Under monitoring guidance, which statement correctly describes the 5.18.1 purpose?

• A. Monitors are appointed by the sponsor
• B. The purposes of trial monitoring include protecting the rights and well-being of subjects, ensuring the data are accurate, and ensuring compliance with the protocol and GCP
• C. Monitoring is optional
• D. Monitors must be employees of regulatory authorities

Answer: (B)

Under monitoring guidance, the purpose is to safeguard the rights and well-being of study participants, ensure that the trial data are accurate and reliable, and confirm that the trial is conducted, recorded, and reported in accordance with the protocol, GCP, and applicable regulatory requirements. These three aims—protecting subjects, ensuring data integrity, and verifying compliance—together define why monitoring is carried out. In practice, this means checking that informed consent is properly obtained and maintained, safety monitoring is in place, data entries and source documents are accurate, and any protocol deviations are identified and handled per procedures. This description best matches how monitoring is intended to function. The idea that monitoring is optional is incorrect, since monitoring is required to uphold trial quality and participant protection. Likewise, monitors are not required to be employees of regulatory authorities; they are appointed by the sponsor and can be internal or external, focusing on ensuring the trial adheres to the protocol and GCP rather than on regulatory staff roles.