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Investigator
Pronunciation
Definition 1
A researcher in a clinical trial or clinical study. (NCI Dictionary)
Definition 2
An individual who conducts scientific research. In a clinical setting this individual actually conducts and/or supervises the clinical investigation and study-related procedures. The investigator monitors the safety of the trial subjects and investigational staff (under whose immediate direction an agent is administered or dispensed to a subject). The investigator collects and analyses data and study documents, and provides reports in compliance with applicable requirements. (NCI Thesaurus)
Definition 3
A person responsible for the conduct of the clinical trial at a trial site. If a trial is conducted by a team of individuals at the trial site, the investigator is the responsible leader of the team and may be called the principle investigator. (NCI Thesaurus/CDISC)
Definition 4
A researcher in a study who oversees multiple aspects of the study, such as concept development, protocol writing, protocol submission for IRB approval, participant recruitment, informed consent, data collection, analysis, interpretation and presentation. (NCI Thesaurus/BRIDG)
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