An Overview of Regression Models for Adverse Events Analysis

Elsa Coz, Mathieu Fauvernier () and Delphine Maucort-Boulch
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Elsa Coz: Université de Lyon
Mathieu Fauvernier: Université de Lyon
Delphine Maucort-Boulch: Université de Lyon

Drug Safety, 2024, vol. 47, issue 3, No 2, 205-216

Abstract: Abstract Over the last few years, several review articles described the adverse events analysis as sub-optimal in clinical trials. Indeed, the context surrounding adverse events analyses often imply an overwhelming number of events, a lack of power to find associations, but also a lack of specific training regarding those complex data. In randomized controlled trials or in observational studies, comparing the occurrence of adverse events according to a covariable of interest (e.g., treatment) is a recurrent question in the analysis of drug safety data, and adjusting other important factors is often relevant. This article is an overview of the existing regression models that may be considered to compare adverse events and to discuss model choice regarding the characteristics of the adverse events of interest. Many dimensions may be relevant to compare the adverse events between patients, (e.g., timing, recurrence, and severity). Recent efforts have been made to cover all of them. For chronic treatments, the occurrence of intercurrent events during the patient follow-up usually needs the modeling approach to be adapted (at least with regard to their interpretation). Moreover, analysis based on regression models should not be limited to the estimation of relative effects. Indeed, absolute risks stemming from the model should be presented systematically to help the interpretation, to validate the model, and to encourage comparison of studies.

Date: 2024
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DOI: 10.1007/s40264-023-01380-7

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