Missing content? – Request curation!
Request curation for specific Genes, Variants, or PubMed publications.
Have questions, comments, or suggestions? - Let us know!
Email us at : ckbsupport@jax.org
Gene | PIK3CA |
Variant | act mut |
Impact List | unknown |
Protein Effect | gain of function |
Gene Variant Descriptions | PIK3CA act mut indicates that this variant results in a gain of function in the Pik3ca protein. However, the specific amino acid change has not been identified. |
Associated Drug Resistance | |
Category Variants Paths |
PIK3CA mutant PIK3CA act mut |
Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
---|---|---|---|---|---|---|---|
PIK3CA act mut PTEN dec exp | renal cell carcinoma | no benefit | Apitolisib | Case Reports/Case Series | Actionable | In a retrospective analysis from a Phase II clinical trial, patients with metastatic renal cell carcinoma treated with Apitolisib (GDC-0980) had no difference in progression-free survival when stratified by the presence (n=21) or absence (n=15) of PIK3CA activating mutation and/or decreased Pten expression (PMID: 26951309). | 26951309 |
PIK3CA act mut PTEN dec exp | renal cell carcinoma | no benefit | Everolimus | Case Reports/Case Series | Actionable | In a retrospective analysis from a Phase II clinical trial, patients with metastatic renal cell carcinoma treated with Afinitor (everolimus) had no difference in progression-free survival when stratified by the presence (n=21) or absence (n=17) of PIK3CA activating mutations (PMID: 26951309). | 26951309 |
PIK3CA act mut PTEN wild-type | breast cancer | sensitive | Everolimus | Preclinical - Cell culture | Actionable | In a preclinical study, 8/9 breast cancer cell lines harboring a PIK3CA activating mutation and PTEN wild-type demonstrated sensitivity to treatment with Afinitor (everolimus) in culture, resulting in decreased cell viability (PMID: 21358673). | 21358673 |
PIK3CA act mut PTEN wild-type | breast cancer | sensitive | Torkinib | Preclinical - Cell culture | Actionable | In a preclinical study, 9/9 breast cancer cell lines harboring a PIK3CA activating mutation and PTEN wild-type demonstrated sensitivity to treatment with Torkinib (PP242) in culture, resulting in decreased cell viability (PMID: 21358673). | 21358673 |
ARID1A mut PIK3CA act mut | ovarian cancer | sensitive | GSK126 | Preclinical - Cell culture | Actionable | In a preclinical study, expression of a constitutively active PIK3CA mutation in ARID1A-mutant ovarian cancer cell lines enhanced growth inhibition by GSK126 in culture (PMID: 25686104). | 25686104 |
CDKN2A loss PIK3CA act mut | lung squamous cell carcinoma | predicted - sensitive | Buparlisib + Palbociclib | Preclinical - Pdx | Actionable | In a preclinical study, treatment with the combination of Buparlisib (BYL719) and Ibrance (palbociclib) resulted in increased tumor growth inhibition compared to either agent alone in patient-derived xenograft (PDX) models of lung squamous cell carcinoma harboring PIK3CA E542K or E545K mutations with p16 (CDKN2A) loss, including models that also had either PIK3CA amplification or PTEN loss (PMID: 30093452). | 30093452 |