The following submission statement was provided by /u/cyberentomology:

Some promising new developments on neuromodulation, hacking the nervous system for treating RA and other autoimmune disorders. This is far enough along that it should see larger scale clinical research this year.

Please reply to OP's comment here: https://old.reddit.com/r/Futurology/comments/10a1yar/a_new_treatment_for_arthritis_vagusnerve/j41j5ds/