Investigator / Principal Investigator: what the role actually involves
A Principal Investigator is the qualified clinician responsible for trial conduct at a research site, including participant safety, protocol compliance, delegation, and oversight of the site team.
What this role involves
- Reviewing participant eligibility, safety, and significant clinical decisions
- Supervising delegated trial activities and confirming staff remain qualified
- Reviewing safety information, deviations, and study data requiring clinical judgment
- Meeting sponsors, monitors, ethics committees, and regulators when required
Common settings
Hospitals, academic medical centers, specialist clinics, and dedicated research sites.
How professionals enter
This work requires the qualifications and authority defined by employers, institutions, sponsors, and applicable regulations.
Where this role sits in drug development
Investigators work at research sites from feasibility and start-up through participant conduct, close-out, and record retention. They remain accountable for the trial activities delegated at their site.
BORAKA pathways for this role
- Explore BORAKA Academy
Role-relevant learning and development resources.
Go - Open the Practice Lab selector
Investigator-specific Practice is in development. Explore the live role catalog.
Go - Read the verification standard
See how performance evidence is assessed, verified, and shared.
Go - Explore career support
Optional support for role and career decisions.
Go
Frequently asked questions
Is every investigator a Principal Investigator?
No. A study may include sub-investigators who perform delegated clinical duties, while the Principal Investigator retains overall site responsibility. Titles and delegation vary by study and organization.
Does BORAKA qualify someone to act as an investigator?
No. Employers, sponsors, institutions, and applicable regulations determine investigator qualifications. BORAKA describes and supports role-relevant capability; it does not confer legal or regulatory qualification.
Can a Principal Investigator delegate trial tasks?
Yes, when delegation is appropriate and documented, but the Principal Investigator retains oversight and accountability. The exact boundaries depend on qualifications, protocol, site procedures, and applicable requirements.
What evidence demonstrates investigator oversight?
Useful evidence can include documented review, timely safety decisions, appropriate delegation, and clear responses to deviations or findings. Confidential participant and study information must remain protected.