Prospective Study Evaluating the Probability of OncotypeDx to Allocate At Low or High Risk of Recurrence Early ER Positive HER2 Negative Breast Cancer Patients with Uncertain Biological Behavior Evaluated by Pathological Parameters
Prospective Study Evaluating the Probability of OncotypeDx to Allocate At Low or High Risk of Recurrence Early ER Positive HER2 Negative Breast Cancer Patients with Uncertain Biological Behavior Evaluated by Pathological Parameters
In some cases of hormone receptor positive, human epidermal growth factor receptor 2 (HER2) negative early breast cancer the benefit of adding adjuvant chemotherapy to hormonal treatment, estimated on the basis of the classical clinico-pathological parameters, is unclear. In these cases the application of a genomic test could be useful in guiding the therapeutic choice.
Oncotype Dx (ODx) is a 21-gene assay that classifies primary ER+ breast tumors into three categories of recurrence risk: High (HR), Intermediate (IR) and Low (LR).
Available data show that
In this study, the investigators aim to evaluate the capability of ODx to help in guiding the choice of systemic adjuvant treatment in a group of patients with ER+ and HER2- , node negative (pN0) or micrometastatic (pNmi) breast cancer with uncertain biological behavior for whom there is uncertainty about the indication of adjuvant chemotherapy.
Inclusion Criteria:
Exclusion Criteria: