The Lancet Publishes Results from Two Positive Phase 3 Trials of Dupixent® (dupilumab) in Severe Chronic Rhinosinusitis with Nasal Polyps (CRSwNP)

September 20, 2019 at 6:59 AM EDT

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The Lancet Publishes Results from Two Positive Phase 3 Trials of Dupixent® (dupilumab) in Severe Chronic Rhinosinusitis with Nasal Polyps (CRSwNP)

TARRYTOWN, N.Y. and CAMBRIDGE, Mass., Sept. 20, 2019 /PRNewswire/ -- Regeneron Pharmaceuticals, Inc. (NASDAQ: REGN) and Sanofi today announced that The Lancet has published detailed positive results from two Phase 3 trials evaluating the safety and efficacy of Dupixent^® (dupilumab) in adults with recurring severe chronic rhinosinusitis with nasal polyps (CRSwNP) despite previous treatment with surgery and/or systemic corticosteroids.

Results published in The Lancet demonstrated that adding Dupixent to the standard-of-care corticosteroid nasal spray reduced nasal polyp size and nasal congestion severity (co-primary endpoints). Dupixent also reduced chronic sinus disease associated with nasal polyps and improved sense of smell.

In addition to the results of the primary endpoints of these trials, the publication included a pre-specified pooled analysis that showed Dupixent significantly reduced systemic corticosteroid use by 74% and the need for sino-nasal surgery by 83% compared to placebo. Given that these patients frequently also suffer from asthma, the trials prospectively studied the effect of Dupixent on a subgroup of patients with a history of asthma, and found significant improvements in asthma control and lung function.

"The results published in The Lancet show that Dupixent improved all disease measures of chronic rhinosinusitis with nasal polyps in the trials," said Claus Bachert, M.D., Professor and Head of Clinics of the Department of Otorhinolaryngology at Ghent University and principal investigator of the trials. "In patients with CRSwNP who have a history of asthma, Dupixent was also effective in improving asthma symptoms, lung function and asthma control, as well as upper airway outcomes. This is important news for these patients as they often suffer from high disease burden and are not controlled by standard treatment."

CRSwNP is a chronic disease of the upper airway that obstructs the sinuses and nasal passages. It can lead to breathing difficulties, nasal congestion and discharge, reduced or loss of sense of smell and taste, and facial pressure. Many patients with CRSwNP have other type 2 inflammatory diseases like asthma, and these patients often have more severe asthma and are often more difficult to treat. These co-morbid diseases can lead to an increased risk of asthma attacks, high symptom burden and a substantial adverse impact on health-related quality of life. In the Dupixent CRSwNP trials, 59% of patients also had asthma.

The Lancet publication provides data on key endpoints from 724 patients involved in LIBERTY NP SINUS-24 and LIBERTY NP SINUS-52, which evaluated Dupixent 300 mg every two weeks with standard-of-care mometasone furoate nasal spray (MFNS) compared to placebo injection plus MFNS. These data were presented earlier this year at the 2019 Annual Meeting of the American Academy of Allergy, Asthma & Immunology (AAAAI).

In data reviewed by the U.S. Food and Drug Administration (FDA), adverse reactions that occurred in at least 2% of Dupixent patients and greater than placebo were injection site reactions (6% Dupixent, 4% placebo), conjunctivitis (2% Dupixent, 1% placebo), arthralgia (3% Dupixent, 2% placebo) and gastritis (2% Dupixent, 1% placebo).

Dupixent is a fully-human monoclonal antibody that inhibits the signaling of the interleukin-4 (IL-4) and interleukin-13 (IL-13) proteins. Data from Dupixent clinical trials have shown that IL-4 and IL-13 are key drivers of the type 2 inflammation that plays a major role in CRSwNP as well as asthma and atopic dermatitis.

Dupixent is approved in the U.S. for use with other medicines to treat CRSwNP in adults whose disease is not controlled, and is currently under regulatory review for these patients in the EU and Japan. In addition, Dupixent is approved for use in specific patients with moderate-to-severe atopic dermatitis, and certain patients with asthma in a number of other countries around the world, including the EU, U.S. and Japan.

Dupilumab Development Program

In addition to the currently approved indications, Regeneron and Sanofi are also studying dupilumab in a broad range of clinical development programs for diseases driven by allergic and other type 2 inflammation, including pediatric asthma (6 to 11 years of age, Phase 3), pediatric atopic dermatitis (6 months to 5 years of age, Phase 2/3 and 6 to 11 years of age, Phase 3), eosinophilic esophagitis (Phase 2/3), chronic obstructive pulmonary disease (Phase 3) and food and environmental allergies (Phase 2). Dupilumab is also being studied in combination with REGN3500 (SAR440340), which targets IL-33. These potential uses are investigational and the safety and efficacy have not been evaluated by any regulatory authority. Dupilumab and REGN3500 were invented using Regeneron's proprietary VelocImmune^® technology that yields optimized fully human antibodies, and are being jointly developed by Regeneron and Sanofi under a global collaboration agreement.

U.S. INDICATIONS

DUPIXENT is a prescription medicine used:

to treat people 12 years of age and older with moderate-to-severe atopic dermatitis (eczema) that is not well controlled with prescription therapies used on the skin (topical), or who cannot use topical therapies. DUPIXENT can be used with or without topical corticosteroids. It is not known if DUPIXENT is safe and effective in children with atopic dermatitis under 12 years of age.
with other asthma medicines for the maintenance treatment of moderate-to-severe asthma in people aged 12 years and older whose asthma is not controlled with their current asthma medicines. DUPIXENT helps prevent severe asthma attacks (exacerbations) and can improve your breathing. DUPIXENT may also help reduce the amount of oral corticosteroids you need while preventing severe asthma attacks and improving your breathing. DUPIXENT is not used to treat sudden breathing problems. It is not known if DUPIXENT is safe and effective in children with asthma under 12 years of age.
with other medicines to treat chronic rhinosinusitis with nasal polyposis in adults whose disease is not controlled. It is not known if DUPIXENT is safe and effective in children with chronic rhinosinusitis with nasal polyposis under 18 years of age.

IMPORTANT SAFETY INFORMATION FOR U.S. PATIENTS

Do not use if you are allergic to dupilumab or to any of the ingredients in DUPIXENT^®.

Before using DUPIXENT, tell your healthcare provider about all your medical conditions, including if you:

have eye problems
have a parasitic (helminth) infection
are taking oral, topical, or inhaled corticosteroid medicines. Do not stop taking your corticosteroid medicines unless instructed by your healthcare provider. This may cause other symptoms that were controlled by the corticosteroid medicine to come back.
are scheduled to receive any vaccinations. You should not receive a "live vaccine" if you are treated with DUPIXENT.
are pregnant or plan to become pregnant. It is not known whether DUPIXENT will harm your unborn baby.
are breastfeeding or plan to breastfeed. It is not known whether DUPIXENT passes into your breast milk.

Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins and herbal supplements. If you are taking asthma medicines, do not change or stop your asthma medicine without talking to your healthcare provider.

DUPIXENT can cause serious side effects, including:

Allergic reactions (hypersensitivity), including a severe reaction known as anaphylaxis. Stop using DUPIXENT and tell your healthcare provider or get emergency help right away if you get any of the following symptoms: breathing problems, fever, general ill feeling, swollen lymph nodes, swelling of the face, mouth and tongue, hives, itching, fainting, dizziness, feeling lightheaded (low blood pressure), joint pain, or skin rash.
Eye problems. Tell your healthcare provider if you have any new or worsening eye problems, including eye pain or changes in vision.
Inflammation of your blood vessels. Rarely, this can happen in people with asthma who receive DUPIXENT. This may happen in people who also take a steroid medicine by mouth that is being stopped or the dose is being lowered. It is not known whether this is caused by DUPIXENT. Tell your healthcare provider right away if you have: rash, shortness of breath, persistent fever, chest pain, or a feeling of pins and needles or numbness of your arms or legs.

The most common side effects include:

Atopic dermatitis: injection site reactions, eye and eyelid inflammation, including redness, swelling, and itching, and cold sores in your mouth or on your lips.
Asthma: injection site reactions, pain in the throat (oropharyngeal pain), and high count of a certain white blood cell (eosinophilia).
Chronic rhinosinusitis with nasal polyposis: injection site reactions, eye and eyelid inflammation, including redness, swelling, and itching, high count of a certain white blood cell (eosinophilia), trouble sleeping (insomnia), toothache, gastritis, and joint pain (arthralgia).

Tell your healthcare provider if you have any side effect that bothers you or that does not go away. These are not all the possible side effects of DUPIXENT. Call your doctor for medical advice about side effects. You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch, or call 1-800-FDA-1088.

Use DUPIXENT exactly as prescribed. DUPIXENT is an injection given under the skin (subcutaneous injection). If your healthcare provider decides that you or a caregiver can give DUPIXENT injections, you or your caregiver should receive training on the right way to prepare and inject DUPIXENT. Do not try to inject DUPIXENT until you have been shown the right way by your healthcare provider. In children 12 years of age and older, it is recommended that DUPIXENT be administered by or under supervision of an adult.

Please see full Prescribing Information including Patient Information.

About Regeneron Pharmaceuticals, Inc.

Regeneron (NASDAQ: REGN) is a leading biotechnology company that invents life-transforming medicines for people with serious diseases. Founded and led for 30 years by physician-scientists, our unique ability to repeatedly and consistently translate science into medicine has led to seven FDA-approved treatments and numerous product candidates in development, 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, infectious diseases, pain and rare diseases.

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

For additional information about the company, please visit www.regeneron.com or follow @Regeneron on Twitter.

About Sanofi
Sanofi is dedicated to supporting people through their health challenges. We are a global biopharmaceutical company focused on human health. We prevent illness with vaccines, provide innovative treatments to fight pain and ease suffering. We stand by the few who suffer from rare diseases and the millions with long-term chronic conditions.

With more than 100,000 people in 100 countries, Sanofi is transforming scientific innovation into healthcare solutions around the globe.

Sanofi, Empowering Life

Regeneron Forward-Looking Statements and Use of Digital Media
This press release includes forward-looking statements that involve risks and uncertainties relating to future events and the future performance of Regeneron Pharmaceuticals, Inc. ("Regeneron" or the "Company"), and actual events or results may differ materially from these forward-looking statements. Words such as "anticipate," "expect," "intend," "plan," "believe," "seek," "estimate," variations of such words, and similar expressions are intended to identify such forward-looking statements, although not all forward-looking statements contain these identifying words. 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