Genomic Health, Inc., a healthcare company, provides actionable genomic information to personalize cancer treatment decisions in the United States and internationally. It develops and commercializes genomic-based clinical laboratory services that analyze the underlying biology of cancer, allowing physicians and patients to make individualized treatment decisions. The company offers the Oncotype DX invasive breast cancer test that is used for early stage invasive breast cancer patients to predict the likelihood of breast cancer recurrence and chemotherapy benefit. It also provides the Oncotype DX colon cancer test, which is used to predict the likelihood of colon cancer recurrence in patients with stage II disease, as well as for use in patients with stage III disease treated with oxaliplatin-containing adjuvant therapy. In addition, the company provides the Oncotype DX tests for patients with ductal carcinoma in situ, a pre-invasive form of breast cancer; and Oncotype DX prostate cancer test, which provides a genomic prostate score to predict disease aggressiveness in men with low risk disease, as well as used to enhance treatment decisions for prostate cancer patients in conjunction with the Gleason score or tumor grading. Genomic Health, Inc. was founded in 2000 and is based in Redwood City, California.