Feeling RSV heat from Merck, Sanofi lays out early supply plans for Beyfortus

One day before the potential FDA approval of a rival respiratory syncytial virus monoclonal antibody from Merck, Sanofi has revealed an aggressive supply effort for its RSV blockbuster Beyfortus, including a plan to begin shipping its AstraZeneca-partnered shot early in the third quarter.

Jun 9, 2025 - 16:20
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Feeling RSV heat from Merck, Sanofi lays out early supply plans for Beyfortus
One day before the potential FDA approval of a rival respiratory syncytial virus monoclonal antibody from Merck, Sanofi has revealed an aggressive supply effort for its RSV blockbuster Beyfortus, including a plan to begin shipping its AstraZeneca-partnered shot early in the third quarter.