Uncertainty Assessment of Determination of Human Coagulation Factor Content in Recombinant Human Coagulation Factor for Injection by APTT Method

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  • Beijing Institute for Drug Control Key Laboratory for Safety Research and Evaluation of Innovative Drug
    NMPA Beijing Key Laboratory for Analysis and Biological Evaluation of Traditional Chinese Medicine Beijing 102206, China

Received date: 2024-08-26

  Accepted date: 2025-03-14

  Online published: 2025-07-23

Abstract

Objective: To establish an evaluation method for the uncertainty of human coagulation factor Ⅷ content in recombinant human coagulation factor Ⅷ for injection.Method: The determination of human coagulation factor Ⅷ content was carried out using the import registration standard JS20210052. At the same time according to the relevant provisions of JJF1059.1-2012 "Evaluation and Expression of Uncertainty in Measurement" a mathematical model of uncertainty for the determination of human coagulation factor Ⅷ was established and the sources of uncertainty were analyzed and evaluated.Results: The sources of uncertainty in the content of human coagulation factor Ⅷ mainly include preparation of reference solution CV), preparation of test solution VS), measurement repeatability of test sample SS and standard curve of reference sample Ci. The combined uncertainty of the determination of human coagulation factor Ⅷ content in recombinant human coagulation factor Ⅷ for injection by activated partial thromboplastin time APTT method is 0.880 17 IU·mL-1 and the expanded uncertainty is 1.760 34 k=2 confidence probability is 95%.Conclusion: The contribution to the uncertainty in determination of human coagulation factor Ⅷ contene in recombinant human coagulation factor Ⅷ for injection mainly comes from the preparation of the test solution and the standard curve of the standard substance while the uncertainty contribution of the weighing and preparation of the reference sample is not significant in this experiment and can be ignored. This study quantified the uncertainty of this analytical method and the established method is suitable for evaluating the uncertainty of the APTT method for determining the content of human coagulation factor Ⅷ in recombinant human coagulation factor Ⅷ for injection.


Cite this article

LI Shuang, XIAO Siting, CAO Chunran .

Uncertainty Assessment of Determination of Human Coagulation Factor Content in Recombinant Human Coagulation Factor for Injection by APTT Method

[J]. CHINESE JOURNAL OF MEDICINAL GUIDE, 2025 , 27(5) : 528 -532 . DOI: magtech.2024.08.26-00001

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