alexa A Case Study On Manufacturing Issues During Processing Of A Lyophilized Drug Product
ISSN: 0975-0851

Journal of Bioequivalence & Bioavailability
Open Access

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Joint Event: 3rd International Conference on Biopharmaceutics and Biologic Drugs & 5th International Pharmacy Conference
August 31-September 01, 2017 Philadelphia, USA

Shyam B Mehta
Teva Pharmaceuticals, USA
Keynote: J Bioequiv Availab
DOI: 10.4172/0975-0851-C1-029
Abstract
Purpose: Despite the popularity and advent of liquid formulations for biological therapeutic products, lyophilized presentations continue to be a robust alternative, especially for products in early stages of development or with in-adequate liquid stability. In this context, there continues to be on-going interest in the pharmaceutical industry about understanding potential failure modes and mitigations for lyophilized products. Here we present a real-life case study of observations of product on stopper for a lyophilized product and provide further analysis if this constitutes only a cosmetic/pharmaceutical elegance issue or can potentially be product quality impacting. The primary failure modes that were the focus of this investigation were potentially improper protein recovery during reconstitution and/or sterility concerns due to container closure integrity compromise. In this context, we also discuss potential mitigations. Methods: Filling of product in vials was carried out using a peristaltic pump filling unit and subsequently the product was lyophilized. Post lyophilization, upon visual inspection, around 40% of vials had cosmetic defect with residual product around stopper of the vial and the remaining 60% vials with no cosmetic defect were called acceptable vials. Within the product group that had product on stopper, there were different degrees of this event observed. Hence for this evaluation, the lyophilized vials with the worst-case product on stopper profiles were evaluated along with acceptable vials. Testing performed were protein concentration (UV absorbance at 280), residual moisture (Karl Fischer), sterility (membrane filtration) and container closure integrity (using blue dye ingress). Results & Conclusion: Product quality attributes such as sterility, residual moisture, protein concentration was also similar between the two groups of vials. However, container closure integrity of the product on stopper vials was compromised due to the presence of product around stopper of the vial. The results of this study provide two important findings: Defects such as product on stopper under certain worst-case conditions may pose product quality concerns and not just cosmetic quality concerns, and Container closure integrity test methods may be more sensitive in such cases compared to sterility, which also explains the regulatory agencies preference for this method for assessing sterility assurance. As an outcome of this investigation, the following corrective actions were implemented for this case: use of larger sized vial that can potentially mitigate the product handling issues.
Biography

Shyam B Mehta has completed his PhD in Pharmaceutical Sciences with expertise in areas specific to Biologic drugs. His work focuses on drug product development, fill-finish manufacturing of drug product, formulation development including protein stability and biophysical characterization of protein molecules.

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