Molecular Profile Detail

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Profile Name KIT T670I
Gene Variant Detail

KIT T670I (gain of function)

Relevant Treatment Approaches KIT Inhibitor

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Molecular Profile Indication/Tumor Type Response Type Relevant Treatment Approaches Therapy Name Approval Status Evidence Type Efficacy Evidence References
KIT T670I melanoma resistant KIT Inhibitor Imatinib Preclinical Actionable In a preclinical study, melanoma cells expressing KIT T670I demonstrated resistance to treatment with Gleevec (imatinib mesylate) (PMID: 23582185, PMID: 25594040). 23582185 25594040
KIT T670I melanoma resistant KIT Inhibitor Nilotinib Preclinical Actionable In a preclinical study, melanoma cells expressing KIT T670I demonstrated resistance to treatment with Tasigna (nilotinib) (PMID: 23582185, PMID: 25594040). 23582185 25594040
KIT T670I melanoma resistant KIT Inhibitor Dasatinib Preclinical Actionable In a preclinical study, melanoma cells expressing KIT T670I demonstrated resistance to treatment with Sprycel (dasatinib) (PMID: 23582185, PMID: 25594040). 23582185 25594040
KIT T670I melanoma sensitive KIT Inhibitor Sunitinib Preclinical Actionable In a preclinical study, Sutent (sunitinib) demonstrated efficacy by inhibiting proliferation of cultured melanoma cells expressing KIT T670I (PMID: 23582185, PMID: 25594040). 23582185 25594040
KIT T670I gastrointestinal stromal tumor predicted - resistant KIT Inhibitor Imatinib Case Reports/Case Series Actionable In a clinical case report, a patient with a gastrointestinal stromal tumor developed disease progression while being treated with Gleevec (imatinib), demonstrating a KIT T670I mutation in the progressive lesion (PMID: 15236194). 15236194
KIT T670I Advanced Solid Tumor sensitive KIT Inhibitor Ponatinib Preclinical Actionable In a preclinical study, cells expressing KIT T670I demonstrated sensitivity to Iclusig (ponatinib) in an in vitro kinase assay (PMID: 25239608). 25239608
KIT T670I Advanced Solid Tumor sensitive KIT Inhibitor Axitinib Preclinical - Cell culture Actionable In a preclinical study, Inlyta (axitinib) inhibited KIT phosphorylation and proliferation of transformed cells expressing KIT T670I in culture, however, with decreased potency compared to its potency against other KIT variants (PMID: 31205508). 31205508
KIT T670I Advanced Solid Tumor sensitive KIT Inhibitor Sunitinib Preclinical - Cell culture Actionable In a preclinical study, Sutent (sunitinib) inhibited proliferation of transformed cells expressing KIT T670I in culture (PMID: 31205508). 31205508
KIT T670I gastrointestinal stromal tumor predicted - resistant KIT Inhibitor Avapritinib Phase I Actionable In a Phase I trial, patients with gastrointestinal stromal tumors harboring either KIT V654A or KIT T670I demonstrated decreased overall response rate (0%, 0/25 vs. 26%, 22/84) and increased progressive disease rate (72% vs 23%) compared to those without either KIT mutation when treated with Ayvakit (avapritinib) (PMID: 31270078; NCT02508532). 31270078
KIT T670I Advanced Solid Tumor sensitive KIT Inhibitor Regorafenib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing KIT T670I demonstrated sensitivity to Stivarga (regorafenib) treatment in culture, resulting in reduced cell viability (PMID: 33212994). 33212994
KIT T670I Advanced Solid Tumor sensitive KIT Inhibitor Cabozantinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing KIT T670I demonstrated sensitivity to Cometriq (Cabometyx, cabozantinib) treatment in culture, resulting in reduced cell viability (PMID: 33212994). 33212994
KIT T670I Advanced Solid Tumor sensitive KIT Inhibitor Sunitinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing KIT T670I demonstrated sensitivity to Sutent (sunitinib) treatment in culture, resulting in reduced cell viability (PMID: 33212994). 33212994
KIT T670I Advanced Solid Tumor resistant KIT Inhibitor Imatinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing KIT T670I were resistant to treatment with Gleevec (imatinib) in culture (PMID: 33212994). 33212994
KIT T670I Advanced Solid Tumor sensitive Nintedanib Preclinical - Cell line xenograft Actionable In a preclinical study, Ofev (nintedanib) inhibited Kit autophosphorylation and proliferation of transformed cells expressing KIT T670I in culture, and suppressed tumor growth in cell line xenograft models (PMID: 35194937). 35194937
KIT T670I Advanced Solid Tumor sensitive KIT Inhibitor Sunitinib Preclinical - Cell culture Actionable In a preclinical study, Sutent (sunitinib) inhibited proliferation of transformed cells expressing KIT T670I in culture (PMID: 35194937). 35194937
KIT T670I Advanced Solid Tumor resistant KIT Inhibitor Imatinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing KIT T670I demonstrated resistance to Gleevec (imatinib) in culture (PMID: 35194937). 35194937