Development of a standardised set of metrics for monitoring site performance in multicentre randomised trials: a Delphi study

Diane Whitham, Julie Turzanski, Lucy Bradshaw, Mike Clarke, Lucy Culliford, Lelia Duley, Lisa Shaw, Zoë Skea, Shaun P. Treweek, Kate Walker, Paula R. Williamson, Alan Montgomery (Corresponding Author), Site Performance Metrics for Multicentre Randomised Trials Collaboration

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Abstract

Background Site performance is key to the success of large multicentre randomised trials. A standardised set of clear and accessible summaries of site performance could facilitate the timely identification and resolution of potential problems, minimising their impact. The aim of this study was to identify and agree a core set of key performance metrics for managing multicentre randomised trials. Methods We used a mixed methods approach to identify potential metrics and to achieve consensus about the final set, adapting methods that are recommended by the COMET Initiative for developing core outcome sets in health care. We used performance metrics identified from our systematic search and focus groups to create an online Delphi survey. We invited respondents to score each metric for inclusion in the final core set, over three survey rounds. Metrics scored as critical by ≥70% and unimportant by <15% of respondents were taken forward to a consensus meeting of representatives from key UK-based stakeholders. Participants in the consensus meeting discussed and voted on each metric, using anonymous electronic voting. Metrics with >50% of participants voting for inclusion were retained. Results Round 1 of the Delphi survey presented 28 performance metrics, and a further six were added in round 2. Of 294 UK-based stakeholders who registered for the Delphi survey, 211 completed all three rounds. At the consensus meeting, 17 metrics were discussed and voted on: 15 metrics were retained following survey round 3, plus two others that were preferred by consensus meeting participants. Consensus was reached on a final core set of eight performance metrics in three domains: (1) recruitment and retention, (2) data quality and (3) protocol compliance. A simple tool for visual reporting of the metrics is available from the Nottingham Clinical Trials Unit website. Conclusions We have established a core set of metrics for measuring the performance of sites in multicentre randomised trials. These metrics could improve trial conduct by enabling researchers to identify and address problems before trials are adversely affected. Future work could evaluate the effectiveness of using the metrics and reporting tool.
Original languageEnglish
Article number557
JournalTrials
Volume19
DOIs
Publication statusPublished - 16 Oct 2018

Keywords

  • Multicentre randomised trials
  • Performance metrics
  • Delphi survey
  • Consensus meeting
  • Trial management

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