We’ve invested our research dollars in neurology and oncology Research & Development (R&D) for decades in our quest to tackle some of the hardest-to-treat neurological conditions and cancers. We take a disciplined, human biology-based approach to research and develop preventative and curative treatments that will hopefully transform the lives of people impacted by Alzheimers’ and other neurodegenerative diseases, as well as those living with cancer. 

We’re a global R&D organization with two Discovery Centers in the U.S.: 

  • Cambridge, MA draws upon Eisai’s cutting-edge strengths in human genetics, data sciences and precision chemistry to accelerate discovery of breakthrough immunodementia precision therapeutics. 
  •  Exton, PA develops precision oncology therapies by combining biologics expertise, our unique Antibody-Drug Conjugate (ADC) technology, proprietary payloads and bispecific antibodies.  
Follow the science by working across the human biology spectrum to
efficiently deliver breakthrough, disease-modifying therapies.


Eisai's efforts are centered on dementia prevention and delay of progression via next-generation Alzheimer's disease and other neurodegenerative disease compounds now under development. We're also pursuing a new treatment for hypersomnia, as well as expanded indications and new formulations for existing products. Our current neurology R&D initiatives include:
  • Early and Minimally Invasive Diagnostics
  • Novel Neuro-Transmission Pathways 
  • Proteinopathy
  • Neuro Inflammation and Immuno-Genetics 
  • Synapse Micro-Environment
  • Neuronal Regeneration


We are currently exploring more than one dozen molecules, formulations and combinations in clinical trials. Our current oncology R&D initiatives include: 
  • Tumor Micro-Environment  
  • Cell Differentiation and Cancer Stemness 
  • Immunosuppressive Myeloid Lineage and its impact on tumorgenesis 
  • Anti-angiogenesis as an important treatment for cancer  
  • Driver Gene Mutation and Aberrant Splicing in Cancer cells 
The brain is thought of as the last frontier in medical research, and Eisai is at the forefront of creating innovative medications in this area. Everybody has a chance to become a true innovator at Eisai and ultimately work toward helping the growing number of patients suffering from neurodegenerative diseases across the world.
Quotation Mark
Teiji Kimura, Ph.D.
Academia & Industry Alliance Officer
Deep Human Biology Learning Office


See what Eisai can do for your career.


We’re dedicated to empowering our employees to grow and excel. This focus on “People Excellence” is central to our human health care mission.


​​​​​​​At Eisai, you’ll enjoy a Compensation & Benefits package that features exceptional incentives, benefits, wellness programs and work-life flexibility.


Year-long, we participate in innovation sessions, attend walks with patients and advocacy organizations, celebrate successes, and of course, work together and collaborate.    
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Looking for a team environment where you’ll be challenged to break through and make a real difference?
Join our human health care mission.