Sanofi Dupixent under USFDA priority review for kids with atopic dermatitis
Paris: Sanofi has recently announced that the U.S. Food and Drug Administration (USFDA) has accepted for Priority Review the supplemental Biologics License Application (sBLA) for Dupixent (dupilumab) as an add-on maintenance treatment for children aged 6 months to 5 years with moderate-to-severe atopic dermatitis whose disease is not adequately controlled with topical prescription therapies or when those therapies are not advisable.
Dupixent is a fully human monoclonal antibody that inhibits the signaling of the interleukin-4 (IL-4) and interleukin-13 (IL-13) pathways and is not an immunosuppressant. IL-4 and IL-13 are key and central drivers of the type 2 inflammation that plays a major role in atopic dermatitis, asthma and chronic rhinosinusitis with nasal polyposis (CRSwNP)
The target action date for the FDA decision on this investigational use is June 9, 2022. Dupixent remains the only biologic medicine approved for patients 6 years of age and older in this indication.
Atopic dermatitis is a chronic type 2 inflammatory skin disease, and 85 to 90% of patients develop symptoms (onset of disease) before 5 years of age, which can often continue through adulthood. Symptoms include intense, persistent itch and skin lesions that cover much of the body, resulting in skin dryness, cracking, pain, redness or darkening, and crusting and oozing, along with increased risk of skin infections. Moderate-to-severe atopic dermatitis may also significantly impact the quality of life of a young child, their parents and caregivers. Current treatment options in this age group are primarily topical steroids, which can be associated with safety risks and may impair growth when used long-term.
The sBLA is supported by data from the pivotal Phase 3 trial evaluating the efficacy and safety of Dupixent added to standard-of-care topical corticosteroids (TCS) in children aged 6 months to 5 years with uncontrolled moderate-to-severe atopic dermatitis. The trial met all primary and secondary endpoints, showing that Dupixent and TCS significantly improved skin clearance and reduced overall disease severity and itch at 16 weeks compared to TCS alone. Safety results were generally consistent with the safety profile of Dupixent in atopic dermatitis for patients aged 6 years and older. The use of Dupixent in children younger than 6 years of age with moderate-to-severe atopic dermatitis is currently under clinical investigation and its safety and efficacy have not been fully evaluated by any regulatory authority.
In 2016, the FDA granted Breakthrough Therapy designation for Dupixent for the treatment of severe atopic dermatitis (in children aged 6 months to 11 years).
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