DISEASE AREAS

As a human health care company, we don’t base R&D decisions on the size of a potential market. Instead, we focus on areas of unmet medical need.



Neurology

WE’RE TACKLING SOME OF THE HARDEST-TO-TREAT NEUROLOGICAL CONDITIONS

Including Alzheimer’s disease and other forms of dementia, insomnia, narcolepsy, hypersomnia and more. find out how we’re breaking through

Disease Areas

WE’RE HARNESSING THE BODY’S IMMUNE SYSTEM TO HELP FIGHT CANCER

Eisai scientists are working to advance immuno-oncology so that it can benefit more patients and address more types of cancers. discover what’s next in Oncology