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Patient preferences in randomised controlled trials: conceptual framework and implications for research.
Peter Bower1, Michael King, Irwin Nazareth
1NPCRDC, 5th Floor, Williamson Building, University of Manchester, Manchester M13 9PL, UK. peter.bower@man.ac.uk
Social Science & Medicine (1982)
|May 19, 2005
Summary
Patient preferences can impact randomised controlled trials (RCTs). This study develops a conceptual model to understand how preferences affect decision-making in RCTs, improving informed consent and recruitment.
Area of Science:
- Health Services Research
- Clinical Trial Methodology
- Decision Science
Background:
- Patient preferences are increasingly recognized as a factor potentially compromising the validity of randomised controlled trials (RCTs).
- Existing research has focused on methodological and statistical solutions, with less attention given to a conceptual framework for understanding preference effects.
- A theoretical model is needed to explain how patient preferences influence decision-making within the RCT context.
Purpose of the Study:
- To develop a conceptual model explaining the influence of patient preferences on decision-making in randomised controlled trials (RCTs).
- To integrate psychological and economic theories into a preliminary model of preference development and operation within RCTs.
- To examine the implications of this model for enhancing informed consent and recruitment processes in clinical trials.
Main Methods:
- Development of a conceptual model based on psychological and economic theories of preference.
- Conducting a systematic review of empirical data on preference effects in clinical research.
- Analyzing the model's implications for informed consent and participant recruitment strategies.
Main Results:
- A preliminary conceptual model was developed, integrating theoretical concepts of preference from psychology and economics.
- The model outlines the development and operation of patient preferences within the context of randomised controlled trials (RCTs).
- The study identified key implications for improving informed consent and recruitment procedures.
Conclusions:
- The developed conceptual model provides a framework for understanding how patient preferences impact RCTs.
- This model can inform strategies to enhance the validity of clinical trials by addressing preference-related challenges.
- Future research should focus on refining the model and testing its practical applications in improving trial conduct.