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  • Open Access

“To have, to hold, from this day forward”: understanding current practice regarding the retention of trial participants

  • 1,
  • 1,
  • 2,
  • 2,
  • 1,
  • 3,
  • 2 and
  • 1
Trials201516 (Suppl 2) :P104

https://doi.org/10.1186/1745-6215-16-S2-P104

  • Published:

Keywords

  • Experienced Trialist
  • Technology Assessment
  • Detailed Account
  • Health Technology Assessment
  • Research Nurse

Background

Inadequate retention can introduce bias and reduce the power of a trial. The aim of this qualitative study was to elicit detailed accounts from trialists regarding strategies used to enhance retention in clinical trials.

Methods

A purposive sample of five trials was selected from the Health Technology Assessment Portfolio of currently funded trials. Semi-structured interviews explored methods utilised by trial teams when collecting data and retaining participants. The data was analysed thematically using techniques of constant comparison.

Findings

Clear and cohesive definitions of retention were given. However, there was less agreement about the concept of ‘withdrawal’ from a trial. More experienced trialists emphasised different levels of withdrawal and were happy to negotiate with participants in order to at least collect primary outcome data. Novice trialists presumed the participants wanted to withdraw from all aspects of the trial and made no further contact with them.

Research Nurses used their interpersonal skills to motivate participants to remain in their trials. This required time not routinely acknowledged within the funding of trials.

Participants described proactive and reactive approaches to retention. Proactive approaches involved anticipated and considered strategies, both formal and informal, to maintain retention. Conversely, reactive approaches were typified by unanticipated and spontaneous strategies, some formalised others informal, developed in response to retention problems during the trial.

Conclusion

The experience of trialists influences their actions during the retention of patients. Recommendations from this study highlight the need for sharing proactive approaches to retention that will benefit the trials community.

Authors’ Affiliations

(1)
University of Bristol, Bristol, UK
(2)
University of Liverpool, Liverpool, UK
(3)
Queen's University, Belfast, UK

Copyright

© Daykin et al. 2015

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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