Merck (MRK) stock trended lower as Halozyme (HALO) challenges the company over injectable Keytruda patents. Read more here.

The new formulation of Keytruda, currently under FDA review, is sparking conflict with Halozyme, which makes enzymes that ...

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Merck's injected version of its blockbuster cancer drug Keytruda could face a potential patent challenge from biotech ...

Halozyme Therapeutics claims Merck's new Keytruda version infringes on patents, requiring a licensing agreement, reports WSJ.

Merck (MRK) has been adjusting Keytruda to make it easier to use and to protect the company for after the U.S. patent protection runs out in ...

Shares in pharmaceuticals giant Merck (MRK) weakened today on fears that a patent battle could jeopardize its plans to sell a ...

The company has asked the U.S. patent office to reconsider patents that could prevent it from selling an update to Keytruda.

Merck’s push to make Keytruda injectable has triggered a patent dispute with Halozyme. The conflict arises over the use of ...

AbbVie has expanded the availability of SKYRIZI in Canada for ulcerative colitis, strengthening its presence in the ...