Impact Of Gene Expression Profiling Tests On Breast Cancer Outcomes

Download or read book Impact of Gene Expression Profiling Tests on Breast Cancer Outcomes written by Luigi Marchionni and published by DIANE Publishing. This book was released on 2009-05 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Assesses the evidence that three marketed gene expression-based assays improve prognostic accuracy, treatment choice, and health outcomes in women diagnosed with early stage breast cancer. Three gene expression assays were evaluated; Oncotype DX¿, MammaPrint® and the Breast Cancer Profiling (BCP or H/I ratio) test, and for gene expression signatures underlying the assays. They sought evidence on: analytic performance of tests; clinical validity; clinical utility; harms; and impact on clinical decision making and health care costs. Conclusions: Oncotype DX is furthest along the validation pathway, with retrospective evidence that it predicts distant spread and chemotherapy benefit to a clinically relevant extent over standard predictors. Illus.