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News Analysis

Nature Reviews Drug Discovery 7, 882–883 (1 November 2008) | doi:10.1038/nrd2751

Patent watch

Charlotte Harrison

Injunction keeps Mircera off the US market An injunction granted by a US district court, which addresses issues of patent infringement and public interest, prevents the US marketing of Roche's anti-anaemia drug Mircera (methoxy polyethylene glycol-epoetin beta). Amgen owns six US patents that relate to recombinant erythropoietin (EPO), which corrects and maintains haemoglobin levels in anaemia.