GMP Monitoring in the Unit Dose Sector

What does a Unit Dose area mean for a GMP monitoring system, which parameters should be monitored, and what should be considered when using packaging systems?

Modern medication supply systems are capable of assembling, packaging, and labeling medications tailored to individual patients. This support for pharmacies (mostly in hospitals) is very important because the full effectiveness of a medication depends on its timely and correct dosing and administration. The shortage of personnel resources in hospitals further accelerates the implementation of these systems.

Through the Hospital Future Act (KHZG) and the associated funding opportunities, digitalization projects in the area of Unit Dose have increased significantly.

What does a Unit Dose area mean for a GMP monitoring system?

First of all, this area can be regarded like any other GMP-relevant production or processing area. This means that the classic environmental parameters must be recorded and monitored to ensure that the products meet the required quality, safety, and efficacy standards.

Which parameters should be monitored?

The classic/most important environmental parameters in GMP cleanrooms are:
– Room pressure (differential pressure)
– Room temperature / room humidity (air humidity)
– Possibly particle concentration (depending on cleanroom class)

Additionally, device temperatures are often monitored:
– Refrigerators
– Freezers

Alarm concept

To visualize alarms or limit violations, traffic lights with clearly visible signal colors (green/yellow/red) are suitable.

Furthermore, cleanroom personnel should be informed about any incorrect differential pressures before entering the cleanroom. Digital displays (panels) that show the current measurement value in the corresponding color (red/green) have proven effective for this purpose. Additionally, acoustic alarms (horns) can further enhance awareness.

What should be considered when using packaging systems?

When using blister machines, it is important to clarify with the respective manufacturer what options exist for integration into a monitoring system. Most manufacturers provide signal outputs for measurement values or malfunctions on their packaging systems, which can then be incorporated into the monitoring system.

Unit Dose as an extension of an existing cleanroom complex

Often, the Unit Dose system is an extension of an existing cleanroom complex. In this case, it makes sense to also connect and qualify this new area with the existing monitoring system.

Conclusion

The requirements in the cleanroom for Unit Dose areas can vary depending on the context and specific application. However, they can generally be regarded like any other GMP-relevant production or processing area. Therefore, installation or integration into a modern, flexible, GMP-compliant monitoring system is possible without any issues.