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. 2019 Jul-Sep;10(3):137-139.
doi: 10.4103/picr.PICR_91_19.

Study designs: Part 4 - Interventional studies

Rakesh Aggarwal  1 , Priya Ranganathan  2
Affiliations

Study designs: Part 4 - Interventional studies

Rakesh Aggarwal et al. Perspect Clin Res. 2019 Jul-Sep.

Abstract

In the fourth piece of this series on research study designs, we look at interventional studies (clinical trials). These studies differ from observational studies in that the investigator decides whether or not a participant will receive the exposure (or intervention). In this article, we describe the key features and types of interventional studies.

Keywords: Experimental design; randomized controlled trial; research design.

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Conflict of interest statement

There are no conflicts of interest.

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