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Raw Material Considerations for the Manufacture of Cell-Based Therapies
Jennifer N Solomon1, Mike Jones2, Lynn Csontos2
1STEMCELL Technologies, Vancouver, BC, Canada. jennifer.solomon@stemcell.com.
Abstract:
Cell-based therapies are rapidly advancing as a promising approach for treating blood-based cancers and other unmet clinical needs. As the pace of development and commercialization of the therapies increases, regulatory scrutiny on the materials and processes used in their manufacturing intensifies. This chapter focuses on raw materials-also known as ancillary materials-that come into direct contact with the cell product during manufacturing but are not present in the final therapeutic product. Examples include: cell culture media, supplements, enzymes, cryopreservation agents, buffers, and antibodies. The selection and qualification of these materials are critical to ensuring the quality, safety, consistency, and efficacy of the final cell product. Raw materials vary in grade and composition, and their suitability for use in cell therapy manufacturing must be rigorously evaluated and continuously reassessed through a risk-based approach throughout clinical development. This chapter also examines the regulatory landscape for raw materials, noting the lack of specific regulations but highlighting guidance from key regional and international organizations. Given the variability in raw material quality and labeling, developers and suppliers need to collaborate closely to qualify materials for their intended use. The chapter concludes by outlining the regulatory considerations and risks involved in raw material selection, providing case studies that offer practical insights from real-world experiences.
Insights
Selecting and qualifying raw materials, such as cell culture media and supplements, is crucial for the safety and efficacy of cell-based therapies. A risk-based approach and collaboration are key to navigating regulatory expectations for these essential manufacturing components.
Area of Science:
- Biotechnology
- Cell Therapy Manufacturing
- Regulatory Science
Background:
- Cell-based therapies are emerging as a significant treatment modality for various diseases, particularly blood cancers.
- Increased development and commercialization necessitate stringent regulatory oversight of manufacturing processes and materials.
- Ancillary materials, though not in the final product, directly contact cells during manufacturing, impacting product quality.
Purpose of the Study:
- To examine the critical role of raw materials (ancillary materials) in cell therapy manufacturing.
- To highlight the importance of rigorous selection, qualification, and risk-based assessment of these materials.
- To review the current regulatory landscape and challenges associated with ancillary materials.
Main Methods:
- Literature review of regulatory guidance and industry best practices.
- Analysis of the impact of ancillary material variability on cell product quality.
- Case study examination of real-world raw material selection challenges and solutions.
Main Results:
- Ancillary materials like media, supplements, enzymes, and cryopreservation agents require thorough evaluation for suitability.
- A risk-based approach and continuous reassessment are essential due to variability in raw material grade and composition.
- Close collaboration between developers and suppliers is vital for effective material qualification.
Conclusions:
- The selection and qualification of ancillary materials are paramount for ensuring the quality, safety, consistency, and efficacy of cell-based therapeutics.
- Navigating the evolving regulatory environment for raw materials requires a proactive and collaborative strategy.
- Understanding regulatory considerations and associated risks is critical for successful cell therapy development.
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