Japanese Ministry of Health, Labor and Welfare grants Orphan Drug Designation to tagraxofusp for blastic plasmacytoid dendritic cell neoplasm (BPDCN) The Menarini Group ("Menarini"), a leading international pharmaceutical and diagnostics company, and Stemline Therapeutics, Inc. ("Stemline"), a wholly-owned subsidiary of the Menarini Group, today announced that Nippon Shinyaku Co., Ltd. (Nippon Shinyaku), Stemline's development partner in Japan, received Orphan Drug Designation for tagraxofusp,