Principle Investigator

Leads research within therapeutic area (according to study protocol, based on CPT or CPT comparable)

Coordinating Investigator

Leads & oversees research across multiple geographical and therapeutic areas

Leading Investigator

Leads & oversees research across multiple therapeutic areas

Sub-Investigator

Same as #3, works with PI on various clinical trials

Collaborating Investigator

Pre-screen patient, assist PI and Sub-I on any approved delegation log activities that do not require inclusion on 1572