Sobi, an international biopharmaceutical company dedicated to rare diseases, and Novimmune SA, a Swiss biotech company, today announced that the U.S. Food and Drug Administration (FDA) has approved Gamifant® (emapalumab-lzsg), an interferon gamma (IFNγ) blocking antibody for the treatment of pediatric (newborn and older) and adult patients with primary hemophagocytic lymphohistiocytosis (HLH) with refractory, recurrent or progressive disease or intolerance to conventional HLH therapy...