Reporting of noninferiority and equivalence randomized trials for major prostaglandins: A systematic survey of the ophthalmology literature
2008

Quality of Reporting Noninferiority and Equivalence Trials in Glaucoma

Sample size: 47 publication Evidence: moderate

Author Information

Author(s): Eyawo Oghenowede, Lee Chia-Wen, Rachlis Beth, Mills Edward J

Primary Institution: Faculty of Health Sciences, Simon Fraser University

Hypothesis

What is the reporting quality of prostaglandin noninferiority and equivalence trials in the treatment of glaucoma?

Conclusion

The quality of reporting noninferiority/equivalency trials in the field of glaucoma is markedly heterogeneous.

Supporting Evidence

  • 36% of the trials were crossover designs.
  • Only 6% of studies reported results for both ITT and PP populations.
  • 72% of studies adequately described their margin of noninferiority/equivalence.

Takeaway

This study looked at how well trials for glaucoma treatments reported their methods and results, and found that many did not follow the best practices.

Methodology

A systematic survey of the literature was conducted to identify noninferiority and equivalence randomized clinical trials involving glaucoma drugs of prostaglandin origin.

Potential Biases

Potential bias due to reliance on reported data without verification from trial authors.

Limitations

The study relied on the reporting of specific items rather than contacting trial investigators for missing information.

Statistical Information

Confidence Interval

95% CI: 24–51

Digital Object Identifier (DOI)

10.1186/1745-6215-9-69

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