Alemtuzumab biosimilar (Shanghai Zhangjiang Biotech)

This is a phase II, prospective, multicenter, open-label study to evaluate the efficacy and safety of Alemtuzumab in patients with relapse and refractory B-cell chronic lymphocytic leukemia.

评估单次不同剂量和多次恒定剂量静脉滴注“重组抗CD52人源化单克隆抗体注射液（rh anti-CD52 Mab）”，在患者体内的安全及耐受性、药代动力学特点，为II期临床试验的给药方案提供依据。