Abstract
Validation of bioanalytical methods is crucial, especially in the pharmaceutical industry, to determine their suitability for specific purposes and the accuracy of analytical results. The pseudovirion-based neutralization assay (PBNA) is considered the gold standard for detecting and quantifying neutralizing antibodies against human papillomavirus in vaccine development for disease prevention. This paper introduces an improved triple-color PBNA method, capable of simultaneous detection of two or three human papillomavirus (HPVtypes for use in the development of a 14-valent HPV vaccine candidate. The primary objective was to comprehensively validate the triple-color PBNA method for general vaccine immunogenicity assays. Results show that the method has good specificity, accuracy, precision, linearity, robustness, and applicability. This innovative triple-color PBNA offers an improved approach for large-scale immunogenicity assessment in vaccine development. This study lays a solid foundation that can serve as a guiding paradigm for assessing vaccine responses in preclinical and clinical phases, providing valuable insights to the field.
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