Aug 22 (Reuters) - Liquidia Corp ( LQDA ) said on
Thursday that it has filed litigation in the U.S. District Court
of the District of Columbia that challenges the recent decision
by the U.S. Food and Drug Administration to grant three-year
exclusivity to United Therapeutics' ( UTHR ) inhaled drug for a
type of lung disorder.
(Reporting by Sneha S K; Editing by Mrigank Dhaniwala)