Last reviewed · How we verify

Placebo matching mepolizumab

GlaxoSmithKline · Phase 3 active Small molecule

Mepolizumab is an IL-5 inhibitor, which works by binding to the IL-5 protein and preventing it from interacting with its receptor on the surface of eosinophils, thereby reducing eosinophilic inflammation.

Mepolizumab is an IL-5 inhibitor, which works by binding to the IL-5 protein and preventing it from interacting with its receptor on the surface of eosinophils, thereby reducing eosinophilic inflammation. Used for Severe asthma with an eosinophilic phenotype, Chronic rhinosinusitis with nasal polyposis.

At a glance

Generic namePlacebo matching mepolizumab
SponsorGlaxoSmithKline
Drug classIL-5 inhibitor
TargetIL-5
ModalitySmall molecule
Therapeutic areaImmunology
PhasePhase 3

Mechanism of action

IL-5 is a cytokine that plays a key role in the production and survival of eosinophils, a type of white blood cell involved in allergic reactions and asthma. By inhibiting IL-5, mepolizumab reduces the number of eosinophils in the body, which can help alleviate symptoms of asthma and other eosinophilic disorders.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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