Study of 75 adult Stills pts looked at flare biomarkers (25 not on TCZ; 6 on TCZ). AOSD flares , ESR/CRP/Ferritin were significantly elevated on TCZ+; but less so in TCZ- pts. WBC & LDH rose regardless of TCZ Rx. Best Biomarkers: WBC, CRP, LDH, Ferritin https://t.co/G4VowxZXGB