HealthFebruary 14, 2024|UpdatedSeptember 16, 2024

7 clean room guidelines to know for USP 797 

Chapter 797 of the United States Pharmacopeia (USP) outlines the correct procedures and requirements for preparing compounded sterile preparations (CSPs).

It establishes standards and provides guidelines for any healthcare setting engaged in the compounding of sterile products. Failure to adhere to safe CSP practices may result in harm, including death, to patients, attributable to factors such as microbial contamination, variability in ingredient strength, the use of substandard ingredients, or unintended chemical or physical contaminants.

USP 797 sets out a roadmap for achieving CSP control, which starts with good environmental design and engineering. Still, the human factor is critically important. Properly trained and competent employees are the key to CSP integrity and safety.

There are many detailed sections of USP 797. Let's address the clean room, a critically important area in USP compliance. Here are 7 USP 797 clean room guidelines that you and your staff must understand and follow.

1. Follow personnel cleaning and garbing procedures

Before entering the buffer area or the segregated compounding area (SCA), personnel must do the following to ensure effective fit of personal protective equipment and minimize the risk of contaminating the compounding environment:

  • Remove any personal garments that do not meet the local cleanroom requirements
  • Remove cosmetics
  • Remove jewelry from hands, wrists, and any other visible body areas
  • Remove nail polish and products
  • Remove earbuds or headphones and leave any electronic devices not needed for compounding outside of the compounding area
  • If worn, wipe eyeglasses with a suitable cleaner

2. Wear proper garb

Anyone entering the compounding area must wear low-lint shoe covers, face masks, hair covers and gowns, and sterile gloves. All garb must be sterile if performing category 3 compounding. Perform hand hygiene as described in facility standard operating procedures.  These steps are important because compounding personnel are the greatest source of microbial and particulate contamination.

Solutions

Simplifi 797®

Take the guesswork out of USP medication compounding compliance with a customizable, mobile, evidence-based solution.

Simplifi 797 provides the latest evidence-based guidance and helps navigate the complex USP Chapters 795, 797 and 800 processes to ensure inspection confidence and keep patients and staff safe.

3. Wipe down products before bringing into the clean room

Use a sporicidal disinfectant, EPA-registered disinfectant, or sterile 70% isopropyl alcohol (IPA) to wipe down any products entering the clean room.  Personnel must wear gloves during this process and disinfectant agents must be allowed to dwell for sufficient contact time before moving products into the compounding area.  These practices reduce bioburden and microbial contamination on supplies used for compounding. 

4. Perform cleaning at appropriate frequency

The entire compounding environment, which includes the clean rooms and ante-rooms or the SCA, must be cleaned and disinfected daily on days when compounding occurs. This includes floors, pass-through chambers, and frequently touched work surfaces outside the hood. Additionally, ceilings, walls, shelving, and bins must be cleaned monthly. Sporicidal disinfectants must be applied at least monthly throughout the hoods and rooms. Sterile disinfectant and sporicidal agents are required for cleaning within the hoods. Pay attention to cleaning and disinfecting supplies, such as wipers, pads, and mop heads which must be low-lint, and disposable if possible.

If cleaning tools are reusable, they must be dedicated for use within specific areas, not removed from classified areas or the SCA, and constructed from cleanable materials (avoiding porous materials like wood). 

5. Adopt USP 797 facility/engineering clean room guidelines

Ensure that your facility has a modern clean room environment. Install HEPA filters in the ceiling; evaluate the condition of walls and repair any dents or dings; replace floors with seamless vinyl flooring, ensuring the juncture between the floor and the walk is caulked and sealed. All surfaces must be maintained in good condition and resistant to damage from frequent cleaning applications.

Consider designing access doors to operate in a hands-free manner. This ensures a seamless and efficient transition between these spaces while minimizing the need for manual contact with the doors. When possible, pass-through chambers should be interlocking to prevent both sides from being opened at the same time. 

6. Understand your certification report

All classified areas, including the hood, must be recertified every 6 months.  This report includes validation of the air quality and airflow within the compounding area and is a key indicator that your cleanroom is in good working order. In the event something is out of specification, determine a corrective action plan and ensure follow-up occurs and is documented.

7. Implement a web-based software system to ensure USP 797 compliance

Make staff training and competency and compliance documentation more seamless by investing in an easy-to-use web-based pharmacy compliance system that helps staff achieve and maintain USP 797 compliance.

Explore Simplifi 797 Pharmacy Compliance
Annie Lambert
Clinical Program Manager for Compliance Solutions
Compliance Solution Clinical Program Manager Annie Lambert, PharmD, BCSCP is committed to providing up-to-date USP content and expert compliance guidance, and to work with you to optimize the use of our Simplifi+ pharmacy compliance solutions.
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