Since its inception in 1988, Regeneron Pharmaceuticals, Inc. (REGN) has operated as a research and development (R&D) company engaged in the development of drugs for the treatment of various diseases. Regeneron's goal is to become a fully integrated biopharmaceutical company by commercializing these drugs. The company has advanced a few of its pipeline drugs into clinical stage development. The leading drug programs in this regard are IL-1, for inflamatory disease, and VEGF, for cancer and eye diseases. Revenues consist of R&D collaboration payments from development partner Sanofi-Aventis and contract manufacturing payments from pharmaceutical giant Merck for a pediatric vaccine. Manufacturing agreement expired in October 2006. From 2007, revenue will mainly derive from collaboration with Sanofi-Aventis and Bayer and from technology transfers.

Regeneron is cururently based in Tarrytown, NY. In December 2006, the company signed a 15-year lease with BioMed Realty Trust, Inc. for a new corporate headquarters and research and development complex to be constructed adjacent to its current facility at the Landmark at Eastview in the Town of Greenburgh in Westchester County, New York. Regeneron also has the option to extend the lease for three additional 5-year periods. The new facilities will be constructed by BioMed Realty Trust over the next two years.

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