What type of medication is Dupixent (dupilumab)?

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Last updated: March 27, 2025View editorial policy

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From the Guidelines

Dupixent (dupilumab) is a biologic medication classified as a monoclonal antibody that works by blocking interleukin-4 and interleukin-13, two key proteins involved in type 2 inflammation. It is primarily used to treat moderate-to-severe atopic dermatitis (eczema), moderate-to-severe asthma with an eosinophilic phenotype or oral corticosteroid dependence, chronic rhinosinusitis with nasal polyps, and eosinophilic esophagitis. The most recent and highest quality study, published in 2024 in the Journal of the American Academy of Dermatology 1, recommends dupilumab for adults with moderate to severe atopic dermatitis, with a strong recommendation and moderate certainty of evidence. Dupixent is administered as a subcutaneous injection, typically every two weeks after an initial loading dose, though dosing schedules may vary based on the condition being treated and patient factors like age and weight. The medication targets the underlying inflammatory pathways rather than just managing symptoms, which makes it effective for long-term control of these chronic inflammatory conditions. Unlike traditional immunosuppressants, Dupixent has a more targeted approach to immune modulation, potentially resulting in fewer systemic side effects while still effectively reducing inflammation in affected tissues. Some key benefits of dupilumab include its ability to improve symptoms and quality of life for patients with atopic dermatitis, as well as its potential to reduce the need for oral corticosteroids in patients with asthma. However, it is essential to consider the potential side effects and risks associated with dupilumab, such as conjunctivitis, as reported in studies like the one published in Rhinology in 2020 1. Overall, dupilumab is a valuable treatment option for patients with moderate-to-severe atopic dermatitis, asthma, and other conditions characterized by type 2 inflammation.

Some of the key points to consider when prescribing dupilumab include:

  • The patient's medical history and current medications
  • The severity of their condition and the impact on their quality of life
  • The potential benefits and risks of treatment with dupilumab
  • The need for regular monitoring and follow-up to assess treatment response and adjust the dosing schedule as needed. It is crucial to weigh these factors carefully and consider the latest evidence, such as the guidelines published in the Journal of the American Academy of Dermatology in 2024 1, to ensure the best possible outcomes for patients treated with dupilumab.

In terms of specific dosing recommendations, the studies suggest that dupilumab is typically administered as a subcutaneous injection every two weeks, with an initial loading dose, although the exact dosing schedule may vary depending on the condition being treated and patient factors like age and weight, as reported in the european position paper on rhinosinusitis and nasal polyps 2020 1. It is essential to consult the latest clinical guidelines and the patient's medical history to determine the most appropriate dosing schedule for each individual patient.

The evidence from studies like the one published in Rhinology in 2020 1 and the guidelines published in the Journal of the American Academy of Dermatology in 2024 1 supports the use of dupilumab as a effective treatment option for patients with moderate-to-severe atopic dermatitis, asthma, and other conditions characterized by type 2 inflammation. However, it is crucial to carefully consider the potential benefits and risks of treatment with dupilumab and to weigh these factors carefully to ensure the best possible outcomes for patients.

Some of the key takeaways from the latest evidence include:

  • Dupilumab is a biologic medication that works by blocking interleukin-4 and interleukin-13, two key proteins involved in type 2 inflammation
  • It is primarily used to treat moderate-to-severe atopic dermatitis, moderate-to-severe asthma with an eosinophilic phenotype or oral corticosteroid dependence, chronic rhinosinusitis with nasal polyps, and eosinophilic esophagitis
  • The medication targets the underlying inflammatory pathways rather than just managing symptoms, which makes it effective for long-term control of these chronic inflammatory conditions
  • Unlike traditional immunosuppressants, Dupixent has a more targeted approach to immune modulation, potentially resulting in fewer systemic side effects while still effectively reducing inflammation in affected tissues. Overall, dupilumab is a valuable treatment option for patients with moderate-to-severe atopic dermatitis, asthma, and other conditions characterized by type 2 inflammation, and its use should be considered carefully in the context of the latest evidence and clinical guidelines.

From the FDA Drug Label

Dupilumab, an interleukin-4 receptor alpha antagonist, is a human monoclonal antibody of the IgG4 subclass that binds to the IL-4Rα subunit and inhibits IL-4 and IL-13 signaling.

Dupixent (dupilumab) is a monoclonal antibody that works by blocking two proteins that contribute to a type of inflammation. It is specifically an interleukin-4 receptor alpha antagonist. 2 2 2

From the Research

Medication Type

  • Dupixent (dupilumab) is a fully human IgG4 monoclonal antibody against the interleukin (IL)-4 receptor α (IL-4Rα) subunit 3, 4, 5, 6
  • It inhibits the signalling of the type 2 cytokines IL-4 and IL-13, which are key drivers of human type 2 inflammatory disease 3, 4, 5, 6

Mechanism of Action

  • Dupilumab binds to and blocks the IL-4Rα subunit, which is shared by the type I IL-4 and the type II IL-4/IL-13 receptor complexes 3, 5
  • This blockade inhibits IL-4 and IL-13 signalling, leading to a reduction in type 2 inflammation 3, 5

Approved Indications

  • Dupilumab is approved for the treatment of:
    • Moderate-to-severe atopic dermatitis in adults and adolescents 4
    • Severe asthma with a type 2 inflammation/eosinophilic phenotype in patients aged ≥ 12 years 6
    • Chronic rhinosinusitis with nasal polyps in adults 3

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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