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Underscoring the lucrative potential for biosimilars, Pfizer (PFE) has accused Johnson & Johnson (JNJ) of using anti-competitive practices to prevent insurers from covering its version of a best-selling J&J medicine.

In a lawsuit filed on Wednesday, Pfizer claims that J&J used various illegal contracting tactics to convince insurers not to cover Inflectra, a biosimilar version of the blockbuster Remicade treatment for rheumatoid arthritis and other diseases. A biosimilar, you may recall, is a nearly identical variant of a brand-name biologic medicine and is expected to provide the same result in patients.

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  • If memory serves, J&J outright sued then Abbott and won $1.7 billion USD for infringement on the Remicade patent by the Humira product, It was overturned on appeal but still rather worse tactics than just low sales, I think.

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