FRAMINGHAM, Mass.--(BUSINESS WIRE)--GTC Biotherapeutics, Inc. (“GTC”, Nasdaq: GTCB) announced today that Geoffrey Cox, Ph.D., GTC’s Chairman and CEO, is scheduled to present on Wednesday, October 10, 2007 at 10:45 a.m. Pacific Time during the BIO InvestorForum 2007. The conference is being held at the Palace Hotel in San Francisco, California from October 9 - 11, 2007. The presentation will be webcast live and can be accessed by logging onto www.gtc-bio.com. The replay can be accessed from this same website and will be available within 24 hours of the presentation.