Factors associated with trial recruitment, preferences, and treatments received were elucidated in a comprehensive cohort study

Jenny L. Donovan*, Brent Opmeer, Grace J. Young, Nicola Mills, Richard M. Martin, J. Athene Lane, Chris Metcalfe, Tim J. Peters, Michael Davis, Emma L. Turner, Eleanor Walsh, David E. Neal, Freddie C. Hamdy, ProtecT Study Group

*Corresponding author for this work

Research output: Contribution to journalArticle

1 Citation (Scopus)
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Abstract

Objectives: Recruitment to pragmatic trials is often difficult, and little is known about factors associated with key participation and treatment decisions. These were explored in the Prostate cancer testing and Treatment (ProtecT) study. Study Design and Setting: Baseline sociodemographic, patient-reported outcome, clinical history, and prostate cancer biopsy data were collected for all patients eligible to take part in the ProtecT trial, in a comprehensive cohort design. Men who rejected randomization specified a preferred option and were followed up identically to the randomized cohort. Factors associated with participation decisions, patient preferences, and reasons for changing treatment were explored. Results: Of 2,664 men with clinically localized prostate cancer, 997 (37%) rejected randomization. Their treatment preferences and subsequent treatment choices/changes in both randomized and treatment choice cohorts were strongly associated with prostate cancer risk features: toward active monitoring for low-risk disease and toward radical options with higher risk prostate cancer. Among many factors measured, only a small number of weak associations were found for occupation groups and some patient symptoms. Similar percentages changed from the random allocation and initially stated preference. Conclusion: The comprehensive cohort design provided new insights into trial recruitment and participation decisions. Opportunities to improve recruitment by supporting recruiters with equipoise and patient preferences were identified.

Original languageEnglish
Pages (from-to)200-213
Number of pages14
JournalJournal of Clinical Epidemiology
Volume113
DOIs
Publication statusPublished - 1 Sep 2019

Bibliographical note

Copyright the Author(s) 2019. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

  • Comprehensive cohort
  • Preferences
  • Randomization
  • Randomized trial
  • Recruitment
  • Research participation

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