Welcome to the Eisai Investigator Initiated Studies (IIS)/Oncology Portal

Eisai's Investigator Initiated Studies (IIS) Program provides research grants in the form of clinical supplies and/or funding to eligible healthcare or research professional applicants to support scientifically compelling and innovative research consistent with Eisai’s therapeutic or clinical interests and to address legitimate medical or scientific questions impacting/relating to the use of Eisai marketed products or investigational compounds.

Eisai is currently accepting applications for Investigator Initiated Studies (IIS). All IIS application requests and proposals must be in compliance with all applicable governmental regulations and Eisai's policies and procedures.

If you have any questions regarding the preparation of the application, you may contact the Medical Science Liaison (MSL) in your territory or the Eisai Grants Helpdesk (please allow 1 business day for return reply).

Global Eisai Grants Helpdesk:
Email: eisai_iisgrants@eisai.com
Toll free: USA: +1 866-434-8176

EMEA Medical Information (EMEA region) contact details:
Email: eumedinfo@eisai.net
Tel: +44 (0)845 676 1400 or +44 (0)208 600 1400

If you are experiencing technical difficulties, please contact the Envision Pharma Helpdesk:
Email: helpdesk@envisionpharmasupport.com
Toll free: USA: +1 860 266 4944
UK: +44 (0) 1403 322 095

Please Note: This site is not intended for Adverse Event reporting. To report Suspected Adverse Events, contact Eisai at:
Email: ESI_Safety@eisai.com