Biosimilar companies chasing Alexion Pharmaceuticals’ Soliris (eculizumab) blockbuster complement C5 inhibitor are already facing up to the originator switching patients to next-generation product Ultomiris (ravulizumab-cwvz), ahead of potential US market formation in 2025.
Now, biosimilar sponsors face a bigger hurdle after the US Food and Drug Administration approved an advanced formulation of Ultomiris...






