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CVM GFI #273 Defining Durations of Use for Approved Medically Important Antimicrobial Drugs Fed to Food-Producing Animals

DraftCenter for Veterinary Medicine09/26/2023

Description

In September 2018, FDA unveiled a 5-year action plan for supporting antimicrobial stewardship in veterinary settings.  This plan builds upon the important steps the Center for Veterinary Medicine (CVM) has already taken to support the judicious use of antimicrobials in animals, and is driven by the concept that medically important antimicrobial drugs should only be used in animals when necessary for the treatment, control, or prevention of specific diseases.  This plan includes an action item intended “to ensure that all medically important antimicrobial drugs used in the feed or drinking water of food-producing animals have an appropriately targeted duration of use.”

Scope & Applicability

Product Classes

9
Medically Important Antimicrobial Drugs

Antimicrobial drugs important to human medicine used in food-producing animals; Drugs administered in the feed of food-producing animals with undefined durations of use.; Establishing appropriately defined durations of use for all medically important antimicrobials.; Antimicrobial drugs important to human medicine administered in feed

Feed-use combination

Approved use of two or more active ingredients in animal feed

Type C medicated animal feed

Complete medicated feed containing a combination of new animal drugs

Type C medicated feed

Final medicated feed intended for consumption; Medicated feed intended for consumption as a complete feed; medicated feed intended for direct consumption by animals; Medicated feed intended for direct consumption by animals

Type B medicated feed

intermediate medicated feed; A medicated feed intended for further manufacture of another medicated feed.; Intermediate medicated feed; Intermediate medicated feed product; medicated feed intended for further mixing; Intermediate medicated feed used to manufacture Type C feed

Type A medicated article

used to manufacture medicated feed; A concentrated form of a drug used to manufacture medicated feed.; Concentrated drug form used to manufacture medicated feed; single ingredient component for medicated feed; Medicated feed mill license is required to manufacture a Type B or Type C medicated feed from a Category II, Type A medicated article.; Concentrated drug form for manufacturing medicated feed; Concentrated form of animal drug used to manufacture medicated feed; Type A medicated articles fo

Antimicrobial Drugs

Medically important antimicrobial drugs fed to food-producing animals

VFD products

Affected products are now VFD products requiring the oversight of a licensed veterinarian.

Type A medicated articles

Specific category of animal drug products

Stakeholders

6
Sponsor

Entity responsible for submitting applications under section 524B

VMF holder

The VMF holder should submit the appropriate labeling components.

pioneer sponsor

The original applicant of an approved NADA

Veterinarian

Professional providing oversight for antimicrobial drug use; Veterinarian is to determine the actual duration that the drug will be used; Professional ordering the duration of use for antimicrobial drugs

Animal drug sponsors

FDA provides recommendations to animal drug sponsors on revising product use conditions.

Licensed veterinarian

Professional authorized to issue a VFD order; Federal law restricts medicated feed containing this VFD drug to use by or on the order of a licensed veterinarian.

Regulatory Context

Attributes

7
Duration of Use

The length of time a drug is administered to animals; The defined timeframe for drug administration being established in labeling.

undefined duration of use

Labeling lacking information regarding duration of feeding

appropriately defined duration of use

Labeling information ensuring drug use only when needed

3-year exclusivity

Qualify the sponsor for 3-year exclusivity under section 512(c)(2)(F)(iii) of the FD&C Act.

VFD expiration date

Must not exceed 6 months after the date of issuance

Maximum permitted duration of use

The duration that cannot be exceeded for a single course of therapy.; Directions section should state the maximum duration of use permitted for a single course

Expected duration of use

The duration to be ordered by the veterinarian in accordance with labeled directions.

Identified Hazards

Hazards

1
Antimicrobial Resistance

Public 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

Related CFR Sections (9)

See Also (8)

CVM GFI #273 Defining Durations of Use for Approved Medically Important Antimicrobial Drugs Fed to Food-Producing Animals | Guideline Explorer | BioRegHub