Celltrion's Steqeyma hits 16.2% U.S. ustekinumab market share in July
Steqeyma, Celltrion’s ustekinumab biosimilar, grew to a 16.2% share of the U.S. market in July, up from 10.2% in February, as the company continues to gain ground after its launch. Truxima held a 38.6% share in prescriptions, while Yuflyma reached 9.4% and Inflectra 30.7%. Celltrion attributes Steqeyma’s rise to expanded U.S. reimbursement coverage and preferred formulary status.