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Related Experiment Videos

The need for trial identifiers.

Elizabeth Wager1

  • 1Sideview, Princes Risborough, UK. liz@sideview.demon.co.uk

Current Medical Research and Opinion
|March 10, 2004
PubMed
Summary
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Publication bias and duplicate reporting distort medical literature, impacting evidence-based guidelines. Identifying all clinical trials in publications could improve systematic reviews and meta-analyses.

Area of Science:

  • Medical Literature Analysis
  • Clinical Trial Management
  • Evidence-Based Medicine

Background:

  • Publication bias, duplicate publication, and under-reporting of clinical trials distort the medical literature.
  • These issues create significant problems for systematic numbering systems.
  • The integrity of systematic reviews and meta-analyses, crucial for evidence-based guidelines, is compromised.

Purpose of the Study:

  • To review various schemes for identifying clinical trials and their associated publications.
  • To highlight the impact of trial identification on the reliability of medical literature.
  • To propose solutions for enhancing the value of medical literature and the robustness of systematic reviews.

Main Methods:

  • Review of existing trial identification schemes.
Keywords:
Biomedical and Behavioral Research

Related Experiment Videos

  • Analysis of the impact of publication bias and duplicate publications.
  • Examination of the role of trial registers and unique trial identifiers.

    • Main Results:

    • Current identification methods are insufficient to combat publication distortions.
    • Inconsistent trial identification leads to unreliable systematic reviews and meta-analyses.
    • A comprehensive system for identifying all trials is lacking.

    Conclusions:

    • Implementing robust trial identification systems is essential.
    • Mandating the inclusion of trial identifiers in all publications is recommended.
    • This will enhance the value of medical literature and strengthen evidence-based medicine.