Sub-I (The Sub-Investigator)

A Sub-Investigator (Sub-I) is a member of the clinical research team who assists the Principal Investigator (PI) in conducting a clinical trial. The Sub-I has specific delegated responsibilities, such as conducting medical evaluations, overseeing participant safety, and ensuring protocol adherence. The Sub-I is an essential part of the study team and contributes to the successful execution of the trial.

Back to Glossary