TARGET Protein: the effect of augmented administration of enteral protein to critically ill adults on clinical outcomes-statistical analysis plan for a cluster randomized, cross-sectional, double cross-over, clinical trial.

IF 2 4区医学 Q3 MEDICINE, RESEARCH & EXPERIMENTAL Trials Pub Date : 2025-02-06 DOI:10.1186/s13063-025-08759-0

Sophie Zaloumis, Matthew J Summers, Jeffrey J Presneill, Rinaldo Bellomo, Lee-Anne S Chapple, Marianne J Chapman, Adam M Deane, Suzie Ferrie, Craig French, Sally Hurford, Nima Kakho, Matthew J Maiden, Stephanie N O'Connor, Sandra L Peake, Emma J Ridley, An Tran-Duy, Patricia J Williams, Paul J Young, Amalia Karahalios

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Abstract

Background: The TARGET Protein trial will evaluate the effect of greater enteral protein delivery (augmented protein) on clinical outcomes of critically ill adult patients when compared to usual care.

Objective: To describe the statistical analysis plan for the TARGET Protein trial.

Methods: TARGET Protein is a cluster randomized, cross-sectional, double cross-over, open-label, registry-embedded, pragmatic clinical trial conducted across Australia and New Zealand. The trial randomized eight intensive care units (ICU) to receive enteral formula containing either higher dose enteral protein (augmented protein) or usual dose protein in a 1:1 ratio. Each ICU received one trial formula for a 3-month period and then switched to the alternate formulae. This sequence was repeated, for a total trial length of 12 months. The primary outcome is the number of days free of the index hospital and alive at day 90. Secondary outcomes include proportion of patients alive at day 90, survivor-only analysis of days free of the index hospital at day 90, duration of invasive ventilation, ICU and hospital length of stay, incidence of tracheostomy insertion, renal replacement therapy, and discharge destination. The statistical methods and models which will be used to estimate the effects for the primary and secondary outcomes are described. All statistical models will account for the cluster-randomized cross-over design to ensure correct estimation of the 95% confidence intervals. Trial enrolment is complete with 3412 patients enrolled. Data linkage is ongoing.

Conclusion: This statistical analysis plan enables transparent reporting of the TARGET Protein trial. It will reduce the risk of potential selective reporting biases.

Trial registration: Australian New Zealand Clinical Trials Registry (ACTRN12621001484831). Registered on November 1, 2021.

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来源期刊

Trials 医学-医学：研究与实验

CiteScore

3.80

自引率

4.00%

发文量

966

审稿时长

6 months

期刊介绍： Trials is an open access, peer-reviewed, online journal that will encompass all aspects of the performance and findings of randomized controlled trials. Trials will experiment with, and then refine, innovative approaches to improving communication about trials. We are keen to move beyond publishing traditional trial results articles (although these will be included). We believe this represents an exciting opportunity to advance the science and reporting of trials. Prior to 2006, Trials was published as Current Controlled Trials in Cardiovascular Medicine (CCTCVM). All published CCTCVM articles are available via the Trials website and citations to CCTCVM article URLs will continue to be supported.