Weight-Loss Drugs May Reduce Buildup of Alzheimer's Proteins, Major Review Finds

A review of 30 preclinical studies and two small clinical trials suggests GLP-1 drugs may help reduce Alzheimer’s-related amyloid-beta and tau buildup.

Most lab and animal studies found lower levels of these brain proteins with drugs such as semaglutide, liraglutide, exenatide and dulaglutide.

Human trial evidence was limited and mixed, so it is still unclear whether these medicines can prevent dementia in people.

The findings add to early signs that diabetes and weight-loss drugs could have brain-protective effects, but they are not proof of benefit in patients.