Celltrion's biosimilar Truxima captures 35.8% US prescription market share as of February 2026, becoming the top rituximab drug six years after market entry, with North American sales exceeding 300 billion won and 40% year-over-year growth demonstrating strong competitive positioning in the world's largest pharmaceutical market.
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Celltrion's Truxima Achieves No. 1 Market Share in US

Celltrion's biosimilar Truxima captures 35.8% US prescription market share as of February 2026, becoming the top rituximab drug six years after market entry, with North American sales exceeding 300 billion won and 40% year-over-year growth demonstrating strong competitive positioning in the world's largest pharmaceutical market.

Yonhap Infomax