Mepolizumab effectiveness for patients with severe, uncontrolled chronic rhinosinusitis with nasal polyps in Italy (MEPOREAL): a real-life, multicentre, phase 4 trial

Study limitation reported by the research below: “The study is ambispective (partly retrospective), so baseline data completeness may vary across centres. Denominators differ across outcomes (e.g., n=519 for disease control vs. n=621 enrolled), suggesting some missing follow-up data.”