Daiichi Sankyo Co., Ltd. engages in the research, development, manufacture, and sale of pharmaceuticals. Its products include drugs for the field of oncology such as Trastuzumab deruxtecan, Anti-HER3-ADC, Quizartinib, Milademetan, Valemetostat, Pexidartinib, Edoxaban, Prasugel, and Microgabalin. The company was founded on September 28, 2005 and is headquartered in Tokyo, Japan.