Alzheimer’s disease
In another blow to Prothena’s neurodegenerative disease portfolio, anti-amyloid candidate PRX012 has run into the same problem that larger peers Biogen and Eli Lilly have battled: high rates of swelling in the brain.
Arguably the FDA’s most anticipated decision this month is for a subcutaneous induction formulation of Biogen and Eisai’s Alzheimer’s drug Leqembi, which, according to Eisai, could “help reduce the burden on healthcare professionals and patients.”
The FDA greenlit multiple new drugs this month and issued some notable label expansions, including for Eli Lilly’s Kisunla. Meanwhile, the regulator turned away a cell therapy for Duchenne muscular dystrophy and a gene therapy for the rare disease Sanfilippo syndrome.
Rumors of Biogen’s disagreements with Eisai have been greatly exaggerated, CEO Chris Viehbacher said during a second quarter earnings call. The partnered Alzheimer’s drug Leqembi saw sales climb 20% for the period.
Long-term extension data presented at the Alzheimer’s Association International Conference showed amyloid plaque reaccumulation remained slow at up to 2.5 years of follow-up in patients who were taken off of treatment with Eli Lilly’s anti-amyloid antibody.
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.
Sarepta’s Elevidys is back on the market for ambulatory patients with Duchenne muscular dystrophy, Health Secretary Robert F. Kennedy Jr. reportedly plans to dissolve the U.S. Preventive Services Task Force and “fix” the vaccine injury compensation program, Merck, AstraZeneca and more report Q2 earnings, Novo names a new leader and Roche’s trontinemab impresses at AAIC25.
In a Phase Ib/IIa trial, 91% of patients receiving the highest dose of trontinemab were amyloid negative after seven months of treatment, representing what B. Riley Securities called a “paradigm shift” to first-generation FDA-approved antibodies.
Acknowledging the limits of disease-modifying drugs like Leqembi and Kisunla, companies like Bristol Myers Squibb, Acadia, Otsuka and Lundbeck are renewing a decades-old search for symptomatic treatments, including in high-profile drugs like Cobenfy.
These five upcoming data drops could usher in more effective and convenient therapies for Alzheimer’s disease and open up novel pathways of action to treat the memory-robbing illness.
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