Author Archives: Carole Langlois

Integrity Redefined: Consistent Robustness and Integrity Testing Lead to Enhanced Process Integrity and Patient Safety

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With the increasing adoption of single-use systems (SUS) in critical stages of biopharmaceutical manufacturing, any lack of system integrity can significantly affect drug product quality and patient safety, as well as incur additional costs due to product loss and disrupted production cycle. This article from Sartorius Stedim Biotech, describes how determining the correlation between liquid leakage and microbial ingress can be used to define MALLs (Maximum Allowable Leakage Limits) of SUS for different process steps. The article also details the…

May 15, 2019

Ensuring the Integrity of Single-Use Containers: Providing Robustness, Science, and Helium-Based Technology with a Detection Limit of 2 μm

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Identifying the greatest defect size, both for liquid leaks and microbial ingress, is a fundamental step toward protecting the integrity of single-use systems (SUS) under real process conditions. Integrity testing of such systems may become a prerequisite in the future because they are used in the most critical process steps, with detection limits correlating to liquid leaks and microbial ingress. Such testing guarantees the sterility of drug substances and drug products packaged in single-use systems and, therefore, enhance patient safety.…

April 19, 2018

Exploring the Science Behind Single-Use Container–Closure Integrity Assurance

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Failures in the integrity of single-use systems during commercial manufacturing can cause a number of serious problems for biomanufacturers. A loss of system integrity during processing can allow environmental contaminants that can be dangerous for patients (e.g., microbes) to enter a process. Biopharmaceuticals and their intermediates can be highly potent or even infectious agents, so an integrity failure can jeopardize the safety of operators. In severe cases when biomanufacturers cannot ensure the quality of drug products for fear of a…

December 11, 2017

Outsourcing to Enhance Assurance of Supply: Application of Counterintuitive Supply Chain Strategies — A Case Study

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Single-use technologies have transformed biopharmaceutical manufacturing by providing tremendous and proven opportunities to reduce costs, improve flexibility, and shorten cycle times. The expansion of such technologies into commercial production has naturally raised new challenges for both end users and suppliers, thus driving the need for a critical look at risks associated with their use. End users now face a new challenge: how to assess their own supply chains for robust assurance of supply. What is the suppliers’ responsibility in addressing…

May 17, 2016

Enhanced Assurance of Supply for Single-Use Bags: Based on Material Science, Quality By Design, and Partnership with Suppliers

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Growing adoption of single-use bags in commercial production of biopharmaceutical drugs raises new challenges for bag suppliers and drives the need for consistent product quality, improved assurance of supply, robust change management, and business continuity planning. In close collaboration with resin and film suppliers, polymer scientists and biologists at Sartorius Stedim Biotech have followed a stringent material science and quality by design (QbD) program to develop a completely new polyethylene film and to achieve consistent performance of new Flexsafe bags…

September 23, 2014