Sanofi Regeneron Alliance Expansion Adds Four Long-Acting Immunology Antibodies, Including REGN20423, in $1 Billion Upfront Deal

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The Sanofi Regeneron Alliance Expansion adds four long-acting, Regeneron-invented immunology antibodies to the Dupixent partnership. Regeneron receives $1 billion upfront, with up to $7 billion more in potential milestones and a 50:50 profit split.