FLT3 I836X
Gene Variant Detail

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Gene FLT3
Variant I836X
Impact List missense
Protein Effect unknown
Gene Variant Descriptions FLT3 I836X indicates any Flt3 missense mutation that results in the replacement of the isoleucine (I) at amino acid 836 by a different amino acid.
Associated Drug Resistance
Category Variants Paths

FLT3 mutant FLT3 exon20 FLT3 I836X

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Transcript NM_004119.3
gDNA chr13:g.28018500_28018502
cDNA c.2506_2508
Protein p.I836
Source Database RefSeq
Genome Build GRCh38/hg38
Transcript gDNA cDNA Protein Source Database Genome Build
NM_004119.2 chr13:g.28018500_28018502 c.2506_2508 p.I836 RefSeq GRCh38/hg38
NM_004119 chr13:g.28018500_28018502 c.2506_2508 p.I836 RefSeq GRCh38/hg38
NM_004119.3 chr13:g.28018500_28018502 c.2506_2508 p.I836 RefSeq GRCh38/hg38

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Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
FLT3 I836X 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) acute myeloid leukemia compared to Cytosar-U (cytarabine) and Daunorubicin with placebo (PMID: 28644114). detail... detail... 28644114
FLT3 I836X acute myeloid leukemia sensitive Gilteritinib FDA approved - On Companion Diagnostic Actionable In a Phase III trial (ADMIRAL) that supported FDA approval, Xospata (gilteritinib) improved median overall survival (9.3 vs 5.6 mo, HR. 0.64, p<0.001) compared to chemotherapy, resulted in superior median event-free survival (2.8 vs 0.7 mo, HR 0.79) and rate of complete remission with full or partial hematologic recovery (34.0% vs 15.3%) in patients with relapsed or refractory acute myeloid leukemia harboring a FLT3 internal tandem duplication (ITD), D835, or I836 mutation (PMID: 31665578; NCT02421939). detail... 31665578 detail...