FDA approves new Alzheimer's treatment, donanemab from Eli Lilly

The Food and Drug Administration approved a new Alzheimer's treatment called donanemab on Tuesday, clearing the way for the third addition to a new class of drugs aimed at slowing the brain's decline in patients facing the early stages of the disease. 

Branded as Kisunla by drugmaker Eli Lilly, donanemab's approval follows years of setbacks and delays in getting the experimental Alzheimer's treatment to market, despite promising clinical trial results.

Eli Lilly says the drug will be available within weeks following the approval.