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Profile Name | PIK3CA E726K |
Gene Variant Detail | |
Relevant Treatment Approaches | Akt Inhibitor (Pan) Akt1 Inhibitor Akt2 Inhibitor mTOR Inhibitor mTORC1 Inhibitor mTORC2 Inhibitor PI3K Inhibitor (Pan) PIK3CA inhibitor |
Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
---|---|---|---|---|---|---|---|
PIK3CA E78K PIK3CA E726K PIK3CA D939G | estrogen-receptor positive breast cancer | no benefit | Alpelisib + Letrozole | Phase Ib/II | Actionable | In a Phase Ib trial, an estrogen-receptor positive breast cancer patient harboring PIK3CA mutations, E78K, D939G, and E726K, demonstrated progressive disease when treated with a combination of Femara (letrozole) and Alpelisib (BYL719) (PMID: 27126994). | 27126994 |
PIK3CA E545K PIK3CA E726K | breast cancer | sensitive | Alpelisib | Preclinical - Cell culture | Actionable | In a preclinical study, breast epithelial cells expressing PIK3CA E545K and PIK3CA E726K in cis demonstrated increased sensitivity to growth inhibition by Piqray (Alpelisib) treatment compared to cells expressing individual PIK3CA mutations in culture (PMID: 31699932). | 31699932 |
PIK3CA E726K PIK3CA H1047R | breast cancer | sensitive | Alpelisib | Preclinical - Cell culture | Actionable | In a preclinical study, breast epithelial cells expressing PIK3CA E726K and PIK3CA H1047R in cis demonstrated increased sensitivity to growth inhibition by Piqray (Alpelisib) treatment compared to cells expressing individual PIK3CA mutations in culture, while cells expressing PIK3CA E726K and PIK3CA H1047R in trans did not (PMID: 31699932). | 31699932 |
PIK3CA E545K PIK3CA E726K | breast cancer | sensitive | Inavolisib | Preclinical - Cell culture | Actionable | In a preclinical study, breast epithelial cells expressing PIK3CA E545K and PIK3CA E726K in cis demonstrated increased sensitivity to growth inhibition by Inavolisib (GDC-0077) treatment compared to cells expressing individual PIK3CA mutations in culture (PMID: 31699932). | 31699932 |
PIK3CA E726K PIK3CA H1047R | breast cancer | sensitive | Inavolisib | Preclinical - Cell culture | Actionable | In a preclinical study, breast epithelial cells expressing PIK3CA E726K and PIK3CA H1047R in cis demonstrated increased sensitivity to growth inhibition by Inavolisib (GDC-0077) treatment compared to cells expressing individual PIK3CA mutations in culture (PMID: 31699932). | 31699932 |
PIK3CA E545K PIK3CA E726K | breast cancer | sensitive | Everolimus | Preclinical - Cell culture | Actionable | In a preclinical study, breast epithelial cells expressing PIK3CA E545K and PIK3CA E726K in cis demonstrated increased sensitivity to growth inhibition by Afinitor (everolimus) treatment compared to cells expressing individual PIK3CA mutations in culture (PMID: 31699932). | 31699932 |
PIK3CA E726K PIK3CA H1047R | breast cancer | sensitive | Everolimus | Preclinical - Cell culture | Actionable | In a preclinical study, breast epithelial cells expressing PIK3CA E726K and PIK3CA H1047R in cis demonstrated increased sensitivity to growth inhibition by Afinitor (everolimus) treatment compared to cells expressing individual PIK3CA mutations in culture (PMID: 31699932). | 31699932 |
PIK3CA E726K PIK3CA H1047R | breast cancer | sensitive | Alpelisib | Preclinical - Biochemical | Actionable | In a preclinical study, Piqray (alpelisib) decreased viability of a breast cancer cell line harboring PIK3CA H1047R and expressing PIK3CA E726K in culture (PMID: 37916958). | 37916958 |
PIK3CA E726K PIK3CA H1047R | breast cancer | sensitive | Inavolisib | Preclinical - Cell culture | Actionable | In a preclinical study, Inavolisib (GDC-0077) decreased viability of a breast cancer cell line harboring PIK3CA H1047R and expressing PIK3CA E726K in culture (PMID: 37916958). | 37916958 |
PIK3CA E726K PIK3CA H1047R | breast cancer | sensitive | Taselisib | Preclinical - Cell culture | Actionable | In a preclinical study, Taselisib (GDC-0032) decreased viability of a breast cancer cell line harboring PIK3CA H1047R and expressing PIK3CA E726K in culture (PMID: 37916958). | 37916958 |
PIK3CA E726K PIK3CA H1047R | breast cancer | resistant | Pictilisib | Preclinical - Cell culture | Actionable | In a preclinical study, a breast cancer cell line harboring PIK3CA H1047R and expressing PIK3CA E726K was resistant to Pictilisib (GDC-0941) in culture (PMID: 37916958). | 37916958 |
PIK3CA E726K PIK3CA H1047R | breast cancer | resistant | Miransertib | Preclinical - Cell culture | Actionable | In a preclinical study, a breast cancer cell line harboring PIK3CA H1047R and expressing PIK3CA E726K was resistant to Miransertib (ARQ092) in culture (PMID: 37916958). | 37916958 |
PIK3CA E726K PIK3CA H1047R | breast cancer | sensitive | Ipatasertib | Preclinical - Cell culture | Actionable | In a preclinical study, Ipatasertib (GDC-0068) decreased viability of a breast cancer cell line harboring PIK3CA H1047R and expressing PIK3CA E726K in culture (PMID: 37916958). | 37916958 |
PIK3CA E545K PIK3CA E726K | breast cancer | sensitive | Alpelisib | Preclinical - Cell culture | Actionable | In a preclinical study, Piqray (alpelisib) decreased viability of a breast cancer cell line harboring PIK3CA E545K and expressing PIK3CA E726K in culture (PMID: 37916958). | 37916958 |
PIK3CA E545K PIK3CA E726K | breast cancer | sensitive | Inavolisib | Preclinical - Cell culture | Actionable | In a preclinical study, Inavolisib (GDC-0077) decreased viability of a breast cancer cell line harboring PIK3CA E545K and expressing PIK3CA E726K in culture (PMID: 37916958). | 37916958 |
PIK3CA E545K PIK3CA E726K | breast cancer | sensitive | Taselisib | Preclinical - Cell culture | Actionable | In a preclinical study, Taselisib (GDC-0032) decreased viability of a breast cancer cell line harboring PIK3CA E545K and expressing PIK3CA E726K in culture (PMID: 37916958). | 37916958 |
PIK3CA E545K PIK3CA E726K | breast cancer | sensitive | Pictilisib | Preclinical - Cell culture | Actionable | In a preclinical study, Pictilisib (GDC-0941) decreased viability of a breast cancer cell line harboring PIK3CA E545K and expressing PIK3CA E726K in culture (PMID: 37916958). | 37916958 |
PIK3CA E545K PIK3CA E726K | breast cancer | sensitive | Ipatasertib | Preclinical - Cell culture | Actionable | In a preclinical study, Ipatasertib (GDC-0068) decreased viability of a breast cancer cell line harboring PIK3CA E545K and expressing PIK3CA E726K in culture (PMID: 37916958). | 37916958 |
PIK3CA E726K PIK3CA H1047R | breast cancer | resistant | RLY-2608 | Preclinical - Cell culture | Actionable | In a preclinical study, a breast cancer cell line harboring PIK3CA H1047R and expressing PIK3CA E726K was resistant to RLY-2608 treatment in culture (PMID: 37916958). | 37916958 |