Sanofi Genzyme (also known as Genzyme Corporation) is a biotech company that specializes in rare diseases, rare blood disorders, multiple sclerosis, oncology, and immunology. It is engaged in the development of specialty care therapies to target a range of serious medical conditions. In addition, the company operates RegistryNXT, a web-based technology platform designed to collect patient clinical data related to the onset, progression, and treatment course of Gaucher, Fabry, MPS I, and Pompe diseases.