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Nucala has 10 years of patient experience for Severe Eosinophilic Asthma*1,2

*First approved in Q4 2015. Patient experience evidenced by patient‑years of exposure estimated from cumulative global standard units sold from first approval, using the licensed every‑4‑weeks dosing schedule (1 patient‑year = 13 administrations). Estimated total: 618,420 patient‑years by Q1 2025.

The image above is a fictional patient for illustrative purposes

Nucala (mepolizumab) Indication​

Nucala (mepolizumab) is indicated as an add-on treatment for severe refractory eosinophilic asthma in adults, adolescents and children aged 6 years and older. Nucala is also indicated as an add-on therapy with intranasal corticosteroid for the treatment of adult patients with severe chronic rhinosinusitis with nasal polyps (CRSwNP) for whom therapy with systemic corticosteroids and/or surgery do not provide adequate disease control.2

Nucala is not reimbursed for CRSwNP in the UK.

The safety profile of Nucala was consistent across real-world studies and RCTs2-8

Frequency of Nucala (mepolizumab):2 Adverse reactions include:2
Very Common (>1/10) Headache
Common (>1/100 to <1/10) Lower respiratory tract infection
Urinary tract infection
Pharyngitis
Hypersensitivity reactions (systemic allergic)*
Nasal congestion
Abdominal pain upper
Eczema
Back pain
Arthralgia**
Administration-related reactions (systemic non-allergic)***
Local injection site reactions
Pyrexia
Herpes zoster**
Rare (>1/10,000 to <1/1,000) Anaphylaxis**

*Systemic reactions including hypersensitivity have been reported at an overall incidence comparable to that of placebo in the severe eosinophilic asthma and COPD studies.

**From spontaneous post marketing reporting. Herpes zoster was reported uncommonly in severe asthma studies.

***The most common manifestations associated with reports of systemic non-allergic administration-related reactions from patients in the severe eosinophilic asthma studies and COPD were rash, flushing, myalgia and fatigue; these manifestations were reported infrequently and in <1% of patients receiving mepolizumab 100 mg subcutaneously.

Nucala is intended for long-term treatment. In patients with SEA, the need for continued therapy is to be considered at least on an annual basis as determined by physician assessment of the patient's disease severity and level of control of exacerbations.2

In patients with CRSwNP, consideration can be given to alternative treatments in patients who have shown no response after 24 weeks of treatment for CRSwNP. Some patients with initial partial response may subsequently improve with continued treatment beyond 24 weeks.2

Find out more about Nucala

Abbreviations

CRSwNP, chronic rhinosinusitis with nasal polyps; RCTs, randomised controlled trials; SEA, severe eosinophilic asthma.

References

  1. GSK. Nucala cumulative 2015-March 2025 standard units patient exposure. Data on File: REF-277291
  2. Nucala Summary of Product Characteristics.
  3. Pilette C; J Allergy Clin Immunol Pract; 2022;10;2646-2656.
  4. Khurana S, et al. Clin Ther; 2019;41:2041-2056.
  5. Bel EH, et al. N Engl J Med; 2014;371:1189-1197.
  6. Ortega HG, et al. N Engl J Med; 2014;371:1198-1207.
  7. Harrison T; Eur Respir J; 2020;56;1-14.
  8. Han JK, et al. Lancet Respir Med. 2021;9(10):1141-1153

Adverse events should be reported. Reporting forms and information can be found at https://yellowcard.mhra.gov.uk or search for MHRA Yellowcard in the Google Play or Apple App Store. Adverse events should also be reported to GSK on 0800 221 441 or UKSafety@gsk.com.

Feb 2026 I PM-GB-MPL-WCNT-260010 (V1.0)