** Shares of drugmaker United Therapeutics UTHR.O jump 15.7% to $604.99 premarket
** Co says its inhaled drug Tyvaso improved lung function in patients with idiopathic pulmonary fibrosis, a rare disease that scars the lungs and makes breathing difficult
** Co says a late-stage study met its main goal, showing better lung capacity and lower risk of the disease worsening versus placebo
** Results were consistent across patients, including those on other treatments and with different smoking histories; no new safety issues seen, co says
** Says it plans to seek U.S. FDA priority review by end of summer to expand Tyvaso’s use to the lung disease; similar results seen in a second study published in the New England Journal of Medicine
** Shares rose ~38% in 2025
(Reporting by Sahil Pandey in Bengaluru)
((Sahil.Pandey@thomsonreuters.com))