Data assessed from 17 clinical trials of anti-amyloid drugs found no ‘meaningful effect’ on cognitive decline Data assessed from 17 clinical trials of anti-amyloid drugs found no ‘meaningful effect’ on cognitive decline Drugs that have been hailed as a gamechanger for the treatment of Alzheimer’s disease make no noticeable difference to patients, according to an extensive review. The analysis of clinical trials in people with mild cognitive impairment or mild dementia found that the effects of