Failure Of Roche’s Nine-Year Alzheimer’s Prevention Study Disappointing, But No Surprise

Crenezumab Fails Again

The ambitious prevention study in people with a nearly 100% chance of developing Alzheimer’s disease has failed, and attention will now switch to trial readouts for the next generation of beta-amyloid targeting candidates.

Antioquia, Colombia
The nine year study was carried out in the Antioquia region of Colombia, where a genetic mutation makes some people almost certain to develop Alzheimer’s disease.. • Source: Shutterstock

Roche and partner AC Immune’s beta-amyloid targeting drug crenezumab has failed to prevent Alzheimer’s disease in people otherwise almost certain to develop the condition because of a rare genetic mutation.

The results announced on 16 June mark a disappointing but unsurprising end to an ambitious nine-year long study conducted in Colombia in people with the rare inherited form of the

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