Sanofi : FDA approves Dupixent® (dupilumab) for chronic rhinosinusitis with nasal polyposis
FDA approves Dupixent® (dupilumab) for chronic rhinosinusitis with nasal polyposis
- First biologic medicine for adults with inadequately controlled chronic rhinosinusitis with nasal polyposis (CRSwNP)
- Dupixent significantly reduces nasal polyp size, improves congestion and loss of smell, while reducing the need for surgery and systemic corticosteroids
- 59% of clinical trial patients had co-morbid asthma, and experienced improvements in their lung function
- Dupixent now approved for three conditions with underlying type 2 inflammation : moderate-to-severe atopic dermatitis, moderate-to-severe asthma and CRSwNP
PARIS and TARRYTOWN, NY – June 26, 2019 – The U.S. Food and Drug Administration (FDA) has approved Dupixent® (dupilumab) for use with other medicines to treat chronic rhinosinusitis with nasal polyposis (CRSwNP) in adults whose disease is not controlled. CRSwNP can be a debilitating condition, with many patients opting for systemic steroids or nasal surgery which often cannot control this disease. Moreover, CRSwNP often occurs in combination with severe asthma.
“Dupixent is the first FDA approved medicine for adults with chronic rhinosinusitis with nasal polyposis, and the only approved therapy shown to shrink nasal polyp size and also improve the signs and symptoms of the associated chronic rhinosinusitis. In fact, approximately three-quarters of patients treated with Dupixent no longer required either corticosteroids or surgery, the current standards of care,” said George D. Yancopoulos, M.D., Ph.D., President and Chief Scientific Officer at Regeneron. “Importantly, many patients with CRSwNP also suffer from asthma, and Dupixent was shown to improve lung function in these patients as well. This approval further reinforces that IL-4 and IL-13 are key drivers of type 2 inflammation, and we continue to study Dupixent in other type 2 inflammatory diseases, including eosinophilic esophagitis, and food and environmental allergies.”
The FDA evaluated the CRSwNP Dupixent application under Priority Review, which is reserved for medicines that represent potentially significant improvements in efficacy or safety in treating serious conditions.
Dupixent is a fully-human monoclonal antibody that inhibits the signalling of interleukin-4 (IL-4) and interleukin-13 (IL-13), two proteins that play a central role in type 2 inflammation. Data from Dupixent clinical trials have shown that inhibiting IL-4 and IL-13 helps address the type 2 inflammation that plays a major role in CRSwNP, asthma and atopic dermatitis.
“Chronic rhinosinusitis with nasal polyposis can be a debilitating condition. Today’s standard of care – which includes intranasal and systemic corticosteroids and sinus surgery – often leaves patients with CRSwNP with recurring symptoms,” said John Reed, M.D., Ph.D., Head of Research and Development at Sanofi. “In two Phase 3 trials, Dupixent helped patients significantly reduce their nasal congestion, and many patients experienced significant improvement in their sense of smell in as quickly as four weeks. Treatment with Dupixent also reduced the need for systemic steroids and surgery, and led to improvements in health-related quality of life. Importantly, these patients with co-morbid asthma now have a treatment that can help improve their breathing.”
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. In the Dupixent CRSwNP clinical trials, 59% of patients also had asthma. 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.
Efficacy and safety from pivotal clinical trials
The FDA approval is based on two pivotal trials (the 24-week SINUS-24 and 52-week SINUS-52) that are part of the Phase 3 LIBERTY clinical trial program. These trials evaluated Dupixent 300 mg every two weeks with standard-of-care mometasone furoate nasal spray (MFNS) compared to placebo injection plus MFNS. In these trials, Dupixent significantly improved key disease measures and met all primary and secondary endpoints. At 24 weeks, patients treated with Dupixent achieved statistically significant improvements in all primary and secondary endpoints, including:
- Co-primary endpoints:
- 57% and 51% improvement in their nasal congestion/obstruction severity compared to a 19% and 15% improvement with placebo in SINUS-24 and SINUS-52, respectively (least squares [LS] mean change from baseline of -1.34 and -1.25 for Dupixent compared to -0.45 and -0.38 for placebo; difference between Dupixent and placebo: -0.89 and -0.87).
- 33% and 27% reduction in their nasal polyps score compared to a 7% and 4% increase with placebo in SINUS-24 and SINUS-52, respectively (LS mean change from baseline of -1.89 and -1.71 for Dupixent compared to 0.17 and 0.10 for placebo; difference between Dupixent and placebo: -2.06 and -1.80).
- Secondary endpoints include:
- 42% and 27% improvement in sinus opacification compared to 4% and 0% with placebo in SINUS-24 and SINUS-52, respectively (LS mean change from baseline of -8.18 and -5.21 for Dupixent compared to -0.74 and -0.09 for placebo).
- 52% and 45% improvement in loss of smell compared to a 12% and 10% improvement with placebo in SINUS-24 and SINUS-52, respectively (LS mean difference in Dupixent compared to placebo of -1.12 and -0.98 in SINUS-24 and SINUS-52, respectively).
In pre-specified pooled analyses of the two trials up to 52 weeks, Dupixent treatment resulted in a significant reduction of systemic corticosteroid use and the need for sino?nasal surgery compared to placebo.
- The proportion of patients who required systemic corticosteroids was reduced by 74% with Dupixent compared to placebo.
- The proportion of patients who required sino-nasal surgery was reduced by 83% with Dupixent compared to placebo.
In the 59% of patients who also had asthma, the improvements in lung function were similar to patients in the Dupixent asthma program.
Treatment effects on nasal congestion and loss of smell were observed with the first assessment as early as 4 weeks and showed continued improvement for the duration of the trial. In the 52 week SINUS-52 trial, patients continued to do well through the 52 week treatment period.
In the CRSwNP clinical trials, adverse events 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).
Another indication for Dupixent
Dupixent comes in a 300 mg pre-filled syringe for patients with CRSwNP. It is given as a subcutaneous injection every other week at different injection sites. 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.
In addition to CRSwNP, Dupixent is approved in the U.S. for use with other asthma medicines for the maintenance treatment of moderate-to-severe asthma in certain patients aged 12 years and older whose asthma is not controlled with their current asthma medicines; and to treat patients aged 12 years 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.
The wholesale acquisition cost of Dupixent remains unchanged with the addition of this indication. Sanofi and Regeneron are committed to helping patients in the U.S. who are prescribed Dupixent gain access to the medicine and receive the support they may need with the DUPIXENT MyWay® program. For more information, please call 1-844-DUPIXENT (1-844-387-4936) or visit www.DUPIXENT.com.
Outside of the U.S., Dupixent is approved in a number of countries for use in certain adults with moderate-to-severe atopic dermatitis. Dupixent is also approved in a number of other countries, including those in the European Union (EU), Japan and Australia, to treat certain patients aged 12 years and older with severe asthma. Dupixent is currently under regulatory review for patients with CRSwNP in the EU, and for adolescents with moderate-to-severe atopic dermatitis in several countries, including Japan, and in the EU.
Dupilumab development program
In addition to the currently approved indications, Sanofi and Regeneron 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 and atopic dermatitis (6 to 11 years of age, Phase 3), pediatric atopic dermatitis (6 months to 5 years of age, Phase 2/3), eosinophilic esophagitis (Phase 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 is being jointly developed by Sanofi and Regeneron under a global collaboration agreement.
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, neuromuscular diseases, infectious diseases 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.
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