In the pharmaceutical industry and other life science settings, any equipment, system, or process that drifts outside its validated parameters can cause defective products, which can cause issues with product quality and patient safety.
Validation for equipment is carried out through IQ, OQ, and PQ in order to provide documented evidence that they reliably and consistently meets a set of pre-defined acceptance criteria. In this article, we will discuss each of these protocols so your business can remain up to speed on validation requirements.
A Quick Guide to IQ, OQ, and PQ
IQ, OQ, and PQ protocols prove that the equipment you’re using will consistently meet quality and regulatory requirements.
- IQ (Installation Qualification) – Confirms equipment has been installed correctly and complies with the approved design and manufacturers recommendation.
- OQ (Operational Qualification) – Confirms equipment operates properly within defined operating ranges.
- PQ (Performance Qualification) – Verifies and documents that the equipment can perform reliably and effectively in the intended use, based on the approved process method and product specification.
Each stage builds upon the others.
You can think of this like testing a car: IQ checks the engine was fitted correctly, OQ checks it drives as the manual describes, and PQ checks it handles real roads in real weather.
Why is IQ, OQ, and PQ Validation Important?
IQ, OQ, and PQ are important as they mitigate the risks that come with unqualified equipment, including:
- Product quality issues
- Failed batches
- Regulatory observations
- Production downtime
- Patient safety concerns
- Compliance risks
Qualification helps organisations demonstrate control over their equipment and is a core part of GMP and GxP environments, as the manufacturer must show documented evidence that equipment performs as intended.
Here are some examples of equipment that typically undergo qualification:
- Autoclaves
- Freeze dryers
- Temperature-controlled storage areas
- Depyrogenation systems
- Manufacturing equipment
- Laboratory instruments
IQ, OQ, and PQ Explained
IQ, OQ, and PQ are different methods and protocols for demonstrating that equipment being used or installed provides a high degree of quality assurance, ensuring the production process consistently manufactures products that meet quality standards.
Installation Qualification (IQ)
Installation Qualification typically takes place after the equipment has arrived onto site. It is preceded by FAT/SAT, and Design Qualification (DQ). Following this, IQ is carried out to verify that the equipment has been set up to the manufacturer’s specifications.
IQ typically covers:
- Verification against engineering drawings
- Equipment identification checks
- Utility verification
- Wiring and pipework inspections
- Materials of construction review
- Calibration verification
- Documentation review
- SOP verification
- Safety documentation checks
Operational Qualification (OQ)
OQ begins after IQ is complete, with all IQ protocols being met. OQ’s purpose is to determine whether the performance of the equipment is consistent with user requirements and specifications within the manufacturer’s operating ranges. Operational Qualification involves tests without the product where any electrical/mechanical/pneumatic/hydraulic components are assessed to verify correct operation.
OQ typically covers:
- Alarm testing
- Safety interlock verification
- Control system checks
- Sensor verification
- Automated sequence testing
- Upper and lower operating limit testing
- Functional testing of mechanical and electrical components
Performance Qualification (PQ)
The final step in validation is PQ. Here, the qualification and validation team verifies and documents that the equipment can perform reliably and effectively in the intended use, based on the approved process method and product specification. During this stage, worst-case load sizes for products are determined alongside tests covering the whole operating range.
PQ typically includes:
- Tests using production materials, qualified substitutes or simulated products/ items proven to have equivalent behaviour under normal operating conditions with worst-case batch sizes/conditions.
- Worst-case load evaluations
- Repeated qualification runs
- Sampling and analysis
Which Equipment, Systems, or Processes Require IQ, OQ and PQ?
IQ, OQ, and PQ are required for any processes, systems, and equipment that impact product quality, patient safety, or data integrity in FDA-regulated or GMP-certified industries, including:
- Manufacturing equipment – such as filling lines, mixing vessels, and packaging systems
- Sterilisation equipment – such as autoclaves, depyrogenation ovens, and depyrogenation tunnels
- Laboratory equipment – such as incubators, stability chambers, and analytical instruments
- Temperature-controlled systems – such as cold rooms, warehouses, and refrigerators
When do You Need Validation Specialists?
Experienced validation engineers can help streamline projects, reduce delays, and ensure documentation meets regulatory expectations. At BPV, we provide qualification services across the full equipment lifecycle, including IQ, OQ, and PQ for a wide range of equipment used within regulated environments.
If you’re looking for validation experts, contact us today for more information or to book a consultation.