** Shares of Eli Lilly and Co LLY.N fall 1.9% to $454.21
** Eisai 4523.T and Biogen's BIIB.O Alzheimer's drug
Leqembi won a coveted standard approval nod from the U.S. Food
and Drug Administration on Thursday, but with the health
regulator's strongest "boxed" safety warning
** The warning flagged the risk of potentially dangerous
brain swelling for Alzheimer's drugs in the same class
** The safety warning will also apply to LLY's donanemab, an
experimental Alzheimer's drug that was shown to slow cognitive
decline by 35% in a late-stage trial
** Full results from LLY's late-stage study are expected
this month
** The U.S. health regulator in January rejected accelerated
approval for LLY's donanemab because the co had not submitted
enough trial data from patients who were treated for at least a
year
** LLY stock up ~24% YTD
(Reporting by Sriparna Roy in Bengaluru)
((Sriparna.Roy@thomsonreuters.com;))