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Paper: Contamination Control Strategy Questions and Answers

Contamination Control Strategy (CCS) Questions

Industry experts Anna Campanella and Ugo Omeronyé of Particle Measuring Systems Contamination Control Advisory group post answers to questions asked during their webinar, “Considerations & Steps for Building a Contamination Control Strategy (CCS)“.

Question: Does CCS risk management using FMEA depend on historical data or experience and expectations?

Answer: Both, for different reasons. Remember that FMEA is a quantitative tool that weighs severity, occurrence and detectability. We need historical data to trend or estimate the likelihood of an event to understand the occurrence portion. Severity and detectability are defined by the consequences and alerts of failures, and requires additional interpretation from an experienced subject matter expert (SME) focused on science-based expectations.

Question: Is it required to monitor particle counts near a vibratory bowl of the aseptic filling machine? Due to vibration, particles may generate.

Answer: In my experience, yes. Most vibratory bowls are for feeding, sorting and orientation, so the introduction of a contaminant at this stage is relatively low, especially for an aseptic filling machine. However, it’s still necessary to capture particulate data. We can address the generated particles by revalidating for the appropriate alert and alarm limits of the particle counter in this particular area.

Question: What is the air classification of a vial sealing/capping area and what is the right location for a non-viable counter?

Answer: Vial sealing and capping take place in a Grade A classified area, and the best location for a non-viable counter is where the highest risk of contamination has been determined through a quality risk assessment (QRA). In this assessment, we need to consider the sterile surfaces, sterile equipment, personnel, and product when identifying the risk. If the capping area is inside an isolator or a part of the filling line, this area is classified as Grade A. If the crimping machine is in Grade C with unidirection airflow, this is a Grade A Supply area. According to Annex 1, Grade A air supply is air that’s passed through a filter that capable of producing Grade A non-viable quality air. However, there’s no requirement to perform continuous nonviable monitoring or meet Grade A viable monitoring limits, and the area itself is not classified. The area is used explicitly to protect fully stoppered vials where the cap has not been crimped and the equipment and engineering systems directly impact product quality.

In sum, the QRA should assess the correct position of the particle counter according to the process and design of the area.

Question: What are the recommendations for the L-R Method using particle detection in aseptic processing?

Answer: The L-R method could be very useful, but it only allows you to see the sampling point trend. For the new filling line, the fluid dynamical studies help to see all possible impacts for contamination. These impacts are not direct, but carried by the turbulence generated above all inside the insulators.

Question: There is not any necessity for the pyroginity of the product. How can we issue the pyroginity for contamination of APIs, the system and/or the finished products? How can we certify the appropriateness of the suit? Is there any requirement for it?

Answer: For sterile API and finished product, it is necessary to evaluate the presence of endotoxins with the LAL test. The appropriate suit must be defined based on the production process and the operators’ comfort. It must be certified by the manufacturer with low particle release and must be sterile. From a microbiological point of view, each operator must be qualified for the dressing procedure by defining critical sampling points.

Get answers to all questions asked during this webinar by completing the form. 

Want an expert to help you build your Contamination Control Strategy?

Contact our Contamination Control Advisory Team.

Related Materials

Considerations & Steps for building a Contamination Control Strategy (CCS)

Viable Monitoring Solutions to Prepare Your Contamination Control Strategy (CCS) for Annex 1 FAQ

Viable Monitoring Solutions to Prepare Your Contamination Control Strategy (CCS) for ANNEX 1

Compressed Gas Microbial Contamination Monitoring & Contamination Control Strategy

Cleanroom Contamination Control Advisory Services during Covid

Three Core Events to Establish Environmental Contamination Control – Per EU GMP Annex 1

Data Quality – The Journey of Cleanroom Data Management Life Cycle

Continuous Viable Air Monitoring per Annex 1 Draft, Rev 12

 

Contamination Control Strategy Live Q&A Event

Contamination Control Advisory Services

Ready to Build Your Contamination Control Strategy?

Contact our Contamination Control Advisory Team today.

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T. +1 303-443-7100
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E. [email protected]

Keep in touch! Receive industry news from us:

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