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Cipla Defeated In US Kyprolis Patent Tussle

Three Key US Patents Not Obvious, Court Finds

 
• By Dean Rudge

Indian firm Cipla went it alone against Amgen and its Onyx Therapeutics subsidiary to obtain a judgment that would allow for market entry in the US for the firm’s generic to the Kyprolis oncology brand. However, a district court has ruled in the main against the firm.

Gavel
Cipla has received a mainly negative verdict on three US Kyprolis patents • Source: Shutterstock

Cipla has suffered defeat in US patent-litigation proceedings with Amgen and its Onyx Therapeutics subsidiary over their Kyprolis (carfilzomib) injectable brand that is set to bar it from generic market entry until December 2027.

A US district court ruled against the Indian firm, finding that it had failed to prove by “clear and convincing evidence” that certain claims were obvious in three key US...

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