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Notice2025-21864

Monoclonal Antibodies: Streamlined Nonclinical Safety Studies; Draft Guidance for Industry; Availability

Primary source

Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.

Published
December 3, 2025

Issuing agencies

Health and Human Services DepartmentFood and Drug Administration

Abstract

The Food and Drug Administration (FDA or Agency) is announcing the availability of a draft guidance for industry entitled "Monoclonal Antibodies: Streamlined Nonclinical Safety Studies." The draft guidance provides recommendations for streamlined approaches to assess long-term safety from monoclonal antibodies that recognize a single molecular target (referred to as monospecific antibodies); describes when general toxicology studies are not warranted or may be limited to a short-term study; and addresses reproductive, developmental, and juvenile toxicity assessments. When finalized, the guidance is intended to assist sponsors in avoiding unnecessary use of animals, particularly non-human primates (NHPs), in furtherance of the 3R principles of reducing, refining, and replacing the use of animal testing.

Indexed from Federal Register on December 3, 2025.

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