June 14, 1999 Company Press Release Avigen's Gene Therapy Technology Shows Promise for Treating Parkinson's Disease Research Presented by Dr. Krys Bankiewicz at The American Society of Gene Therapy Meeting Holds Promise for Novel Therapeutic Approach to Treating Common Neurological Disease WASHINGTON, June 14, 1999 /PRNewswire/ -- Krys Bankiewicz, M.D., Ph.D., of the National Institutes of Health, in collaboration with Avigen, Inc. (Nasdaq: AVGN - news) and Lawrence Berkeley National Laboratory presented research results of studies in primates suggesting the potential for Avigen's gene therapy technology to treat Parkinson's disease. Parkinson's disease is a neurological disorder characterized by a decrease in spontaneous movements, gait difficulty, postural instability, rigidity and tremor, which result from a decrease in the availability of the neuro-transmitter dopamine in the brain. Speaking at The American Society of Gene Therapy Conference in Washington, DC, Dr. Bankiewicz announced that dopamine activity could be restored in a primate model of Parkinson's disease following treatment with Avigen's adeno associated virus (AAV) vector. ``Researchers in the field of gene therapy have encountered many obstacles in their attempt to develop an effective therapeutic approach to treating genetic disorders,'' commented Dr. Bankiewicz. ``Avigen's AAV based approach to treating Parkinson's disease may hold promise for the broader application of treating a variety of genetically based conditions,'' he said. Dr. Bankiewicz's findings represent an important advance in the potential development of gene therapy treatment for Parkinson's disease, a common and devastating neuro-degenerative disease affecting over one million people in the United States. The strategy behind gene therapy is to provide the patient with the genetic information needed in order to restore certain biological activities within the cell. The challenge to date has been to identify a mechanism by which genetic information can be successfully transferred to the appropriate cells to the body. Viruses have been identified as possible delivery agents; however, many viruses are harmful or even deadly and are effective only under certain carefully controlled conditions. As a result of its progress with its AAV vector system, Avigen researchers may have developed a potential solution to this challenge. ``We are enthusiastic about the possible application of Avigen's gene therapy technology to Parkinson's disease,'' said John Monahan, Ph.D., President and CEO of Avigen. ``If our research findings continue to exhibit the promise which they have to date, our AAV vector system may provide an attractive therapeutic alternative for certain genetically based diseases.'' <snip> SOURCE: Avigen, Inc. Copyright © 1999 PRNewswire. http://biz.yahoo.com/prnews/990614/dc_avigen__1.html -- Judith Richards, London, Ontario, Canada <[log in to unmask]> ^^^ \ / \ | / Today’s Research \\ | // ...Tomorrow’s Cure \ | / \|/ ```````