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Molecular Profile PIK3CA mutant
Therapy Ado-trastuzumab emtansine
Indication/Tumor Type Her2-receptor positive breast cancer
Response Type not predictive

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Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
PIK3CA mutant Her2-receptor positive breast cancer not predictive Ado-trastuzumab emtansine Phase III Actionable In a retrospective analysis of a Phase III trial (KATHERINE), adjuvant Kadcyla (ado-trastuzumab emtansine) treatment demonstrated similar invasive disease-free survival benefit over Herceptin (trastuzumab) in PIK3CA mutant (HR=0.54) and PIK3CA wild-type (HR=0.48) patients with Erbb2 (Her2)-positive breast cancer who had residual invasive disease after neoadjuvant therapy (PMID: 36730339; NCT01772472). 36730339
PubMed Id Reference Title Details
(36730339) Biomarker Data from the Phase III KATHERINE Study of Adjuvant T-DM1 versus Trastuzumab for Residual Invasive Disease after Neoadjuvant Therapy for HER2-Positive Breast Cancer. Full reference...