Astellas is a global pharmaceutical company based in Japan, formed in 2005 through the merger of Yamanouchi Pharmaceutical and Seiko Pharmaceutical. The company focuses on developing innovative medicines in various therapeutic areas, including oncology, urology, and immunology. With a commitment to improving patient outcomes, Astellas invests heavily in research and development. The company operates in over 70 countries and aims to address unmet medical needs through its diverse portfolio of products and ongoing clinical trials.