Astegolimab did result in a statistically significant reduction of annualized exacerbation rates in a similar phase 2b trial, but the result was not replicated in phase 3.
Itepekimab performed well in the phase 3 AERIFY-1 trial but fell short of anticipated outcomes in AERIFY-2, prompting further analysis after the mixed results.
Mepolizumab, an IL-5 inhibitor targeting Th2 inflammation characterized by elevate serum eosinophil count, fills a treatment gap for ~70% of adults with uncontrolled COPD.