Astellas Pharma US Inc

American company of the Japanese group Astellas Pharma, with its head office at Northbrook in Illinois, the group's base for the United States. Sells its prescription medicines in the American market in oncology, urology, transplantation, women's health and ophthalmology, including enzalutamide and other specialty products, runs clinical development and trials with American hospitals and investigators, and handles regulatory affairs with the Food and Drug Administration, medical affairs and pharmacovigilance for the market.