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Related Experiment Videos

Considerations for peptic ulcer trials.

H Glise, B Hallerbäck, A Oden

    Scandinavian Journal of Gastroenterology. Supplement
    |January 1, 1987
    PubMed
    Summary
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    Planning peptic ulcer drug trials requires careful consideration of patient numbers. Factors like treatment comparison and study aims influence sample size, ranging from dozens to thousands, ensuring reliable results.

    Area of Science:

    • Gastroenterology
    • Clinical Trial Design
    • Pharmacoeconomics

    Background:

    • Peptic ulcer disease treatment necessitates rigorous clinical trial planning.
    • Accurate sample size calculation is critical for valid trial conclusions.
    • Multicenter trials require specific patient number guidelines per site.

    Purpose of the Study:

    • To outline essential considerations for planning drug trials in peptic ulcer treatment.
    • To emphasize the importance of early and accurate sample size calculations.
    • To guide the presentation of results for enhanced interpretability.

    Main Methods:

    • Determining sample size based on comparison type (active vs. active, active vs. placebo).
    • Considering the study's objective (equaling treatments vs. detecting a specific difference).

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  • Incorporating the number of comparison groups and the need for interim analyses.

    • Main Results:

    • Sample size requirements can vary significantly, from dozens to thousands of patients.
    • Multicenter trials necessitate defined minimum patient numbers per site.
    • A robust reporting system is essential for multicenter studies.

    Conclusions:

    • Careful planning, including early sample size estimation, is crucial for valid peptic ulcer drug trial conclusions.
    • Confidence intervals are recommended for presenting treatment differences, particularly in smaller studies, to mitigate the risk of erroneous findings.