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    Bayesian Trial Design

    Trial design that uses Bayesian statistics, often incorporating prior data from related studies or registries.

    Reviewed by Christian Espinosa, Founder, Blue Goat CyberLast reviewed May 5, 2026

    Definition

    Bayesian methods enable formal use of prior information (e.g., from pediatric extrapolation, OUS data, or historical controls) and continuous learning. Frequently used in device pivotal trials with limited recruitable populations.

    What this means in practice

    FDA's CDRH has decades of experience with Bayesian device approvals; the agency publishes specific Bayesian guidance for medical devices.

    Primary references

    3 sources
    Link health: 2 verified 1 bot-blocked· last checked 2026-05-09
    FDA·2NIH·1
    1. 1
      FDA Bayesian Devices Guidance
      Bot-blocked
      FDAfda.gov
    2. 2
      FDA - Clinical Trials and Human Subject Protection
      Verified
      FDAfda.gov
    3. 3
      ClinicalTrials.gov
      Verified
      NIHclinicaltrials.gov

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