...门MedImmune近日宣布，FDA已授予抗CD19单克隆抗体MEDI-551治疗视神经脊髓炎(neuromyelitisoptica，NMO)和视神经脊髓炎谱系疾病(neuromyelitisopticaSpectrumdisorders，NMOSDs)的孤儿药地位。MEDI-551由MedImmune开发，目前处于IIb期临床，开发用于NMO和NMOSD...