Breast cancer 10-year risk of distant recurrence score Calculated by Prosigna

Brst ca 10Y dist recur score Prosigna

Definition

The 10-year breast cancer distant recurrence risk score (also referred to as ROR Score or Risk of Recurrence Score) is a numerical score on a scale of 0 -100 that is calculated using a statistical model that includes: 1) the results from a 50-gene expression assay performed on formalin fixed paraffin embedded breast tumor tissue previously diagnosed as invasive carcinoma; 2) proliferation score; and 3) gross tumor size. The calculated score and information about lymph node status are used together to classify the patient into a risk category for distant breast cancer recurrence at 10 years. This term was created for the Prosigna™ Breast Cancer Prognostic Gene Signature assay, which is intended for use in postmenopausal women with node-negative (Stage I or II) or node-positive (Stage II), hormone receptor-positive (HR+) breast cancer who have undergone surgery and are to be treated with adjuvant endocrine therapy alone.

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