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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.

BORAKA pathway status

Practice available

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Practice Labs for this role

Practice available

Investigator Oversight Challenge

Free, realistic practice for this role. No account needed, and practice results are developmental feedback only.

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The evidence pathway to the Passport

Every role follows the same pathway. Each stage carries the same role profile and evidence language forward.

  1. 01

    Practice

    Free, realistic scenarios for this role. Practice builds skill and self-knowledge; it is never verified evidence.

  2. 02

    Assess

    A role-specific baseline establishes what the work currently demonstrates and where the gaps are.

  3. 03

    Develop

    Targeted development closes only the gaps the work has actually demonstrated.

  4. 04

    Verify

    A controlled assessment, reviewed by a human assessor against the published standard.

  5. 05

    Passport

    Scoped, permission-controlled evidence the professional chooses to share.

Practice is never verified evidence. Verified evidence requires human review.

Verification for this role is not open yet

You can practice today. If you want to hear when Investigator / Principal Investigator verification opens, leave your details. There is no date yet, and joining does not reserve a place.

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.

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  • Open the Practice Lab selector

    Investigator-specific Practice is in development. Explore the live role catalog.

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  • Read the verification standard

    See how performance evidence is assessed, verified, and shared.

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  • Explore career support

    Optional support for role and career decisions.

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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.