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Alzheimer's drug proves effective in slowing symptoms: Eisai

September 28, 2022, 8:34 pm

<p style="text-align: left;">Photo shows Alzheimer's drug, lecanemab, under development by Eisai Co. and Biogen Inc. (Photo courtesy of Eisai Co.) <em>(Kyodo)</em></p>

Photo shows Alzheimer's drug, lecanemab, under development by Eisai Co. and Biogen Inc. (Photo courtesy of Eisai Co.) (Kyodo)

TOKYO – Japanese drug maker Eisai Co. said Wednesday its Alzheimer's disease drug under development with US firm Biogen Inc. has proved to be effective in slowing aggravation of symptoms in a clinical trial.

Eisai is aiming to win government approval for the drug, lecanemab, in 2023.

In the clinical trial, the drug curbed progress of symptoms such as worsening memory and impairment in judgment by 27 percent compared with a placebo, Eisai said.

The trial was conducted on about 1,800 patients with early symptoms in Japan, the United States, Europe and China.

The announcement comes after a panel at Japan's health ministry refused to approve aducanumab, another Alzheimer's disease drug jointly developed by Eisai and Biogen, in December last year.

Lecanemab removes a type of protein called amyloid beta, which accumulates inside the brain and destroys nerve cells, according to Eisai. (Kyodo)


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