Gene Variant Detail

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Gene PIK3CA
Variant amp
Impact List none
Protein Effect no effect
Gene Variant Descriptions PIK3CA amplification indicates an increased number of copies of the PIK3CA gene. However, the mechanism causing the increase is unspecified.
Associated Drug Resistance
Category Variants Paths

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No Variant Reference Transcript is Available.
No transcript is Available.

Filtering

  • Case insensitive filtering will display rows if any text in any cell matches the filter term
  • Use simple literal full or partial string matches
  • Separate multiple filter terms with a space. Any order may be used (i. e. a b c and c b a are equivalent )
  • Filtering will only apply to rows that are already loaded on the page. Filtering has no impact on query parameters.
  • Use quotes to match on a longer phrase with spaces (i.e. "mtor c1483f")

Sorting

  • Generally, the default sort order for tables is set to be first column ascending; however, specific tables may set a different default sort order.
  • Click on any column header arrows to sort by that column
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Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
PIK3CA E545K PIK3CA amp lung squamous cell carcinoma predicted - sensitive Buparlisib Preclinical - Cell line xenograft Actionable In a preclinical study, Buparlisib (BKM120) treatment resulted in inhibition of AKT and S6 phosphorylation and durable responses in 2 of 3 lung squamous cell carcinoma patient-derived xenograft (PDX) models harboring PIK3CA E545K and PIK3CA amplification (PMID: 30093452). 30093452
PIK3CA E545K PIK3CA amp cervical cancer sensitive Copanlisib + Neratinib Preclinical - Cell line xenograft Actionable In a preclinical study, the combination of Aliqopa (copanlisib) and Nerlynx (neratinib) synergistically inhibited viability of a cervical cancer cell line harboring PIK3CA E545K with PIK3CA amplification in culture and inhibited tumor growth and increased survival in a cell line xenograft model (PMID: 31624127). 31624127
PIK3CA E542K PIK3CA amp lung squamous cell carcinoma sensitive Buparlisib Preclinical - Pdx Actionable In a preclinical study, Buparlisib (BKM120) treatment resulted in inhibition of AKT and S6 phosphorylation and durable response in a lung squamous cell carcinoma patient-derived xenograft (PDX) model harboring PIK3CA E542K and PIK3CA amplification (PMID: 30093452). 30093452
PIK3CA E542K PIK3CA amp lung squamous cell carcinoma sensitive Alpelisib Preclinical - Pdx Actionable In a preclinical study, Alpelisib (BYL719) treatment resulted in response in a lung squamous cell carcinoma patient-derived xenograft (PDX) model harboring PIK3CA E542K and PIK3CA amplification (PMID: 30093452). 30093452
CDKN2A loss PIK3CA E545K PIK3CA amp lung squamous cell carcinoma 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 E545K and PIK3CA amplification, with p16 (CDKN2A) loss (PMID: 30093452). 30093452
CDKN2A loss PIK3CA E542K PIK3CA amp lung squamous cell carcinoma 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 a patient-derived xenograft (PDX) model of lung squamous cell carcinoma harboring PIK3CA E542K and PIK3CA amplification, with p16 (CDKN2A) loss (PMID: 30093452). 30093452
PIK3CA M1043I PIK3CA amp bladder urothelial carcinoma predicted - sensitive Everolimus Case Reports/Case Series Actionable In a clinical case study, a patient with metastatic urothelial bladder cancer harboring PIK3CA M1043I and PIK3CA amplification (copy number >20), as well as amplification of CCND1 and loss of CDKN2A and CDKN2B, was treated with Afinitor (everolimus) and achieved a complete response including remission of lymph node metastases, and remained progression-free at 6 months (PMID: 33745098). 33745098
MAP2K1 E203K PIK3CA amp skin squamous cell carcinoma predicted - sensitive Metformin + Trametinib Case Reports/Case Series Actionable In a clinical case study, a combination of Glucophage (metformin) and Mekinist (trametinib) resulted in a complete clinical response and continued remission for over two years in a patient with cutaneous squamous cell carcinoma with amplification of PIK3CA and harboring MAP2K1 E203K (PMID: 35005996). 35005996
PIK3CA amp PTEN H123P triple-receptor negative breast cancer predicted - sensitive Alpelisib + Everolimus Preclinical - Pdx & cell culture Actionable In a preclinical study, combination treatment with Piqray (albelisib) and Afinitor (everolimus) synergistically inhibited cell viability of patient-derived triple-negative breast cancer cells harboring PIK3CA amplification and PTEN H123P in culture, and led to inhibition of tumor growth in a patient-derived xenograft (PDX) model (PMID: 36900375). 36900375
PIK3CA amp PTEN H123P triple-receptor negative breast cancer predicted - sensitive Afatinib + Alpelisib Preclinical - Pdx & cell culture Actionable In a preclinical study, combination treatment with Piqray (albelisib) and Gilotrif (afatinib) synergistically inhibited cell viability of patient-derived triple-negative breast cancer cells harboring PIK3CA amplification and PTEN H123P in culture, and led to inhibition of tumor growth in a patient-derived xenograft (PDX) model (PMID: 36900375). 36900375
PIK3CA H1047L PIK3CA amp head and neck squamous cell carcinoma sensitive Alpelisib + Tipifarnib Preclinical - Pdx Actionable In a preclinical study, the combination of Piqray (alpelisib) and Zarnestra (tipifarnib) inhibited tumor growth in a patient-derived xenograft (PDX) model of PIK3CA-amplified head and neck squamous cell carcinoma harboring PIK3CA H1047L (PMID: 37339176). 37339176