This does sound promising. Higher doses in certain drugs do seem to be less detrimental than previously thought we keep hearing.
Rebif, the drug I was prescribed, is IIRC, a higher dose of the same drug in Beta Seron, one of the ABC-R drugs for MS (avonex, beta seron, copaxone, and rebif). The neuros when I was diagnosed 5 years ago pushed me towards Beta Seron, but honestly the side effects scared the beejezus out of me. When Rebif was approved for use in the USA a couple years later, I read up on it, and while it had many of the same yucky side effects, it sounded much better for what I was experiencing.
I was a little leery of the side effects from Beta...but ended up not having them, thank goodness.
By the way, ABC-R in it's latest form (online anyway) has morphed into CRAB drugs, LOL.
Don't know if that's a good acronym of not, LOL!