Press Release: Sanofi and Regeneron’s Dupixent approved as the first targeted medicine in the EU in over a decade for chronic spontaneous urticaria

Core Insights - The European Commission has approved Dupixent (dupilumab) as the first targeted treatment for moderate-to-severe chronic spontaneous urticaria (CSU) in over a decade, providing a new option for patients aged 12 and older who have not responded adequately to antihistamines [1][4][5] Company Overview - Dupixent is developed jointly by Sanofi and Regeneron, targeting type 2 inflammation by inhibiting interleukin-4 (IL4) and interleukin-13 (IL13) pathways, which are key drivers of CSU [10][12] - The approval is based on the LIBERTY-CUPID phase 3 clinical studies, which demonstrated significant efficacy in reducing itch and hives compared to placebo [2][7][8] Clinical Study Findings - Two phase 3 studies (Study A and Study C) involved 284 patients aged 12 years and older, showing Dupixent significantly reduced urticaria activity and increased the percentage of patients achieving well-controlled disease at 24 weeks [2][7][8] - Study B provided additional safety data for patients who were inadequate responders or intolerant to anti-IgE therapy, confirming Dupixent's efficacy in this subgroup [2][3][7] Market Potential - Approximately 270,000 adults and adolescents in the EU suffer from CSU that remains symptomatic despite standard antihistamine treatment, indicating a significant market opportunity for Dupixent [5][6] - Dupixent is already approved for several chronic inflammatory diseases in over 60 countries, with more than 1.3 million patients treated globally [11][12]