Liquidia and United Therapeutics could bring new lung indication into legal saga
Liquidia said in an SEC filing Wednesday that it will “aggressively defend” against a potential new patent covering United Therapeutics’ treprostinil for the treatment of pulmonary hypertension associated with interstitial lung disease (PH-ILD).
The drug has been at the center of an ongoing court battle between the two companies. On Wednesday, Liquidia announced in an SEC filing that United Therapeutics received a notice of allowance regarding its patent application generally covering the treatment of PH-ILD using an inhaled version of treprostinil, meaning the US Patent and Trademark office has determined United is entitled to the patent.
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