Eisai dials back forecasts for Alzheimer's drug Leqembi
Longer-term, Eisai and Biogen are hoping for further evidence to support Leqembi from the phase 3 AHEAD 3-45 trial, which started in 2020 and is underway in Japan, the US, and Europe and is enrolling people ages 55-80 who have not been diagnosed with Alzheimer's or another form of dementia. Results are due in 2028.