Alzheimer’s disease
New mid-stage data from Biogen’s Ionis-partnered therapy diranersen served to both validate the tau hypothesis in Alzheimer’s disease and raise questions that could soon be elucidated by anti-tau candidates from Denali Therapeutics, Eisai and Eli Lilly.
Biogen’s new data, presented at the Alzheimer’s Association International Conference, supports a tau-focused approach to the intractable neurodegenerative disease; psychedelics are back in the news with more positive data from Compass Pathways and final guidance from the FDA; and the ATTR-CM space got a major shakeup with the late-stage failure of AstraZeneca and Ionis’ antisense therapeutic.
Eli Lilly’s anti-amyloid Alzheimer’s drug is designed to be stopped after patients drop below a certain amyloid level in the brain. However, at the Alzheimer’s Association International Conference on Wednesday, Lilly revealed it is studying the potential of maintenance therapy for patients who need it.
Biogen touted an “unprecedented” drop in tau in a Phase 2 trial, backing the company’s decision to take diranersen to Phase 3 despite a missed primary endpoint and seemingly supporting the anti-tau approach.
Leqembi Iqlik can now be given at home throughout the entire course of treatment, setting it apart from Eli Lilly’s Kisunla, the only other anti-amyloid Alzheimer’s disease therapy on the market.
The lineup at the Alzheimer’s Association International Conference will provide critical insight into where the industry is headed with regard to targets being explored to vanquish the elusive neurodegenerative disease.
Many of the FDA’s decisions this quarter involve applications that have previously been delayed, declined or outright rejected, including one for an mRNA vaccine that became the center of controversy earlier this year.
The mid-stage disappointment in Alzheimer’s disease delivers another blow to Neuphoria Therapeutics, which in November last year was forced to launch a strategic business review after a Phase 3 trial in social anxiety disorder failed.
The star of the licensing agreement, a small-molecule gamma-secretase modulator, will help buff Eli Lilly’s position in Alzheimer’s disease, currently headlined by its anti-amyloid antibody Kisunla.
If Biogen has shown that tau can impact cognition, Denali’s technology—validated with an FDA approval in Hunter syndrome—could ensure the medicine gets where it needs to be for the greatest therapeutic impact, analysts said.
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