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An automated method for vacuum testing pharmaceutical vials.

V Wu, B Crist

    Journal of Parenteral Science and Technology : a Publication of the Parenteral Drug Association
    |July 1, 1989
    PubMed
    Summary
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    A novel automated vacuum tester effectively identifies defective lyophilized vials, preventing particulate contamination in sensitive protein products. This advanced method ensures product integrity during high-speed pharmaceutical manufacturing.

    Area of Science:

    • Pharmaceutical Manufacturing
    • Quality Control
    • Analytical Chemistry

    Background:

    • Traditional hand-held vacuum testers can cause particulate contamination in sensitive protein products.
    • Lyophilized vials require precise vacuum integrity testing to ensure drug stability and efficacy.

    Purpose of the Study:

    • To evaluate a new automated vacuum tester for lyophilized vials.
    • To assess the impact of automated testing on sensitive protein products.
    • To compare the automated tester's performance against traditional methods.

    Main Methods:

    • Utilized an automated vacuum tester applying high voltage, high frequency electric fields, and stroboscopic flash.
    • Tested conveyorized lyophilized vials at rates of 150-30 vials per minute.

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  • Measured false rejection rates and assessed particulate generation in protein products.

    • Main Results:

    • The automated tester achieved zero percent false rejections for vials with internal pressures < 62 Torr.
    • Automated testing (0.3-1.4 seconds exposure) prevented particulate formation in sensitive protein products.
    • Traditional methods showed excessive particulate generation upon extended contact.

    Conclusions:

    • The automated vacuum tester is a reliable and non-damaging method for quality control of lyophilized vials.
    • This technology enhances pharmaceutical product safety by minimizing particulate contamination.
    • Automated testing supports efficient, high-throughput manufacturing of sensitive biologics.