SILVER SPRING, Md. & RESEARCH TRIANGLE PARK, N.C.--(BUSINESS WIRE)--United Therapeutics Corporation (Nasdaq: UTHR), a public benefit corporation, today announced that the New England Journal of Medicine has published full results of its phase 3 TETON-2 study evaluating the use of nebulized Tyvaso for the treatment of IPF. The publication is available online at NEJM.org. The study met its primary efficacy endpoint, with nebulized Tyvaso demonstrating statistically significant improvement in abso.