Dupixent Supplemental BLA Filed for Urticaria
FDA has accepted for review a Sanofi and Regeneron supplemental BLA resubmission for Dupixent (dupilumab) to treat adults and pediatric patients aged 12 years and older with chronic spontaneous urticaria (CSU) whose disease is not adequately controlled with H1 antihistamine treatment. The user fee review action target date is 4/18/2025.
In 2023, FDA issued a complete response letter on their supplemental BLA, indicating that “additional efficacy data are required to support an approval; it did not identify any issues with safety or manufacturing,” according to the companies. “An ongoing clinical trial (Study C) continues to enroll patients, with results expected in late 2024 that are anticipated to provide the additional efficacy data,” they said at the time.
Study C has met its primary and key secondary endpoints, confirming results seen in the previous Study A, the companies now say. “Results showed Dupixent significantly reduced itch and urticaria activity (itch and hives),” they add.
Chronic spontaneous urticaria is described as an inflammatory skin condition, which causes sudden, debilitating hives and swelling on the skin. Monoclonal antibody Dupixent works by inhibiting the signaling of the IL-4 and IL-13 pathways, the companies say. It’s currently approved for treating atopic dermatitis, asthma, chronic rhinosinusitis with nasal polyposis, prurigo nodularis and eosinophilic esophagitis.