INVESTORS & MEDIA
News Release
Sanofi and Regeneron Announce Publication of Positive Phase 2a Results of Dupilumab in Asthma in the New England Journal of Medicine
The proof-of-concept study enrolled 104 patients with moderate-to-severe, persistent asthma that was not well controlled with inhaled glucocorticosteroids (ICS) and long-acting beta agonist (LABA) therapy, and who had elevated blood or sputum eosinophils (immune cells used as a marker of Th2 asthma in this study).
The primary objective of the trial was to assess the effect of dupilumab, dosed subcutaneously, weekly at 300 milligrams (mg) for twelve weeks. Patients were treated with dupilumab (N=52) or placebo (N=52) on top of ICS and LABA therapy for the first four weeks of the study. The LABA was withdrawn at week four and the ICS was tapered to withdrawal between weeks six and nine. Patients were treated for 12 weeks or until they experienced a protocol-defined asthma exacerbation, the primary endpoint of the study. 23 patients (44.2%) receiving placebo experienced an asthma exacerbation compared to three patients (5.8%) receiving dupilumab, resulting in an 87% reduction in the incidence of asthma exacerbations for the dupilumab arm compared to placebo (p < 0.0001).
Clinically meaningful and statistically significant improvements were observed for lung function and other asthma control parameters, such as forced expiratory volume over one second (FEV1) (difference from baseline to week 12 between dupilumab and placebo of 0.27 L, p < 0.001).
Treatment-emergent adverse events (AEs) were reported by a similar proportion of patients in both groups (76.9% placebo; 80.8% dupilumab). AEs were generally non-specific and of mild-to-moderate intensity. The most common AEs for placebo and dupilumab were injection-site reaction (9.6% and 28.8%), nasopharyngitis (3.8% and 13.5%), upper respiratory tract infection (17.3% and 13.5%), headache (5.8% and 11.5%) and nausea (1.9% and 7.7%).
"Despite existing therapies, a significant number of patients with moderate-to-severe, persistent allergic asthma are not optimally controlled, which puts them at risk of poor clinical outcomes. These patients contribute to the significant economic burden of asthma," said
"Through blockade of IL-4R alpha, dupilumab modulates signaling of both the IL-4 and IL-13 pathways, which have been implicated in the pathophysiology of Th2 mediated, or allergic, diseases such as asthma," said
These data will be presented by Dr.
About IL-4R and the IL-4/IL-13 Pathway
Atopic dermatitis and some types of asthma are characterized by the induction of a specific type of an immune response that is driven by a subset of immune cells called Type 2 helper T cells, or Th2 cells. IL-4 and IL-13 are key cytokines that are required for the initiation and maintenance of this Th2 immune response. IL-4 and IL-13 signaling occurs through Type I and II IL-4 receptors (IL-4 through both receptors and IL-13 through Type II receptors), which both contain a common IL-4R alpha subunit.
About Dupilumab (
Dupilumab is a fully human monoclonal antibody directed against IL-4R alpha and is administered via subcutaneous injection. By blocking IL-4R alpha dupilumab modulates signaling of both IL-4 and IL-13, drivers of a Th2 immune response. Dupilumab was created using Regeneron's pioneering VelocImmune® technology and is being co-developed with Sanofi. Dupilumab is currently being studied in both atopic dermatitis and asthma.
About Asthma
Asthma is a chronic inflammatory disease of the airways characterized by airway sensitivity to environmental and biologic factors such as dust, chemicals, smoke, allergens, and viral infections leading to an acute and chronic narrowing of the airway and increased mucus production. Patients with asthma can experience wheezing, shortness of breath, cough and chest tightness, and in severe cases, these symptoms can be life-threatening. For most asthma patients, currently available treatments can control the disease. However, an estimated 10% to 20% of asthmatic patients are less than optimally controlled despite existing therapies. Moderate-to-severe asthma can negatively impact the lives of patients and is associated with a high burden to society both in terms of direct costs of medical care and prescription drugs, as well as loss of productivity. Moderate-to-severe asthma is
recognized as a heterogeneous disease; the Th2 inflammation pathway is believed to play a role in disease pathogenesis in approximately 50% of these patients. It is estimated that approximately 25 million people in
About
About
Regeneron is a leading science-based biopharmaceutical company based in
Sanofi Forward-Looking Statements
This press release contains forward-looking statements as defined in the Private Securities Litigation Reform Act of 1995, as amended. Forward-looking statements are statements that are not historical facts. These statements include projections and estimates and their underlying assumptions, statements regarding plans, objectives, intentions and expectations with respect to future financial results, events, operations, services, product development and potential, and statements regarding future performance. Forward-looking statements are generally identified by the words "expects", "anticipates", "believes", "intends", "estimates", "plans" and similar expressions. Although Sanofi's management believes that the expectations reflected in such forward-looking statements are reasonable, investors are cautioned that forward-looking information and statements are subject to
various risks and uncertainties, many of which are difficult to predict and generally beyond the control of
Regeneron Forward-Looking Statements
This news release includes forward-looking statements that involve risks and uncertainties relating to future events and the future performance of Regeneron, and actual events or results may differ materially from these forward-looking statements. These statements concern, and these risks and uncertainties include, among others, the nature, timing, and possible success and therapeutic applications of Regeneron's products, product candidates, and research and clinical programs now underway or planned; including without limitation dupilumab; unforeseen safety issues resulting from the administration of products and product candidates in patients; the likelihood and timing of possible regulatory approval and commercial launch of Regeneron's late-stage product candidates; determinations by regulatory and administrative governmental authorities which may delay or restrict Regeneron's
ability to continue to develop or commercialize Regeneron's products and product candidates; competing drugs and product candidates that may be superior to Regeneron's products and product candidates; uncertainty of market acceptance of Regeneron's products and product candidates; the ability of Regeneron to manufacture and manage supply chains for multiple products and product candidates; coverage and reimbursement determinations by third-party payers, including
Contacts: |
|
|
|
Media Relations |
Investor Relations |
Marisol Peron |
|
Tel: +33 (0) 1 53 77 45 02 |
Tel: +33 (0)1 53 77 45 45 |
Mobile: +33 (0) 6 08 18 94 78 |
E-mail: IR@sanofi.com |
E-mail: marisol.peron@sanofi.com |
|
Regeneron: |
|
Media Relations |
Investor Relations |
Peter Dworkin |
|
Tel: 1 (914) 847-7640 |
Tel: 1 (914) 847-5126 |
SOURCE
News Provided by Acquire Media