What is change control, and how does it apply to QC methods or instruments?

What is change control, and how does it apply to QC methods or instruments?

• A. Informal notes about modifications
• B. A formal process to manage changes to methods, reagents, instruments; requires risk assessment, validation/verification, and documentation
• C. Purchasing new equipment with no assessment
• D. Abolishing older methods without risk assessment

Answer: (B)

Change control is a formal, documented process used to manage any modification to QC methods, reagents, equipment, or related systems. It ensures changes are evaluated for risk, tested, and approved before being used in routine testing. In QC, this means performing a risk assessment to understand potential impacts on accuracy, precision, detection limits, and data integrity; validating or verifying the change to demonstrate that the method or instrument still performs as intended; and recording all steps, tests, approvals, and implementation details for traceability. This approach protects data quality and regulatory compliance by preventing unintended consequences from changes such as software updates, new reagents, or instrument modifications. Informal notes, unassessed purchases, or removing older methods without a proper risk assessment fail to safeguard reliability and compliance.

Change control is a formal, documented process used to manage any modification to QC methods, reagents, equipment, or related systems. It ensures changes are evaluated for risk, tested, and approved before being used in routine testing. In QC, this means performing a risk assessment to understand potential impacts on accuracy, precision, detection limits, and data integrity; validating or verifying the change to demonstrate that the method or instrument still performs as intended; and recording all steps, tests, approvals, and implementation details for traceability. This approach protects data quality and regulatory compliance by preventing unintended consequences from changes such as software updates, new reagents, or instrument modifications. Informal notes, unassessed purchases, or removing older methods without a proper risk assessment fail to safeguard reliability and compliance.