Abstract
All products labeled as sterile are required to be free of microbial contamination throughout their shelf life (obligatory critical quality attribute). Container closure integrity (CCI) needs to be addressed with a holistic life cycle strategy comprising adequate primary packaging components selection and the assessment of critical unit operations and critical process parameters (CPPs) according to quality by design (QbD) principles. The helium leak method is currently the most sensitive CCI test method and preferably used for the initial container closure system (CCS) qualification and characterization studies. Currently, two different measuring principles are used in the pharmaceutical industry, and no data is available in the public domain for typical method performance parameters such as accuracy, precision, intermediate-precision, and limit of quantification of the method. Furthermore, the performance of different types and sizes of artificial leaks as well as certified helium leak standards have not yet been characterized across different test laboratories. In this multicompany study, we shared 17 artificially prepared leak samples using the most common types of artificial leaks in relevant nominal size ranges that are commercially available or can be easily prepared in a laboratory. Each participating company generated results according to their in-house methods, applying their established test parameters as the aim of the study was not to create a standard for helium leak measurements, but to compare real-world performance between different laboratories. Consequently, this study is not an interlaboratory study using the same test method across laboratories.
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More From: PDA journal of pharmaceutical science and technology
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