--- title: "IIT, Investigator-Initiated Trial | MedTech Terms" description: "A clinical trial where an individual investigator (typically academic), not the device or drug manufacturer, holds the regulatory sponsor role and is…" lang: en json-ld: | { "@context": "https://schema.org", "@graph": [ { "@type": "DefinedTerm", "@id": "https://medtechterms.com/terms/investigator-initiated-trial#term", "name": "Investigator-Initiated Trial", "alternateName": [ "IIT", "Investigator-sponsored trial", "IST" ], "description": "An Investigator-Initiated Trial (IIT) is a clinical study in which an individual investigator (almost always an academic clinician) acts as the regulatory sponsor under 21 CFR 312 (drug IND) or 812 (device IDE), holding all sponsor obligations for protocol design, IRB/IEC submission, regulatory submissions, AE reporting, and study conduct. 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[Home](/) 2. / 3. [Terms](/terms) 4. / 5. [Clinical & Trials](/terms?cat=Clinical%20%26%20Trials) 6. / 7. Investigator-Initiated Trial [All terms](/terms) Clinical & Trials [Clinical Evidence](/ecosystems/clinical-evidence)IIT # Investigator-Initiated Trial A clinical trial where an individual investigator (typically academic), not the device or drug manufacturer, holds the regulatory sponsor role and is responsible for IRB, IDE/IND, and conduct. Reviewed by [Christian Espinosa, Founder, Blue Goat Cyber](/authors/christian-espinosa) Last reviewed May 9, 2026 ## Definition An Investigator-Initiated Trial (IIT) is a clinical study in which an individual investigator (almost always an academic clinician) acts as the regulatory sponsor under 21 CFR 312 (drug IND) or 812 (device [IDE](/terms/ide)), holding all sponsor obligations for protocol design, [IRB](/terms/irb)/IEC submission, regulatory submissions, AE reporting, and study conduct. Industry support is typically limited to product supply and a financial grant under an Investigator-Initiated Research (IIR) agreement. What the regulation says 21 CFR 312/812 sponsor-investigator obligations are the same as for industry sponsors, including IND/ [IDE](/terms/ide) filing, ICH E6 [GCP](/terms/gcp) compliance, [IRB](/terms/irb) oversight, and AE reporting. ## What this means in practice IITs are an important evidence-generation channel for new use cases, expanded populations, and combination studies that the manufacturer is unlikely to fund directly. Compliance landmines arise when industry inadvertently exerts study-design control, which can convert the study into a manufacturer-sponsored trial with full [PMA](/terms/pma)/ [labeling](/terms/labeling) implications. Common pitfalls - • Industry sponsors providing too much protocol input, risks reclassification of the study as manufacturer-sponsored. - • Investigator-sponsors underestimating the regulatory burden they have assumed. ## Related terms Grouped by theme ### Editor's picks · Hand-selected related concepts [ Clinical & Trials ICH E6 Good Clinical Practice(GCP) International standard for the design, conduct, and reporting of clinical trials. ](/terms/ich-gcp)[ Clinical & Trials Informed Consent Voluntary, informed agreement to participate in research after disclosure of risks and benefits. ](/terms/informed-consent)[ Clinical & Trials Institutional Review Board(IRB) Board that reviews and approves human-subjects research at an institution. ](/terms/irb)[ Clinical & Trials Investigational Device Exemption(IDE) FDA authorization to use an investigational device in a clinical study. ](/terms/ide) ### More in Clinical & Trials · Same category [ Clinical & Trials Adaptive Trial Design Trial design that pre-specifies opportunities to modify aspects (sample size, arms, endpoints) based on interim data. ](/terms/adaptive-trial)[ Clinical & Trials Adverse Event(AE) Any untoward medical occurrence in a subject, whether or not related to the device. ](/terms/adverse-event)[ Clinical & Trials ALCOA+ Data integrity principles: Attributable, Legible, Contemporaneous, Original, Accurate (plus Complete, Consistent, Enduring, Available). ](/terms/alcoa-plus)[ Clinical & Trials Analytical Sensitivity An IVD's ability to detect small quantities of an analyte. ](/terms/analytical-sensitivity) Cited by Where this term appears across MedTech Terms. Ecosystems (1) - [Clinical Evidence](/ecosystems/clinical-evidence) ## Primary references 3 sources Link health: 3 verified · last checked 2026-06-20 FDA· 1 eCFR· 1 NIH· 1 1. [1 FDA, Investigator Responsibilities Verified FDA · fda.gov ](https://www.fda.gov/regulatory-information/search-fda-guidance-documents/investigator-responsibilities-protecting-rights-safety-and-welfare-study-subjects) 2. [2 21 CFR 312, Investigational New Drug Application Verified eCFR · ecfr.gov ](https://www.ecfr.gov/current/title-21/chapter-I/subchapter-D/part-312) 3. [3 ClinicalTrials.gov Verified NIH · clinicaltrials.gov ](https://clinicaltrials.gov/) Inline markers like \[1\] jump to the matching reference above. Sponsor note ### Clinical evidence intersecting with device security? We support clinical-stage MedTech teams whose investigational devices touch patient data or hospital networks. 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On this term Category Clinical & Trials Acronym IIT Sources 3 Updated 5/9/2026 [Compare with another term](/compare?a=investigator-initiated-trial) Learn in 60 seconds Card Lesson Quiz A clinical trial where an individual investigator (typically academic), not the device or drug manufacturer, holds the regulatory sponsor role and is responsible for IRB, IDE/IND, and conduct. - · IITs are an important evidence-generation channel for new use cases, expanded populations, and combination studies that the manufacturer is unlikely to fund directly. - · Compliance landmines arise when industry inadvertently exerts study-design control, which can convert the study into a manufacturer-sponsored trial with full PMA/labeling implications. - · Industry support is typically limited to product supply and a financial grant under an Investigator-Initiated Research (IIR) agreement. Remember this Watch out: Industry sponsors providing too much protocol input, risks reclassification of the study as manufacturer-sponsored. Related terms - [Investigational Device Exemption(IDE) ](/terms/ide) - [ICH E6 Good Clinical Practice(GCP) ](/terms/ich-gcp) - [Institutional Review Board(IRB) ](/terms/irb) - [Informed Consent ](/terms/informed-consent) You may also need Auto-suggested from Clinical & Trials and shared keywords. - [Contract Research Organization(CRO) ](/terms/cro) - [Trial Master File(TMF) ](/terms/trial-master-file) - [Investigator Brochure(IB) ](/terms/investigator-brochure) - [Performance Study (IVDR) ](/terms/ivdr-performance-study) - [Pivotal Trial ](/terms/pivotal-trial) - [Primary and Secondary Endpoints ](/terms/primary-secondary-endpoint) [All Clinical & Trials terms](/terms?cat=Clinical%20%26%20Trials) From the Blue Goat network Related resources and services on this topic. - [ MedTech Launchpad MedTech funding rounds, accelerators, and launch resources. ](https://medtechlaunchguide.com) MedTech Terms An authoritative, plain-language reference for the regulatory, quality, cybersecurity, and software terms that shape modern medical devices. 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