Clean in Place CIP Processes

industry satandard usp 643Bioreactors are used in the biologics industry for growing cells to be used for drug manufacturing. They create a wonderful environment for cell or virus growth, but could also be a good place for bacteria and other harmful materials to grow. Keeping the bioreactor environment clean is critical to reduce cross contamination, ensure drug purity and prevent carry-over of drug product from batch-to-batch. Regulators insist that, where possible, bioreactors need to be cleaned in place (CIP) after production.

Due to the cells, viruses, or other materials that can be grown in a bioreactor, this biologic “soup” needs to be contained as much as possible. It could easily grow/spread or cross contaminate production lines if brought outside of the cleanroom environment. As a result, bioreactors are cleaned where they are, or cleaned in place (CIP).

CIP is achieved in a couple different ways, either the bioreactor is on wheels and rolled to a wall cleaning unit, or a cleaning unit is brought over to the bioreactor. The drug manufacturer will have developed a program of cleaning including cleaning agents, acids, a series of rinses with PW and/or WFI, and a final TOC check. After a technician has performed the cleaning program they conduct a final TOC check to ensure there is no organic material left in the bioreactor. If the cleaning is not executed there could be a higher concentration of the drug per mL in the bioreactor due to carryover from the previous batch. CIP is the final test to make sure the cleaning worked and no future batches will be affected by a previous.

  • CIP systems can be fully or semi-automated to require minimal operator intervention
  • Parameters such as time, action, concentration (of cleaning agents) and temperature (TACT) determine CIP process outcomes
  • Carefully controlling TACT parameters—and documentation for process validation and product-batch release—help ensure consistent success of CIP protocols
  • Automating QC processes for CIP systems (e.g., monitoring total organic carbon in the final rinse water) can help speed up the release of the vessels back into production and avoid production delays

References
1. Good Practice Guide: Ozone Sanitization of Pharmaceutical Water Systems, ISPE. July, 2012. https://ispe.org/publications/guidance-documents/ozone-sanitization-pharmaceutical-water-systems

Products for CIP Processes

ANATEL PAT700

Use the PAT700 for fast on-line testing of final rinse in validated CIP programs
QbD1200 TOC Analyzer

QbD1200

Use the QbD1200 during CIP program development, validation, and/or for final rinse grab sample analysis for validated CIP programs

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