Mepolizumab
| Monoclonal antibody | |
|---|---|
| Type | Whole antibody |
| Source | Humanized (from mouse) |
| Target | IL-5 |
| Clinical data | |
| Trade names | Nucala |
| AHFS/Drugs.com | Monograph |
| MedlinePlus | a615058 |
| License data |
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| Routes of administration | Subcutaneous injection |
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| Pharmacokinetic data | |
| Bioavailability | 80% (estimate) |
| Protein binding | None |
| Metabolism | Proteolytic enzymes |
| Elimination half-life | 20 (16–22) days |
| Identifiers | |
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| Chemical and physical data | |
| Molar mass | 149 kDa |
| (what is this?) (verify) | |
Mepolizumab, sold under the brand name Nucala by GlaxoSmithKline, is a humanized monoclonal antibody used for the treatment of severe eosinophilic asthma, eosinophilic granulomatosis with polyangiitis, and hypereosinophilic syndrome (HES). It recognizes and blocks interleukin-5 (IL-5), a signalling protein of the immune system.
The most common side effects include headache, injection site reactions, and back pain.