← REGULATORY CHANGES
FEDERAL REGISTER · NOTICEJanuary 12, 2026NOTICE — NO LEGAL EFFECT

Use of Bayesian Methodology in Clinical Trials of Drug and Biological Products; Draft Guidance for Industry; Availability

What this record is not

Document details are published in the U.S. Federal Register; SPEQ surfaces them for reference and is not affiliated with or endorsed by the FDA or the Office of the Federal Register. The authoritative text is on federalregister.gov.

Document type
Notice
Agency
Health and Human Services Department
Published
January 12, 2026
Comments close
March 13, 2026
Document number
2026-00325
ABSTRACT

The Food and Drug Administration (FDA or Agency) is announcing the availability of a draft guidance for industry entitled "Use of Bayesian Methodology in Clinical Trials of Drug and Biological Products." This document provides guidance on the appropriate use of Bayesian methods in clinical trials. The primary focus is on the use of Bayesian methods to support primary inference in pivotal clinical trials designed to support the effectiveness and safety of drug and biological products.

Abstract as published in the Federal Register.

READ THE FULL DOCUMENT

The complete document — every provision, the docket, and the comment instructions — is published in the Federal Register. SPEQ surfaces and indexes it for reference; the authoritative text lives on federalregister.gov.

View on federalregister.gov →

That is what FDA published. A free account files it on your watchlist and sends one weekly email with whatever lands next.

Create a free account