Sanofi completes acquisition of Vicebio
Paris, December 4, 2025. Sanofi announces the completion of its acquisition of Vicebio Ltd (“Vicebio”).
This acquisition brings an early-stage combination vaccine candidate for respiratory syncytial virus (RSV) and human metapneumovirus (HMPV), both respiratory viruses, and expands the capabilities in vaccine design and development with Vicebio’s ‘Molecular Clamp’ technology.
The acquired vaccine candidate complements Sanofi’s position in respiratory vaccines. It enables Sanofi to offer increased physician and patient choice in RSV and HMPV by adding a non-mRNA vaccine to its pipeline.
About Sanofi
Sanofi is an R&D driven, AI-powered biopharma company committed to improving people’s lives and delivering compelling growth. We apply our deep understanding of the immune system to invent medicines and vaccines that treat and protect millions of people around the world, with an innovative pipeline that could benefit millions more. Our team is guided by one purpose: we chase the miracles of science to improve people’s lives; this inspires us to drive progress and deliver positive impact for our people and the communities we serve, by addressing the most urgent healthcare, environmental, and societal challenges of our time.
Sanofi is listed on EURONEXT: SAN and NASDAQ: SNY
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Sandrine Guendoul | +33 6 25 09 14 25 | sandrine.guendoul@sanofi.com
Evan Berland | +1 215 432 0234 | evan.berland@sanofi.com
Léo Le Bourhis | +33 6 75 06 43 81 | leo.lebourhis@sanofi.com
Victor Rouault | +33 6 70 93 71 40 | victor.rouault@sanofi.com
Timothy Gilbert | +1 516 521 2929 | timothy.gilbert@sanofi.com
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Investor Relations
Thomas Kudsk Larsen | +44 7545 513 693 | thomas.larsen@sanofi.com
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Yun Li | +33 6 84 00 90 72 | yun.li3@sanofi.com
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