W557_K558del and KIT D816H demonstrated sensitivity to Qinlock (ripretinib) in culture, resulting in reduced cell viability (PMID: 32350132). 32350132
KIT W557_K558del KIT D816H gastrointestinal stromal tumor predicted - resistant Imatinib Case Reports/Case Series Actionable In a clinical case study, a patient with gastrointestinal stromal tumor harboring KIT W557_K558del progressed after experiencing stable disease on treatment with Gleevec (imatinib), and was found to have acquired the secondary resistance mutation KIT D816H (PMID: 18294292). 18294292