Which term refers to the operational techniques and activities undertaken within the quality assurance system to verify that requirements for quality of trial-related activities have been fulfilled?

• A. Randomization
• B. Source Data
• C. Regulatory Authorities
• D. Quality Assurance

Answer: (D)

Quality assurance refers to the systematic, planned set of activities designed to ensure that all trial-related activities meet predefined quality requirements. It includes audits, process improvements, adherence to standard operating procedures, training, supplier oversight, and corrective and preventive actions, all aimed at verifying compliance and preventing quality problems throughout the study. This is different from randomization, which is about assigning participants to treatment groups; from source data, which are the original records of data; and from regulatory authorities, which are external bodies that oversee compliance.