"The manufacturer's claims here are that the drug treats Alzheimer's. " I know, it was just a bit of an aside. The reason they presumably claim this is because

"The manufacturer's claims here are that the drug treats Alzheimer's. " I know, it was just a bit of an aside. The reason they presumably claim this is because if they just claimed it cleared amyloid plaques, that wouldn't be approved by the FDA as it's not treating a condition?