Sanofi to acquire Kymab, adding KY1005 to its pipeline, a human monoclonal antibody targeting key immune system regulator OX40L

Continues to build on Sanofi’s leading presence in immunology aligned with strategy to pursue best-in-class treatments in defined areas

PARIS and CAMBRIDGE, UK – January 11, 2021 – Sanofi and Kymab, a clinical-stage biopharmaceutical company developing fully human monoclonal antibodies with a focus on immune-mediated diseases and immuno-oncology therapeutics, have entered into an agreement under which Sanofi will acquire Kymab for an upfront payment of approximately $1.1 billion and up to $350 million upon achievement of certain milestones.