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CVM GFI #176 (VICH GL39) Specifications: Test Procedures and Acceptance Criteria for New Veterinary Drug Substances and New Medicinal Products: Chemical Substances

FinalCenter for Veterinary Medicine06/14/2006

Description

The quality of drug substances and medicinal products is determined by their design, development, in-process controls, GMP controls, and process validation, and by specifications applied to them throughout development and manufacture. This guidance addresses specifications, i.e., those tests, procedures, and acceptance criteria which play a major role in assuring the quality of the new veterinary drug substance and medicinal product at release and during shelf life. Specifications are an important component of quality assurance, but are not its only component. All of the considerations listed above are important to ensure consistent production of drug substances and medicinal products of high quality.

Scope & Applicability

Product Classes

10
New Veterinary Drug Substances

Subject of stability testing guidance

dry dosage form

Is the medicinal product a dry dosage form (e.g. solid oral or dry powder)?

non-sterile medicinal products

MICROBIOLOGICAL ATTRIBUTES OF NON-STERILE MEDICINAL PRODUCTS

immediate release

specific test conditions and acceptance criteria for immediate release

New veterinary medicinal product

pharmaceutical product type containing a new or existing drug substance

Extended Release

products formulated to make drug available over an extended period; appropriate acceptance ranges for extended release

Parenteral formulations

packaged in pre-filled syringes or autoinjector cartridges

Parenteral Medicinal Products

tests may be applicable to parenteral medicinal products

Oral liquids

specific tests will normally be applicable to oral liquids

New Medicinal Products

Specifications for New Veterinary Drug Substances and New Medicinal Products

Stakeholders

2
Manufacturer

Entity responsible for submitting NDINs

Pharmacopoeial Discussion Group

Group committed to achieving harmonization of procedures

Regulatory Context

Attributes

10
Particle size

Physical property of drug substance affecting manufacturability

pH

Intrinsic characteristic affecting the growth of L. monocytogenes; intrinsic characteristic used as a process control; parameter to monitor for control; Process control parameters such as pH; Used to define listeristatic formulations

Solubility

Property used in the decision tree for in-vitro testing

Residue depletion

Factor in determining particle size acceptance criteria.

Content uniformity

Measured using NIR results

Bioavailability

Biological property that may be altered by manufacturing changes; safety narrative should address bioavailability of the ingredients

Reconstitution time

criteria for parenteral products requiring reconstitution

Redispersibility

appropriate for injectable suspensions which settle on storage

Osmolarity

Physical attribute affecting mucosal integrity

Particle size distribution

Critical attribute impacting bioequivalence of locally acting TAMAs.

Identified Hazards

Hazards

1
Microbial contamination

risk in multidose drug products

Related CFR Sections (3)

Related Warning Letters (10)

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    Libby Laboratories, Inc.

    2025-07-08
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    Marshalls Traditional Healthcare CC

    2025-02-18
  • CGMP/Finished Pharmaceuticals/Adulterated

    Wittman Pharma, Inc.

    2024-09-24
  • CGMP/Finished Pharmaceuticals/Unapproved New Drug/Adulterated

    Aqualex Co., Ltd.

    2024-06-18
  • CGMP/Finished Pharmaceuticals/Adulterated

    Cosmobeauti Laboratories & Manufacturing Inc.

    2023-08-29
  • CGMP/Finished Pharmaceuticals/Adulterated

    Jamol Laboratories, Inc.

    2023-08-01
  • CGMP/Finished Pharmaceuticals/Adulterated

    Premier Nutra Pharma Inc.

    2023-05-09
  • Compounding Pharmacy/Adulterated Drug Products

    Nephron Pharmaceuticals Corporation dba Nephron Sterile Compounding Center, LLC

    2022-11-01
  • CGMP/Finished Pharmaceuticals/Adulterated

    Verde Cosmetic Labs LLC

    2022-08-16
  • Drug/Prepared, Packed or Held Under Insanitary Conditions/Adulterated

    Maison Terre, LLC

    2021-04-13

See Also (8)