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All plasma products are not created equal: Characterizing differences between plasma products.

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Summary

Different plasma products show significant variations in cellular content, microparticles, and hemostatic function. These differences in fresh frozen plasma (FFP), liquid plasma (LP), solvent detergent plasma (SDP), and spray-dried SDP may impact transfusion efficacy and safety.

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Area of Science:

  • Transfusion Medicine
  • Hematology
  • Biochemistry

Background:

  • Plasma manufacturing involves multiple methods, with limited comparative studies on product quality.
  • Product quality parameters are crucial for ensuring transfusion efficacy and patient safety.

Purpose of the Study:

  • To compare quality parameters across four plasma products: fresh frozen plasma (FFP), liquid plasma (LP), solvent detergent plasma (SDP), and spray-dried solvent detergent-treated plasma (SD-SDP).
  • To assess the impact of storage time on these parameters.

Main Methods:

  • Analysis of 10 samples per product at multiple storage time points.
  • Measurement of red blood cell, platelet, and white blood cell counts.
  • Assessment of microparticle phenotypes, thrombin generation, and thrombelastography.

Main Results:

  • SDP and SD-SDP had fewer residual cells; LP had the most platelets, and FFP had the most red blood cells.
  • LP and FFP showed elevated microparticle counts, primarily platelet-derived, while SDP and SD-SDP had negligible counts.
  • Thrombin generation was higher in SDP and SD-SDP, with less variability compared to FFP and LP.

Conclusions:

  • Variations in cellular, microparticle, and hemostatic parameters among plasma products may influence efficacy and safety.
  • Further research is required to understand the immune effects of cellular/microparticle differences and clinical implications of altered thrombin generation in SD products.