Dupixent is approved for treating moderate-to-severe atopic dermatitis, moderate-to-severe asthma, and inadequately controlled chronic rhinosinusitis with nasal polyposis [1]. While Dupixent is not currently approved for psoriasis, its mechanism of action suggests it could be relevant for certain types of this condition [2].
Why is Dupixent considered for psoriasis?
Dupixent targets interleukin-4 (IL-4) and interleukin-13 (IL-13) signaling pathways, which are key drivers of type 2 inflammation [1]. Psoriasis, particularly psoriatic arthritis and the more inflammatory subtypes of plaque psoriasis, involves different inflammatory pathways, primarily involving IL-17, IL-23, and TNF-alpha [3]. However, some research suggests that IL-4 and IL-13 may play a role in specific forms of psoriasis or in the comorbidity of atopic dermatitis and psoriasis [2].
How does Dupixent work?
Dupixent is a monoclonal antibody that inhibits the shared receptor subunit, IL-4 receptor alpha (IL-4Rα). This blocks the signaling of both IL-4 and IL-13, cytokines that contribute to inflammation in various allergic and inflammatory conditions [1]. By reducing this inflammation, Dupixent helps to alleviate symptoms associated with these conditions.
When might Dupixent be used for psoriasis?
Currently, Dupixent is not a standard treatment for plaque psoriasis or psoriatic arthritis, which are typically managed with other targeted therapies [3]. However, in cases where a patient has both atopic dermatitis and psoriasis, or if research identifies a significant role for IL-4/IL-13 in a specific psoriasis phenotype, Dupixent might be explored off-label or in future clinical trials [2].
What are the current treatments for psoriasis?
Standard treatments for moderate-to-severe plaque psoriasis include topical therapies, phototherapy, oral medications (like methotrexate or acitretin), and biologic drugs that target different inflammatory pathways such as TNF-alpha, IL-12/23, IL-17, and IL-23 [3].
What is the patent status for Dupixent?
Drug patents provide market exclusivity for a certain period. Information on Dupixent's patent status and potential expiration dates can be found on specialized drug patent databases [4]. These patents are crucial for pharmaceutical companies that invest heavily in drug development.
Sources:
[1] https://www.dupixent.com/
[2] https://www.drugpatentwatch.com/
[3] https://www.psoriasis.org/about-psoriasis/treatments/
[4] https://www.drugpatentwatch.com/