Description
The purpose of this document is to provide guidance to animal drug sponsors on specific areas of the approval process where the available scientific literature may be useful to support the approval of a new animal drug application (NADA), an abbreviated new animal drug application (ANADA), or a conditionally approved new animal drug application (CNADA), as well as methodologies to ensure the validity of conclusions drawn by animal drug sponsors from the scientific literature to support an approval.
Scope & Applicability
Product Classes
2The category of products covered by this guidance.
Subject of ANADA submissions
Stakeholders
3Entity responsible for submitting applications under section 524B
Entity responsible for submitting NDINs
Recommended for search term/strategy development and refinement.; Recommended role for design of literature search
Regulatory Context
Attributes
10The legal standard for proving a drug works; Legal standard required for drug approval
1=high risk of bias, 2=low risk of bias, 3=unclear risk
should be based on appropriate supportive stability data
Mass or units of activity per unit volume for fee assessment
Objective of showing response to intervention is superior to a comparator.
The degree of uncertainty can impact the critical quality attribute (CQA) risk ranking
Risk factor to be assessed during manufacturing changes
Variations in patient preferences even within the same disease state
adequate statistical power and accounting for planned analyses
Attributable, legible, contemporaneously recorded, original, and accurate
Identified Hazards
Hazards
6Public health threat resulting from loss of effectiveness of antimicrobial therapies; Efforts to mitigate the development of antimicrobial resistance.; Public health concern that labeling changes aim to mitigate.; development and spread of antimicrobial resistance encouraged by certain practices
Difference between the parameter to be estimated and the mathematical expectation of the estimator.
Systematic differences between baseline characteristics of compared groups.; Reporting study specific bias such as selection bias
Bias introduced when only selected outcomes are reported, including publication and citation bias.
Risk reduced by including non-publicly available studies
mitigate potential unwanted bias in learning or performance estimation
Related CFR Sections (4)
- 21CFR514.117§ 514.117 Adequate and well-controlled studies.
(a) Purpose. The primary purpose of conducting adequate and well-controlled studies of a new animal drug is to distinguish the effect of the new animal drug from other influences, such as spontaneous change in the course of the disease, normal animal production performance, or biased observation. OnRead full regulation →
- 21CFR58.3§ 58.3 Definitions.
As used in this part, the following terms shall have the meanings specified:Read full regulation →
- 21CFR514.4§ 514.4 Substantial evidence.
(a) Definition of substantial evidence. Substantial evidence means evidence consisting of one or more adequate and well-controlled studies, such as a study in a target species, study in laboratory animals, field study, bioequivalence study, or an in vitro study, on the basis of which it could fairlyRead full regulation →
- 21CFR514.1§ 514.1 Applications.
(a) Applications to be filed under section 512(b) of the act shall be submitted in the form and contain the information described in paragraph (b) of this section, as appropriate to support the particular submission. If any part of the application is in a foreign language, an accurate and complete ERead full regulation →
Related Warning Letters (9)
- 2025-08-26
Good Laboratory Practice (GLP) for Nonclinical Laboratory Studies
CCIC Huatongwei International Inspection Co., Ltd.
- 2025-08-26
Good Laboratory Practice (GLP) for Nonclinical Laboratory Studies
Jiangsu Kerbio Medical Technology Group Co.
- 2024-09-11
Investigational Device Exemptions (IDE)/Premarket Approval Application (PMA)
Mid-Link Testing Company, Ltd
- 2024-09-11
Investigational Device Exemptions (IDE)/Premarket Approval Application (PMA)
Sanitation & Environmental Technology Institute dba SDWH
- 2023-10-31
Good Laboratory Practice (GLP) for Nonclinical Laboratory Studies
Samm Solutions, Inc., d.b.a. BTS Research
- 2022-08-09
Bioresearch Monitoring Program
Valley Biosystems
- 2022-02-22
Good Laboratory Practice (GLP)
Toxikon Corporation/Labcorp Bedford LLC
- 2020-05-05
Good Laboratory Practice (GLP) for Nonclinical Laboratory Studies
University of Kentucky
- 2020-04-07
Good Laboratory Practice (GLP) for Nonclinical Laboratory Studies
Steiner Biotechnology, LLC
See Also (8)
- CVM GFI #204 Active Controls in Studies to Demonstrate Effectiveness of a New Animal Drug for use in Companion Animals (Status: Final)
- CVM GFI #265 Use of Data from Foreign Investigational Studies to Support Effectiveness of New Animal Drugs (Status: Final)
- CVM GFI #267 Biomarkers and Surrogate Endpoints in Clinical Studies to Support Effectiveness of New Animal Drugs (Status: Final)
- CVM GFI #61 Special Considerations, Incentives, and Programs to Support the Approval of New Animal Drugs for Minor Uses and for Minor Species (Status: Final)
- CVM GFI #176 (VICH GL39) Specifications: Test Procedures and Acceptance Criteria for New Veterinary Drug Substances and New Medicinal Products: Chemical Substances (Status: Final)
- CVM GFI #216 Chemistry, Manufacturing, and Controls (CMC) Information - Fermentation-Derived Intermediates, Drug Substances, and Related Drug Products for Veterinary Medicinal Use (Status: Final)
- CVM GFI #255 Elemental Impurities in Animal Drug Products Questions and Answers (Status: Final)
- CVM GFI #227 Chemistry, Manufacturing, and Controls (CMC) Technical Section Filing Strategies (Status: Draft)