MELVILLE, N.Y.--(BUSINESS WIRE)--OSI Pharmaceuticals, Inc. (Nasdaq: OSIP) provided an informational update on data from its two preclinical development compounds, PSN821 and PSN602. This information was presented at the annual meeting of the American Diabetes Association in San Francisco, CA. Preclinical data on PSN821, a novel, orally available agonist of the G-protein coupled receptor GPR119, being developed for the treatment of type 2 diabetes and obesity, were presented in an oral presentation. Also presented were preclinical data on PSN602, an oral dual serotonin and norepinephrine reuptake inhibitor and 5-HT1A agonist, being developed for the treatment of obesity. Both compounds are due to enter Phase I clinical trials in 2008.