Systematic Techniques to Enhance rEtention in Randomised controlled trials: the STEER study protocol

Katie Gillies (Lead / Corresponding author), Peter Bower, Jim Elliott, Graeme MacLennan, Rumana S. N. Newlands, Margaret Ogden, Shaun P. Treweek, Mary Wells, Miles D. Witham, Bridget Young, Jill J. Francis

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Abstract

Background: Non-retention of participants seriously affects the credibility of clinical trial results and significantly reduces the potential of a trial to influence clinical practice. Non-retention can be defined as instances where participants leave the study prematurely. Examples include withdrawal of consent and loss to follow-up and thus outcome data cannot be obtained. The majority of existing interventions targeting retention fail to describe any theoretical basis for the observed improvement, or lack of improvement. Moreover, most of these interventions lack involvement of participants in their conception and/or design, raising questions about their relevance and acceptability. Many of the causes of non-retention involve people performing a behaviour (e.g. not returning a questionnaire). Behaviour change is difficult, and the importance of a strong theoretical basis for interventions that aim to change behaviour is increasingly recognised. This research aims to develop and pilot theoretically informed, participant-centred, evidence-based behaviour change interventions to improve retention in trials.

Methods: This research will generate data through semi-structured interviews on stakeholders’ perspectives of the reasons for trial non-retention. It will identify perceived barriers and enablers to trial retention using the Theoretical Domains Framework. The intervention development work will involve identification of behaviour change techniques, using recognised methodology, and co-production of retention interventions through discussion groups with end-users. An evaluation of intervention acceptability and feasibility will be conducted in focus groups. Finally, a ready-to-use evaluation framework to deploy in Studies Within A Trial as well as an explanatory retention framework will be developed for identifying and tackling modifiable issues to improve trial retention.

Discussion: We believe this to be one of the first studies to apply a theoretical lens to the development of interventions to improve trial retention that have been informed by, and are embedded within, participants’ experiential accounts. By developing and identifying priority interventions this study will support efforts to reduce research waste.
Original languageEnglish
Article number197
Pages (from-to)1-10
Number of pages10
JournalTrials
Volume19
Issue number1
DOIs
Publication statusPublished - 27 Mar 2018

Keywords

  • Trials
  • Retention
  • Non-retention
  • Dropout
  • Theory
  • Intervention
  • Interviews

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    Gillies, K., Bower, P., Elliott, J., MacLennan, G., Newlands, R. S. N., Ogden, M., Treweek, S. P., Wells, M., Witham, M. D., Young, B., & Francis, J. J. (2018). Systematic Techniques to Enhance rEtention in Randomised controlled trials: the STEER study protocol. Trials, 19(1), 1-10. [197]. https://doi.org/10.1186/s13063-018-2572-0