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Updated: Mar 5, 2026

A Clinical Trial Assessing the Safety, Efficacy, and Delivery of Olive-Oil-Based Three-Chamber Bags for Parenteral Nutrition
Published on: September 20, 2019
Why non-inferiority is more challenging than superiority?
1Biostatistics Unit, Department of Health Sciences (DISSAL), University of Genoa, Genova, Italy.
Abstract:
Demonstrating non-inferiority in clinical trials is usually more challenging than showing superiority. In multiple sclerosis (MS), non-inferiority trials are rarely designed since they would require prohibitive sample sizes. In this brief report, the reasons why non-inferiority trials are usually larger than superiority trials is explored.
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