Generic Sensipar: Cipla Challenges Legality of Amgen/Teva Patent Settlement
Cipla, which previously settled with Amgen, alleges Sensipar's formulation patent is currently unenforceable due to ‘patent misuse,’ and brand sponsor’s deal with Teva following a brief generic launch violates federal antitrust law and California state law.
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A legal expert details how Piramal Healthcare could turn the tables and secure damages in the litigation pertaining to its generic version of Amgen's Sensipar, a case which saw multiple at-risk launches.
Amgen Fails To Block Cipla’s Generic Cinacalcet In US, And It May Change How Patent Settlements Are Drafted
Amgen is unlikely to succeed on the merits of its breach of contract claim, court says, concluding that Teva’s December launch of its noninfringing generic precludes the Sensipar marketer from seeking recovery for Cipla’s at-risk launch under the Amgen-Cipla settlement agreement.
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.