Qingyu Zeng Ph.D.
Fellow Scientist and Technical Director, Scientific Insights Lab
三月 23, 2020
The sealing performance of the CCS is both time- and temperature-dependent and is determined by its structure and component material properties. The CCS sealing performance inherently will change while undergoing both time and temperature transitions. Exposure to lower temperature has a significant impact on CCS sealing performance, in particular, its container closure integrity (CCI) results. This is critical, as good CCI results are needed to maintain product sterility and stability. Any breach could lead to oxygen, carbon dioxide, moisture or microbiological ingress and, consequently, could risk both drug product integrity and patient safety.
These points are discussed in the recent publication by Q. Zeng, A. Bucci, and L. Ho. Time Temperature Superposition Evaluation and Modeling for Container Closure System’s Seal Performance at Low Temperatures. PDA J. Pharm. Sci. Technol., 74 (1), 27-40 (2020). Both experimental and modeling results clearly demonstrate that exposure to low temperatures results in a decrease in sealing force within a CCS. Understanding these physical phenomena enables development of components and processes that can meet the challenge of ensuring good CCS sealing performance, and concomitant good CCI, at such low temperatures.
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