{"pressReleaseArticle":{"contentWrapper":{"title":"GSK’s depemokimab accepted for review by Health Canada for the treatment of asthma with type 2 inflammation and for chronic rhinosinusitis with nasal polyps","intro":"","publishDateTime":"26-05-2025 00:00:00","publishDate":"May 26 2025","forInvestorsAndMediaOnlyText":"","shortDescription":"GSK has submitted a New Drug Submission (NDS) to Health Canada for depemokimab","image":null,"downloadLink":null,"tags":[]},"components":[{"type":"rich-text","text":"\n

MISSISSAUGA, ON - GSK has submitted a New Drug Submission (NDS) to Health Canada for depemokimab for two proposed indications: The first indication is as an add-on maintenance treatment of asthma in adult and adolescent patients aged 12 years and older with type 2 inflammation characterized by an eosinophilic phenotype on medium- to high-dose inhaled corticosteroids (ICS) plus another asthma controller. The second indication is as an add-on maintenance treatment of adult patients with inadequately controlled chronic rhinosinusitis with nasal polyps (CRSwNP). The NDS is based on data from the positive SWIFT and ANCHOR trials.

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Michelle Horn, Country Medical Director, GSK Canada, said: “The combined submission for asthma and CRSwNP marks a significant step toward addressing the unmet needs of patients. Backed by strong clinical evidence, depemokimab has the potential to become the first ultra-long-acting biologic offering patients sustained inhibition of IL-5, a key driver of their disease with twice-yearly dosing, and represents a promising advancement for patients and physicians alike.”

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Depemokimab, a monoclonal antibody that targets IL-5, is the first ultra-long-acting biologic to be evaluated in phase III trials.1,2,3 IL-5 is a key cytokine (protein) in type 2 inflammation.1,5,6 Type 2 inflammation is typically identified by blood eosinophil count and is an underlying driver in many diseases. This type of inflammation is present in the majority of patients with difficult to treat asthma and can lead to exacerbations and hospitalization.5,6,7 Type 2 inflammation is also present in up to 85% of people with CRSwNP and is associated with more severe disease and symptoms.8,9,10,11,12 With IL-5 inhibition, eosinophils are significantly reduced and there is evidence to show IL-5 has broader effects on other structural and immune cell types beyond eosinophils.5,6,22,23,24,25,26

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In patients with asthma with type 2 inflammation and patients with CRSwNP, the SWIFT and ANCHOR trials, respectively, met their primary endpoints, showing that depemokimab could offer sustained inhibition of an important driver of their disease, and help achieve key clinical outcomes with a dosing schedule of just two injections per year.1,2,3 Depemokimab's extended half-life, high-binding affinity and potency, support a dosing regimen of one injection every six months (26 weeks)..1,2,3 As demonstrated in studies of other diseases, longer intervals between doses have been shown to overcome barriers to optimal care, such as patient adherence, and can reduce the burden of disease for patients.4

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In Canada, more than 4.7 million people are currently affected by asthma, a chronic and sometimes debilitating condition.27 Many Canadian asthmatics continue to experience symptoms such as difficulty breathing and chest tightness, despite treatment with high-dose inhaled corticosteroids plus a second controller (and/or systemic corticosteroids). 5,20

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People with CRSwNP experience symptoms such as nasal obstruction, loss of smell, facial pain, sleep disturbance, infections and nasal discharge that can significantly affect their emotional and physical well-being.8,9,10,11 Such symptoms mean the impact of CRSwNP on overall quality of life has been reported to be comparable with other chronic diseases such as COPD, asthma, and diabetes.9

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The safety and effectiveness of depemokimab are still under investigation and authorization has not yet been granted. Depemokimab is currently not approved for use in any country.

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About SWIFT-1 and SWIFT-2

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SWIFT-1 and SWIFT-2 were replicate 52-week, randomised (2:1), double-blind, placebo-controlled, parallel-group, multi-centre Phase III clinical trials.1 The trials assessed the efficacy and safety of depemokimab as adjunctive therapy in 382 and 380 participants with severe asthma with type 2 inflammation characterised by blood eosinophil count, including adult and adolescent patients, who were randomised to receive depemokimab or a placebo respectively, in addition to their standard of care treatment with medium to high-dose inhaled corticosteroids plus at least one additional controller.1 In each trial, the rate of asthma exacerbations was significantly lower in the depemokimab group than in the placebo group. 1

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These results have been reported and published in the New England Journal of Medicine.1

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About ANCHOR-1 and ANCHOR-2

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ANCHOR-1 and ANCHOR-2 were replicate 52-week, randomised (1:1), double-blind, placebo-controlled, parallel-group, multi-centre Phase III clinical trials. 2,3 The trials assessed the efficacy and safety of depemokimab as add-on therapy to standard of care in 271 and 257 adult patients with CRSwNP inadequately controlled on intranasal corticosteroids.2,3 The co-primary endpoints were met with statistically significant reductions in nasal polyp size and nasal obstruction in patients receiving depemokimab versus placebo, at 52 weeks. 2,3

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Full results of ANCHOR-1 and ANCHOR-2 have been reported and published in The Lancet.19

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About GSK in respiratory

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GSK is redefining the future of respiratory medicine as it builds on decades of pioneering work to deliver more ambitious treatment goals and develop the next-generation standard of care, for hundreds of millions of people with respiratory diseases. With an industry-leading respiratory portfolio and pipeline of vaccines, targeted biologics, and inhaled medicines, we are focused on improving outcomes and the lives of people living with all types of asthma and COPD along with less understood diseases like refractory chronic cough or rarer conditions like systemic sclerosis with interstitial lung disease. GSK is harnessing the latest science and technology with the aim to modify underlying disease dysfunction and prevent disease progression.

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About GSK

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GSK is a global biopharma company with a purpose to unite science, technology, and talent to get ahead of disease together. Find out more at www.ca.gsk.com/en-ca.

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Cautionary statement regarding forward-looking statements

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GSK cautions investors that any forward-looking statements or projections made by GSK, including those made in this announcement, are subject to risks and uncertainties that may cause actual results to differ materially from those projected. Such factors include, but are not limited to, those described in the “Risk Factors” section in GSK’s Annual Report on Form 20-F for 2024, and GSK’s Q1 Results for 2025.

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References

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    \n
  1. Jackson DJ, et al. Six Monthly Depemokimab in Severe Asthma With an Eosinophilic Phenotype. NEJM. Published on September 9 at NEJM.org.
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  2. gov. Efficacy and Safety of Depemokimab (GSK3511294) in Participants With Chronic Rhinosinusitis With Nasal Polyps (ANCHOR-1) Available at: https://clinicaltrials.gov/study/NCT05274750. Accessed February 2025
    3. \n
  3. gov. Efficacy and Safety of Depemokimab (GSK3511294) in Participants With Chronic Rhinosinusitis With Nasal Polyps (ANCHOR-2) Available at: https://clinicaltrials.gov/study/NCT05281523. Accessed February 2025
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  4. Scarsi KK, Swindells S. The Promise of Improved Adherence With Long-Acting Antiretroviral Therapy: What Are the Data? Journal of the International Association of Providers of AIDS Care (JIAPAC). 2021;20.
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  5. Global Initiative for Asthma. Global Strategy for Asthma Management and Prevention,2024. Updated May 2024. Available at: https://ginasthma.org/. Accessed February 2025.
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  6. Heaney L, et al. Eosinophilic and Noneosinophilic Asthma: An Expert Consensus Framework to Characterize Phenotypes in a Global Real-Life Severe Asthma Cohort. Chest. 2021;160(3):814-830.
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  7. Principe S, et al. Severe asthma: Targeting the IL-5 pathway. Clin Exp Allergy. 2021 Aug;51(8):992-1005
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  8. Laidlaw TM, et al. Chronic Rhinosinusitis with Nasal Polyps and Asthma. J. Allergy Clin. Immunol. 2001;9(3):1133-1141.
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  9. Bachert C, et al. Burden of Disease in Chronic Rhinosinusitis with Nasal Polyps. J Asthma Allergy. 2021;b 11;14:127-134.
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  10. De Corso E, et al. How to manage recurrences after surgery in CRSwNP patients in the biologic era: a narrative review. Acta Otorhinolaryngol Ital. 2023;43(Suppl. 1):S3-S13.
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  11. Chen S, et al. Systematic literature review of the epidemiology and clinical burden of chronic rhinosinusitis with nasal polyposis. Curr Med Res Opin. 2020;36(11):1897-1911.
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  12. Bachert C, et al. EUFOREA expert board meeting on uncontrolled severe chronic rhinosinusitis with nasal polyps (CRSwNP) and biologics: Definitions and management. J Allergy Clin Immunol. 2021;147(1):29-36.
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  13. American Lung Association. Severe Asthma. Available at: https://www.lung.org/lung-health-diseases/lung-disease-lookup/asthma/learn-about-asthma/types/severe-asthma. Accessed February 2025.
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  14. American Lung Association. Asthma Trends and Burden. Available at: https://www.lung.org/research/trends-in-lung-disease/asthma-trends-brief/trends-and-burden. Accessed February 2025.
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  15. gov. An Open-Label Extension Study of GSK3511294 (Depemokimab) in Participants Who Were Previously Enrolled in 206713 (NCT04719832) or 213744 (NCT04718103) (AGILE). Available at: https://clinicaltrials.gov/study/NCT05243680. Accessed February 2025.
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  16. gov. A Study of GSK3511294 (Depemokimab) Compared With Mepolizumab or Benralizumab in Participants With Severe Asthma With an Eosinophilic Phenotype (NIMBLE). Available at: https://clinicaltrials.gov/study/NCT04718389. Accessed February 2025.
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  17. gov. Efficacy and Safety of Depemokimab Compared With Mepolizumab in Adults With Relapsing or Refractory Eosinophilic Granulomatosis With Polyangiitis (EGPA) Available at: https://clinicaltrials.gov/study/NCT05263934. Accessed February 2025.
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  18. gov. Depemokimab in Participants With Hypereosinophilic Syndrome, Efficacy, and Safety Trial (DESTINY) Available at: https://clinicaltrials.gov/study/NCT05334368. Accessed February 2025.
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  19. Gevaert P, et al. Efficacy and safety of twice per year depemokimab in chronic rhinosinusitis with nasal polyps (ANCHOR-1 and ANCHOR-2): phase III, randomised, double-blind, parallel trials. The Lancet. Published on February 28 at thelancet.com.
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  20. World Health Organisation. Asthma Key Facts. Available at: https://www.who.int/news-room/fact-sheets/detail/asthma. Accessed February 2025
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  21. Israel, E, et al. Severe and Difficult-to-Treat Asthma in Adults. N Engl J Med 2017;377:965-76.
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  22. Buchheit KM, et al. Mepolizumab targets multiple immune cells in aspirin-exacerbated respiratory disease. J Allergy Clin Immunol. 2021;148(2):574-584.
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  23. Barretto KT, et al. Human airway epithelial cells express a functional IL-5 receptor. Allergy. 2020;75(8):2127-2130.
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  24. Bajbouj K, et al. IL-5 receptor expression in lung fibroblasts: Potential role in airway remodelling in asthma. Allergy. 2023;78(3):882-885.
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  25. Siddiqui S, et al. Eosinophils and tissue remodeling: Relevance to airway disease. J Allergy Clin Immunol. 2023;152(4):841-857.
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  26. Bergantini L, et al. Regulatory T cell monitoring in severe eosinophilic asthma patients treated with mepolizumab. Scand J Immunol. 2021;94(1):e13031.
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  27. Public Health Agency of Canada. (2024). Canadian Chronic Disease Surveillance System (CCDSS) Data Tool. Retrieved from https://health-infobase.canada.ca/ccdss/data-tool/
    28. \n
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