Lupin Ltd has announced that the company has settled all ongoing Hatch-Waxman litigation relating to desloratadine tablets, the generic version of Schering-Plough's 'Clarinex' tablets. As per the terms of the settlement, Lupin will be licensed under the relevant desloratadine patents, and free to commercially launch its generic desloratadine product, on July 1, 2012, or earlier in certain circumstances.
Lupin had earlier filed a Paragraph IV certification to, among others, US Patent Nos. 6,100,274, 7,214,683 and 7,214,684, contesting that these patents were either invalid or had not been infringed upon - resulting in the subsequent litigation by Schering Corp. and Sepracor. Schering-Plough's Clarinex tablets had US sales of $329 million for the year 2007-MAT June 2008, according to IMS Health.
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