HL7 Terminology (THO)
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CodeSystem: Research Study Status

Official URL: http://terminology.hl7.org/CodeSystem/research-study-status Version: 1.0.0
Active as of 2021-01-05 Maturity Level: 1 Responsible: Health Level Seven International Computable Name: ResearchStudyStatus
Other Identifiers: OID:2.16.840.1.113883.4.642.4.820

Copyright/Legal: This material derives from the HL7 Terminology (THO). THO is copyright ©1989+ Health Level Seven International and is made available under the CC0 designation. For more licensing information see: https://terminology.hl7.org/license

Codes that convey the current status of the research study.

This Code system is referenced in the content logical definition of the following value sets:

Last updated: 2025-11-15 01:54:02+0500

This case-sensitive code system http://terminology.hl7.org/CodeSystem/research-study-status defines the following codes:

CodeDisplayDefinition
overall-study Overall study Used for documenting the start and end of the overall study, distinct from progress states.
active Active Study is opened for accrual.
active-but-not-recruiting Active, not recruiting The study is ongoing, and participants are receiving an intervention or being examined, but potential participants are not currently being recruited or enrolled.
administratively-completed Administratively Completed Study is completed prematurely and will not resume; patients are no longer examined nor treated.
approved Approved Protocol is approved by the review board.
closed-to-accrual Closed to Accrual Study is closed for accrual; patients can be examined and treated.
closed-to-accrual-and-intervention Closed to Accrual and Intervention Study is closed to accrual and intervention, i.e. the study is closed to enrollment, all study subjects have completed treatment or intervention but are still being followed according to the primary objective of the study.
completed Completed The study closed according to the study plan. There will be no further treatments, interventions or data collection.
disapproved Disapproved Protocol was disapproved by the review board.
enrolling-by-invitation Enrolling by invitation The study is selecting its participants from a population, or group of people, decided on by the researchers in advance. These studies are not open to everyone who meets the eligibility criteria but only to people in that particular population, who are specifically invited to participate.
in-review In Review Protocol is submitted to the review board for approval.
not-yet-recruiting Not yet recruiting The study has not started recruiting participants.
recruiting Recruiting The study is currently recruiting participants.
temporarily-closed-to-accrual Temporarily Closed to Accrual Study is temporarily closed for accrual; can be potentially resumed in the future; patients can be examined and treated.
temporarily-closed-to-accrual-and-intervention Temporarily Closed to Accrual and Intervention Study is temporarily closed for accrual and intervention and potentially can be resumed in the future.
terminated Terminated The study has stopped early and will not start again. Participants are no longer being examined or treated.
withdrawn Withdrawn Protocol was withdrawn by the lead organization.

History

DateActionCustodianAuthorComment
2025-11-14createFMGJoanne DehnbostelMove the Research Study Status CodeSystem and ValueSet to THO; up-758