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Samsung Bioepis Publishes Tenth US Biosimilar Market Report; Considers US MFN Policy May Reduce Biosimilar Competition

Jul 21, 2025

On 21 July 2025, Samsung Bioepis published its US Biosimilar Market Report, which has been released every quarter since April 2023.  The report details average sales price (ASP) and wholesale acquisition cost (WAC) information for commercially available biosimilars in the US.

The Q3/2025 edition reports that, as of June 2025, the FDA has approved 75 biosimilars, with 52 of those launched.  On average, the ASP of biosimilars remained 20-30% lower than reference biologics, with increased discounts in crowded markets, such as those for adalimumab and ustekinumab.

The biosimilars US-approved in Q3 were Bio-Thera’s Starjemza® (ustekinumab, May 2025) and Biocon’s Jobevne (bevacizumab, April 2025).  Biosimilars with US launches in Q3 were Sandoz’s Jubbonti® and Wyost® (denosumab, June 2025) and Samsung Bioepis/Teva’s Epysqli® (eculizumab, April 2025).

According to the Report, biosimilars in the US have gained an average of 52% market share within 5 years post initial launch.  However, some biosimilar markets have faster uptake speeds than others; in particular, oncology, ophthalmology and pegfilgrastim biosimilars reached an average of 81% market share 5 years post launch.

In a “Biosimilar Deep Dive”, the Samsung Bioepis Report considers potential implications of the US Government’s most favoured nation (MFN) policy on the US biosimilars market.  The MFN policy aims to reduce drug costs by ensuring access to the lower prices typically paid by similar nations.  The Report concludes that, although there remains uncertainty regarding MFN implementation, the policy may result in a smaller market, reducing commercial opportunities for biosimilars to enter and compete effectively and discouraging biosimilar manufacturers from investing in new products.