Biogen (BIIB) , due to report second-quarter 2024 results on Aug 1, suffered a setback recently. Biogen and its Japanese partner Eisai on Friday announced that the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency has given a negative opinion regarding marketing approval for their anti-amyloid beta therapy, Leqembi (lecanemab) for early Alzheimer’s disease in Europe.  The CHMP’s negative opinion was reportedly due to a brain swelling side effect called amyloid-related im ...