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Brand names: Exdensur
12.1 Mechanism of Action Depemokimab‑ulaa is an IL‑5 antagonist (humanized IgG1 kappa monoclonal antibody), which binds to IL‑5 with a dissociation constant of 10.5 pM, inhibiting the bioactivity of IL‑5 with in vitro IC50 value of 4 pM by blocking its binding to the alpha chain of the IL‑5 receptor complex expressed on the cell surface. Depemokimab‑ulaa contains a triple amino acid substitution (YTE) in the fragment crystallizable (Fc) region which increases binding to the neonatal Fc receptor and thereby extends the elimination half‑life. These properties support the dosing interval of every 6 months. IL‑5 is the major cytokine responsible for the growth and differentiation, recruitment, activation, and survival of eosinophils. Inflammation is an important component in the pathogenesis of asthma. Multiple cell types (e.g., mast cells, eosinophils, neutrophils, macrophages, lymphocytes) and mediators (e.g., histamine, eicosanoids, leukotrienes, cytokines) are involved in inflammation.
Contraindications
1 documented side effects by frequency
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Dosage Forms
Tablet
Route
Subcutaneous