The US Food and Drug Administration’s conversion from accelerated to regular approval of Eisai Co., Ltd. and Biogen, Inc.’s Alzheimer’s drug Leqembi (lecanemab-irmb) comes with amped up safety information in the product label, including a new boxed warning on amyloid-related imaging abnormalities and stronger recommendations for pretreatment genetic testing.
Eisai/Biogen’s Leqembi: US FDA’s Full Approval Comes With A Boxed Warning On ARIA Risk
Labeling for the first anti-amyloid to receive traditional approval in Alzheimer’s disease states that testing for ApoE ε4 status ‘should be performed’ prior to treatment; updated labeling also includes stronger cautionary language on use in patients with risk factors for cerebral hemorrhage.

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