Response Genetics, Inc., a life sciences company, researches, develops, markets, and sells pharmacogenomic tests for use in the treatment of cancer in the United States, Europe, and internationally. The company offers tests for measuring predictive factors for therapy response in tumor tissue samples. It provides testing services for non-small cell lung cancer, colorectal cancer, gastric and gastroesophageal cancer, melanoma and thyroid cancer, breast cancer, and glioma through its ResponseDX: Lung, ResponseDX: Colon, ResponseDX: Gastric, ResponseDX: Melanoma, ResponseDX: Thyroid, ResponseDX: Breast, ResponseDX: Glioma, and ResponseDX: Tissue of Origin test suites.