Sumitomo Dainippon Pharma America (SDPA) supports certain affiliates of Sumitomo Dainippon Pharma Group by providing professional shared services expertise to achieve greater efficiencies and enable discovery, development and commercialization of innovative treatments to help patients. Headquartered in Marlborough, MA, U.S., SDPA is a wholly-owned subsidiary of Sumitomo Dainippon Pharma Co., Ltd., a global pharmaceutical company based in Japan.