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Research ArticleResearch

A Comparison of Protein Stability in Prefillable Syringes Made of Glass and Plastic

Lloyd Waxman and Vinod D. Vilivalam
PDA Journal of Pharmaceutical Science and Technology November 2017, 71 (6) 462-477; DOI: https://doi.org/10.5731/pdajpst.2016.007146
Lloyd Waxman
West Pharmaceutical Services, Exton, PA
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  • For correspondence: Lloyd.Waxman@westpharma.com
Vinod D. Vilivalam
West Pharmaceutical Services, Exton, PA
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Abstract

The development of protein therapeutics requires stabilization of these labile molecules during shipment and storage. Biologics, particularly monoclonal antibodies, are frequently packaged at high concentration in prefillable syringes traditionally made of glass. However, some biologics are unstable in glass due to sensitivity to silicone oil, tungsten, glue, or metal ions. Syringes made from the plastic cyclic olefin polymer, Daikyo Crystal Zenith® (CZ), with a Flurotec-laminated piston, have none of these issues. This study compared the stability of several proteins including biotherapeutics when stored up to 14 months at 5 °C and 25 °C in prefillable siliconized syringes made of glass or silicone oil-free CZ syringes, and when subjected to mild agitation by end-over-end rotation at room temperature. At each time point, proteins were analyzed by several techniques including turbidity, size exclusion high-performance liquid chromatography, reversed phase high-performance liquid chromatography, ion-exchange chromatography, electrophoresis, and light scattering to monitor changes in aggregation and degradation. The results show that proteins have comparable stability when stored in glass syringes or in syringes made of CZ sterilized by E-beam or autoclave. In addition, proteins stressed by agitation were generally more stable and aggregated less in syringes made of CZ than in ones made of glass.

LAY ABSTRACT: Biotherapeutic protein drugs such as monoclonal antibodies are frequently packaged at high concentration in prefillable syringes, which allows the drug to be directly administered by the patient or caregiver. Protein drugs, or biologics, can be unstable, and may aggregate, particularly when shaken. These aggregates can be immunogenic, stimulating the body's immune system to produce antibodies that can reduce the drug's efficacy. Although prefillable syringes are traditionally made of glass, some biologics are unstable in glass syringes due to the presence of substances used in their manufacture, including silicone oil, which is necessary for lubricity. Syringes made from the plastic cyclic olefin polymer, Daikyo Crystal Zenith® (CZ), have none of these issues. This study compared the stability of several biotherapeutic proteins when stored up to 14 months at 5 °C and 25 °C in prefillable siliconized syringes made of glass or silicone oil-free CZ syringes, and when mildly agitated at room temperature. Proteins were analyzed by several techniques to detect changes in aggregation and degradation. The results show that biotherapeutic proteins have similar stability whether stored in syringes made of glass or CZ. In addition, proteins subjected to agitation were generally more stable and aggregated less in CZ syringes than in glass syringes.

  • Prefillable syringe
  • Silicone oil
  • Tungsten
  • Crystal Zenith
  • CZ
  • Protein aggregation
  • Biotherapeutic protein
  • Protein stability
  • © PDA, Inc. 2017
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PDA Journal of Pharmaceutical Science and Technology: 71 (6)
PDA Journal of Pharmaceutical Science and Technology
Vol. 71, Issue 6
November/December 2017
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A Comparison of Protein Stability in Prefillable Syringes Made of Glass and Plastic
Lloyd Waxman, Vinod D. Vilivalam
PDA Journal of Pharmaceutical Science and Technology Nov 2017, 71 (6) 462-477; DOI: 10.5731/pdajpst.2016.007146

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A Comparison of Protein Stability in Prefillable Syringes Made of Glass and Plastic
Lloyd Waxman, Vinod D. Vilivalam
PDA Journal of Pharmaceutical Science and Technology Nov 2017, 71 (6) 462-477; DOI: 10.5731/pdajpst.2016.007146
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Keywords

  • prefillable syringe
  • Silicone oil
  • Tungsten
  • Crystal Zenith
  • CZ
  • Protein aggregation
  • biotherapeutic protein
  • Protein stability

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