Eisai announces COFEPRIS approval of Leqembi (lecanemab) for early Alzheimer's disease in Mexico, marking the first treatment to reduce disease progression and cognitive decline by targeting Aβ protofibrils and plaques. Leqembi is also approved in the U.S., Japan, China, South Korea, Hong Kong, Israel, UAE, and Great Britain. The approval is based on Phase 3 Clarity AD trial data, with an estimated 1.3 million Alzheimer's patients in Mexico. The drug is a result of a collaboration between BioArctic and Eisai, with BioArctic responsible for commercialization in the Nordic region pending European approval.