The U.S. Food and Drug Administration on Friday approved Eisai Co Ltd and Biogen Inc’s Alzheimer’s drug lecanemab for the treatment of early forms of the fatal, brain-wasting disease. Like their earlier Alzheimer’s drug Aduhelm, lecanemab, to be sold under the brand name Leqembi, belongs to a class of treatments that aim to slow disease progression by removing sticky clumps of the toxic protein beta amyloid from the brain.
