Millennium Pharmaceuticals is a biopharmaceutical company that engages in the research, development, and commercialization of medicines for the treatment of cancer in the United States and internationally. It develops and markets VELCADE for injection, a cancer therapy for the treatment of patients with multiple myeloma and relapsed mantle cell lymphoma. The company was founded in 1993 and is headquartered in Cambridge, Massachusetts with facilities in San Diego, San Francisco, Tsukuba, and Osaka. As of May 13, 2008, Millennium Pharmaceuticals, Inc. operates as a subsidiary of Takeda Pharmaceutical Co. Ltd.