Dupixent approved as the first-ever biologic medicine in Japan for patients with COPD

March 28, 2025 – Biotechnology, Clinical Trials, Drug Discovery, PharmaceuticalCOPD, Regeneron, Sanofi, The Ministry of Health Labour and Welfare Japan, clinical trials

  • Following recent approvals in the EU, China, and the US, this approval was based on pivotal phase 3 results in adults with elevated eosinophils
  • Approval marks the first new treatment approach for COPD in more than a decade in Japan and the sixth approved indication for chronic diseases with underlying type 2 inflammation.

28 March 2025 — Paris, France and New York, US — The Ministry of Health, Labour and Welfare in Japan has granted marketing and manufacturing authorization for Dupixent (dupilumab) for the treatment of chronic obstructive pulmonary disease (COPD) in adults whose disease is not adequately controlled with existing therapy.

The approval in Japan was based on data from the landmark BOREAS phase 3 study. The study evaluated Dupixent added to background maximal standard-of-care inhaled therapy (with nearly all patients on triple therapy or double therapy if inhaled corticosteroids were contraindicated) in adults with uncontrolled COPD and elevated blood eosinophils. In the study, Dupixent significantly reduced exacerbations and improved lung function compared to placebo. Safety results in the study were generally consistent with the known safety profile of Dupixent in its approved indications. The most commonly reported adverse event with Dupixent was injection site reaction. Results from BOREAS and the replicate NOTUS phase 3 study were published in The New England Journal of Medicine.

In addition to COPD, Dupixent is approved in Japan in certain patients with atopic dermatitis, asthma, chronic rhinosinusitis with nasal polyposis (CRSwNP), prurigo nodularis, and chronic spontaneous urticaria (CSU). Dupixent for the treatment of COPD has been approved in more than 45 countries worldwide, including the 27 member countries of the EU.

About Regeneron

Regeneron is a leading biotechnology company that invents, develops and commercializes life-transforming medicines for people with serious diseases. Founded and led by physician-scientists, our unique ability to repeatedly and consistently translate science into medicine has led to numerous approved treatments and product candidates in development, most 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, neurological diseases, hematologic conditions, infectious diseases, and rare diseases. Regeneron pushes the boundaries of scientific discovery and accelerates drug development using our proprietary technologies, such as VelociSuite, which produces optimized fully human antibodies and new classes of bispecific antibodies. We are shaping the next frontier of medicine with data-powered insights from the Regeneron Genetics Center and pioneering genetic medicine platforms, enabling us to identify innovative targets and complementary approaches to potentially treat or cure diseases. For more information, please visit www.Regeneron.com.

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 the world, 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. Visit: www.sanofi.com/en.

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