Journal
REGENERATIVE MEDICINE
Volume 8, Issue 1, Pages 39-48Publisher
FUTURE MEDICINE LTD
DOI: 10.2217/RME.12.109
Keywords
automation; cost of goods; human embryonic stem cell; manufacture; process control; response surface methodology; scalability
Categories
Funding
- UK Engineering and Physical Sciences Research Council
- EPSRC Centre for Innovative Manufacturing in Regenerative Medicine
- EPSRC [EP/H028277/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/H028277/1] Funding Source: researchfish
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Aim: Commercial regenerative medicine will require large quantities of clinical-specification human cells. The cost and quality of manufacture is notoriously difficult to control due to highly complex processes with poorly defined tolerances. As a step to overcome this, we aimed to demonstrate the use of 'quality-by-design' tools to define the operating space for economic passage of a scalable human embryonic stem cell production method with minimal cell loss. Materials & methods: Design of experiments response surface methodology was applied to generate empirical models to predict optimal operating conditions for a unit of manufacture of a previously developed automatable and scalable human embryonic stem cell production method. Results & conclusion: Two models were defined to predict cell yield and cell recovery rate postpassage, in terms of the predictor variables of media volume, cell seeding density, media exchange and length of passage. Predicted operating conditions for maximized productivity were successfully validated. Such 'quality-by-design' type approaches to process design and optimization will be essential to reduce the risk of product failure and patient harm, and to build regulatory confidence in cell therapy manufacturing processes.
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