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Evaluation and validation of a single-dilution potency assay based upon serology of vaccines containing diphtheria toxoid: analysis for consistency in production and testing at the laboratory of the Control of Biological Products of the RIVM

Synopsis

A single-dilution assay can be a valid procedure to demonstrate that a product exceeds the minimal requirement given for potency provided that consistency in production and testing has been proven. Information is presented justifying the use of a single dilution assay based upon quantitative responses for establishing the potency of diphtheria toxoid vaccines. Data of 27 multi-dilution assays on the diphtheria toxoid component of DPT-polio vaccines were retrospectively analysed for consistency in production and testing. Criteria for analysis are given and a protocol for quality assurance of a single dilution assay based upon serology is discussed.

 

Home / Documenten en publicaties / Evaluation and validation of a single-dilution potency assay based upon serology of vaccines containing diphtheria toxoid: analysis for consistency in production and testing at the laboratory of the Control of Biological Products of the RIVM

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