The Ceiling Effect, the Floor Effect, and the Importance of Active and Placebo Control Arms in Randomized Controlled Trials of an Investigational Drug

Randomized controlled trials (RCTs) of a new investigational drug often include active as well as placebo control arms. The active arm, comprising an approved treatment for the indication under study, along with the placebo arm, are together required to establish assay sensitivity; if the active tre...

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Bibliographic Details
Main Author: Chittaranjan Andrade
Format: Article
Language:English
Published: SAGE Publishing 2021-07-01
Series:Indian Journal of Psychological Medicine
Online Access:https://doi.org/10.1177/02537176211021280