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Challenges and opportunities in PK assay using volumetric absorptive microsampling

  • 1.  Challenges and opportunities in PK assay using volumetric absorptive microsampling

    Community Leadership
    Posted 01-12-2023 12:32

    To promote the discussion, I capture several notes below:

    Volumetric absorptive microsampling (VAMS) is a promising technique for pharmacokinetic (PK) studies, but it does come with some challenges that need to be addressed.

    • Sample handling and preservation: VAMS samples are typically stored at room temperature, but this can lead to potential degradation or alteration of the samples, which can affect the accuracy of the PK data.
    • Not all laboratories have the equipment to analyze VAMS samples, and there are currently no established standards for handling and analyzing VAMS samples.
    • Since VAMS samples are collected in small volumes, the precision and accuracy of the PK data obtained from the samples may be lower than that obtained from traditional methods.
    • Comparison to traditional methods: VAMS method is not yet widely accepted.
    • The regulatory perspectives on VAMS are unclear.


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    Mark Ma Ph.D.
    Exe. Director
    Alexion Pharma
    New Haven CT
    [email protected]

    Disclaimer: Opinions expressed are solely my own and do not express the views or opinions of my employer.
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