Not sure if there are many other examples, but Ron Davis mentions one potentially successful case (or could be spontaneous remission) of someone recovering after avoiding crashes for a year:
https://twitter.com/user/status/1811036135885254741
"One researcher had ME and she didn't have a crash and after a year she got better."
https://twitter.com/user/status/1811036135885254741
"One researcher had ME and she didn't have a crash and after a year she got better."