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Profile Name | PIK3CA N345K |
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 | Relevant Treatment Approaches | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
---|---|---|---|---|---|---|---|---|
PIK3CA N345K | breast cancer | sensitive | mTOR Inhibitor PI3K Inhibitor (Pan) | Dactolisib | Preclinical | Actionable | In a preclinical study, BEZ235 inhibited survival of transformed breast epithelial cell lines overexpressing PIK3CA N345K in culture (PMID: 26627007). | 26627007 |
PIK3CA N345K | breast cancer | sensitive | PIK3CA inhibitor | Alpelisib | Preclinical - Cell culture | Actionable | In a preclinical study, Alpelisib (BYL719) inhibited survival of transformed breast epithelial cell lines overexpressing PIK3CA N345K in culture (PMID: 26627007). | 26627007 |
PIK3CA N345K | breast cancer | sensitive | Akt Inhibitor (Pan) | MK2206 | Preclinical | Actionable | In a preclinical study, MK2206 inhibited survival of transformed breast epithelial cell lines overexpressing PIK3CA N345K in culture (PMID: 26627007). | 26627007 |
PIK3CA N345K | breast cancer | sensitive | Lapatinib | Preclinical | Actionable | In a preclinical study, Tykerb (lapatinib) inhibited survival of transformed breast epithelial cell lines overexpressing PIK3CA N345K in culture (PMID: 26627007). | 26627007 | |
PIK3CA N345K | breast cancer | sensitive | Neratinib | Preclinical | Actionable | In a preclinical study, Nerlynx (neratinib) inhibited survival of transformed breast epithelial cell lines overexpressing PIK3CA N345K in culture (PMID: 26627007). | 26627007 | |
PIK3CA N345K | breast cancer | sensitive | Trametinib | Preclinical | Actionable | In a preclinical study, Mekinist (trametinib) inhibited survival of transformed breast epithelial cell lines overexpressing PIK3CA N345K in culture (PMID: 26627007). | 26627007 | |
PIK3CA N345K | Advanced Solid Tumor | sensitive | Trametinib | Preclinical | Actionable | In a preclinical study, Mekinist (trametinib) inhibited survival of transformed cell lines overexpressing PIK3CA N345K in culture (PMID: 26627007). | 26627007 | |
PIK3CA N345K | lung squamous cell carcinoma | no benefit | PIK3CA inhibitor | Taselisib | Case Reports/Case Series | Actionable | In a Phase I (SWOG S1400B) trial, Taselisib (GDC-0032) treatment did not meet its primary endpoint for response rate in patients with lung squamous cell carcinoma harboring PIK3CA mutations, resulting in no response in two patients harboring PIK3CA N345K (PMID: 31158500; NCT02785913). | 31158500 |
PIK3CA N345K | endometrial mixed adenocarcinoma | no benefit | PIK3CA inhibitor | Copanlisib | Case Reports/Case Series | Actionable | In a Phase II (NRG-GY008) trial, Aliqopa (copanlisib) was well tolerated but demonstrated limited efficacy, resulted in stable disease in a patient with endometrial mixed adenocarcinoma harboring PIK3CA N345K (PMID: 31934607). | 31934607 |
PIK3CA N345K | head and neck squamous cell carcinoma | predicted - sensitive | PIK3CA inhibitor | Alpelisib | Preclinical - Cell culture | Actionable | In a preclinical study, treatment with Piqray (alpelisib) resulted in inhibition of proliferation and increased apoptosis in a head and neck squamous cell carcinoma cell line expressing PIK3CA N345K in culture (PMID: 34779417). | 34779417 |