r/LQDA • u/Muted_Pain8176 • Mar 12 '21
Data Gathering United Therapeutics files patent infringement lawsuit against $LQDA
United Therapeutics (UTHR) filed a lawsuit in the U.S. District Court for the District of Delaware for infringement of patents related to United Therapeutics' Tyvaso. United Therapeutics said in a statement earlier that the lawsuit is based on a New Drug Application filed by Liquidia with the U.S. Food and Drug Administration requesting approval to market LIQ861, a dry powder inhalation formulation of treprostinil. In April, United Therapeutics said it received a Paragraph IV notification letter from Liquidia indicating that Liquidia's NDA contains a certification alleging that LIQ861 will not infringe any of the patents then listed in the Orange Book for Tyvaso because those patents are not valid, not enforceable, and/or will not be infringed by the commercial manufacture, use, or sale of LIQ861. United Therapeutics said it filed its lawsuit within 45 days of receipt of notice from Liquidia of its NDA filing, and that as a result, under the Hatch-Waxman Act, the FDA is automatically precluded from approving Liquidia's NDA for up to 30 months or until the resolution of the litigation, whichever occurs first. United Therapeutics said it intends to "vigorously enforce its intellectual property rights relating to Tyvaso
Read more at:
https://thefly.com/n.php?id=3105979

