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New version of Merck's cancer drug faces possible patent battle, WSJ reports

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New version of Merck's cancer drug faces possible patent battle, WSJ reports

Mar 5, 2025 3:20 AM

March 5 (Reuters) - Biotech Halozyme Therapeutics

believes the new version of Merck's ( MRK ) blockbuster

cancer drug Keytruda infringes on its patents, the Wall Street

Journal reported on Wednesday, citing people familiar with the

matter.

According to Halozyme, Merck ( MRK ) must sign a licensing agreement

in order to sell its new version, the report said.

Merck ( MRK ) is developing an injectable version of Keytruda, which

could protect it from competition when the intravenous version

loses exclusivity later in the decade.

Merck ( MRK ) and Halozyme did not immediately respond to a Reuters

request for comment.

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