EXHIBIT 10.1 First Amendment to the Multi-Project Collaboration Agreement dated May 13, 1997 This Amendment, dated September 29, 1997, is by and between the Procter & Gamble Company and its Affiliates ("P&G") and Regeneron Pharmaceuticals, Inc., and...Multi-Project Collaboration Agreement • November 14th, 1997 • Regeneron Pharmaceuticals Inc • Pharmaceutical preparations
