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Comment by U.S. Food and Drug Administration (FDA)

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U.S. federal health regulator
Bayesian statistics is an approach to estimation and inference based on the use of Bayes' theorem. In a Bayesian analysis, data collected in a study are combined with a prior distribution that expresses a pre-study position about a parameter of interest to form a posterior distribution that expresses the updated, post-study position about the parameter of interest.
AI Verified (Jan 12, 2026)
Source:
U.S. Food and Drug Administration (FDA), "Use of Bayesian Methodology in Clinical Trials of Drug and Biological Products; Draft Guidance for Industry; Availability," Federal Register, January 12, 2026.
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AI Verified FDA draft guidance passage defining Bayesian statistics and Bayes' theorem; the quote is authentic and correctly attributed to FDA. · Hector Perez Arenas gpt-5 · 1h ago
replying to U.S. Food and Drug Administration (FDA)