Disclosure of Personal Information

If you would like to request the disclosure of personal information, please fill out the required items of the “Request for Disclosure of Personal Information,” attach the designated identity confirmation document, and post to the following address. Eisai will respond upon confirming this is the demand of the individual concerned. Any expenses such as postage fees will be borne by the individual.

If you have any questions, please contact us using the Contact Form.


  • 1.

    Documents for Identity Confirmation

    Please attach one of the following (a-c). 

    a. Passport (1 copy)

    b. Driver’s License (1 copy)

    c. Any two out of Health Insurance Card, Pension Book, or Certificate of Tax Payment (or Certificate of Tax Exemption) (1 copy each)

    * In order to take a record of contact from an individual, we cannot return the documents confirming the individual’s identity, however we will store them securely.

  • 2.

    Address to Send Documentation 


    4-6-10 Koishikawa, Bunkyo-ku, Tokyo

    Eisai Co., Ltd.

    Person in Charge of Supervising Protection of Personal Information

Request for Disclosure of Personal Information