Opko Health, Inc. announced that it has expanded its collaboration with Bristol-Myers Squibb Company relating to OPKO's diagnostic test technology. OPKO's simple blood tests are being developed, based on its proprietary platform technology, to identify biomarkers for a wide variety of diseases, including neurodegenerative disorders and various malignancies. Under the expanded collaboration, work will continue on the Alzheimer's project and additional investigations will use OPKO's technology in an attempt to identify biomarkers that are predictive of drug response(s) in several therapeutic areas.