Molecular Profile Detail

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Profile Name PIK3CA E78K PIK3CA E726K PIK3CA D939G
Gene Variant Detail

PIK3CA D939G (gain of function - predicted)

PIK3CA E726K (gain of function - predicted)

PIK3CA E78K (unknown)

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 E78K PIK3CA E726K PIK3CA D939G estrogen-receptor positive breast cancer no benefit Alpelisib + Letrozole Phase Ib/II Actionable In a Phase Ib trial, an estrogen-receptor positive breast cancer patient harboring PIK3CA mutations, E78K, D939G, and E726K, demonstrated progressive disease when treated with a combination of Femara (letrozole) and Alpelisib (BYL719) (PMID: 27126994). 27126994
Clinical Trial Phase Therapies Title Recruitment Status