Lexicon Initiates Phase 2a Trial of LX6171 Drug Candidate for Cognitive...(ll be set based on evaluation from the f...),Health

Date:12/5/2007

ll be set based on evaluation from the first stage pharmacokinetic study using the new formulation. The second stage will evaluate the safety and tolerability of LX6171 oral suspension in subjects exhibiting AAMI and will measure the cognitive effects of LX6171 in these subjects using the Cognitive Drug Research battery, along with other psychometric instruments. The study is being conducted in Europe, with initial results expected by the end of 2008.

About LX6171

LX6171 is an orally-bioavailable small molecule developed by Lexicon scientists to inhibit a membrane protein expressed exclusively in the central nervous system and found at synaptic vesicles and presynaptic membranes of glutamatergic neurons. The protein targeted by LX6171 was identified through Lexicon's large-scale gene knockout program, the Genome5000(TM). Knockout mice lacking this protein showed improved learning and memory compared with controls. In preclinical studies, administration of LX6171 resulted in improved performance in tests of learning and memory in mice. In Phase 1 clinical trials, LX6171 was generally well tolerated at all dose levels and showed good systemic exposure.

About Lexicon

Lexicon is a biopharmaceutical company focused on the discovery and development of breakthrough treatments for human disease. Lexicon currently has clinical programs underway for such areas of major unmet medical need as irritable bowel syndrome, cognitive disorders, and rheumatoid arthritis. The company has used its proprietary gene knockout technology to discover more than 100 promising drug targets and create an extensive pipeline of clinical and preclinical programs in the therapeutic areas of diabetes and obesity, cardiovascular disease, psychiatric and neurological disorders, cancer, immune system disorders and ophthalmic disease. To advance the development and commercialization of its programs, Lexicon is working both independently and through collaborators including Bris
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SOURCE Lexicon Pharmaceuticals, Inc. Copyright©2007 PR Newswire. All rights reserved

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