Regeneron Pharmaceuticals

REGN

Market cap $82.6B

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Regeneron Pharmaceuticals ended 2025 and started this year on a high note. Regeneron and its partner Sanofi are among the leaders in the immune-mediated inflammatory diseases market. In Q4, Dupixent sales grew 22.8% year-on-year and 2.2% quarter-on-quarter to about €4.25 billion.

Sanofi and Regeneron's Dupixent recommended for EU approval to treat chronic spontaneous urticaria in young children with ongoing symptoms despite treatment

If approved, Dupixent would be the first targeted medicine in the EU indicated for children aged 2 to 11 years with CSU inadequately controlled by standard-of-care antihistamine treatment

Regeneron's main growth driver should perform well through the end of the decade. The biotech should launch newer medicines in the coming years.

• Regeneron Pharmaceuticals stock is facing resistance. Why are REGN shares declining?

Sanofi and Regeneron's Dupixent approved in the US as the first and only medicine for allergic fungal rhinosinusitis Approval in adults and children aged 6 years and older supported by phase 3 study demonstrating Dupixent significantly reduced nasal signs and symptoms and systemic corticosteroid use or surgery compared to placebo AFRS is a chronic type 2 inflammatory disease of the sinuses characterized by an allergic hypersensitivity to fungi, often requiring surgery with high rates of post-operative recurrence Dupixent is now approved in the US to treat nine distinct diseases driven in part by type 2 inflammation, including sino-nasal, skin, gut and respiratory system diseases that affect a broad range of patients, from infants to elderly adults Paris and Tarrytown, NY, February 24, 2026. The US Food and Drug Administration (FDA) has approved Dupixent (dupilumab) for the treatment of adult and pediatric patients aged 6 years and older with allergic fungal rhinosinusitis (AFRS) who have a history of sino-nasal surgery.

Approval in adults and children aged 6 years and older supported by Phase 3 trial demonstrating Dupixent significantly reduced nasal signs and symptoms, and systemic corticosteroid use or surgery compared to placebo

This biotech company has a track record of commercializing products and delivering growth. It also has strengths in research and development.

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