German court blocks Merck’s Keytruda SC after Halozyme injunction

Biotechnology
8 December 2025

A German court has ordered Merck & Co (NYSE: MRK) to halt launch preparations for its new subcutaneous version of Keytruda (pembrolizumab) in the country, handing Halozyme Therapeutics (Nasdaq: HALO) an early advantage in a widening patent dispute over injectable delivery technology. The ruling follows Halozyme’s request for urgent relief.

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