Daiichi Sankyo
In January 2020, the company's market value rose above JPY 5 trillion after the U.S. Food and Drug Administration approval and release of Enhertu, an antibody-drug conjugate for cancer treatment. Daiichi Sankyo developed Enhertu in cooperation with AstraZeneca, which agreed in March 2019 to pay up to $6.9 billion to Daiichi Sankyo in exchange for a share of Enhertu's sales.