Using a single noninferiority margin or preserved fraction for an entire pharmacological class was found to be inappropriate.
Althunian Turki A, de Boer Anthonius, Groenwold Rolf H H, +1 more·Journal of clinical epidemiology
OBJECTIVE: To assess the impact on noninferiority decisions when using a single margin or single preserved fraction (PF) for all noninferiority trials within a pharmacological class. STUDY DESIGN AND SETTING: A search in PubMed, EMBASE, and CENTRAL resulted in seven active-controlled statin trials (nine noninferiority…