Exact Sciences to present new data on screening and diagnostic portfolio at ASCO

Exact Sciences will present 10 abstracts highlighting the breadth and depth of the company’s screening and diagnostic portfolio at the American Society of Clinical Oncology Annual Meeting, taking place May 31 – June 4, 2024, in Chicago, Ill. Presentations will include new data confirming both the predictive and prognostic value of the Oncotype DX Breast Recurrence Score test in racially and ethnically diverse patients. Exact Sciences will also present data on its approach to multi-cancer early detection across multiple tumor types, plus additional real-world evidence showing optimized screening adherence strategies for the Cologuard test as well as high adherence rates for repeat screenings. New data from two studies evaluating Recurrence Score results showed that the Oncotype DX Breast Recurrence Score test predicted breast cancer survival across different racial and ethnic groups. The first study confirmed that the test is prognostic for breast cancer-specific mortality and predictive of chemotherapy benefit across racial and ethnic groups in lymph node-negative patients, following propensity score-adjusted analyses. This real-world study of more than 171,000 patients with nonmetastatic, hormone receptor-positive, HER2-negative breast cancer with a Recurrence Score result from the SEER database also showed that the Recurrence Score result was predictive of chemotherapy benefit across all node-positive patients. In the study, non-Hispanic Black patients were shown to have a higher Recurrence Score result and chemotherapy usage compared to other groups. Exploratory analyses of the RxPONDER trial showed that while the test remained prognostic across racial and ethnic groups, non-Hispanic Black patients had higher proliferation axis scores, suggesting that differences in tumor biology may help explain differences in breast cancer outcomes.