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Prosigna® Breast Cancer Prognostic Gene Signature Assay
Using prognostic information to inform next steps in patient care

The Prosigna Breast Cancer Prognostic Gene Signature Assay uses advanced genomic technology to inform next steps for patients with early-stage breast cancer, based on the genomic make-up of their disease. The test analyzes the activity of 50 genes known as the PAM50 gene signature, along with clinical-pathological features, and can provide a hormone-receptor positive early breast cancer patient and her physician with a prognostic score indicating the probability of cancer recurrence during the next 10 years. Outside of the United States, it is also utilized to provide PAM50 molecular subtype information.

Physicians use Prosigna to help guide therapeutic decisions so that patients receive therapeutic interventions, such as chemotherapy, only if clinically warranted. The in vitro diagnostic test is indicated in female breast cancer patients who have undergone surgery in conjunction with locoregional treatment consistent with standard of care, either as:

  1. A prognostic indicator for distant recurrence‐free survival at ten years in post‐menopausal women with Hormone Receptor‐Positive (HR+), lymph node‐negative, Stage I or II breast cancer to be treated with adjuvant endocrine therapy alone, when used in conjunction with other clinicopathological factors; or

  2. A prognostic indicator for distant recurrence‐free survival at ten years in post‐menopausal women with Hormone Receptor‐Positive (HR+), lymph node‐positive (1‐3 positive nodes), Stage II breast cancer to be treated with adjuvant endocrine therapy alone, when used in conjunction with other clinicopathological factors. The device is not intended for patients with 4 or more positive nodes.
The Prosigna test is FDA 510(k) cleared in the United States for use on the nCounter® Dx Analysis System and is available for use when ordered by a physician. The test is performed on formalin-fixed and paraffin-embedded tissue. The Prosigna test has been CE-marked, showing that it conforms with European Union regulations, and is available for use by healthcare professionals in the European Union and other countries that recognize the CE mark, as well as in Canada, Israel, Australia, New Zealand and Hong Kong. The test is covered by Medicare and leading private payers in the United States and is widely covered by government and private payers in the countries where it is available

The Prosigna test is performed in laboratories around the world on the nCounter Dx Analysis System, which offers a reproducible and cost-effective way to analyze many genes simultaneously with high sensitivity and precision, while requiring minimum hands-on time in the laboratory.




Learn more about the Prosigna Breast Cancer Signature Assay

Prosigna.com