03.12.24 -- FDA's CBER Issues Final Guidance For CAR T Cell Products

The ASTM E55 Cleaning Team, in collaboration with F04 Medical Device Committee members, felt that the commonly used three-level criticality system was inadequate for use in a science- and risk-based standard for cleaning process development, validation, and monitoring. This article will provide a detailed discussion of how science-based and data-driven criticality levels were derived, the meaning of each level, and how they can be used for guiding the selection of risk reduction and risk control measures.

The FDA issued the final guidance document, Considerations for the Development of Chimeric Antigen Receptor (CAR) T Cell Products, on January 29. This article shares a useful and thorough summary of the guidance and where it differs (or not) from the earlier draft version of the guidance.