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Gene | FLT3 |
Variant | exon 15 ins |
Impact List | indel |
Protein Effect | gain of function - predicted |
Gene Variant Descriptions | FLT3 exon 15 ins refers to a series of internal tandem duplications (ITD) typically occurring in exon 14 and sometimes a portion of exon 15, and within the juxtamembrane domain of the Flt3 protein (PMID: 12970773). Exon 15 ins mutations often result in constitutive activation of Flt3 (PMID: 12970773) and therefore, is predicted to lead to a gain of Flt3 protein function. |
Associated Drug Resistance | |
Category Variants Paths |
FLT3 mutant FLT3 act mut FLT3 exon 15 ins FLT3 mutant FLT3 exon15 FLT3 exon 15 ins |
Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
---|---|---|---|---|---|---|---|
FLT3 exon 15 ins | acute myeloid leukemia | sensitive | Gilteritinib | FDA approved - On Companion Diagnostic | Actionable | In a Phase III trial (ADMIRAL) that supported FDA approval, Xospata (gilteritinib) treatment resulted in complete remission (CR) or CR with partial hematologic recovery in 21% (29/138) of patients with relapsed or refractory acute myeloid leukemia harboring a FLT3 internal tandem duplication (ITD; exon 14 insertion, exon 15 insertion), D835, or I836 mutation (FDA.gov; NCT02421939). | detail... detail... |
FLT3 exon 15 ins | acute myeloid leukemia | sensitive | Gilteritinib | Guideline | Actionable | Xospata (gilteritinib) is included in the guidelines for patients with relapsed or refractory acute myeloid leukemia harboring a FLT3 internal tandem duplication (FLT3-ITD) mutation (NCCN.org). | detail... |
FLT3 exon 15 ins | acute myeloid leukemia | sensitive | Gilteritinib | Guideline | Actionable | Xospata (gilteritinib) is included in the guidelines for patients with relapsed or refractory acute myeloid leukemia harboring a FLT3 internal tandem duplication (FLT3-ITD) mutation (PMID: 32171751; ESMO.org). | 32171751 detail... |
FLT3 exon 15 ins | acute myeloid leukemia | sensitive | Cytarabine + Daunorubicin + Midostaurin | FDA approved - On Companion Diagnostic | Actionable | In a Phase III trial that supported FDA approval, treatment with Rydapt (midostaurin), combined with Cytosar-U (cytarabine) and Daunorubicin, improved overall survival (74.7 mo vs 25.6 mo) in patients with FLT3-mutant (D835X and I836X) or FLT3-ITD (exon 14 insertions, exon 15 insertions) acute myeloid leukemia compared to Cytosar-U (cytarabine) and Daunorubicin with placebo (PMID: 28644114). | 28644114 |
FLT3 exon 15 ins | acute myeloid leukemia | sensitive | Cytarabine + Daunorubicin + Midostaurin | Guideline | Actionable | Rydapt (midostaurin), in combination with Cerubidine (daunorubicin) and Cytosar-U (cytarabine), is included in guidelines as first-line treatment fro for patients with acute myeloid leukemia harboring FLT3 ITD mutations (PMID: 32171751; ESMO.org). | 32171751 detail... |
FLT3 exon 15 ins | acute myeloid leukemia | sensitive | Sorafenib | Guideline | Actionable | Nexavar (sorafenib) is included in guidelines as maintenance therapy for patients with acute myeloid leukemia harboring a FLT3 internal tandem duplication (FLT3-ITD) mutation (NCCN.org). | detail... |
FLT3 exon 15 ins | acute myeloid leukemia | sensitive | Decitabine + Sorafenib | Guideline | Actionable | Nexavar (sorafenib) in combination with Dacogen (decitabine) is included in guidelines for patients with relapsed or refractory acute myeloid leukemia harboring a FLT3 internal tandem duplication (FLT3-ITD) mutation (NCCN.org). | detail... |
FLT3 exon 15 ins | acute myeloid leukemia | sensitive | Azacitidine + Sorafenib | Guideline | Actionable | Nexavar (sorafenib) in combination with Vidaza (azacitidine) is included in guidelines for patients with relapsed or refractory acute myeloid leukemia harboring a FLT3 internal tandem duplication (FLT3-ITD) mutation (NCCN.org). | detail... |
FLT3 exon 15 ins | acute myeloid leukemia | not applicable | N/A | Guideline | Prognostic | FLT3 internal tandem duplication (FLT3-ITD) mutations are associated with inferior prognosis in acute myeloid leukemia patients with normal karyotype (NCCN.org). | detail... |
FLT3 exon 15 ins | myelodysplastic syndrome | not applicable | N/A | Guideline | Prognostic | FLT3 internal tandem duplication (FLT3-ITD) mutations are associated with poor prognosis in patients with myelodysplastic syndrome (NCCN.org). | detail... |