Process Validation
1. Process Design: The commercial process is defined during this stage based on knowledge gained through process development activities.
2. Process Qualification: During this stage, the process design is confirmed as being capable of reproducible commercial manufacturing. Including qualification of the facility, utilities and equipment.
3. Continued Process Verification: Maintenance, continuous verification, and process improvement. On-going assurance that routine production process remains in a state of control. Assessed by collecting and monitoring information during commercialization.
Continued Process Verification
Once established, the equipment qualification status must be maintained through:
- Routine monitoring
- Maintenance
- Calibration procedures and the data should be assessed periodically to determine whether re-qualification should be performed
The process qualification stages covers:
- Design of the facility and qualification of equipment
- Performance qualificatio
- PPQ protocol
Process Design
Stage 1 output:
- Verification/determination of the limits for the critical process parameters.
- The limits/process boundary have been validated.
- Knowledge of process variable is gained, enabling the establishment of control strategy.