This case-sensitive code system http://terminology.hl7.org/CodeSystem/research-subject-state defines the following codes: Code Display Definition candidate Candidate An identified person that can be considered for inclusion in a study. eligible Eligible A person that has met the eligibility criteria for inclusion in a study. follow-up Follow-up A person is no longer receiving study intervention and/or being evaluated with tests and procedures according to the protocol, but they are being monitored on a protocol-prescribed schedule. ineligible Ineligible A person who did not meet one or more criteria required for participation in a study is considered to have failed screening or is ineligible for the study. not-registered Not Registered A person for whom registration was not completed. off-study Off-study A person that has ended their participation on a study either because their treatment/observation is complete or through not responding, withdrawal, non-compliance and/or adverse event. on-study On-study A person that is enrolled or registered on a study. on-study-intervention On-study-intervention The person is receiving the treatment or participating in an activity (e.g. yoga, diet, etc.) that the study is evaluating. on-study-observation On-study-observation The subject is being evaluated via tests and assessments according to the study calendar, but is not receiving any intervention. Note that this state is study-dependent and might not exist in all studies. A synonym for this is "short-term follow-up". pending-on-study Pending on-study A person is pre-registered for a study. potential-candidate Potential Candidate A person that is potentially eligible for participation in the study. screening Screening A person who is being evaluated for eligibility for a study. withdrawn Withdrawn The person has withdrawn their participation in the study before registration.
Indicates the progression of a study subject through a study.
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
An identified person that can be considered for inclusion in a study.
A person that has met the eligibility criteria for inclusion in a study.
A person is no longer receiving study intervention and/or being evaluated with tests and procedures according to the protocol, but they are being monitored on a protocol-prescribed schedule.
A person who did not meet one or more criteria required for participation in a study is considered to have failed screening or is ineligible for the study.
A person for whom registration was not completed.
A person that has ended their participation on a study either because their treatment/observation is complete or through not responding, withdrawal, non-compliance and/or adverse event.
A person that is enrolled or registered on a study.
The person is receiving the treatment or participating in an activity (e.g. yoga, diet, etc.) that the study is evaluating.
The subject is being evaluated via tests and assessments according to the study calendar, but is not receiving any intervention. Note that this state is study-dependent and might not exist in all studies. A synonym for this is "short-term follow-up".
A person that is potentially eligible for participation in the study.
A person who is being evaluated for eligibility for a study.
The person has withdrawn their participation in the study before registration.