If I was involved in a clinical trial I would like to support the study as clinical investigator. As others fellow students alluded to the clinical investigator’s primary responsibility is to ensure the research expectations are met including regulatory requirements and guidelines for Good Clinical Practices. This role stood out to me as it contributes to generalizable knowledge advancement while protecting the rights and welfare of human participants. Also, I would to add that all roles are important, but perhaps the participant’s role are mostly important (healthy volunteers or participants with an illness or disease) that despite potential risks choose to engage in a study to help others and contribute to moving science forward.