Alzheimer’s disease
In the midst of regulatory and political upheaval, biopharma’s R&D engine kept running, churning out highs and lows in equal parts. Here are some of this year’s most glorious clinical trial victories.
Every year in biopharma brings its share of grueling defeats, and 2025 was no different, especially for companies targeting neurological diseases. Some failures split up partners, and one particularly egregious case even led to the demise of an entire company.
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Days after Johnson & Johnson’s posdinemab failed to slow clinical decline in patients with Alzheimer’s disease, Eisai Chief Clinical Officer Lynn Kramer expressed unwavering conviction in his company’s own anti-tau asset, while others suggest the Alzheimer’s field is heading in a completely different direction.
Analysts had noted “unease” from investors regarding the state of the Phase III ADEPT-2 trial, with BMS at one point telling Leerink Partners that the reopening of enrollment would be a “significant development.”
After covering the Alzheimer’s space through every high and low, BioSpace’s Annalee Armstrong welcomes back Roche for the 2026 Alzheimer’s Renaissance.
Trontinemab lowered amyloid levels below the threshold of positivity in 92% of treated patients.
Johnson & Johnson will discontinue the Phase II Auτonomy study of posdinemab after a scheduled review found the anti-tau antibody failed to slow clinical decline in patients with early Alzheimer’s disease.
Analysts agree that the failure of Novo Nordisk’s semaglutide to reduce Alzheimer’s disease progression removes a “modest” or “perceived” overhang on Biogen and the anti-amyloid antibody class in general, clearing the way for increased uptake of Leqembi and Eli Lilly’s Kisunla.
“We felt we had a responsibility to explore semaglutide’s potential, despite a low likelihood of success,” Martin Holst Lange, Novo’s R&D chief, said on Monday.
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