Insmed IncPositive 12-month data for TPIP in PAH supports Phase 3 trial launch, showing sustained efficacy and safety.

Insmed announced positive 12-month data from the ongoing open-label extension study of treprostinil palmitil inhalation powder, or TPIP, in patients with pulmonary arterial hypertension. The non-placebo-controlled trial showed sustained improvement across all efficacy endpoints and no new safety signals. At 12 weeks, the TPIP Continued group had a mean 6-minute walk distance improvement of 55.7 meters from baseline, while the Placebo Crossed group improved by 54.1 meters. NT-proBNP levels fell roughly 60% in both groups, and over 78% of patients achieved WHO Functional Class I or II. These findings support the launch of PALM-PAH, a Phase 3 randomized, double-blind, placebo-controlled trial of once-daily TPIP over 24 months.
Insmed IncPositive 12-month data for TPIP in PAH supports Phase 3 trial launch, showing sustained efficacy and safety.