"Would it have a better track record for Sjogren's neuropathy than Rituximab though?"

Mat, obviously discuss this with your clinical team but as far as I can see Rituximab does not seem to be very effective Treatment of primary Sjogren syndrome with rituximab: a randomized trial. - PubMed - NCBI. There is a commentary on this clinical trial here Does Rituximab Help Patients With Primary Sjogren Syndrome? | Annals of Internal Medicine.