Why Is United Therapeutics Stock Rallying On Tuesday?

Core Insights - United Therapeutics Corporation released positive data from its TETON-2 study, showing that nebulized Tyvaso (treprostinil) significantly improved absolute forced vital capacity (FVC) in patients with idiopathic pulmonary fibrosis (IPF) compared to placebo [1] - The study demonstrated a change in absolute FVC of 95.6 mL from baseline to week 52, indicating the drug's efficacy [1] - The company plans to submit a supplemental New Drug Application to the FDA to include IPF in the labeled indications for nebulized Tyvaso, with data from the ongoing TETON-1 study expected in the first half of 2026 [5] Efficacy and Safety - Benefits of Tyvaso were consistent across various subgroups, including those on background therapy and differing smoking statuses [2] - Statistically significant improvements were noted in secondary endpoints such as time to first clinical worsening event and changes in percent predicted FVC, K-BILD quality of life questionnaire, and DLCO [3] - Treatment was well-tolerated, with no new safety signals reported, aligning with previous studies on Tyvaso [4] Financial Performance - United Therapeutics reported sales of $798.6 million, reflecting a 12% year-over-year increase, with Tyvaso DPI revenue rising 22% to $315 million [6] - Other products, including nebulized Tyvaso, Orenitram, and Unituxin, also experienced double-digit revenue growth year-over-year [6] - Following the positive study results, UTHR stock increased by 41.09% to $430 [6]