Cyclodextrins seem to be very beneficial and may very well be a key to treating Alzheimer on the one hand but they do have risks too, yes as all drugs do.
https://www.frontiersin.org/articles/10.3389/fncel.2017.00355/full
All drugs have risks, of course. However, I have seen first-hand the ravages of Alzheimer's, and unless the risks of the drug are profound, I would think that on balance it would be a risk worth taking.
A deeper question is whether, if someone is found early on to have the gene in question, can these same techniques be used to develop a prophylactic medication that would prevent Alzheimer's from developing in the first place.