Vast Therapeutics Unveils Promising Phase 1 Data for ALX1 Inhaled Therapy at ATS 2026
Vast Therapeutics, a clinical-stage life science company, has presented late-breaking Phase 1 data for its inhaled drug candidate ALX1 at the American Thoracic Society (ATS) 2026 International Conference in Orlando, Florida. The data revealed that ALX1, a first-in-class nitric oxide prodrug, was well tolerated in healthy volunteers, with no dose-limiting toxicities observed. The study demonstrated systemic dose-proportional pharmacokinetics, supporting further clinical development in muco-obstructive airway diseases such as bronchiectasis and COPD. The therapy aims to deliver sustained release nitric oxide in the lungs, addressing both inflammatory and microbial drivers of disease progression without toxicity.