Since 2007, Regeneron and Sanofi have collaborated to help people with debilitating and complex conditions that are often difficult to diagnose and treat, using fully-human monoclonal antibodies. Regeneron is a leading science-based biopharmaceutical company based in Tarrytown, New York that discovers, invents, develops, manufactures, and commercializes medicines for the treatment of serious medical conditions. Sanofi Genzyme is the specialty care global business unit of Sanofi, focused on rare diseases, rare blood disorders, neurology, immunology and oncology. ONC.21.09.0020 9/21 © 2021 Regeneron Pharmaceuticals, Inc., and sanofi-aventis U.S. LLC. All rights reserved.