[en] Due to the high variability inherent of experimental recipients, validating biological methods is often a complex exercise, and following ICH Q2R1 recommendations is not always feasible and/or meaningful. Linking systematic error and random error to obtain a unique criterion, as defined in ISO guideline, could be of interest to capture the total variability in biological assays. In this paper, the use of Total Error concept in the validation of biological assays was for the first time investigated and compared to a conventional interpretation of the ICH guideline. Both decision methodologies concluded that the assay was valid from 2.13 to 5.83 log(10)(CCID(50)/ml). However, only the Total Error approach using accuracy profile as decision tool allowed to guarantee that accurate and reliable results will be obtained during the future routine application of the assay. In addition, the risk to obtain out of acceptance limits results was estimated using this approach and was found out to be at the most 3.1% irrespective of the concentration level, thus demonstrating the reliability of the biological assay.
Disciplines :
Chemistry
Author, co-author :
Gibelin, N.
Dupont, Danielle ; Centre Hospitalier Universitaire de Liège - CHU > HOSPITALISATION - S.I. CORONAIRES (SI -2D)
Imbert, S.
Rozet, Eric ; Université de Liège - ULiège > Département de pharmacie > Chimie analytique
Language :
English
Title :
Use of Total Error concept in the validation of viral activity in cell cultures.
Publication date :
2009
Journal title :
Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
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