This paper shares industry feedback after the publication of two BioPhorum papers that complement ongoing efforts in the wider CGT field. It supplements these publications by delving into identity testing and cross-contamination for plasmid master cell banks and plasmid DNA, and other plasmid DNA release tests (including DNA homogeneity, residual DNA and host RNA, and sterility or bioburden).
Raw Materials Program
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This paper discusses the issues around trace elements and gives a suggested approach for developing a method for analyzing trace elements in cell culture media and hydrolysates. The approach is based on a ground breaking BioPhorum collaboration that shared blinded data and compared analytical methods between biopharmaceutical and media manufacturers.
Trace element variation for chemically defined cell culture media: biopharmaceutical industry requirements and cross-company collaboration to mitigate risks
A proactive risk-based approach to understanding key factors that can introduce product variability is necessary to avoid delays. One such factor identified is elemental impurity variability introduced by cell culture media. Though the impact of the variability will differ, it is important
that both manufacturers and supply partners understand the sources of elemental impurities and perform risk assessments to identify mitigation strategies. Such assessments will allow an understanding of the level of risk, and what steps may be taken to dissipate it. This paper is an effort to drive regulatory bodies, drug manufacturers, supply partners and N-1 suppliers toward a common understanding of the problem and possible solutions that can be taken towards risk mitigation. Though there may not be a single or ideal solution for this issue, a common rational approach can be taken by all parties to understand the impact on their processes and products, to drive identification of mitigation strategies.
Industry proposal for a simplified registration process of complex and innovative raw materials in Europe
This paper proposes a solution, applicable to all innovative and complex raw materials, to the challenges the biopharmaceutical industry faces with the registration of complex and innovative raw materials in Europe. The biopharmaceutical industry has designed a direct solution to the issue and identified a way to higher quality regulatory submissions, enhanced knowledge, understanding, control and robustness of its products and processes.
This guidance document identifies the relevant change areas, and for each area, exemplifies the type of changes which the biopharmaceutical industry needs to be informed about. It also lists the required information, in terms of supporting data and documentation, to support notification of changes. This guidance is relevant to all raw materials used to produce biopharmaceutical products, including but not limited to cell culture media, fermentation broth components, column resin, buffers, solvents, and excipients. By highlighting the changes biopharmaceutical industry end-users need to know about and specifying the information required, the intention of this industry-aligned guidance is to reduce the quantity of rework required and the time taken to process change requests. In turn, this will reduce variability in demand patterns as end-users refrain from building extensive inventories to mitigate against the perceived risks which arise from proposed changes. While complete alignment and standardization on the information which should be provided for changes is not possible, a more robust alignment on the typical information required, as set on in this guidance, will significantly improve the current state.
The purpose of this best practice guide is to provide key information and best practices for media supplier partners and companies in the biopharmaceutical industry on the design, development and controls for manufacturing of media and medium solutions to minimize potential variation that may impact product quality, process performance and operational efficiency and costs. It is intended that it can be used to support a proactive approach to evaluation and self-audit of internal processes.