11/19/2025
We’ve successfully completed the Single Ascending Dose (SAD) portion of our Phase 1 study for our lead candidate, ALX1, an inhaled, nebulized pro-drug designed to deliver nitric oxide directly to the lungs. At all four dose levels in healthy adults, ALX1 was well tolerated with no serious adverse events.
This milestone paves the way for our next steps: the Multiple Ascending Dose (MAD) portion is already underway, and we’re aiming to initiate our Phase 2 study in patients during H1 2026.
We’re incredibly proud of the team, our participants, and our mission: to transform treatment for chronic lung diseases like bronchiectasis, cystic fibrosis, and beyond.
Read the full release here: https://www.vasttherapeutics.com/vast-therapeutics-completes-first-milestone-in-phase-1-clinical-program/