SPL Set ID: 8886274c-f2b2-48af-85c1-2f90bfe304b8

Nipocalimab-aahu, a neonatal Fc receptor blocker, is a recombinant human immunoglobulin G1 lambda (IgG1λ) monoclonal antibody, expressed in a genetically engineered Chinese hamster ovary cell line. Nipocalimab-aahu has an aglycosylated Fc region, therefore it lacks effector functions. Nipocalimab-aahu has an approximate molecular weight of 142 kilodaltons (kDa). IMAAVY™ (nipocalimab-aahu) injection is a sterile, preservative-free, colorless to slightly brownish, clear to slightly opalescent solution, supplied in a single-dose vial for intravenous infusion after dilution. Each single-dose vial contains either 300 mg/1.62 mL or 1,200 mg/6.5 mL of nipocalimab-aahu at a concentration of 185 mg/mL. In addition, each mL of solution contains arginine hydrochloride (25.35 mg), histidine (0.77 mg), L-histidine monohydrochloride monohydrate (1.07 mg), methionine (1.0 mg), polysorbate 80 (0.60 mg), sucrose (64.3 mg), and water for injection, USP, at a pH of 6.0.