Breast Cancer IndexSM
Breast Cancer Index refines and improves risk stratification in patients with estrogen receptor (ER)-positive, lymph node-negative breast cancer, providing independent and complementary prognostic information useful for treatment decisions.
Of the 86% of patients identified by St. Gallen Risk Criteria as intermediate risk in a recent study1, only 26.5% were actually intermediate risk: 42.5% were low risk and 31% were high risk when re-stratified using the Breast Cancer Index. Using only the St. Gallen Criteria, 42.5% in the intermediate group would potentially have been over treated and 31% significantly undertreated.

Re-stratification of Intermediate and Low Risk Groups (n=93)
References:
1. Data on file, bioTheranostics Inc, San Diego, CA.