Astellas ISR Portal - Login
Investigator Sponsored Research Portal
We are now accepting new ISR proposals from the United States of America, Japan and the Asia Oceania region.
• For USA: Proposals for enzalutamide and gilteritinib only may be submitted using this portal. • For Japan: please go to
• For Asia Oceania: Proposals for febuxostat, enzalutamide, tacrolimus extended release and mirabegron only may be submitted using this portal.
Should you have any questions, please reach out to the Medical Affairs contact in your Region or by contacting
or if US-based, call 1 (844) 827-9913.
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