Eisai Co., Ltd. is a prominent Japanese pharmaceutical company, headquartered in Tokyo, Japan. Established in 1941, it has grown to employ around 10,000 individuals globally, with a significant focus on research and development, housing approximately 1,500 researchers[2]. Eisai is publicly traded on the Tokyo Stock Exchange and is included in major indices such as the Topix 100 and Nikkei 225[2]. ## Key Developments and Products Eisai has made significant strides in the pharmaceutical industry, particularly known for its contributions to neurological and oncology treatments. Some of its notable products include: - **Aricept (donepezil)**: Approved by the FDA in 1996 for Alzheimer's disease, it has historically accounted for a substantial portion of Eisai's revenue[2]. - **Leqembi (lecanemab)**: This drug received accelerated FDA approval in January 2023 for Alzheimer's treatment and transitioned to traditional approval later that year[2]. - **Aciphex (rabeprazole)**: Another key product, approved in 1999 for gastroesophageal reflux disease[2]. ## Recent Challenges In June 2023, Eisai faced a ransomware attack that disrupted some of its logistical systems, highlighting vulnerabilities in cybersecurity within the pharmaceutical sector[2]. ## Global Presence Eisai operates not only in Japan but also has a significant presence in North America, Europe, and Asia-Pacific regions. Its American subsidiary, Eisai Inc., is based in Nutley, New Jersey[2]. The company maintains several research and development sites across various countries, including the United States and the United Kingdom[3]. ## Commitment to Healthcare Eisai emphasizes its commitment to "human health care," striving to improve access to medicines globally, particularly in developing nations. This approach reflects its broader mission to prioritize patient needs and enhance healthcare outcomes worldwide[1][3]. Citations: [1] https://www.eisai.com [2] https://en.wikipedia.org/wiki/Eisai_(company) [3] https://www.eisai.eu [4] https://www.eisaikorea.com [5] https://kr.linkedin.com/company/eisai-emea/life [6] https://kr.linkedin.com/company/eisai/