N E W S R E L E A S E For information contact: Joni Morford, Communicore 714/721-8081 jmorford@communicore.com ORQUEST RECEIVES GRANT TO INVESTIGATE POLYMER MATRICES FOR CARTILAGE REGENERATION FOR IMMEDIATE RELEASE......November 19, 1996......Mountain View, Calif......In September, 1996, Orquest, Inc. received a $100,000 Small Business Innovation Research Grant from the U.S. Department of Health and Human Services' Public Health Service, the company announced today. The grant will support fundamental research in the development of polymer matrices for regeneration of articular cartilage, the smooth cartilage that lines the body's joints. The long-term objective of the research to be performed under this grant is to develop a matrix material that supports the "in situ" repair of articular cartilage. Such a therapeutic product may reduce pain and allow patients with damaged or degraded cartilage to return to normal activities. "Progress toward therapeutic products for articular cartilage regeneration has lagged far behind progress in other orthopedic applications," said Dr. Robert Spiro, Orquest's Director of Bone and Cartilage Research and Principal Investigator for the new research initiative. "This grant will leverage the platform matrix technology Orquest is developing in the field of bone regeneration to advance our understanding of cartilage regeneration." Despite years of basic and applied research, no consistently effective and approved product for articular cartilage grafting or regeneration exists. Past approaches, such as transplantation of host cartilage and implantation of prosthetic devices, have been largely unsuccessful and only offer a temporary solution. A more recent investigative approach involves culturing cartilage-forming cells outside the body (ex vivo) to generate grafting material. This method, however, faces many manufacturing obstacles, and is expected to be very costly. The successful development of a matrix for repair and regeneration of articular cartilage would have a major impact on orthopedic healthcare. Orquest believes this matrix may find widespread acceptance in the treatment of traumatic and degenerative articular cartilage injuries based on the ease of use during arthroscopic surgery, the efficacy in stimulating cartilage tissue re-growth without ex vivo culturing, and the cost effectiveness of the production process. More than one million people annually may benefit from replacement of cartilage damaged by injury or degenerative diseases, both of which can be extremely painful and even disabling. Serious cartilage damage can also result in a life-long reduction in physical activities. "Development of a minimally invasive product for regeneration of articular cartilage would have a major positive impact on millions of patients' quality of life," said Dr. James Poser, Orquest's Vice President of Research and Development. "While development of a viable product is a long-term goal, the research initiated under this grant is an important, novel first step in the process." Orquest, Inc., a private company based in Mountain View, Calif., was founded in 1994 with the vision of developing and marketing bioengineered matrices that promote bone and cartilage regeneration in targeted applications. Orquest currently has two orthopedic products in development: Healos¨, a synthetic bone graft alternative, and Ossigelª, a matrix for accelerated fracture healing. End of document.