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Gene | PIK3CA |
Variant | exon10 |
Impact List | unknown |
Protein Effect | unknown |
Gene Variant Descriptions | PIK3CA exon 10 indicates an unspecified mutation has occurred in exon 10 (corresponding to amino acids 514 to 555) of the PIK3CA gene. PIK3CA exon 10 is sometimes reported as exon 9, when only coding exons are considered in numbering. |
Associated Drug Resistance | |
Category Variants Paths |
PIK3CA mutant PIK3CA exon10 |
Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
---|---|---|---|---|---|---|---|
PIK3CA exon10 | Her2-receptor negative breast cancer | predicted - sensitive | Everolimus | Phase III | Actionable | In a retrospective analysis of a Phase III trial (BOLERO-2), Afinitor (everolimus) demonstrated greater benefit on progression-free survival in patients with hormone receptor-positive, Erbb2 (Her2)-negative breast cancer harboring PIK3CA exon 10 (reported as exon 9) mutations (HR=0.26) compared to patients harboring PIK3CA exon 21 (reported as exon 20) mutations (HR=0.56) (PMID: 26503204; NCT00863655). | 26503204 |