USFDA grants priority review to Sanofi-Regeneron Dupixent for bullous pemphigoid

BP is a chronic, debilitating, and relapsing skin disease with underlying type-2 inflammation that typically occurs in an elderly population. It is characterized by intense itch and blisters, reddening of the skin, and painful lesions. The blisters and rash can form over much of the body and cause the skin to bleed and crust, resulting in patients being more prone to infection and affecting their daily functioning. Approximately 27,000 adults in the US live with BP that is uncontrolled by systemic corticosteroids.

Priority review is granted to regulatory applications seeking approval for therapies that have the potential to provide significant improvements in the treatment, diagnosis, or prevention of serious conditions. Dupixent was previously granted orphan drug designation by the FDA for BP, which applies to investigational medicines intended for the treatment of rare diseases that affect fewer than 200,000 people in the US.

The safety and efficacy of Dupixent in BP are currently under clinical assessment and have not been evaluated by any regulatory authority. Dupilumab is being jointly developed by Sanofi and Regeneron under a global collaboration agreement.