Why should the Quality Assurance Unit operate independently from study conduct in GLP?

• A. To perform routine daily bench work.
• B. To sign off on all data without review.
• C. To replace the Study Director when needed.
• D. To provide unbiased audits, verify compliance, and report nonconformances.

Answer: (D)

Independent quality oversight is essential in GLP because it provides objective evaluation of how a study is conducted and documented. The QA unit’s role is to perform audits and inspections, verify that procedures, data collection, record-keeping, and reporting meet GLP standards and the study protocol, and to identify and report any nonconformances. This separation from those who conduct the study ensures findings are not biased by operational pressures or personal interests, so regulators and sponsors can trust that the data are generated and recorded with integrity, traceability, and compliance.

QA reviews include study plans, deviations, training records, equipment calibration and qualification, and data integrity of raw data and reports. When issues are found, they document them and trigger corrective and preventive actions. This authority and independence prevent situations where data could be signed off without proper review, routine bench work is performed by QA, or QA steps in as a substitute for the Study Director.