A multiparameter classifier to predict response to lapatinib plus trastuzumab (LT) without chemotherapy in HER2+ breast cancer (BC).
Veeraraghavan J, Gutierrez C, De Angelis C, Wang T, Pascual T, Weigelt B, Galvan P, Rexer B, Forero-Torres A, Wolff A, Nanda R, Storniolo A, Krop I, Goetz M, Reis-Filho J, Hilsenbeck S, Prat A, Osborne C, Schiff R, Rimawi M. A multiparameter classifier to predict response to lapatinib plus trastuzumab (LT) without chemotherapy in HER2+ breast cancer (BC). Journal Of Clinical Oncology 2020, 38: 1011-1011. DOI: 10.1200/jco.2020.38.15_suppl.1011.Peer-Reviewed Original ResearchPIK3CA mutation statusBreast cancerHER2 ratioMutation statusPathologic complete response rateIntratumor heterogeneityRate of CTXComplete response rateData cohortDe-escalation strategiesLT therapyEvaluable patientsUnselected patientsClinical trialsTargeted therapyProspective validationHER2 geneResponse rateAdditional casesHER2PatientsHER2 proteinCohortPAM50Protein levels