Mepolizumab

Mepolizumab
Monoclonal antibody
TypeWhole antibody
SourceHumanized (from mouse)
TargetIL-5
Clinical data
Trade namesNucala
AHFS/Drugs.comMonograph
MedlinePlusa615058
License data
Pregnancy
category
  • AU: B1
Routes of
administration
Subcutaneous injection
ATC code
Legal status
Legal status
Pharmacokinetic data
Bioavailability80% (estimate)
Protein bindingNone
MetabolismProteolytic enzymes
Elimination half-life20 (16–22) days
Identifiers
CAS Number
DrugBank
ChemSpider
  • None
UNII
KEGG
Chemical and physical data
Molar mass149 kDa

Mepolizumab, sold under the brand name Nucala, is a humanized monoclonal antibody used for the treatment of severe eosinophilic asthma, eosinophilic granulomatosis with polyangiitis, and hypereosinophilic syndrome.

The most common side effects include headache, injection site reactions, and back pain.