Paris and Tarrytown, N.Y. Dec. 15, 2022 The European Commission (EC) has expanded the marketing authorization for Dupixent^® (dupilumab) in the European Union to treat adults with moderate-to-severe prurigo nodularis who are candidates for systemic therapy. Prurigo nodularis is a chronic, debilitating skin disease with underlying type 2 inflammation and its impact on quality of life is one of the highest among inflammatory skin diseases. With this approval, Dupixent is the first and only targeted medicine specifically indicated to treat prurigo nodularis in Europe and the U.S.

Naimish Patel, M.D.
Head of Global Development, Immunology and Inflammation at Sanofi
"As the first and only targeted medicine approved to treat people living with prurigo nodularis, Dupixent has the potential to transform the standard-of-care for people in Europe living with this debilitating skin disease. In the pivotal trials, patients treated with Dupixent experienced significant improvements in key hallmarks of the disease, such as reduction in itch and achieving clearer skin, as well as broader impacts on their daily lives. This approval of Dupixent underscores our continued commitment to bringing Dupixent to patients suffering from chronic skin diseases with underlying type 2 inflammation as quickly as possible."   

George D. Yancopoulos, M.D., Ph.D.
President and Chief Scientific Officer at Regeneron
"For the first time, patients with prurigo nodularis in Europe have a medicine that can help relieve the burden of itchy and painful nodules covering their skin, which can have a devastating impact on their day-to-day lives, both physically and mentally. Dupixent is now approved for its second dermatological disease and fourth disease overall. We remain committed to further investigating this innovative medicine for diseases – such as chronic urticarias and chronic obstructive pulmonary disease – in which type 2 inflammation may play a role." 

The EC decision is based on data from two Phase 3 trials, PRIME and PRIME2, evaluating the efficacy and safety of Dupixent (PRIME n=75; PRIME2 n=78) in adults with uncontrolled prurigo nodularis compared to placebo (PRIME n=76; PRIME2 n=82). In these trials, respectively, 44% and 37% of Dupixent patients experienced a clinically meaningful reduction in itch at 12 weeks, compared to 16% and 22% for placebo. The improvement further increased at 24 weeks, with approximately three times as many Dupixent patients (60% and 58%) experiencing a clinically meaningful reduction in itch from baseline, compared to placebo (18% and 20%).  

In PRIME and PRIME2, more than twice as many Dupixent patients (48% and 45%) also achieved clear or almost clear skin at 24 weeks, compared to placebo (18% and 16%). Dupixent also significantly improved health-related quality of life, while reducing measures of skin pain and symptoms of anxiety/depression from baseline at 24 weeks compared to placebo. 

The safety results of the trials were generally consistent with the known safety profile of Dupixent in its approved indications, with the most common side effects across indications including injection site reactions, conjunctivitis, conjunctivitis allergic, arthralgia, oral herpes, and eosinophilia. Adverse events more commonly observed in PN with Dupixent compared to placebo included conjunctivitis (4% vs. 1%).  

Dupixent was granted an additional one-year marketing protection in the EU based on recommendation by the CHMP that the medicine brings significant clinical benefit compared to existing therapies for patients with prurigo nodularis.

About Prurigo Nodularis

Prurigo nodularis is a chronic, debilitating skin disease with underlying type 2 inflammation and has one of the highest impacts on a patient’s quality of life among all inflammatory skin diseases dues to the extreme itch it causes. Those with prurigo nodularis experience intense, persistent itch with thick skin lesions (called nodules) that can cover most of the body. The disease is often painful, with burning, stinging and tingling of the skin and can negatively affect mental health, activities of daily living and social interactions. High-potency topical steroids are commonly prescribed but are associated with safety risks if used long-term. In Europe, about 70,000 adults living with prurigo nodularis are most in need of new treatment options.

About the Dupixent Prurigo Nodularis Trials

The PRIME and PRIME2 Phase 3 double-blind, placebo-controlled trials evaluated the efficacy and safety of Dupixent in 311 adults with uncontrolled prurigo nodularis. In PRIME and PRIME2, the primary endpoint evaluated the proportion of patients with clinically meaningful improvement in itch from baseline (measured by a ≥4-point reduction in Worst-Itch Numeric Rating Scale [WI-NRS] on a 0-10 scale) at 24 and 12 weeks, respectively.

Additional endpoints included the proportion of patients with clear or almost clear skin of nodules at 24 weeks (measured by a score of 0 or 1 on the Investigator's Global Assessment PN-Stage [IGA PN-S] on a 0-4 scale), the proportion of patients who achieved a clinically meaningful response in both WI-NRS and IGA PN-S, improvement from baseline in health-related quality of life (measured by the Dermatology Life Quality Index [DLQI] on a 0-30 scale), improvement from baseline in skin pain (measured by a Numerical Rating Scale from 0-10), and improvement from baseline in symptoms of anxiety and depression (measured by the Hospital Anxiety and Depression Scale [HADS] from 0-42).

About Dupixent

Dupixent is an injection under the skin (subcutaneous injection) at different injection sites. In the EU for adults with prurigo nodularis, Dupixent is administered at 300 mg every two weeks, following a loading dose. It is available as both a pre-filled pen and pre-filled syringe at the 300 mg dose. Dupixent is intended for use under the guidance of a healthcare professional and can be given in a clinic or at home by self-administration after training by a healthcare professional.

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. The Dupixent development program has shown significant clinical benefit and a decrease in type 2 inflammation in Phase 3 trials, establishing that IL-4 and IL-13 are key and central drivers of the type 2 inflammation that plays a major role in multiple related and often co-morbid diseases. These diseases include approved indications for Dupixent, such as atopic dermatitis, asthma, chronic rhinosinusitis with nasal polyposis (CRSwNP) and prurigo nodularis, as well as investigational disease eosinophilic esophagitis (EoE) in the EU.

Dupixent has received regulatory approvals in one or more countries around the world for use in certain patients with atopic dermatitis, asthma, chronic rhinosinusitis with nasal polyposis (CRSwNP), eosinophilic esophagitis (EoE) or prurigo nodularis in different age populations. Dupixent is currently approved for one or more of these indications in more than 60 countries, including in Europe, the U.S. and Japan. More than 500,000 patients have been treated with Dupixent globally.

Dupilumab Development Program

Dupilumab is being jointly developed by Sanofi and Regeneron under a global collaboration agreement. To date, dupilumab has been studied across more than 60 clinical trials involving more than 10,000 patients with various chronic diseases driven in part by type 2 inflammation.

In addition to the currently approved indications, Sanofi and Regeneron are studying dupilumab in a broad range of diseases driven by type 2 inflammation or other allergic processes in Phase 3 trials, including pediatric EoE, hand and foot atopic dermatitis, chronic inducible urticaria-cold, chronic spontaneous urticaria, chronic pruritus of unknown origin, chronic obstructive pulmonary disease with evidence of type 2 inflammation, chronic rhinosinusitis without nasal polyposis, allergic fungal rhinosinusitis, allergic bronchopulmonary aspergillosis and bullous pemphigoid. These potential uses of dupilumab are currently under clinical investigation, and the safety and efficacy in these conditions have not been fully evaluated by any regulatory authority.

About Regeneron

Regeneron is a leading biotechnology company that invents, develops and commercializes life-transforming medicines for people with serious diseases. Founded and led for nearly 35 years by physician-scientists, our unique ability to repeatedly and consistently translate science into medicine has led to nine FDA-approved treatments and numerous product candidates in development, almost all of which were homegrown in our laboratories. Our medicines and pipeline are designed to help patients with eye diseases, allergic and inflammatory diseases, cancer, cardiovascular and metabolic diseases, pain, hematologic conditions, infectious diseases and rare diseases.

Regeneron is accelerating and improving the traditional drug development process through our proprietary VelociSuite^® technologies, such as VelocImmune^®, which uses unique genetically humanized mice to produce optimized fully human antibodies and bispecific antibodies, and through ambitious research initiatives such as the Regeneron Genetics Center^®, which is conducting one of the largest genetics sequencing efforts in the world.

For more information, please visit www.Regeneron.com or follow @Regeneron on Twitter.

About Sanofi
We are an innovative global healthcare company, driven by one purpose: we chase the miracles of science to improve people’s lives. Our team, across some 100 countries, is dedicated to transforming the practice of medicine by working to turn the impossible into the possible. We provide potentially life-changing treatment options and life-saving vaccine protection to millions of people globally, while putting sustainability and social responsibility at the center of our ambitions.

Sanofi is listed on EURONEXT: SAN and NASDAQ: SNY.

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