Arthur Simen MD, PhD, is the Executive Medical Director and Head of Neurodegenerative Disorders within Takeda’s Clinical Science group. He is a physician and neuroscientist and leads a group of physicians and scientists dedicated to clinical development for neurodegenerative disorders. He also co-leads Takeda’s Neurodegenerative Disorders Unit, a cross-functional team with membership across the organization dedicated to coordinating Takeda’s drug development efforts from discovery to clinical development in neurodegenerative disorders.