Molecular Profile Detail

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Profile Name PIK3CA E726K PIK3CA H1047R
Gene Variant Detail

PIK3CA E726K (gain of function)

PIK3CA H1047R (gain 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 E726K PIK3CA H1047R breast cancer sensitive Alpelisib Preclinical - Cell culture Actionable In a preclinical study, breast epithelial cells expressing PIK3CA E726 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 E726 and PIK3CA H1047R in trans did not (PMID: 31699932). 31699932
PIK3CA E726K PIK3CA H1047R breast cancer sensitive GDC-0077 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 GDC-0077 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