I don't believe any disease modifying interventions exist which would suggest no, from a purely medical patient perspective at least. There are some candidates

I don't believe any disease modifying interventions exist which would suggest no, from a purely medical patient perspective at least. There are some candidates advertised as promising but I'm not sure how much stock I have in this. This isn't my area of expertise but disease modifying therapies for neurodegenerative diseases have been touted as being "around the corner" since I was a first year medical student.