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 The drug, Xtampza ER, won a tentative approval in November, but full
approval was contingent on the outcome of a lawsuit filed by Purdue
Pharma against Collegium.
Purdue Pharma, which has also developed abuse-deterrent versions of
the commonly prescribed and often-abused painkiller Oxycontin,
claimed that Xtampza infringed some of its patents.
However, the District Court of Massachusetts in February ruled in
favor of Collegium.
Xtampza ER is a long-acting oral opioid painkiller meant to be taken
after a meal for maximum effect.
(Reporting by Samantha Kareen Nair in Bengaluru)
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