TOKYO -- With the U.S. regulators formally approving Alzheimer's disease treatment lecanemab, Japanese pharmaceutical company Eisai and American partner Biogen now turn to the challenge of taking the treatment mainstream.
Limited testing capacity could prove challenge in Japan

Lecanemab, branded as Leqembi, is expected to slow the progress of Alzheimer's disease by about seven months. (Photo courtesy of Eisai)
TOKYO -- With the U.S. regulators formally approving Alzheimer's disease treatment lecanemab, Japanese pharmaceutical company Eisai and American partner Biogen now turn to the challenge of taking the treatment mainstream.