It’s only fair to share… Brensocatib WeightAverage: 420.469Monoisotopic: 420.179755269 Chemical FormulaC23H24N4O4 (2S)-N-[(1S)-1-cyano-2-[4-(3-methyl-2-oxo-1,3-benzoxazol-5-yl)phenyl]ethyl]-1,4-oxazepane-2-carboxamide FDA 8/12/2025. Brinsupri, To treat non-cystic fibrosis bronchiectasis Brensocatib is an investigational new drug that is being evaluated to treat bronchiectasis.[1] It is a dipeptidyl-peptidase I (also known as cathepsin C) inhibitor.[2] A phase 3 clinical trial, known as the ASPEN trial, was conducted to evaluate the safety and efficacy of …