Following Amneal’s first biosimilar launch last month, the company has made it two with the introduction of its Releuko version of filgrastim in the US. It plans to complete the trinity with its Fylnetra pegfilgrastim biosimilar early next year.

Going toe-to-toe with Amgen on its Neulasta Onpro on-body injector device is a key strategic goal for Coherus BioSciences, although news will be kept concealed until the company’s proposed biosimilar is approved or launched.

Pfizer’s Nyvepria biosimilar was the fourth pegfilgrastim biosimilar approved by the FDA, despite ongoing litigation from originator Amgen. The biosimilar sponsor has cleared any niggling legal issues by settling litigation over a US patent directed at methods of protein purification.