When should the Oncotype DX test be used for DCIS patients?
The Oncotype DX Breast DCIS Score test is for patients who:
- Have been recently diagnosed with DCIS and are making treatment decisions with their doctor.
- Have had a lumpectomy or biopsy.
It’s performed after the original surgery to remove your DCIS tumor, but before you start treatment—since the test is intended to help guide treatment decisions. Learn more about how the Breast DCIS Score test works.
What is the difference between genetic tests (e.g., BRCA 1 and BRCA 2) and genomic tests like the Oncotype DX test?
Genetic tests help people understand their risk for getting cancer. Genomic tests help people who have been diagnosed with cancer with their treatment planning. Once you have cancer, the activity of certain genes in your tumor tissue influences the behavior of your tumor, including how likely it is to grow and spread. The Oncotype DX Breast DCIS Score test looks at these genes to help you and your doctor make decisions about your care.
What differentiates the anatomic stages of breast cancer? How does this affect my eligibility?
There are five different anatomic stages of breast cancer: 0, I, II, III, and IV. These stages tell you how much the cancer has grown and spread. For example, stage 0 cancer is an early form of cancer that is not invasive, contained in one place, while stage IV is cancer that has spread throughout the body. Learn more about the anatomic stages of cancer.
If you have ductal carcinoma in situ (DCIS), you have stage 0 (non-invasive) cancer. “In situ” means all of the cancer cells have not spread outside the milk duct. Only patients with DCIS are eligible for the Breast DCIS Score test.
If you have anatomic stage I, II, or IIIA breast cancer, you may be eligible for the Oncotype DX Breast Recurrence Score test.
What does it mean to be ER-positive or ER-negative?
Estrogen is one of the hormones in your body. It has many roles, such as triggering development of female characteristics and facilitating the reproductive process. In (and on) breast cells, there are “hormone receptors”—proteins that pick up estrogen signals that tell the cells to grow. They are called “estrogen receptors.”
If the cancer cells in your breast have estrogen receptors, they are called "ER-positive". ER-positive cancer cells (like normal breast cells) may receive signals from estrogen—so the cancer might respond to hormonal therapy. If the cancer cells don’t have estrogen receptors, they are classified as "ER-negative". With ER-negative cancer cells, hormonal treatment is unlikely to work, so your doctor will look for other options.
Patients with either ER-positive or ER-negative DCIS may qualify for the Oncotype DX Breast DCIS Score test.
How long will it take to get the results of the test?
Most results from the Breast DCIS Score test are available around two weeks from the date the tumor sample is received by the Exact Sciences laboratory. The results are sent to your doctor so that he or she can discuss the results with you and answer your questions.
Is the Oncotype DX test covered by insurance?
Below are videos that can help you learn more about DCIS, treatments and personalizing your breast cancer treatment with Oncotype DX test.
If you have questions about the Oncotype DX test and would like to speak with a knowledgeable Customer Service specialist at Exact Sciences, please contact us.
DCIS (Stage 0) Breast Cancer and the Oncotype DX Breast DCIS Score
Not all DCIS patients will benefit from the addition of radiation therapy to their treatment. Exact Sciences's Oncotype DX Breast Cancer Assay for DCIS patients provides a DCIS score from which breast cancer doctors and their patients can determine the appropriate personalized treatment plan.