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Halozyme Secures Preliminary Injunction Against Merck & Co. in Keytruda Patent Dispute
ByAinvest
Thursday, Dec 4, 2025 3:47 pm ET1min read
Halozyme has been granted a preliminary injunction against Merck & Co. in Germany, preventing the distribution of Keytruda SC due to patent infringement. The ruling applies only to the subcutaneous formulation, not the intravenous one. Merck & Co. disagrees with the ruling and believes its patent is invalid globally. The case is ongoing in both Germany and the US.
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