REAL-HLH, a retrospective study of emapalumab (anti-IFNg) was effective in Rheum (15 pts) w/ hemophagocytic lymphohistiocytosis (10 w/ Still's disease, 60% in ICU w/ refractory Dz). EMA normalized CXCL9, ANC, decr steroids & had 12 mo survival=87% https://t.co/MgYul9rCqV https://t.co/pDpriVvAdg