Analysis from FVSG identified 36pts with anti-rituximab antibodies In AAV, lookout for this in pts who are MPO+ & w/higher CD19 at 6 mos. Worse relapse free survival in both AAV & CRYO! @TerrierBen can you share the prevalence of these abs? #ACR25 @RheumNow #ACRBest abstr#1604 https://t.co/Nyx6JxbvUk