What is the Oncotype DX test?
The Oncotype DX test is a breast cancer test that looks at the activity of 21 genes within a woman’s tumor sample in order to provide an individual probability of the likelihood of breast cancer returning in women with early-stage breast cancer whose tumor is estrogen-receptor-positive and lymph-node-negative or in post-menopausal women whose tumor is lymph-node-positive and hormone-receptor-positive. In addition, the Oncotype DX test provides information about how much benefit a woman is likely to get from chemotherapy (commonly used drugs in early-stage breast cancer) in addition to hormone therapy. For additional information about the Oncotype DX test, click here.
