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| Gene | FLT3 |
| Variant | amp |
| Impact List | none |
| Protein Effect | no effect |
| Gene Variant Descriptions | FLT3 amplification indicates an increased number of copies of the FLT3 gene. However, the mechanism causing the increase is unspecified. |
| Associated Drug Resistance | |
| Category Variants Paths |
FLT3 amp |
| Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
|---|---|---|---|---|---|---|---|
| FLT3 amp | colorectal cancer | predicted - sensitive | Sorafenib | Case Reports/Case Series | Actionable | In a clinical case study, Nexavar (sorafenib) treatment targeting FLT3 amplification in a rectal adenocarcinoma patient who had progressed on all standard therapies resulted in rapid clinical improvement (PMID: 25848357). | 25848357 |
| FLT3 amp | colorectal cancer | no benefit | Sunitinib | Phase II | Actionable | In a Phase II trial (TAPUR), treatment with Sutent (sunitinib) did not demonstrate clinical activity in patients with colorectal cancer with FLT3 amplification (n=10), resulting in no objective responses and stable disease at 16 weeks in 2 patients (PMID: 33068284; NCT02693535). | 33068284 |