Monoclonal Antibody, Anti-Asthmatic
Tezepelumab-ekko is a human monoclonal antibody that binds to human thymic stromal lymphopoietin (TSLP), an epithelial cytokine, and prevents human TSLP from interacting with the heterodimeric TSLP receptor. Blocking TSLP with tezepelumab-ekko reduces biomarkers and cytokines associated with inflammation.
藥動學
1.Distribution: Vd : 3.9 L (central); 2.2 L (peripheral).
2.Metabolism: Undergoes proteolytic degradation via enzymes that are widely distributed in the body; not metabolized by hepatic enzymes.
3.Bioavailability: ~77%.
4.Half-life elimination: ~26 days.
禁忌症
Hypersensitivity to tezepelumab or any component of the formulation.
懷孕分類
Fetal risk cannot be ruled out.
Available evidence is inconclusive or inadequate for determining fetal risk when used in pregnant women.
哺乳分類
Infant risk cannot be ruled out.
副作用
1.Immunologic: Antibody development
2.Neuromuscular & skeletal: Arthralgia , back pain
3.Respiratory: Pharyngitis
劑量和給藥方法
Asthma, severe: SUBQ: 210 mg once every 4 weeks. A minimum of 4 months of treatment is suggested to determine efficacy.
May consider as add-on therapy in patients with severe asthma (with or without inflammatory markers) and a history of severe exacerbations .
小兒調整劑量
Asthma, severe; maintenance therapy Children 12 years and Adolescents: SUBQ: 210 mg every 4 weeks.