Bayer Sues Abbott Over Humira

Bayer is alleging Abbott infringed on a patent with its autoimmune treatment, according to published reports Monday.
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A unit of German drug maker

Bayer

is accusing

Abbott Laboratories

(ABT) - Get Report

of patent infringement related to a top-selling drug, according to published reports Monday.

Bayer is seeking damages from Abbott in relation to its Humira drug, which is used to treat autoimmune conditions like rheumatoid arthritis and Crohn's disease,

The Wall Street Journal

reported. Bayer is not trying to prevent Abbott from selling the drug.

The Bayer suit centers on Humira's method of fighting a protein called "tumor necrosis factor," or TNF, that causes inflammation, the

Journal

said. Bayer received a patent for antibodies that fight the protein in 1997.

Abbott denied wrongdoing and said it would fight the suit, the paper said.

Johnson & Johnson

(JNJ) - Get Report

Centocor unit also sued Abbott over Humira in 2007. Centocor makes Remicade, a similar drug.

This article was written by a staff member of TheStreet.com.