ACRP-MDP study materials
ACRP-MDP study resources

ACRP-MDP key terms

ACRP-MDP · Get comfortable with the vocabulary.

Clinical Investigation Plan (CIP)

The written document that states the rationale, objectives, design, methodology, monitoring, statistical considerations, and record-keeping requirements for a medical device clinical investigation. It is the device-trial counterpart of a clinical protocol.

Related: Clinical Investigation Report (CIR), Sponsor-Investigator
Clinical Investigation Report (CIR)

A written account of the methods and results of a completed medical device clinical investigation, prepared by the sponsor and used to support regulatory submissions and transparency obligations.

Related: Clinical Investigation Plan (CIP)
ISO 14155

The international standard governing good clinical practice for clinical investigations of medical devices in human subjects, covering ethics, conduct, monitoring, data handling, and documentation. Regulators and sponsors use it as the benchmark for device trial quality.

Related: Clinical Investigation Plan (CIP), Informed Consent Form, Adverse Device Effect (ADE)
ICH-GCP E6

The harmonized international guideline for good clinical practice in trials of investigational products, setting standards for ethics, protocol conduct, investigator responsibilities, and data quality. Device trials often apply its principles alongside ISO 14155.

Related: ISO 14155, Institutional Review Board (IRB)/Ethics Committee (EC)
Institutional Review Board (IRB)/Ethics Committee (EC)

An independent body that reviews and approves or disapproves a clinical investigation before it begins, and monitors ongoing conduct, to protect the rights, safety, and well-being of subjects.

Related: Informed Consent Form, Vulnerable Subject
Informed Consent Form

A document that explains a study's purpose, procedures, risks, benefits, alternatives, and confidentiality protections, which a prospective subject signs voluntarily before any study-related procedure occurs.

Related: Institutional Review Board (IRB)/Ethics Committee (EC), Vulnerable Subject, Legally Authorized Representative
Legally Authorized Representative

An individual permitted by law to consent on behalf of a prospective subject who cannot give informed consent, such as a guardian or close family member under applicable local rules.

Related: Informed Consent Form, Vulnerable Subject
Vulnerable Subject

A person whose willingness to volunteer may be unduly influenced by expectation of benefit or fear of reprisal, or who has limited capacity to consent, requiring additional safeguards in enrollment and consent.

Related: Informed Consent Form, Legally Authorized Representative
Investigational Device

A medical device, including a modification or new intended use of an existing device, that is the subject of a clinical investigation and has not yet received marketing authorization for that use.

Related: Significant Risk (SR) Device, Non-Significant Risk (NSR) Device, Investigational Device Exemption (IDE)
Investigational Device Exemption (IDE)

A regulatory authorization that allows a device to be shipped and used in a clinical investigation to gather safety and effectiveness data before marketing approval. It defines the conditions under which the study may proceed.

Related: Investigational Device, Significant Risk (SR) Device, Premarket Approval (PMA)
Significant Risk (SR) Device

An investigational device that presents a potential for serious risk to the health, safety, or welfare of a subject, requiring a formal IDE and full IRB review before study initiation.

Related: Non-Significant Risk (NSR) Device, Investigational Device Exemption (IDE)
Non-Significant Risk (NSR) Device

An investigational device that does not meet the significant risk definition and may proceed under abbreviated requirements without a formal IDE, though IRB approval and compliance with applicable rules are still required.

Related: Significant Risk (SR) Device, Investigational Device Exemption (IDE)
Premarket Approval (PMA)

The regulatory pathway for high-risk devices requiring demonstration of safety and effectiveness through clinical data before marketing. It is typically supported by a pivotal investigation conducted under an IDE.

Related: Investigational Device Exemption (IDE), Pivotal Study
510(k) Premarket Notification

A regulatory submission demonstrating that a moderate-risk device is substantially equivalent to a legally marketed predicate device, allowing marketing without a full PMA. Clinical data may be needed to support the equivalence claim.

Related: Predicate Device, Premarket Approval (PMA)
Predicate Device

An already legally marketed device to which a new device is compared in a 510(k) submission to establish substantial equivalence in intended use and technological characteristics.

Related: 510(k) Premarket Notification
Pivotal Study

A definitive clinical investigation designed to provide the primary evidence of safety and effectiveness needed for a marketing application, usually conducted under an approved IDE with prespecified endpoints and adequate statistical power.

Related: Premarket Approval (PMA), Primary Endpoint
Feasibility Study

An early-stage, often small clinical investigation used to explore device performance, refine procedures, and estimate parameters for a later pivotal study rather than to establish definitive effectiveness.

Related: Pivotal Study
Intended Use

The objective purpose for which a device is designed, including the target population, clinical condition, and conditions of use, as stated by the manufacturer and evaluated in the investigation.

Related: Indication for Use, Investigational Device
Indication for Use

The specific clinical condition, patient population, and circumstances under which a device is intended to be used, as distinct from the broader general purpose described by intended use.

Related: Intended Use
Adverse Event (AE)

Any untoward medical occurrence, unintended disease or injury, or untoward clinical sign in subjects, users, or other persons in a clinical investigation, whether or not related to the investigational device.

Related: Serious Adverse Event (SAE), Adverse Device Effect (ADE), Device Deficiency
Serious Adverse Event (SAE)

An adverse event that led to death, serious deterioration in health, or required hospitalization or medical intervention to prevent such outcomes. SAEs require prompt reporting to sponsors and regulators.

Related: Adverse Event (AE), Unanticipated Serious Adverse Device Effect (USADE)
Adverse Device Effect (ADE)

An adverse event that is related to the use of an investigational medical device, including events arising from inadequate instructions or user error, and which may require reporting to the sponsor.

Related: Serious Adverse Event (SAE), Device Deficiency, Unanticipated Serious Adverse Device Effect (USADE)
Serious Adverse Device Effect (SADE)

An adverse device effect that has resulted in any consequence characteristic of a serious adverse event, such as death, serious deterioration in health, or hospitalization.

Related: Adverse Device Effect (ADE), Serious Adverse Event (SAE)
Unanticipated Serious Adverse Device Effect (USADE)

A serious adverse device effect whose nature, severity, or outcome was not identified in the current investigator brochure, CIP, or consent materials. USADEs trigger expedited reporting to regulators and ethics committees.

Related: Serious Adverse Device Effect (SADE), Adverse Device Effect (ADE), Investigator's Brochure
Device Deficiency

An inadequacy of a medical device in its identity, quality, durability, reliability, safety, or performance, including malfunctions, labeling errors, or user-interface problems, whether or not an adverse event resulted.

Related: Adverse Device Effect (ADE), Adverse Event (AE)
Investigator's Brochure

A compilation of preclinical and clinical information on an investigational device that is relevant to the investigation, provided to investigators and ethics committees to support safe conduct and informed consent.

Related: Unanticipated Serious Adverse Device Effect (USADE), Clinical Investigation Plan (CIP)
Sponsor

The individual, company, institution, or organization that takes responsibility for the initiation, management, and financing of a clinical investigation, including regulatory submissions and oversight of investigators.

Related: Sponsor-Investigator, Monitor
Sponsor-Investigator

An individual who both initiates and conducts a clinical investigation and, under applicable rules, assumes the combined obligations of sponsor and investigator, including regulatory and reporting responsibilities.

Related: Sponsor, Principal Investigator
Principal Investigator

The qualified person responsible for conducting the clinical investigation at a site, including protecting subjects, following the CIP, obtaining consent, and ensuring accurate data collection and reporting.

Related: Sub-Investigator, Sponsor-Investigator, Delegation of Authority Log
Sub-Investigator

A qualified clinician designated by the principal investigator to perform specific study-related procedures or make important trial decisions, with their role documented in the delegation log.

Related: Principal Investigator, Delegation of Authority Log
Delegation of Authority Log

A site record listing study staff, their qualifications, and the specific tasks each is authorized to perform, demonstrating that the principal investigator has formally delegated duties to trained personnel.

Related: Principal Investigator, Sub-Investigator, Source Document
Source Document

Original records and certified copies, such as hospital charts, laboratory reports, and device logs, from which study data are derived and which support the accuracy of the case report form entries.

Related: Case Report Form (CRF), Delegation of Authority Log, Monitoring Visit
Case Report Form (CRF)

A printed or electronic document designed to capture the study data required by the CIP for each subject, which must be consistent with and traceable to source documents.

Related: Source Document, Data Query
Data Query

A formal request from the sponsor or data management team asking site staff to verify, correct, or clarify data entered on a case report form, with the resolution documented for audit purposes.

Related: Case Report Form (CRF), Monitoring Visit
Monitoring Visit

An on-site or remote review by a sponsor-appointed monitor to verify that the investigation is conducted according to the CIP, applicable regulations, and good clinical practice, and that data are accurate and complete.

Related: Monitor, Source Document, Data Query
Monitor

A person appointed by the sponsor to oversee the progress of a clinical investigation, verify data against source records, and ensure site compliance with the CIP and regulatory requirements.

Related: Monitoring Visit, Sponsor
Primary Endpoint

The prespecified outcome measure that provides the main evidence for the study's primary objective and on which the sample size and statistical analysis plan are based.

Related: Pivotal Study, Statistical Analysis Plan
Statistical Analysis Plan

A document that details the planned statistical methods, analysis populations, and handling of missing data before unblinding or analysis, reducing bias and ensuring transparent reporting.

Related: Primary Endpoint, Clinical Investigation Report (CIR)
Intention-to-Treat Analysis

An analysis that includes all randomized subjects in the groups to which they were assigned, regardless of deviations or discontinuation, preserving the benefits of randomization.

Related: Statistical Analysis Plan, Primary Endpoint