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Analysts, investors and scientists are eager for Biogen’s 2026 BIIB080 readout. Even if successful, executives warn that there are many more steps before the Alzheimer’s therapy could reach the market.

Despite the definitive failure of Novo Nordisk’s semaglutide in Alzheimer’s, biotech executives, analysts and other industry experts see potential in more testing of GLP-1s for the neurodegenerative disease, particularly in a combination approach.

After covering the Alzheimer’s space through every high and low, BioSpace’s Annalee Armstrong welcomes back Roche for the 2026 Alzheimer’s Renaissance.

Following the hard-won success of early anti-amyloid drugs, a new generation of Alzheimer’s modalities—from tau-targeting gene silencers to blood-brain barrier delivery platforms—is entering the pipeline to anchor future combination therapies.

Three years after the accelerated approval of its anti-amyloid Alzheimer’s therapy, Biogen—neck and neck in the market with Eli Lilly and its Kisunla offering—is focused on a near-term FDA decision for a subcutaneous induction dose of Leqembi, a presymptomatic readout in 2028 and a clutch of next-generation candidates.

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.

Experts unpack the implications of CBER Director Vinay Prasad’s claim that COVID vaccines have caused 10+ child deaths; the 2025 Clinical Trials on Alzheimer’s Disease conference continues following two disappointing readouts; and Novo Nordisk’s amycretin yields promising weight loss results.

At the AD/PD annual meeting, Eisai presented real-world data suggesting Leqembi’s long-term safety and efficacy in people homozygous for APOE4, who were identified in trials as being at higher risk of brain bleeds while on the treatment. Alzheon, meanwhile, added further detail to trial results of its candidate in patients with the same genetic profile.

Long-term data presented at the Alzheimer’s Association International Conference show Leqembi can help patients stay in the earlier stages of Alzheimer’s disease as compared to the condition’s natural progression.