Molecular Profile Detail

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Profile Name PIK3CA E545K PTEN loss
Gene Variant Detail

PIK3CA E545K (gain of function)

PTEN loss (loss of function)

Relevant Treatment Approaches

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Molecular Profile Indication/Tumor Type Response Type Relevant Treatment Approaches Therapy Name Approval Status Evidence Type Efficacy Evidence References
PIK3CA E545K PTEN loss 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 PTEN loss (PMID: 30093452). 30093452
PIK3CA E545K PTEN loss stomach cancer unknown Sirolimus Phase 0 Actionable In a pilot clinical trial, Rapamune (sirolimus) demonstrated modest clinical activity in patients with PIK3CA-mutant gastric cancer (n=3) or hilar cholangiocarcinoma (n=1), including 2 gastric cancer patients harboring PIK3CA E545K and PTEN loss, with a 0% response rate, median progression-free survival of 1.9 months, and median overall survival of 3.6 months (PMID: 28685070). 28685070
Clinical Trial Phase Therapies Title Recruitment Status Covered Countries Other Countries