subtypes distinguishes our lead compounds from existing benzodiazepine products that act on all four subtypes, and from the newer selective modulators that act on one site of the GABA complex. We believe that our identified targets may have the potential to provide anxiolytic effect without sedation.

D-amino acid oxidase inhibitors are believed to offer therapeutic potential for treatment of cognitive disorders, schizophrenia and pain. Our discovery program has identified selective leads that may be applicable for treating different CNS disorders and have been shown to be potent and efficacious in preclinical models.

We are also conducting a discovery program targeting the m1 receptor. Selective m1 agonists are thought to hold promise as a new mechanism for treatment of psychosis, cognition and pain.

Our goal from these preclinical discovery programs is to yield new Investigational New Drug (IND) applications each year, creating internal, sustained product flow.

1 National Institute of Mental Health web site http://www.nimh.nih.gov/publicat/depression.cfm, accessed February 8, 2007

2 Paul E. Greenberg et al., “The Economic Burden of Depression in the United States: How Did it Change Between 1990 and 2000?”
J Clin Psychiatry 2003;64:1465-1475