Why have so many Alzheimer’s drug trials failed?

No new drugs to treat Alzheimer’s disease have been approved since 2003. It’s not for lack of trying: Hundreds of clinical trials have tested potential new therapies. The numbers are startling: Alzheimer’s drug candidates have a 99.6 percent failure rate, according to research published in Alzheimer’s Research & Therapy. In contrast, cancer drug trials have an […]


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