Response Genetics, Inc. (Nasdaq:

), a company focused on the development and sale of molecular diagnostic tests that help determine a patient's response to cancer therapy, today announced that it has entered into an agreement with MultiPlan, Inc., the industry's most comprehensive provider of healthcare cost management solutions. As a participating provider in the PHCS and MultiPlan Networks, MultiPlan's clients will now have access to all of Response Genetics' molecular diagnostic testing. Response Genetics specializes in predictive genomic testing that supplies treating physicians with actionable information helping the physicians determine what drugs will have the greatest response from each of their patients battling lung, colorectal, gastric and melanoma cancers. The personalized nature of Response Genetics' testing allows for each patient to be placed on the most effective drug regimen for his or her cancer treatment. About MultiPlan MultiPlan, Inc. is the industry's most comprehensive provider of healthcare cost management solutions. The company provides a single gateway to a host of primary, complementary and out-of-network strategies for managing the financial risks associated with healthcare claims. Clients include insurers/health plans, third-party administrators, self-funded employers, HMOs and other entities that pay medical bills in the commercial healthcare, government, workers compensation and auto markets. MultiPlan contracts with over 900,000 healthcare providers across the nation and has an estimated 67 million consumers accessing its provider network products. MultiPlan is owned by BC Partners, a leading international private equity firm, and Silver Lake, the world's largest private investor in technology. For more information, visit www.MultiPlan.com. About Response Genetics, Inc. Response Genetics, Inc. (the "Company") is a CLIA-certified clinical laboratory focused on the development and sale of molecular diagnostic testing services for cancer. The Company's technologies enable extraction and analysis of genetic information derived from tumor cells stored as formalin-fixed and paraffin-embedded specimens. The Company's principal customers include oncologists and pathologists. In addition to diagnostic testing services, the Company generates revenue from the sale of its proprietary analytical pharmacogenomic testing services of clinical trial specimens to the pharmaceutical industry. The Company's headquarters is located in Los Angeles, California. For more information, please visit www.responsegenetics.com.