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. 2013 Jan 8:346:e7586.
doi: 10.1136/bmj.e7586.

SPIRIT 2013 explanation and elaboration: guidance for protocols of clinical trials

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SPIRIT 2013 explanation and elaboration: guidance for protocols of clinical trials

An-Wen Chan et al. BMJ. .

Abstract

High quality protocols facilitate proper conduct, reporting, and external review of clinical trials. However, the completeness of trial protocols is often inadequate. To help improve the content and quality of protocols, an international group of stakeholders developed the SPIRIT 2013 Statement (Standard Protocol Items: Recommendations for Interventional Trials). The SPIRIT Statement provides guidance in the form of a checklist of recommended items to include in a clinical trial protocol. This SPIRIT 2013 Explanation and Elaboration paper provides important information to promote full understanding of the checklist recommendations. For each checklist item, we provide a rationale and detailed description; a model example from an actual protocol; and relevant references supporting its importance. We strongly recommend that this explanatory paper be used in conjunction with the SPIRIT Statement. A website of resources is also available (www.spirit-statement.org). The SPIRIT 2013 Explanation and Elaboration paper, together with the Statement, should help with the drafting of trial protocols. Complete documentation of key trial elements can facilitate transparency and protocol review for the benefit of all stakeholders.

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Figures

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Fig 1 Example template for the schedule of enrolment, interventions, and assessments (recommended content can be displayed using other schematic formats)
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Fig 2: Flow of participants

References

    1. World Medical Association. WMA Declaration of Helsinki—ethical principles for medical research involving human subjects. 2008. www.wma.net/en/30publications/10policies/b3/index.html.
    1. Pildal J, Chan A-W, Hróbjartsson A, Forfang E, Altman DG, Gøtzsche PC. Comparison of descriptions of allocation concealment in trial protocols and the published reports: cohort study. BMJ 2005;330:1049. - PMC - PubMed
    1. Hróbjartsson A, Pildal J, Chan A-W, Haahr MT, Altman DG, Gøtzsche PC. Reporting on blinding in trial protocols and corresponding publications was often inadequate but rarely contradictory. J Clin Epidemiol 2009;62:967-73. - PubMed
    1. Chan A-W, Hróbjartsson A, Haahr MT, Gøtzsche PC, Altman DG. Empirical evidence for selective reporting of outcomes in randomized trials: comparison of protocols to published articles. JAMA 2004;291:2457-65. - PubMed
    1. Scharf O, Colevas AD. Adverse event reporting in publications compared with sponsor database for cancer clinical trials. J Clin Oncol 2006;24:3933-8. - PubMed

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