KNTV NBC Nightly News With Lester Holt June 4, 2024 23:15:00
First-of-its-kind drug. it offers real hope for slowing progression of the disease. here is kate snow. >> reporter: it's the first time a drug meant to slow the progression of alzheimer's disease has ever been granted full regulatory approval. in a clinical trial involving about 1800 patients in the early stages of alzheimer's, the drug leqembi slowed cognitive decline by 27% over an 18-month period, compared to people who took a placebo. >> i really cannot overstate how important today is. this is really a game changer for our field. >> reporter: the drug targets a type of protein in the brai...