AI Article Synopsis
- The study focuses on measuring the number and characteristics of particles in parenteral therapeutic protein formulations, which is crucial for safety and effectiveness.
- A flow cytometer with advanced detection features was used to count subvisible particles in monoclonal antibody formulations, capable of sensing particles as small as 1 μm and requiring minimal sample volumes.
- The method also allows for distinguishing protein-based particles by using a fluorescent dye and is advantageous for pharmaceutical development due to its ability to analyze multiple samples quickly with a 96-well autosampler.
Article Abstract
The amount, identity, and size distribution of particles in parenteral therapeutic protein formulations are of immense interest due to potential safety and efficacy-related implications. In this communication, we describe the use of a flow cytometer equipped with forward- and side-scattering as well as fluorescence detectors, to determine the number of subvisible particles in monoclonal antibody formulations. The method appears to detect particles of size 1 μ and larger, requiring relatively small sample volumes to estimate subvisible particle counts. Additionally, it facilitates differentiation of proteinaceous particles after staining with a fluorescent hydrophobic dye. The method is expected to be particularly well suited for pharmaceutical development, because it provides increased throughput due to the use of a 96-well autosampler.
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| http://dx.doi.org/10.1002/jps.22414 | DOI Listing |
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