http://biz.yahoo.com/prnews/980925/md_guilfor_1.html Company Press Release Data Presented on Two Guilford Pharmaceuticals Neuroscience Programs at Acute Neuronal Injury Conference Pre-Clinical Data Presented on PARP Inhibitors and FKBP-Neuroimmunophilin Ligands BALTIMORE, Sept. 25, 1998 /PRNewswire/ -- Guilford Pharmaceuticals (Nasdaq: GLFD - news) announced today that new data on two lead neuroscience programs were presented at the ``Acute Neuronal Injury: New Therapeutic Opportunities'' meeting sponsored by the Cambridge Healthtech Institute in Las Vegas. Dr. Craig R. Smith, President and CEO of Guilford, commented, ``We are extremely pleased to reveal what we consider to be exciting new data on two promising neuroscience programs. For the first time, Guilford presented data which suggest the promising clinical and commercial potential of PARP inhibition with our prototype compound, GPI 6150. In addition, Amgen presented new efficacy and pharmacokinetic data on the companies' lead FKBP-neuroimmunophilin ligand, ''NIL-A,`` which suggest significantly superior properties as compared to first generation prototype compounds.'' Neuroprotectant Program Poly (ADP-ribose) polymerase (PARP) is an enzyme found in the nucleus of cells. Stroke, or other conditions which result in diminished blood flow, or ischemia, cause DNA damage which in turn activates PARP. The over-activation of PARP during ischemic events causes a depletion of cellular energy which ultimately results in cell death. Scientists at Guilford and their academic collaborators have theorized that the inhibition of PARP may represent a novel mechanism to prevent degeneration-induced cell death. Accordingly, Guilford scientists have developed, and are studying, several series of potent small molecule PARP inhibitors as neuroprotective agents against stroke and other ischemic disorders including, myocardial ischemia, diabetes, septic shock, Parkinson's disease, Alzheimer's disease, head trauma and spinal cord injuries. During the conference, Dr. Jie Zhang, a senior scientist at Guilford, presented animal data suggesting the potential role of PARP inhibitors in treating cerebral vascular stroke and myocardial infarction. Dr. Zhang's data provide evidence that the activation of PARP plays a pivotal role in mediating ischemic injuries. In animal models of cerebral focal ischemia, Guilford's prototype PARP inhibitor, GPI 6150, reduced overall cerebral infarct damage by approximately 85%. In a separate experiment investigating the cardioprotective effects of GPI 6150 in a model of myocardial ischemia, or heart attack, a 47% reduction in myocardial infarct size was observed. Neurotrophic Program FKBP-neuroimmunophilin ligands are novel, orally-active, small molecule neurotrophic compounds that cross the blood-brain barrier and which have the potential to promote nerve regeneration and repair. Pre-clinical research by Guilford and Amgen scientists has demonstrated that FKBP-neuroimmunophilin compounds can protect certain dopamine neurons and stimulate regeneration of neurological pathways, suggesting that this class of compounds may have application in the treatment of a variety of neurodegenerative disorders including, Parkinson's disease, Alzheimer's disease, stroke, multiple sclerosis and peripheral neuropathies. In August 1997, Guilford entered into a major collaboration with Amgen Inc. [Nasdaq:AMGN - news] in which Amgen was granted the rights to develop, manufacture and sell products based upon Guilford's proprietary FKBP-neuroimmunophilins ligands. Over the past several months Guilford and Amgen have made considerable progress optimizing their lead second generation FKBP-neuroimmunophilin compound, NIL-A, which is being developed initially for the treatment of Parkinson's disease. Data presented by Amgen support the potential use of the FKBP-neuroimmunophilin ligands as a disease modifying agent in the treatment of Parkinson's disease. Efficacy and pharmacokinetic studies of NIL-A have demonstrated that it possesses approximately 50% oral bioavailability and has 25 times greater potency than GPI 1046, Guilford's first generation, prototype FKBP-neuroimmunophilin ligand. Moreover, pharmacokinetic studies of NIL-A in small animals and primates evidenced superior half life and absorption profiles versus GPI 1046. These new data demonstrate a favorable pre-clinical profile of NIL-A, and provide additional support for the selection of NIL-A as the companies' lead FKBP-neuroimmunophilin clinical compound. SOURCE: Guilford Pharmaceuticals, Inc. Copyright © 1998 PRNewswire. -- Judith Richards, London, Ontario, Canada <[log in to unmask]> ^^^ \ / \ | / Today’s Research \\ | // ...Tomorrow’s Cure \ | / \|/ ```````