Mepolizumab - GlaxoSmithKline
Alternative Names: 240563; Bosatria; Mepolizamab; Nucala; SB-240563Latest Information Update: 18 Dec 2025
At a glance
- Originator GlaxoSmithKline
- Developer GlaxoSmithKline; GSK; McMaster University; National Institute of Allergy and Infectious Diseases
- Class Anti-inflammatories; Antiallergics; Antiasthmatics; Monoclonal antibodies; Skin disorder therapies
- Mechanism of Action Interleukin 5 inhibitors
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Orphan Drug Status
Yes - Hypereosinophilic syndrome; Churg-Strauss syndrome
Orphan designation is assigned by a regulatory body to encourage companies to develop drugs for rare diseases.
- New Molecular Entity Yes
Highest Development Phases
- Marketed Asthma; Nasal polyps
- Registered Chronic obstructive pulmonary disease; Churg-Strauss syndrome; Hypereosinophilic syndrome
- Phase II Eosinophilic oesophagitis
- Discontinued Atopic dermatitis
Most Recent Events
- 12 Dec 2025 CHMP of EMA recommends approval of mepolizumab for Chronic obstructive pulmonary disease in European Union
- 12 Dec 2025 European Commission decision on approval of Mepolizumab for Chronic obstructive pulmonary disease is anticipated in the first quarter of 2026.
- 12 Dec 2025 Adverse events and efficacy data from the phase-III MATINEE trial in Chronic obstructive pulmonary disease released by GSK