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The FDA just approved a new treatment for Alzheimer's disease from Eisai and Biogen. In a large study, the drug slowed the rate of cognitive decline in patients by 27%. Alzheimer's disease affects roughly 6.5 million Americans and has no cure.The US Food and Drug Administration approved a new drug for Alzheimer's disease — a key step forward in treating the disease.
Lecanemab, developed by the Cambridge-based biotech company Biogen and the Japanese pharmaceutical company...