IgG4-RD tx: GCs are mainstay tx starting at 30-40mg/d tapered gradually but 30% of pts will have recurrences Potential therapeutic targets to ⬇GC toxicity ✏B cell/plasmablasts (promising) ✏T cells (anecdotal) @RheumNow #ACR20 https://t.co/X2NI3vFUgl