A Comparative Study on the Lot Release Systems for Vaccines as of 2016
2017
Many countries have already established their own vaccine lot release system that is designed for each country's situation: while the World Health Organization promotes for the convergence of these regulatory systems so that vaccines of assured quality are provided globally. We conducted a questionnaire-based investigation of the lot release systems for vaccines in 7 countries and 2 regions. We found that a review of the summary protocol by the National Regulatory Authorities was commonly applied for the independent lot release of vaccines, however, we also noted some diversity between countries, especially in regard to the testing policy. Some countries and regions, including Japan, regularly tested every lot of vaccines, whereas the frequency of these tests was reduced in other countries and regions as determined based on the risk assessment of these products. Test items selected for the lot release varied among the countries or regions investigated, although there was a tendency to prioritize the potency tests. An understanding of the lot release policy may contribute to improving and harmonizing the lot release system globally in the future.
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