Alemtuzumab

Alemtuzumab is a humanized monoclonal antibody specific to lymphocyte antigens. It is a recombinant DNA-derived humanized monoclonal antibody (Campath-1H) that is directed against the 21-28 kD cell surface glycoprotein, CD52. The Campath-1H antibody is an IgG1 kappa with the human variable framework and constant regions, and complementarity-determining regions from a murine (rat) monoclonal antibody (Campath-1G). Alemtuzumab is produced in mammalian cell (Chinese hamster ovary) suspension culture in a medium containing neomycin. Alemtuzumab was approved by the FDA in 2001. It is marketed as LEMTRADA for multiple sclerosis (MS) treatment and CAMPTAH for B-cell chronic lymphocytic leukemia (B-CLL). The dose of alemtuzumab used for B-CLL is much higher than that for MS, and also at more frequent dosing.

Alemtuzumab is a humanized monoclonal antibody specific to lymphocyte antigens. It is a recombinant DNA-derived humanized monoclonal antibody (Campath-1H) that is directed against the 21-28 kD cell surface glycoprotein, CD52. The Campath-1H antibody is an IgG1 kappa with the human variable framework and constant regions, and complementarity-determining regions from a murine (rat) monoclonal antibody (Campath-1G). Alemtuzumab is produced in mammalian cell (Chinese hamster ovary) suspension culture in a medium containing neomycin. Alemtuzumab was approved by the FDA in 2001. It is marketed as LEMTRADA for multiple sclerosis (MS) treatment and CAMPTAH for B-cell chronic lymphocytic leukemia (B-CLL). The dose of alemtuzumab used for B-CLL is much higher than that for MS, and also at more frequent dosing.

用于烷化剂氟达拉滨（fludarabine）治疗失败的B细胞性慢性淋巴细胞白血病患者；亦可用于复发缓解型多发性硬化症治疗。

• B-Cell Chronic Lymphocytic Leukemia
• Kidney Transplant Rejection
• Relapsing Remitting Multiple Sclerosis (RRMS)
• Secondary Progressive Multiple Sclerosis (SPMS)
• Steroid Refractory Acute Graft Versus Host Disease
• T-cell Prolymphocytic Leukemia (T-PLL)
• Refractory Autoimmune Hemolytic Anemia
• Refractory Idiopathic thrombocytopenic purpura