# description
Indicates the progression of a study subject through a study.

# concept[].definition
An identified person that can be considered for inclusion in a study.

# concept[].definition
A person that has met the eligibility criteria for inclusion in a study.

# concept[].definition
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.

# concept[].definition
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.

# concept[].definition
A person for whom registration was not completed.

# concept[].definition
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.

# concept[].definition
A person that is enrolled or registered on a study.

# concept[].definition
The person is receiving the treatment or participating in an activity (e.g. yoga, diet, etc.) that the study is evaluating.

# concept[].definition
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".

# concept[].definition
A person that is potentially eligible for participation in the study.

# concept[].definition
A person who is being evaluated for eligibility for a study.

# concept[].definition
The person has withdrawn their participation in the study before registration.