Protocol for a systematic review of N-of-1 trial protocol guidelines and protocol reporting guidelines

Antony J. Porcino, Salima Punja, An Wen Chan, Richard L Kravitz, Aaron Orkin, Philippe Ravaud, Christopher H. Schmid, Sunita Vohra

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Background: N-of-1 trials are multiple cross-over trials done in individual participants, generating individual treatment effect information. While reporting guidelines for the CONSORT Extension for N-of-1 trials (CENT) and the Standard Protocol Items: Recommendations for Interventional Trials (SPIRIT) already exist, there is no standardized recommendation for the reporting of N-of-1 trial protocols. Objective: The objective of this study is to evaluate current literature on N-of-1 design and reporting to identify key elements of rigorous N-of-1 protocol design. Methods: We will conduct a systematic search for all N-of-1 trial guidelines and protocol-reporting guidelines published in peer-reviewed literature. We will search Medline, Embase, PsycINFO, CINAHL, the Cochrane Methodology Register, CENTRAL, and the NHS Economic Evaluation Database. Eligible articles will contain explicit guidance on N-of-1 protocol construction or reporting. Two reviewers will independently screen all titles and abstracts and then undertake full-text reviews of potential articles to determine eligibility. One reviewer will perform data extraction of selected articles, checked by the second reviewer. Data analysis will ascertain common features of N-of-1 trial protocols and compare them to the SPIRIT and CENT items. Discussion: This systematic review assesses recommendations on the design and reporting of N-of-1 trial protocols. These findings will inform an international Delphi development process for an N-of-1 trial protocol reporting guideline. The development of this guideline is critical for improving the quality of N-of-1 protocols, leading to improvements in the quality of published N-of-1 trial research.

Original languageEnglish (US)
Article number132
JournalSystematic Reviews
Volume6
Issue number1
DOIs
StatePublished - Jul 6 2017
Externally publishedYes

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Clinical Protocols
Guidelines
Quality Improvement
Cross-Over Studies
Cost-Benefit Analysis
Databases
Research

Keywords

  • Clinical protocols
  • Guidelines
  • N-of-1 trials
  • Single case experimental designs
  • Systematic review

ASJC Scopus subject areas

  • Medicine (miscellaneous)

Cite this

Protocol for a systematic review of N-of-1 trial protocol guidelines and protocol reporting guidelines. / Porcino, Antony J.; Punja, Salima; Chan, An Wen; Kravitz, Richard L; Orkin, Aaron; Ravaud, Philippe; Schmid, Christopher H.; Vohra, Sunita.

In: Systematic Reviews, Vol. 6, No. 1, 132, 06.07.2017.

Research output: Contribution to journalArticle

Porcino, Antony J. ; Punja, Salima ; Chan, An Wen ; Kravitz, Richard L ; Orkin, Aaron ; Ravaud, Philippe ; Schmid, Christopher H. ; Vohra, Sunita. / Protocol for a systematic review of N-of-1 trial protocol guidelines and protocol reporting guidelines. In: Systematic Reviews. 2017 ; Vol. 6, No. 1.
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