This document provides an overview of VICH guidelines related to stability testing. It lists several VICH guidelines including GL3, GL4, GL5, GL8, GL45, GL51, and GL17. GL3 is identified as the parent guideline for stability testing of new drug substances and products. The document also defines key terms including new dosage form, medicated premix, and biotechnological/biological product as they relate to the scope and application of the VICH stability guidelines. It provides a high-level description of the structure and objectives of the VICH stability guidance documents.

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TRAINING MATERIAL – Quality Guidelines
GL n° Topic TITLE OF GUIDELINE Status
GL3 Stability Stability Testing of New Drug Substances and Products
Final
GL4 Stability Annex GL 3: Requirements for New Dosage Forms
GL5 Stability Stability Testing: Photostability Testing -Substances & Products
GL 8 Stability Stability Testing for Medicated Premixes
GL 45 Stability Bracketing and matrixing designs for stability testing
Final
GL 51 Stability Statistical evaluation of stability data
GL 10 Impurities Impurities in New Veterinary Drug Substances
Final
GL 11 Impurities Impurities in New Veterinary Medicinal Products
GL 18 Impurities Residual Solvents in VMPs, active substances and excipients
GL1
Validation
definitions
Validation of analytical procedures: definition and terminology
Drafted
GL2
Validation
methodology
Validation of analytical procedures: methodology
GL17 Stability bio Stability testing of new biotechnological /biological products [tbd/Bio]
GL39
Quality:
specifications
Test Procedures and Acceptance Criteria for new Drug Substances and
New Products: Chemical Substances
Tbd/
assigned
GL40
Quality: bio
specifications
Test Procedures and Acceptance Criteria for new
Biotechnological/Biological Veterinary Medicinal Products
[tbd/Bio]

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New VICH website coming soon

4. VICH Guidelines on stability:
OVERVIEW

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Disclaimer
These slides have been provided for training purposes only.
The presenter has made every attempt to ensure that they are
consistent with relevant VICH guideline(s).
As always, the original Guideline(s) should be used as the
primary source of information for working with regulators.

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VICH Stability guidance: objective
What is the objective of VICH stability guidelines?
 Provide guidance for conducting the stability studies of drug
substances or products to support a re-test period (drug substance),
a shelf life and recommended storage conditions.
 Define the stability data package for a new drug substance or
medicinal product that is sufficient for a registration application.
 Provide recommendations for the evaluation of stability data

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Structure of VICH Stability guidance:
Guidance on the stability studies to conduct
> What are the stability guidelines applicable to new drug substances
and new medicinal products according to their type?
PARENT GUIDELINE: VICH GL3
«Stability Testing of New Veterinary Drug Substances and Medicinal Products”
Further guidance for medicated
premixes:
VICH guideline GL 8
Further guidance for
biotechnological/biological products:
VICH guideline GL 17
Annex: guideline GL 4
«Requirements for New Dosage Forms “

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DEFINITIONS (1/3)
 New dosage form: a new dosage form is defined as a drug product
which is a different pharmaceutical product type, but contains the
same active substance as included in the existing drug product
approved by the pertinent regulatory authority.
Such pharmaceutical product types include products of different
administration route (e.g., oral to parenteral), new specific
functionality/delivery systems (e.g., immediate release tablet to
modified release tablet) and different dosage forms of the same
administration route (e.g. capsule to tablet, solution to suspension).

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DEFINITIONS (2/3)
> Medicated premix (Type A Medicated Article):
a medicated premix is a veterinary medicinal
product consisting of a mixture of one or more
drug substances, generally with a carrier, that is
prepared to facilitate oral administration of the drug
to animals when mixed with feed.

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DEFINITIONS (3/3)
Biotechnological/biological product (scope of
VICH GL17):
well-characterized proteins and polypeptides, and their
derivatives which are isolated from issues, body fluids, cell
cultures, or produced using recombinant deoxyribonucleic acid
(r-DNA) technology. The guideline does not cover antibiotics,
heparins, vitamins, cell metabolites, DNA products, allergenic
extracts, conventional vaccines, cells, whole blood, and cellular
blood components.

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Structure of VICH Stability guidance:
General methodology for protocols and data
analysis
> Where to find general recommendations for designing the protocol of
stability studies and evaluating data?
VICH GL3
(Parent guideline)
«Stability Testing of New
Veterinary Drug Substances
and Medicinal Products”
_________________________________
General principles for:
¤ Stress testing
¤ Selection of batches
¤ Design of stability studies
¤ Stability commitments
¤ Evaluation of data
¤ Statements/Labeling
VICH guideline GL 5: « Photostability Testing of New Drug
Substances and Products”
________________________________________________________________________________________________
¤ Testing equipment and protocol
¤ Stepwise procedure for photostability testing from the API to
the packaged drug product
VICH guideline GL 45: «Bracketing and matrixing
designs for stability testing of new veterinary drug substances
and medicinal products”
_______________________________________________________________________________________________
¤ Bracketing: methodology and interpretation of data
¤ Matrixing: methodology and interpretation of data
VICH guideline GL 51: «Statistical evaluation of data”
_______________________________________________________________________________________________
¤ Recommendations for use of statistical analysis
¤ Interpretation of stability data in accelerated and
intermediate conditions for extrapolation of data at the long-
term condition

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VICH stability guidelines – presentations available
# Title
GL 3
and
GL 4
Stability Testing of … Substances and … Products
and
Annex: Requirements for New Dosage Forms ()
GL 5
Stability Testing: Photo-stability Testing of New Drug
Substances and Products
GL 8 Stability Testing for Medicated Premixes
GL
45
Bracketing and matrixing designs for stability testing of
new veterinary drug substances and medicinal products
GL
51
Statistical evaluation of stability data
GL1
7
Stability testing of new biotechnological/biological
veterinary medicinal products

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