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6 November 2019AmericasRory O'Neill

Pfizer and Sun settle Bosulif dispute

Pfizer and Indian drugmaker Sun Pharmaceuticals have agreed to settle patent litigation over a generic version of Pfizer’s leukaemia drug, Bosulif.

Pfizer sued Sun in 2017 at the US District Court for the District of Delaware, alleging that the Indian company’s proposed Bosulif (bosutinib) generic infringed two of its patents.

According to new court filings, the parties have now reached a settlement and licensing agreement that will bring the litigation to an end.

Terms of the settlement were not disclosed.

Sun filed an abbreviated new drug application (ANDA) with the US Food and Drug Administration in November 2016, indicating its intention to develop generic Bosulif products.

Pfizer sought a court declaration that the products described in the ANDA would infringe its two patents and an injunction blocking the generics.

It is not the first time the companies have been embroiled in patent litigation.

In April this year, LSIPR reported that Sun had filed a complaint at the US District Court for the District of New Jersey over an extended-release formulation of Lyrica (pregabalin).

According to the complaint, Pfizer’s product infringed US patent number 9,393,205, covering a gastroretentive tablet comprising pregabalin.

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More on this story

Americas
8 April 2019   India-based drugmaker Sun Pharma has accused Pfizer of infringing a patent with a new extended-release formulation of Lyrica.
Big Pharma
17 December 2019   A subsidiary of Pfizer, Hospira, infringed one of Amgen’s patents and must pay damages of $70 million, the US Court of Appeal for the Federal Circuit has affirmed.

More on this story

Americas
8 April 2019   India-based drugmaker Sun Pharma has accused Pfizer of infringing a patent with a new extended-release formulation of Lyrica.
Big Pharma
17 December 2019   A subsidiary of Pfizer, Hospira, infringed one of Amgen’s patents and must pay damages of $70 million, the US Court of Appeal for the Federal Circuit has affirmed.