FRAMINGHAM, Mass.--(BUSINESS WIRE)--GTC Biotherapeutics, Inc. (NASDAQ:GTCB) (“GTC”) announced today that its financial results for the first quarter 2007 will be released on Thursday, May 3, 2007 before the Nasdaq market opens. Geoffrey F. Cox, Ph.D., Chairman of the Board, Chief Executive Officer and President, will lead the call on May 3 starting at 10:00 a.m. Eastern Time. You may access the live internet broadcast or the subsequent archived recording, on GTC’s website at http://www.gtc-bio.com or as follows: