Sanofi/AstraZeneca Win Beyfortus Approval To Prevent RSV In US Infants

Prophylactic Antibody A Key Asset In Sanofi’s Vaccine Portfolio

Sanofi, which leads commercialization under its 2017 deal with AstraZeneca, may soon compete with a maternal RSV vaccine from Pfizer, but the US may have room for only one infant-protecting option.

Portrait of asian parent hands holding newborn baby
Beyfortus is approved for newborns and toddlers in their second RSV season • Source: Shutterstock

Sanofi received an important win in the US on 17 July when the US Food and Drug Administration approved the AstraZeneca PLC-partnered antibody Beyfortus (nirsevimab) for the prevention of respiratory syncytial virus (RSV) in infants, a key market for one of prime products in the French big pharma’s push to turn its €3bn vaccines portfolio into a €10bn ($10.9bn) business by 2030. However, a Beyfortus challenger that could still garner significant US market share is awaiting approval next month.

Pfizer Inc.’s RSV vaccine Abrysvo was approved for older adults in June shortly after the FDA approved GSK...

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