Regeneron Announces Presentation Time Change at the 2011 Deutsche Bank BioFEST

TARRYTOWN, N.Y., Dec. 1, 2011 /PRNewswire/ -- Regeneron Pharmaceuticals, Inc. (Nasdaq:REGN) today announced a time change for the Company's presentation at the 2011 Deutsche Bank BioFEST scheduled forMonday, December 5, 2011.  The presentation is scheduled for1:05 p.m. Eastern Time.  The session may be accessed through the Company's web site,www.regeneron.com, on the Investor Relations page.  An archived version of the presentation will be available after the live webcast throughJanuary 4, 2012.

About Regeneron PharmaceuticalsRegeneron is a fully integrated biopharmaceutical company that discovers, invents, develops, manufactures, and commercializes medicines for the treatment of serious medical conditions.  Regeneron markets two products, ARCALYST®(rilonacept) Injection For Subcutaneous Use and EYLEA™ (aflibercept) Injection.  Regeneron also has completed several Phase 3 studies and is conducting an additional Phase 3 clinical trial for the product candidate ZALTRAP®(aflibercept) concentrate for Intravenous Infusion.  Additional therapeutic candidates developed from proprietary Regeneron technologies for creating fully human monoclonal antibodies are in earlier stage development programs in rheumatoid arthritis and other inflammatory conditions, pain, cholesterol reduction, allergic and immune conditions, and cancer.  Additional information about Regeneron and recent news releases are available on the Regeneron web site atwww.regeneron.com.