50 active RA pts RCT Rx w. either low dose IL-2(n=26), IL-2+TCZ (9) or control (15). All improved clinically by DAS28-ESR, but IL-2 Rx pts had signif proliferation of Tregs, w. decr inTh1, Th2, & Th17 cells. TREG #s correlated w/ ESR drop (r=0.54) https://t.co/1tF63FuXzx https://t.co/M5TWsa6zI4