Gene Variant Detail

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Gene KIT
Variant D816V
Impact List missense
Protein Effect gain of function
Gene Variant Descriptions KIT D816V lies within the tyrosine kinase domain 2 of the Kit protein (PMID: 19865100). D816V results in constitutive phosphorylation of Kit, activation of Stat5 signaling (PMID: 19865100, PMID: 18390729), induces mastocytosis and tumor formation in mice (PMID: 21148330) and confers resistance to Kit inhibitors (PMID: 22301675, PMID: 19164557).
Associated Drug Resistance Y

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Transcript NM_000222.2
gDNA chr4:g.54733155A>T
cDNA c.2447A>T
Protein p.D816V
Source Database RefSeq
Genome Build GRCh38/hg38
Transcript gDNA cDNA Protein Source Database Genome Build
NM_001093772 chr4:g.54733167A>T c.2447A>T p.D816V RefSeq GRCh38/hg38
XM_005265741 chr4:g.54733155A>T c.2447A>T p.D816V RefSeq GRCh38/hg38
NM_000222 chr4:g.54733155A>T c.2447A>T p.D816V RefSeq GRCh38/hg38
XM_017008179 chr4:g.54733167A>T c.2447A>T p.D816V RefSeq GRCh38/hg38
XM_005265741.1 chr4:g.54733155A>T c.2447A>T p.D816V RefSeq GRCh38/hg38
NM_000222.2 chr4:g.54733155A>T c.2447A>T p.D816V RefSeq GRCh38/hg38
NM_001093772.1 chr4:g.54733167A>T c.2447A>T p.D816V RefSeq GRCh38/hg38
XM_017008179.1 chr4:g.54733167A>T c.2447A>T p.D816V RefSeq GRCh38/hg38

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Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
KIT D816V hematologic cancer sensitive Crenolanib Preclinical - Cell culture Actionable In a preclinical study, Crenolanib inhibited Kit phosphorylation and growth of transformed hematologic cells expressing KIT D816V in culture (PMID: 31309543). 31309543
KIT D816V Advanced Solid Tumor sensitive Midostaurin Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing KIT D816V were sensitive to treatment with Rydapt (midostaurin) in culture, demonstrating decreased cell proliferation (PMID: 31270078). 31270078
KIT D816V Advanced Solid Tumor resistant Quizartinib Preclinical Actionable In a preclinical study, transformed cells expressing KIT D816V demonstrated resistance to Quizartinib in culture (PMID: 23497317). 23497317
KIT D816V acute myeloid leukemia predicted - sensitive Gilteritinib Preclinical - Cell culture Actionable In a preclinical study, Xospata (gilteritinib) demonstrated moderate inhibition of Kit phosphorylation and growth of erythroleukemia cells expressing KIT D816V in culture (PMID: 31309543). 31309543
KIT D816V mast cell neoplasm predicted - sensitive Avapritinib Phase I Actionable In a Phase I trial, patients with either aggressive systemic mastocytosis, mast cell leukemia, or systemic mastocytosis with an associated hematologic neoplasm harboring KIT D816V demonstrated a reduction in mast cell burden and a decrease in KIT D816V allelic fraction when treated with Ayvakit (avapritinib) (ASH Annual Meeting, Dec 2017, Plenary 2). detail...
KIT D816V Advanced Solid Tumor resistant Flumatinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing KIT D816V were resistant to treatment with Flumatinib in culture (PMID: 24205792). 24205792
KIT D816V hematologic cancer predicted - sensitive Gilteritinib Preclinical - Cell culture Actionable In a preclinical study, Xospata (gilteritinib) demonstrated moderate inhibition of Kit phosphorylation and growth of transformed hematologic cells expressing KIT D816V in culture (PMID: 31309543). 31309543
KIT D816V Advanced Solid Tumor sensitive Ripretinib Preclinical - Cell culture Actionable In a preclinical study, Qinlock (ripretinib) inhibited proliferation of transformed cells expressing KIT D816V in culture (PMID: 31085175). 31085175
KIT D816V acute myeloid leukemia resistant Quizartinib Preclinical - Cell culture Actionable In a preclinical study, Quizartinib (AC220) did not inhibit Kit phosphorylation or growth of erythroleukemia cells expressing KIT D816V in culture (PMID: 31309543). 31309543
KIT D816V systemic mastocytosis resistant Imatinib FDA contraindicated Actionable Gleevec (imatinib) is not indicated for patients with aggressive systemic mastocytosis harboring KIT D816V (FDA.gov). detail...
KIT D816V hematologic cancer sensitive Avapritinib Preclinical - Cell culture Actionable In a preclinical study, Ayvakit (avapritinib) inhibited Kit phosphorylation and growth of transformed hematologic cells expressing KIT D816V in culture (PMID: 31309543). 31309543
KIT D816V Advanced Solid Tumor sensitive PLX9486 Preclinical - Cell culture Actionable In a preclinical study, PLX9486 treatment inhibited proliferation of Gleevec (imatinib)-resistant transformed cells expressing KIT D816V in culture (PMID: 30523507). 30523507
KIT D816V acute myeloid leukemia sensitive Crenolanib Preclinical - Cell culture Actionable In a preclinical study, Crenolanib inhibited Kit phosphorylation and growth of erythroleukemia cells expressing KIT D816V in culture (PMID: 31309543). 31309543
KIT D816V hematologic cancer sensitive FF-10101 Preclinical - Cell culture Actionable In a preclinical study, FF-10101, as compared to Quizartinib, inhibited cell proliferation of transformed 32Dcl3 murine myeloid cells expressing human Kit D816V (PMID: 29187377). 29187377
KIT D816V Advanced Solid Tumor predicted - sensitive BPR1J373 Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing KIT D816V were sensitive to BPR1J373, demonstrating inhibition of Kit phosphorylation (PMID: 27512117). 27512117
KIT D816V Advanced Solid Tumor resistant Regorafenib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing KIT D816V were resistant to Stivarga (regorafenib) in culture (PMID: 31085175). 31085175
KIT D816V Advanced Solid Tumor resistant Ponatinib Preclinical Actionable In a preclinical study, Iclusig (ponatinib) did not inhibit growth of transformed cells expressing KIT D816V in culture (PMID: 22301675). 22301675
KIT D816V Advanced Solid Tumor resistant Cabozantinib Preclinical Actionable In a preclinical study, transformed cells expressing KIT D816V demonstrated resistance to Cometriq (cabozantinib) in culture (PMID: 24205792). 24205792
KIT D816V hematologic cancer resistant Imatinib Preclinical Actionable In a preclinical study, a mouse myeloid cell line expressing KIT D816V demonstrated resistance to Gleevec (imatinib) in culture (PMID: 12481435). 12481435
KIT D816V acute myeloid leukemia sensitive Avapritinib Preclinical - Cell culture Actionable In a preclinical study, Ayvakit (avapritinib) inhibited Kit phosphorylation and growth of erythroleukemia cells expressing KIT D816V in culture (PMID: 31309543). 31309543
KIT D816V acute myeloid leukemia sensitive Cytarabine + Dasatinib Case Reports/Case Series Actionable In a clinical case study, a patient with acute myeloid leukemia harboring KIT D816V achieved long-term remission and loss of KIT D816V following treatment with the combination of Sprycel (dasatinib) and Cytosar-U (cytarabine) (PMID: 18986703). 18986703
KIT D816V acute myeloid leukemia sensitive Midostaurin Preclinical - Cell culture Actionable In a preclinical study, Rydapt (midostaurin) inhibited Kit phosphorylation and growth of erythroleukemia cells expressing KIT D816V in culture (PMID: 31309543). 31309543
KIT D816V Advanced Solid Tumor sensitive Avapritinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing KIT D816V were sensitive to treatment with Ayvakit (avapritinib) in culture, demonstrating decreased cell proliferation (PMID: 31270078). 31270078
KIT D816V Advanced Solid Tumor decreased response Nilotinib Preclinical Actionable In a preclinical study, Tasigna (nilotinib) decreased viability of cells expressing KIT D816V in culture, but did not inhibit KIT phosphorylation or growth of KIT D816V-expressing tumors in mouse models (PMID: 20442311). 20442311
KIT D816V hematologic cancer resistant Sorafenib Preclinical - Cell culture Actionable In a preclinical study, transformed hematopoietic cells expressing KIT D816V demonstrated resistance to Nexavar (sorafenib) in culture (PMID: 17229632). 17229632
KIT D816V hematologic cancer resistant Sorafenib Preclinical - Cell culture Actionable In a preclinical study, Nexavar (sorafenib) did not inhibit Kit phosphorylation or growth of transformed hematologic cells expressing KIT D816V in culture (PMID: 31309543). 31309543
KIT D816V systemic mastocytosis not applicable N/A Guideline Diagnostic KIT D816V aids in the diagnosis of systemic mastocytosis (NCCN.org). detail...
KIT D816V systemic mastocytosis not applicable N/A Guideline Prognostic KIT D816V is associated with an adverse prognosis in patients with systemic mastocytosis (NCCN.org). detail...
KIT D816V Advanced Solid Tumor resistant Imatinib Preclinical Actionable In a preclinical study, transformed cells expressing KIT D816V demonstrated resistance to Gleevec (imatinib mesylate) in culture (PMID: 15790786). 15790786
KIT D816V Advanced Solid Tumor resistant Imatinib Preclinical - Cell culture Actionable In a preclinical study, Gleevec (imatinib) treatment did not inhibit proliferation of transformed cells expressing KIT D816V in culture (PMID: 30523507). 30523507
KIT D816V Advanced Solid Tumor resistant Sunitinib Preclinical Actionable In a preclinical study, KIT D816V mutations demonstrated resistance to Sutent (sunitinib) in a biochemical assay (PMID: 19164557). 19164557
KIT D816V Advanced Solid Tumor resistant Sunitinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing KIT D816V were resistant to treatment with Sutent (sunitinib) in culture (PMID: 24205792). 24205792
KIT D816V hematologic cancer resistant Quizartinib Preclinical - Cell culture Actionable In a preclinical study, Quizartinib (AC220) did not inhibit Kit phosphorylation or growth of transformed hematologic cells expressing KIT D816V in culture (PMID: 31309543). 31309543
KIT D816V acute myeloid leukemia resistant Sorafenib Preclinical - Cell culture Actionable In a preclinical study, Nexavar (sorafenib) did not inhibit Kit phosphorylation or growth of erythroleukemia cells expressing KIT D816V in culture (PMID: 31309543). 31309543
KIT D816V hematologic cancer sensitive Midostaurin Preclinical - Cell culture Actionable In a preclinical study, Rydapt (midostaurin) inhibited Kit phosphorylation and growth of transformed hematologic cells expressing KIT D816V in culture (PMID: 31309543). 31309543
KIT D816V hematologic cancer sensitive Dasatinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing KIT D816V were sensitive to treatment with Sprycel (dasatinib) in culture, demonstrating reduced cell survival (PMID: 31182436). 31182436
KIT D816V systemic mastocytosis sensitive Avapritinib Phase II Actionable In a Phase II trial (PATHFINDER), Ayvakit (avapritinib) treatment resulted in an objective response rate of 75% (24/32) in evaluable patients (pts) with advanced systemic mastocytosis, at 10.4 mo median follow-up, 84% (52/62) of pts remained on study, with median overall survival (OS) not reached, median time to response of 2 mo, an estimated 12 mo OS of 87%, and KIT D816V allele reduction in 53% of pts (33/62) (AACR Annual Meeting, Apr 2021, Abstract CT023; NCT03580655). detail...
KIT V560G KIT D816V mast cell neoplasm resistant Sunitinib Preclinical - Cell culture Actionable In a preclinical study, mast cells harboring both KIT D816V and KIT V560G were resistant to Sutent (sunitinib) in culture (PMID: 31085175). 31085175
KIT V560G KIT D816V mast cell neoplasm resistant Imatinib Preclinical - Cell culture Actionable In a preclinical study, mast cells harboring both KIT D816V and KIT V560G were resistant to Gleevec (imatinib) in culture (PMID: 31085175). 31085175
KIT V560G KIT D816V Advanced Solid Tumor sensitive PLX9486 Preclinical - Cell culture Actionable In a preclinical study, PLX9486 treatment inhibited proliferation of Gleevec (imatinib)-resistant transformed cells expressing KIT V560G and D816V in culture (PMID: 30523507). 30523507
KIT V560G KIT D816V mast cell neoplasm sensitive Avapritinib Preclinical - Cell culture Actionable In a preclinical study, Ayvakit (avapritinib) inhibited proliferation of mast cells harboring KIT D816V and KIT V560G in culture (PMID: 31085175). 31085175
KIT V560G KIT D816V Advanced Solid Tumor resistant Imatinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells expressing KIT V560G and D816V demonstrated resistance to Gleevec (imatinib) treatment in culture (PMID: 30523507). 30523507
KIT V560G KIT D816V mast cell neoplasm sensitive Midostaurin Preclinical - Cell culture Actionable In a preclinical study, Rydapt (midostaurin) inhibited proliferation of mast cells harboring KIT D816V and KIT V560G in culture (PMID: 31085175). 31085175
KIT V560G KIT D816V mast-cell leukemia sensitive Ponatinib Preclinical Actionable In a preclinical study, Iclusig (ponatinib) inhibited growth of a human mast cell line harboring both KIT V560G and KIT D816V in culture (PMID: 24552773). 24552773
KIT V560G KIT D816V mast cell neoplasm resistant Quizartinib Preclinical Actionable In a preclinical study, KIT D816V conferred resistance to Quizartinib in a mast cell line harboring both KIT V560G and KIT D816V in culture (PMID: 23497317). 23497317
KIT V560G KIT D816V mast cell neoplasm resistant Regorafenib Preclinical - Cell culture Actionable In a preclinical study, mast cells harboring both KIT D816V and KIT V560G were resistant to Stivarga (regorafenib) in culture (PMID: 31085175). 31085175
KIT V560G KIT D816V mast-cell leukemia sensitive Avapritinib Preclinical - Cell culture Actionable In a preclinical study, Ayvakit (avapritinib) inhibited Kit phosphorylation and proliferation of a mast cell leukemia cell line harboring KIT D816V and V560G in culture (PMID: 29093181). 29093181
KIT V560G KIT D816V mast-cell leukemia sensitive Dasatinib Preclinical Actionable In a preclinical study, Sprycel (dasatinib) inhibited growth and induced apoptosis in a mast-cell leukemia cell line harboring both KIT V560G and KIT D816V in culture (PMID: 18024392). 18024392
KIT V560G KIT D816V mast cell neoplasm sensitive Ripretinib Preclinical - Cell culture Actionable In a preclinical study, Qinlock (ripretinib) inhibited proliferation of mast cells harboring KIT D816V and KIT V560G in culture, and inhibited tumor growth in cell line xenograft models (PMID: 31085175). 31085175
KIT V560G KIT D816V mast-cell leukemia sensitive BPR1J373 Preclinical - Cell culture Actionable In a preclinical study, a mast-cell leukemia cell line simultaneously harboring KIT D816V and KIT V560G was sensitive to BPR1J373 in culture, demonstrating inhibition of Kit phosphorylation and apoptotic activity (PMID: 27512117). 27512117
KIT D816V NRAS Q61R melanoma no benefit Pembrolizumab + Trametinib Case Reports/Case Series Actionable In a clinical case study, a melanoma patient harboring KIT D816V and NRAS Q61R demonstrated progressive disease when treated with a combination of Mekinist (trametinib) and Keytruda (pembrolizumab) (PMID: 28514312). 28514312
KIT T670I KIT D816V Advanced Solid Tumor resistant Avapritinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells co-expressing KIT D816V and KIT T670I demonstrated resistance to treatment with Ayvakit (avapritinib) in culture (PMID: 31270078). 31270078
KIT T670I KIT D816V Advanced Solid Tumor decreased response Midostaurin Preclinical - Cell culture Actionable In a preclinical study, transformed cells co-expressing KIT D816V and KIT T670I demonstrated a decreased response compared to cells expressing KIT D816V alone when treated with Rydapt (midostaurin) in culture (PMID: 31270078). 31270078
KIT N655K KIT D816V Advanced Solid Tumor predicted - sensitive Avapritinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells co-expressing KIT D816V and KIT N655K demonstrated some sensitivity to treatment with Ayvakit (avapritinib) in culture (PMID: 31270078). 31270078
KIT N655K KIT D816V Advanced Solid Tumor resistant Midostaurin Preclinical - Cell culture Actionable In a preclinical study, transformed cells co-expressing KIT D816V and KIT N655K demonstrated resistance to treatment with Rydapt (midostaurin) in culture compared to cells expressing KIT D816V alone (PMID: 31270078). 31270078
KIT Y672C KIT D816V Advanced Solid Tumor decreased response Midostaurin Preclinical - Cell culture Actionable In a preclinical study, transformed cells co-expressing KIT D816V and KIT Y672C demonstrated a decreased response compared to cells expressing KIT D816V alone when treated with Rydapt (midostaurin) in culture (PMID: 31270078). 31270078
KIT Y672C KIT D816V Advanced Solid Tumor predicted - sensitive Avapritinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells co-expressing KIT D816V and KIT Y672C demonstrated some sensitivity to treatment with Ayvakit (avapritinib) in culture (PMID: 31270078). 31270078
KIT D677N KIT D816V Advanced Solid Tumor resistant Midostaurin Preclinical - Cell culture Actionable In a preclinical study, transformed cells co-expressing KIT D816V and KIT D677N demonstrated resistance to treatment with Rydapt (midostaurin) in culture compared to cells expressing KIT D816V alone (PMID: 31270078). 31270078
KIT D677N KIT D816V Advanced Solid Tumor predicted - sensitive Avapritinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells co-expressing KIT D816V and KIT D677N demonstrated some sensitivity to treatment with Ayvakit (avapritinib) in culture (PMID: 31270078). 31270078
KIT V654A KIT D816V Advanced Solid Tumor predicted - sensitive Avapritinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells co-expressing KIT D816V and KIT V654A demonstrated some sensitivity to treatment with Ayvakit (avapritinib) in culture (PMID: 31270078). 31270078
KIT V654A KIT D816V Advanced Solid Tumor resistant Midostaurin Preclinical - Cell culture Actionable In a preclinical study, transformed cells co-expressing KIT D816V and KIT V654A demonstrated resistance to treatment with Rydapt (midostaurin) in culture compared to cells expressing KIT D816V alone (PMID: 31270078). 31270078
KIT T670V KIT D816V Advanced Solid Tumor sensitive Midostaurin Preclinical - Cell culture Actionable In a preclinical study, transformed cells co-expressing KIT D816V and KIT T670V were sensitive to treatment with Rydapt (midostaurin) in culture, demonstrating decreased cell proliferation (PMID: 31270078). 31270078
KIT T670V KIT D816V Advanced Solid Tumor predicted - resistant Avapritinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells co-expressing KIT D816V and KIT T670V demonstrated some resistance to treatment with Ayvakit (avapritinib) in culture (PMID: 31270078). 31270078
KIT T670A KIT D816V Advanced Solid Tumor sensitive Avapritinib Preclinical - Cell culture Actionable In a preclinical study, transformed cells co-expressing KIT D816V and KIT T670A demonstrated sensitivity to treatment with Ayvakit (avapritinib) in culture (PMID: 31270078). 31270078
KIT T670A KIT D816V Advanced Solid Tumor sensitive Midostaurin Preclinical - Cell culture Actionable In a preclinical study, transformed cells co-expressing KIT D816V and KIT T670A were sensitive to treatment with Rydapt (midostaurin) in culture, demonstrating decreased cell proliferation (PMID: 31270078). 31270078
Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
KIT act mut skin melanoma sensitive Imatinib Guideline Actionable Gleevec (imatinib) is included in guidelines as second-line therapy for metastatic or unresectable cutaneous melanoma patients with KIT activating mutations (NCCN.org). detail...
KIT act mut gastrointestinal stromal tumor sensitive Cabozantinib Preclinical Actionable In a preclinical study, Cometriq (cabozantinib) decreased cell viability in imatinib-sensitive and resistant gastrointestinal stromal tumor (GIST) cell lines harboring KIT activating mutations in culture, and induced tumor regression in KIT-mutant GIST mouse models (PMID: 25836719). 25836719
KIT act mut gastrointestinal stromal tumor sensitive Pexidartinib Preclinical - Cell line xenograft Actionable In a preclinical study, PLX3397 inhibited growth of gastrointestinal stromal tumor cell lines harboring KIT activating mutations in culture and in cell line xenograft models (PMID: 24583793). 24583793
KIT act mut gastrointestinal stromal tumor not applicable N/A Guideline Diagnostic KIT activating mutations aid the diagnosis of gastrointestinal stromal tumor (NCCN.org). detail...
KIT act mut Advanced Solid Tumor sensitive PLX9486 Preclinical Actionable In a preclinical study, PLX9486 inhibited KIT mutations, including exon 17 mutations, and demonstrated in vivo and in vitro activity against tumors harboring KIT exon 17 mutations (Cancer Res February 1, 2016 76; IA32). detail...
KIT mutant melanoma sensitive Nilotinib Phase II Actionable In a Phase II trial, Tasigna (nilotinib) treatment resulted in complete response in 4% (1/25), durable partial response in 16% (4/25), and stable disease in 56% (14/25) of melanoma patients harboring KIT mutations (PMID: 28843487; NCT01168050). 28843487
KIT mutant melanoma sensitive Nilotinib Phase II Actionable In a Phase II trial, Tasigna (nilotinib) treatment in patients with melanoma harboring KIT mutations resulted in an overall response rate of 26.2% (11/42), which included 11 patients with a partial response, a median duration of response of 7.1 months, and an overall survival of 18 months (PMID: 28327988; NCT01028222). 28327988
KIT mutant gastrointestinal stromal tumor sensitive Imatinib + Infigratinib Preclinical - Pdx Actionable In a preclinical study, Truseltiq (infigratinib) and Gleevec (imatinib) combination treatment demonstrated enhanced antitumor activity in patient derived xenograft models of gastrointestinal stromal tumor harboring KIT mutations (PMID: 25673643). 25673643
KIT mutant gastrointestinal stromal tumor not applicable N/A Clinical Study Diagnostic KIT mutations are used in the diagnosis of gastrointestinal stromal tumors (PMID: 25193432, PMID: 26276366, PMID: 25729899). 25193432 26276366 25729899
KIT mutant gastrointestinal stromal tumor predicted - sensitive Avapritinib Phase I Actionable In a Phase I (NAVIGATOR) trial, Ayvakit (avapritinib) treatment resulted in an objective response rate of 13% (7/52, 7 partial responses) and a disease control rate of 63% (33/52) in patients with KIT-mutant gastrointestinal stromal tumor (The CTOS 2018 Annual Meeting, Nov 14-17, Rome Italy, Paper 012 3027631; NCT02508532). detail...
KIT mutant gastrointestinal stromal tumor predicted - sensitive Ripretinib Phase I Actionable In a Phase I trial, Qinlock (ripretinib) was well tolerated, resulted in an objective response in 11.3% (16/142, 16 partial responses) and stable disease in 61.3% (87/142) of patients with advanced gastrointestinal stromal tumor harboring KIT (exon 11, n=103; exon 9, n=26; other, n=6) or PDGFRA mutations (n=7), with a median progression-free survival of 5.6 months (PMID: 32804590; NCT02571036). 32804590
KIT mutant gastrointestinal stromal tumor predicted - sensitive Ripretinib Phase I Actionable In a Phase I trial, Qinlock (ripretinib) demonstrated preliminary safety and efficacy in patients with advanced solid tumors, including KIT-mutant gastrointestinal stromal tumor (GIST), with 1 patient harboring KIT exon 11 and 17 mutations demonstrating a partial response, and 7/7 KIT-mutant GIST patients demonstrating a partial metabolic response (EORTC-NCI-AACR 2016, Abs 7LBA). detail...
KIT mutant melanoma predicted - sensitive Ripretinib Phase I Actionable In a Phase I trial, Qinlock (ripretinib) treatment demonstrated manageable safety and preliminary efficacy in patients with KIT-mutated melanoma, and led to an objective response rate of 23% (6/26, 1 complete and 5 partial responses), a median progression-free survival of 7.3 months, and a median duration of response of 7.4 months (Annals of Oncology 32 (2021): S896-S897; NCT02571036). detail...
KIT D816X systemic mastocytosis not applicable N/A Guideline Diagnostic Activating mutations at codon 816 of KIT aid in the diagnosis of systemic mastocytosis (NCCN.org). detail...
KIT exon17 gastrointestinal stromal tumor predicted - sensitive PLX9486 Phase I Actionable In a Phase I trial, PLX9486 demonstrated safety and preliminary efficacy, resulted in a progression-free survival of more than 24 weeks and partial response in 8.3% (2/24) of patients with advanced solid tumors, 20 of these patients had gastrointestinal stromal tumor that progressed on Gleevec (imatinib mesylate), and most harbored KIT exon 11 and exon 17 mutations (Journal of Clinical Oncology 36, no. 15_suppl (May 20 2018) 11509-11509; NCT02401815). detail...
KIT exon17 Advanced Solid Tumor sensitive Avapritinib Preclinical Actionable In a preclinical study, Ayvakit (avapritinib) inhibited Kit phosphorylation and proliferation of various tumor cell lines harboring KIT exon 17 mutations in culture, and induced tumor regression in an allograft animal model (PMID: 29093181). 29093181
KIT exon17 gastrointestinal stromal tumor sensitive Avapritinib Phase I Actionable In a Phase I trial, Ayvakit (avapritinib) demonstrated preliminary antitumor activity in gastrointestinal stromal tumor patients harboring KIT mutations, with reduced tumor burden in 38% (5/13) of patients, including 1 partial response and 4 stable diseases, and 3 of the 5 responding patients harbored KIT exon 17 mutations (EORTC-NCI-AACR 2016, Abs 6LBA). detail...
KIT exon17 gastrointestinal stromal tumor predicted - sensitive Pexidartinib + PLX9486 Phase I Actionable In a Phase I trial, PLX9486 and Pexidartinib (PLX3397) combination therapy demonstrated safety and preliminary efficacy, resulted in a partial response rate of 8.3% (1/12) and progression-free survival not yet reached in patients with advanced solid tumors, 11 of these patients had gastrointestinal stromal tumor that progressed on Gleevec (imatinib mesylate), and most harbored KIT exon 11 and exon 17 mutations (Journal of Clinical Oncology 36, no. 15_suppl (May 20 2018) 11509-11509; NCT02401815). detail...