Innovator Schering Corp. sued Sun and Caraco Pharmaceutical Laboratories Ltd. for infringing its latest Clarinex (Desloratadine) patent with intention to block the two drug companies from producing a generic version of the blockbuster allergy treatment.
Innovator sued sun and Caraco for the infringement of following patent:
US7405223 (issued on July 29, 2008; Expiry: Jan 7, 2020): A method of administering a pharmaceutical composition, wherein the method comprises: administering the pharmaceutical composition, comprising desloratadine and a suitable, inert pharmaceutically acceptable carrier or diluent, to target a pharmacokinetic (pK) profile for desloratadine comprising an arithmetic or geometric mean steady state maximum plasma concentration (Cmax) of desloratadine of about 4 ng/mL, and an arithmetic or geometric mean time to maximum plasma concentration (Tmax) of desloratadine of about 3 hours post dose.
Innovator sued sun and Caraco for the infringement of following patent:
US7405223 (issued on July 29, 2008; Expiry: Jan 7, 2020): A method of administering a pharmaceutical composition, wherein the method comprises: administering the pharmaceutical composition, comprising desloratadine and a suitable, inert pharmaceutically acceptable carrier or diluent, to target a pharmacokinetic (pK) profile for desloratadine comprising an arithmetic or geometric mean steady state maximum plasma concentration (Cmax) of desloratadine of about 4 ng/mL, and an arithmetic or geometric mean time to maximum plasma concentration (Tmax) of desloratadine of about 3 hours post dose.
Innovator is already in litigation with Ranbaxy, Sun (Caraco), Watson, Dr. Reddy's, Zydus, Sandoz, Mylan, Orchid, Perrigo, Glenmark, GeoPharma and Lupin for this product.
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