Molecular Profile Detail

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Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
PIK3CA E453K PIK3CA E545A stomach cancer sensitive Alpelisib Preclinical - Cell culture Actionable In a preclinical study, Piqray (alpelisib) inhibited growth and induced cell cycle arrest and inhibited phosphorylation of Akt and S6 in a gastric cancer cell line harboring PIK3CA E545A and E453K in culture (PMID: 37493631). 37493631
PIK3CA E453K PIK3CA E545A stomach cancer sensitive Alpelisib + Dasatinib Preclinical - Cell culture Actionable In a preclinical study, the addition of Sprycel (dasatinib) to Piqray (alpelisib) treatment resulted in an increased inhibition of proliferation in a gastric cancer cell line harboring PIK3CA E545A and E453K in culture (PMID: 37493631). 37493631
PIK3CA E453K PIK3CA E545A stomach cancer sensitive A-1331852 + Alpelisib Preclinical - Cell culture Actionable In a preclinical study, the combination of Piqray (alpelisib) and A-1331852 synergistically inhibited viability in a gastric cancer cell line harboring PIK3CA E545A and E453K in culture (PMID: 37493631). 37493631
FGFR2 T319I PIK3CA N345K PIK3CA E453K Her2-receptor negative breast cancer predicted - resistant Inavolisib Case Reports/Case Series Actionable In a clinical case study, FGFR2 T319I was identified in circulating tumor DNA at the time of progression on Inavolisib (GDC-0077) in a patient with ESR1-positive, ERBB2 (HER2)-negative breast cancer harboring PIK3CA N345K and E453K (PMID: 37916958). 37916958
PIK3CA E453K PIK3CA H1047R estrogen-receptor positive breast cancer predicted - sensitive RLY-2608 Case Reports/Case Series Actionable In a clinical case study, treatment with RLY-2608 resulted in a partial response with a reduction in liver, lung, and soft tissue target lesions in a patient with ESR1/PGR-positive, ERBB2 (HER2)-low breast cancer harboring PIK3CA H1047R and PIK3CA E453K (PMID: 37916956; NCT05216432). 37916956