Amneal And Amgen Dealt Same Sensipar Fate
Mixed Verdict On Key Patent Was Delivered In January
Generics players circled around Amgen’s $1.4bn Sensipar brand, filing ANDA products they believed did not meet the claim limitations of the originator’s formulation patent expiring in 2026. A US Court of Appeals handed out a mixed judgment in January this year, leading Amgen and ANDA filer Amneal to petition their respective decisions for rehearings, which have now received a response.
You may also be interested in...
Dr Reddy’s Enters Complicated Sensipar Market In US
Dr Reddy’s Laboratories has launched a generic version of Sensipar in the US, the former blockbuster to treat hyperparathyroidism, with originator Amgen having previously been involved in multiple intellectual property fights over agreements with ANDA sponsors Teva and Cipla.
Amneal Suffers Setback On US Cinacalcet
The US Court Of Appeals has told a Delaware district court to think again on whether Amneal’s generic cinacalcet formulation infringes Amgen’s Sensipar formulation patent. The court also said Zydus Cadila infringed, but Piramal did not.
Piramal’s Sensipar Generic Is Blocked In The US
Piramal halted sales of its generic version of Amgen’s Sensipar following a US court order that also required Amgen to furnish a $39m bond. The Sensipar generic launch landscape continues to be complex with multiple legal challenges, including those from Cipla and Sun at various stages.