We have drugs that remove amyloid-B, they didn't have any effect in clinical trials. (Despite one passing FDA approval) The problem is it was given to people w

We have drugs that remove amyloid-B, they didn't have any effect in clinical trials. (Despite one passing FDA approval) The problem is it was given to people who already had Alzheimer's. And I doubt they'll ever get permission from an IRB to run the study on a patient who are just expected to maybe develop Alzheimer's.