For the first time, scientists say, they have evidence that using a biologic drug to remove sticky beta amyloid plaques from the brains of people destined to develop Alzheimer’s dementia can delay the disease.

An early Alzheimer's treatment that removes amyloid plaques from the brain many years before symptoms arise may help delay the onset of dementia, a clinical trial suggests.

A new study has found that an experimental drug appears to reduce the risk of Alzheimer' s-related dementia in people destined to develop the disease in their 30s, 40s, or 50s. The findings suggest -- for the first time in a clinical trial -- that early treatment to remove amyloid plaques from the brain many years before symptoms arise can delay the onset of Alzheimer's dementia.