VICH GL26 (BIOLOGICALS: MOISTURE) April 2002 For implementation at Step 7 - Final TESTING OF RESIDUAL MOISTURE Recommended for Implementation on April 2002 by the VICH Steering Committee THIS GUIDELINE HAS BEEN DEVELOPED BY THE APPROPRIATE VICH EXPERT WORKING GROUP AND WAS SUBJECT TO CONSULTATION BY THE PARTIES, IN ACCORDANCE WITH THE VICH PROCESS. AT STEP 7 OF THE PROCESS THE FINAL DRAFT IS RECOMMENDED FOR ADOPTION TO THE REGULATORY BODIES OF THE EUROPEAN UNION, JAPAN AND USA. C:\Temp\IECache\OLKBA\Gl26_st7.doc - FOR IMPLEMENTATION AT STEP 7 (FINAL) – 11/04/02 Page 1 of 4 Secretariat : c/o IFAH, rue Defacqz, 1 - B - 1000 Bruxelles (Belgium) - Tel. +32-2-541.01.11, Fax +32-2-541.01.19 e-mail:
[email protected] – Internet: http:\\vich.eudra.org TABLE OF CONTENTS INTRODUCTION 1. Objective of Guideline 2. Scope of the Guideline 3. Background 4. General Principal PROPOSED GUIDELINE 1. Definition of samples to be used for testing 2. General Test procedure C:\Temp\IECache\OLKBA\Gl26_st7.doc - FOR IMPLEMENTATION AT STEP 7 (FINAL) – 11/04/02 Page 2 of 4 INTRODUCTION 1) Objective of Guideline Freeze-dried veterinary vaccines always contain some water, commonly known as residual moisture (RM). It is important to determine the level of RM in final products, since a satisfactory test gives assurance of an adequate shelf life and that the manufacturer’s freeze-dry cycle was properly controlled. The RM test should confirm that moisture level is consistently within the manufacturer’s specification. This document provides a guideline on the general requirements for residual moisture testing.