CHICAGO, June 4, 2011 /PRNewswire/ -- Genomic Health, Inc. (Nasdaq: GHDX) today announced results of ten studies being presented at the American Society of Clinical Oncology (ASCO) Annual Meeting, including a second large validation study confirming the performance of the Oncotype DX® colon cancer Recurrence Score® (RS) as an independent predictor of recurrence risk in stage II colon cancer.  The company also will present positive findings from a prostate gene identification study, as well as multiple studies in breast cancer including one suggesting that neoadjuvant treatment selection can also be guided by the underlying biology revealed by the Oncotype DX breast cancer test.

"Our continued research in breast, colon and prostate cancers add to the growing body of clinical evidence demonstrating the importance of understanding and treating a patient's underlying individual tumor biology," said Steven Shak, M.D., chief medical officer at Genomic Health,  "These ten studies presented at ASCO reflect our ability to continue adding value to the Oncotype DX breast and colon cancer tests that physicians use today, while accelerating our prostate cancer clinical development program, with the goal of making a test for biopsy specimens available to patients and physicians in 2013."

Research Highlights:

Colon Cancer:  

Second Successful Prospectively-Designed Study Confirms Oncotype DX Colon Cancer Test Provides Value Beyond Conventional Markers

Supporting the original QUASAR study presented at ASCO in 2009, new results from a separate large clinical validation study of stage II colon cancer patients enrolled in CALGB 9581 further confirms that the Oncotype DX Recurrence Score result improves the ability to differentiate higher from low