1
|
Viviani L, Balks E, Beken S, Brady AM, Clayton R, Cliquet F, Desmayanti L, Fragoeiro S, Hamtak TJ, John D, Jungbaëck C, Kalaivani M, Kross I, Lang C, Ria Isriyanthi NM, Mallet L, Milne C, Rubbrecht M, Siklódi B, Singh B, Srinivas GB, Stickings P, Stirling C, Sundram P, Szabó M, Thomas A, van den Berg M, Walker A, Philippe C, Vandeputte J. 3Rs implementation in veterinary vaccine batch-release testing: Current state-of-the-art and future opportunities. A webinar and workshop report. Biologicals 2023; 83:101695. [PMID: 37516084 DOI: 10.1016/j.biologicals.2023.101695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/20/2023] [Accepted: 07/14/2023] [Indexed: 07/31/2023] Open
Abstract
Regulatory authorities require veterinary batch-release testing to confirm vaccine potency and safety, but these tests have traditionally relied on large numbers of laboratory animals. Advances in vaccine research and development offer increasing opportunities to replace in vivo testing, and some stakeholders have made significant progress in incorporating 3Rs elements in quality control strategies. A three-part event series entitled "3Rs Implementation in Veterinary Vaccine Batch-Release Testing: Current state-of-the-art and future opportunities" was jointly organized by the Animal-Free Safety Assessment Collaboration, HealthforAnimals, and the International Alliance of Biological Standardization. Two webinars and a workshop aimed to outline the state-of-the-art non-animal approaches for veterinary batch-release testing. The events included information on the state of the deletion of obsolete safety testing and the current initiatives implemented by European, North American, and Asian-Pacific stakeholders on 3Rs implementation and regulatory acceptance. The events contributed to a better understanding of the barriers to 3Rs implementation. Participants highlighted the need for open communication, continued collaboration between stakeholders, and international harmonization of regulatory requirements to help accelerate acceptance. Despite the challenges, the countries represented at this three-part event have shared their commitments to advancing the acceptance of alternative methods.
Collapse
Affiliation(s)
- Laura Viviani
- SciethiQ, under contract with Humane Society International, Basel, Switzerland.
| | - Elisabeth Balks
- Paul-Ehrlich-Institut, Langen, Germany; European Medicines Agency (EMA), Brussels, Belgium
| | - Sonja Beken
- European Medicines Agency (EMA), Brussels, Belgium; Belgian Federal Agency for Medicines and Health Products (FAMPH), Brussels, Belgium
| | - Anna-Maria Brady
- Subject Matter Expert at European and British Pharmacopoeia, London, United Kingdom
| | | | - Florence Cliquet
- Agence Nationale de Sécurité Sanitaire de l'alimentation, de l'environnement et du Travail (French Agency for Food, Environmental and Occupational Health & Safety), ANSES-Nancy, France
| | | | | | | | | | - Carmen Jungbaëck
- International Alliance for Biological Standardization Europe (IABS), Geneva, Switzerland
| | - M Kalaivani
- Indian Pharmacopoeia Commission, Ghaziabad, India
| | - Imke Kross
- MSD Animal Health, Boxmeer, the Netherlands
| | - Catherine Lang
- European Directorate for the Quality of Medicines & HealthCare (EDQM), Council of Europe, Strasbourg, France
| | | | - Laurent Mallet
- European Directorate for the Quality of Medicines & HealthCare (EDQM), Council of Europe, Strasbourg, France
| | - Catherine Milne
- European Directorate for the Quality of Medicines & HealthCare (EDQM), Council of Europe, Strasbourg, France
| | | | | | | | | | - Paul Stickings
- Medicines and Healthcare Products Regulatory Agency (MHRA), London, UK; National Institute for Biological Standards and Control (NIBSC), Potters Bar, Hertfordshire, UK
| | | | | | - Mária Szabó
- World Organization for Animal Health, Paris, France
| | - Anne Thomas
- Zoetis Belgium SA, Ottignies-Louvain-la-Neuve, Belgium
| | | | - Angela Walker
- US Department of Agriculture (USDA)- APHIS, Riverdale, MD, USA
| | | | - Joris Vandeputte
- International Alliance for Biological Standardization Europe (IABS), Geneva, Switzerland
| |
Collapse
|
2
|
Volokhov DV, Fry AM, Furtak V, Jones RM, Musiychuk K, Norikane J, Green BJ, Srinivas GB, Streatfield SJ, Yusibov V. An ELISA-based antigenicity test of rabies recombinant glycoprotein cannot predict its protective potency in vivo. Mol Cell Probes 2022; 63:101815. [DOI: 10.1016/j.mcp.2022.101815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 03/18/2022] [Indexed: 11/15/2022]
|
3
|
Walker A, Srinivas GB. Opportunities and strategies to further reduce animal use for Leptospira vaccine potency testing. Biologicals 2013; 41:332-7. [PMID: 23891496 DOI: 10.1016/j.biologicals.2013.06.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Revised: 06/17/2013] [Accepted: 06/18/2013] [Indexed: 10/26/2022] Open
Abstract
Hamsters are routinely infected with virulent Leptospira for two purposes in the regulation of biologics: the performance of Codified potency tests and maintenance of challenge culture for the Codified potency tests. Options for reducing animal use in these processes were explored in a plenary lecture at the "International Workshop on Alternative Methods for Leptospira Vaccine Potency Testing: State of the Science and the Way Forward" held at the Center for Veterinary Biologics in September 2012. The use of validated in vitro potency assays such as those developed by the U.S. Department of Agriculture for Leptospira (L.) canicola, Leptospira grippotyphosa, Leptospira pomona, and Leptospira icterohaemorrhagiae rather than the Codified hamster vaccination-challenge assay was encouraged. Alternatives such as reduced animal numbers in the hamster vaccination-challenge testing were considered for problematic situations. Specifically, the merits of sharing challenge controls, reducing group sizes, and eliminating animals for concurrent challenge dose titration were assessed. Options for maintaining virulent, stable cultures without serial passage through hamsters or with decreased hamster use were also discussed. The maintenance of virulent Leptospira without the use of live animals is especially difficult since a reliable means to maintain virulence after multiple in vitro passages has not yet been identified.
Collapse
Affiliation(s)
- A Walker
- Center for Veterinary Biologics, Animal and Plant Health Inspection Service, United States Department of Agriculture, P.O Box 844, Ames, IA 50010, USA.
| | | |
Collapse
|
4
|
Srinivas GB, Walker A, Rippke B. USDA regulatory guidelines and practices for veterinary Leptospira vaccine potency testing. Biologicals 2013; 41:298-302. [PMID: 23838570 DOI: 10.1016/j.biologicals.2013.06.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Accepted: 06/16/2013] [Indexed: 10/26/2022] Open
Abstract
Batch-release potency testing of leptospiral vaccines licensed by the United States Department of Agriculture (USDA) historically was conducted through animal vaccination-challenge models. The hamster vaccination-challenge assay was Codified in 1974 for bacterins containing Leptospira pomona, Leptospira icterohaemorrhagiae, and Leptospira canicola, and in 1975 for bacterins containing Leptospira grippotyphosa. In brief, 10 hamsters are vaccinated with a specified dilution of bacterin. After a holding period, the vaccinated hamsters, as well as nonvaccinated controls, are challenged with virulent Leptospira and observed for mortality. Eighty percent of vaccinated hamsters must survive in the face of a valid challenge. The high cost of the Codified tests, in terms of monetary expense and animal welfare, prompted the Center for Veterinary Biologics (CVB) to develop ELISA alternatives for them. Potency tests for other serogroups, such as Leptospira hardjo-bovis, that do not have Codified requirements for potency testing continue to be examined on a case-by-case basis.
Collapse
Affiliation(s)
- G B Srinivas
- Center for Veterinary Biologics, Animal and Plant Health Inspection Service, United States Department of Agriculture, P.O. Box 844, Ames, IA 50010, USA.
| | | | | |
Collapse
|