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Press Release: New Beyfortus data featured at IDWeek reinforce real-world effectiveness against RSV disease and hospitalization in infants
Press Release 
New Beyfortus data featured at IDWeek reinforce realworld effectiveness against RSV disease and hospitalization in infants
Paris, October 9, 2024. Sanofi advances its ambition to protect all infants from respiratory syncytial virus (RSV) disease with new Beyfortus (nirsevimab) data to be presented at the Infectious Disease Society of America’s IDWeek 2024 annual meeting in Los Angeles, California, from October 16-19, 2024.
Thomas Triomphe
Executive Vice President, Vaccines, Sanofi
“The data featured at IDWeek from several national immunization programs will reinforce the proven efficacy and favorable safety profile of Beyfortus against RSV disease and hospitalization in infants. In just the first year of implementation, Beyfortus has demonstrated high real-world effectiveness consistently exceeding 80%. In addition, Beyfortus delivers this protection in the right dose for the right baby. We're proud to set a new standard with Beyfortus as the only approved and proven RSV protection for infants regardless of whether they are born before or during the RSV season, at term or preterm, healthy or with underlying conditions.”
Beyfortus doses continue to be shipped to meet global commitments ahead of the 2024-2025 RSV season. A second manufacturing filling line has been approved by regulatory authorities in the US, Canada, and Europe and represents the majority of our supply for the 2024-2025 season. A third filling line, expected to provide additional doses for the 2024-2025 season, is approved by the European Medicines Agency and under review by the US Food and Drug Administration.
Beyfortus and RSV data at IDWeek 2024
• Thursday, October 17, 12:15-1:30 pm PT: RSV Prophylaxis with Nirsevimab in Infants: Systematic Review of Early Real-World Evidence on Effectiveness and Impact
(Sanofi, presented by Oliver Martyn, MPH, Poster# P-631)
• Thursday, October 17, 12:15-1:30 pm PT: Implementation and Uptake of Nirsevimab within Nemours Children’s Health Delaware Healthcare System (independent study by Nemours Children's Health Delaware, presented by Sara Mann, Poster# P-633)
• Thursday, October 17, 1:15-2:00 pm PT Preventing RSV Lower Respiratory Tract Disease in Infants: The First Year in Review (Sanofi, Learning Lounge event)
• Thursday, October 17, 1:45-3:00 pm PT: Universal Immunization Strategy Against Respiratory Syncytial Virus (RSV) Prevention in Chile with Nirsevimab during the 2024 Winter Season: First Southern Hemisphere Nationwide Effectiveness Data (independent study by University of Chile, presented by Juan Pablo Torres-Torretti, MD, PhD, during the Late Breaker Abstract Session: Respiratory Viruses Across All Ages, #169).
• Friday, October 18, 12:15-1:30 pm PT: Significant Reduction in Disease Burden and a Shift in Clinical Diagnoses in Children Hospitalized with Respiratory Syncytial Virus (RSV) after Nirsevimab Implementation in Catalonia (Spain) (independent study presented by Anna Creus-Costa, MD, Poster# P-1186)
• Friday, October 18, 12:15-1:30 pm PT: The burden of respiratory syncytial virus among Brazilian infants (BONSAI study): preliminary results (Sanofi, presented by Manoel Ribeiro, MD, PhD, Poster# P-1199)
• Saturday, October 19, 12:15-1:30 pm PT: Nirsevimab in Patient Samples Does Not Interfere with Respiratory Syncytial Virus (RSV) Detection by Commercially Available
Rapid Antigen Tests (AstraZeneca, presented by Sarah R. Sincero, BSc, Poster# P-2179)
About RSV
RSV is a highly contagious virus that can lead to serious respiratory illness for infants.1 Two out of three infants are infected with RSV during their first year of life and almost all children are infected by their second birthday.1,2 RSV is the most common cause of lower respiratory tract disease, including bronchiolitis and pneumonia, in infants.3 It is also a leading cause of hospitalization in infants worldwide, with most hospitalizations for RSV occurring in healthy infants born at term.4-7 Globally, in 2019, there were approximately 33 million cases of acute lower respiratory infections leading to more than 3 million hospitalizations in children younger than 5 years.8 RSV-related direct medical costs, globally — including hospital, outpatient and follow-up care — were estimated at €4.82 billion in 2017.9
About Beyfortus
Beyfortus (nirsevimab) is the first immunization designed for all infants for protection against RSV disease through their first RSV season, including for those born healthy at term or preterm, or with specific health conditions. Beyfortus is also designed to protect children up to 24 months of age who remain vulnerable to severe RSV disease through their second RSV season.
As a long-acting antibody provided directly to newborns and infants as a single dose, Beyfortus offers rapid protection to help prevent lower respiratory tract disease caused by RSV without requiring activation of the immune system. Beyfortus administration can be timed to coincide with the RSV season.
Beyfortus has been approved for use in the European Union, the US, China, Japan, and many other countries around the world. Special designations to facilitate expedited development of Beyfortus were granted by several regulatory agencies, including Breakthrough Therapy
Designation and Priority Review designation by The China Center for Drug Evaluation under the
National Medical Products Administration; Breakthrough Therapy Designation and Fast Track
Designation from the US Food and Drug Administration; access granted to the European
Medicines Agency (EMA) PRIority MEdicines (PRIME) scheme and EMA accelerated assessment;
Promising Innovative Medicine designation by the UK Medicines and Healthcare products Regulatory Agency; and Beyfortus has been named “a medicine for prioritized development” under the Project for Drug Selection to Promote New Drug Development in Pediatrics by the Japan Agency for Medical Research and Development.
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.
Sanofi is listed on EURONEXT: SAN and NASDAQ: SNY
Media Relations
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Evan Berland | +1 215 432 0234 | evan.berland@sanofi.com
Nicolas Obrist | + 33 6 77 21 27 55 | nicolas.obrist@sanofi.com Victor Rouault | + 33 6 70 93 71 40 | victor.rouault@sanofi.com Timothy Gilbert | + 1 516 521 2929 | timothy.gilbert@sanofi.com
Investor Relations
Thomas Kudsk Larsen |+ 44 7545 513 693 | thomas.larsen@sanofi.com Alizé Kaisserian | + 33 6 47 04 12 11 | alize.kaisserian@sanofi.com
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Keita Browne | + 1 781 249 1766 | keita.browne@sanofi.com
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Thibaud Châtelet | + 33 6 80 80 89 90 | thibaud.chatelet@sanofi.com
Sanofi forward-looking statements
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References:
1. U.S. Centers for Disease Control and Prevention. RSV in Infants and Young Children.
https://www.cdc.gov/rsv/high-risk/infants-young-children.html. Accessed August 2023.
2. Walsh EE. Respiratory Syncytial Virus Infection: An Illness for All Ages. Clinics in Chest Medicine. 2017;38(1):29-36. https://doi.org/10.1016/j.ccm.2016.11.010.
3. R K. Respiratory Syncytial Virus Vaccines. Plotkin SA, Orenstein WA, Offitt PA, Edwards KM, eds Plotkin’s Vaccines 7th ed Philadelphia. 2018;7th ed. Philadelphia:943-9.
4. Leader S, Kohlhase K. Respiratory syncytial virus-coded pediatric hospitalizations, 1997 to 1999. The Pediatric infectious disease journal. 2002;21(7):629-32.
5. McLaurin KK, Farr AM, Wade SW, Diakun DR, Stewart DL. Respiratory syncytial virus hospitalization outcomes and costs of full-term and preterm infants. Journal of Perinatology: official journal of the California Perinatal Association. 2016;36(11):990-6.
6. Rha B, et al. Respiratory Syncytial Virus-Associated Hospitalizations Among Young Children: 2015-2016. Pediatrics. 2020;146:e20193611.
7. Arriola CS, et al. Estimated Burden of Community-Onset Respiratory Syncytial VirusAssociated Hospitalizations Among Children Aged <2 Years in the United States, 201415. J Pediatric Infect Dis Soc. 2020;9:587-595.
8. Li Y, et al. Global, regional, and national disease burden estimates of acute lower respiratory infections due to respiratory syncytial virus in children younger than 5 years in 2019: a systematic analysis. Lancet. 2022;399:92047–64.
9. Zhang S, et al. Cost of Respiratory Syncytial Virus-Associated Acute Lower Respiratory Infection Management in Young Children at the Regional and Global Level: A Systematic Review and Meta-Analysis. J Infect Dis. 2020;222(Suppl 7):S680-687.