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Biomedical Research and Regulation   Work Group | Maturity Level: 1 | Trial Use | Security Category: Business | Compartments: Practitioner | 
Detailed Descriptions for the elements in the ResearchStudy resource.
| ResearchStudy | |
| Element Id | ResearchStudy | 
| Definition | A process where a researcher or organization plans and then executes a series of steps intended to increase the field of healthcare-related knowledge. This includes studies of safety, efficacy, comparative effectiveness and other information about medications, devices, therapies and other interventional and investigative techniques. A ResearchStudy involves the gathering of information about human or animal subjects.  | 
| Cardinality | 0..* | 
| Type | DomainResource | 
| Alternate Names | Clinical Trial; Study | 
| Comments | Need to make sure we encompass public health studies.  | 
| ResearchStudy.identifier | |
| Element Id | ResearchStudy.identifier | 
| Definition | Identifiers assigned to this research study by the sponsor or other systems.  | 
| Note | This is a business identifier, not a resource identifier (see discussion) | 
| Cardinality | 0..* | 
| Type | Identifier | 
| Requirements | Allows identification of the research study as it is known by various participating systems and in a way that remains consistent across servers.  | 
| Summary | true | 
| ResearchStudy.title | |
| Element Id | ResearchStudy.title | 
| Definition | A short, descriptive user-friendly label for the study.  | 
| Cardinality | 0..1 | 
| Type | string | 
| Summary | true | 
| ResearchStudy.protocol | |
| Element Id | ResearchStudy.protocol | 
| Definition | The set of steps expected to be performed as part of the execution of the study.  | 
| Cardinality | 0..* | 
| Type | Reference(PlanDefinition) | 
| Summary | true | 
| ResearchStudy.partOf | |
| Element Id | ResearchStudy.partOf | 
| Definition | A larger research study of which this particular study is a component or step.  | 
| Cardinality | 0..* | 
| Type | Reference(ResearchStudy) | 
| Requirements | Allows breaking a study into components (e.g. by study site) each with their own PI, status, enrollment, etc.  | 
| Alternate Names | container | 
| Summary | true | 
| ResearchStudy.status | |
| Element Id | ResearchStudy.status | 
| Definition | The current state of the study.  | 
| Cardinality | 1..1 | 
| Terminology Binding | ResearchStudyStatus (Required) | 
| Type | code | 
| Is Modifier | true (Reason: This element is labeled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid) | 
| Summary | true | 
| ResearchStudy.primaryPurposeType | |
| Element Id | ResearchStudy.primaryPurposeType | 
| Definition | The type of study based upon the intent of the study's activities. A classification of the intent of the study.  | 
| Cardinality | 0..1 | 
| Terminology Binding | ResearchStudyPrimaryPurposeType (Extensible) | 
| Type | CodeableConcept | 
| Summary | true | 
| ResearchStudy.phase | |
| Element Id | ResearchStudy.phase | 
| Definition | The stage in the progression of a therapy from initial experimental use in humans in clinical trials to post-market evaluation.  | 
| Cardinality | 0..1 | 
| Terminology Binding | ResearchStudyPhase (Example) | 
| Type | CodeableConcept | 
| Summary | true | 
| ResearchStudy.category | |
| Element Id | ResearchStudy.category | 
| Definition | Codes categorizing the type of study such as investigational vs. observational, type of blinding, type of randomization, safety vs. efficacy, etc.  | 
| Cardinality | 0..* | 
| Terminology Binding | ResearchStudyCategory: | 
| Type | CodeableConcept | 
| Summary | true | 
| ResearchStudy.focus | |
| Element Id | ResearchStudy.focus | 
| Definition | The medication(s), food(s), therapy(ies), device(s) or other concerns or interventions that the study is seeking to gain more information about.  | 
| Cardinality | 0..* | 
| Terminology Binding | ResearchStudyFocus: | 
| Type | CodeableConcept | 
| Summary | true | 
| ResearchStudy.condition | |
| Element Id | ResearchStudy.condition | 
| Definition | The condition that is the focus of the study. For example, In a study to examine risk factors for Lupus, might have as an inclusion criterion "healthy volunteer", but the target condition code would be a Lupus SNOMED code.  | 
| Cardinality | 0..* | 
| Terminology Binding | Condition/Problem/Diagnosis Codes (Example) | 
| Type | CodeableConcept | 
| Summary | true | 
| ResearchStudy.contact | |
| Element Id | ResearchStudy.contact | 
| Definition | Contact details to assist a user in learning more about or engaging with the study.  | 
| Cardinality | 0..* | 
| Type | ContactDetail | 
| Summary | true | 
| ResearchStudy.relatedArtifact | |
| Element Id | ResearchStudy.relatedArtifact | 
| Definition | Citations, references and other related documents.  | 
| Cardinality | 0..* | 
| Type | RelatedArtifact | 
| ResearchStudy.keyword | |
| Element Id | ResearchStudy.keyword | 
| Definition | Key terms to aid in searching for or filtering the study.  | 
| Cardinality | 0..* | 
| Terminology Binding | ResearchStudyKeyword: | 
| Type | CodeableConcept | 
| Summary | true | 
| ResearchStudy.location | |
| Element Id | ResearchStudy.location | 
| Definition | Indicates a country, state or other region where the study is taking place.  | 
| Cardinality | 0..* | 
| Terminology Binding | Jurisdiction (Extensible) | 
| Type | CodeableConcept | 
| Summary | true | 
| ResearchStudy.description | |
| Element Id | ResearchStudy.description | 
| Definition | A full description of how the study is being conducted.  | 
| Cardinality | 0..1 | 
| Type | markdown | 
| ResearchStudy.enrollment | |
| Element Id | ResearchStudy.enrollment | 
| Definition | Reference to a Group that defines the criteria for and quantity of subjects participating in the study. E.g. " 200 female Europeans between the ages of 20 and 45 with early onset diabetes".  | 
| Cardinality | 0..* | 
| Type | Reference(Group) | 
| Alternate Names | patient | 
| Summary | true | 
| Comments | The Group referenced should not generally enumerate specific subjects. Subjects will be linked to the study using the ResearchSubject resource.  | 
| ResearchStudy.period | |
| Element Id | ResearchStudy.period | 
| Definition | Identifies the start date and the expected (or actual, depending on status) end date for the study.  | 
| Cardinality | 0..1 | 
| Type | Period | 
| Alternate Names | timing | 
| Summary | true | 
| ResearchStudy.sponsor | |
| Element Id | ResearchStudy.sponsor | 
| Definition | An organization that initiates the investigation and is legally responsible for the study.  | 
| Cardinality | 0..1 | 
| Type | Reference(Organization) | 
| Summary | true | 
| ResearchStudy.principalInvestigator | |
| Element Id | ResearchStudy.principalInvestigator | 
| Definition | A researcher in a study who oversees multiple aspects of the study, such as concept development, protocol writing, protocol submission for IRB approval, participant recruitment, informed consent, data collection, analysis, interpretation and presentation.  | 
| Cardinality | 0..1 | 
| Type | Reference(Practitioner | PractitionerRole) | 
| Summary | true | 
| ResearchStudy.site | |
| Element Id | ResearchStudy.site | 
| Definition | A facility in which study activities are conducted.  | 
| Cardinality | 0..* | 
| Type | Reference(Location) | 
| Summary | true | 
| ResearchStudy.reasonStopped | |
| Element Id | ResearchStudy.reasonStopped | 
| Definition | A description and/or code explaining the premature termination of the study.  | 
| Cardinality | 0..1 | 
| Terminology Binding | ResearchStudyReasonStopped (Example) | 
| Type | CodeableConcept | 
| Summary | true | 
| ResearchStudy.note | |
| Element Id | ResearchStudy.note | 
| Definition | Comments made about the study by the performer, subject or other participants.  | 
| Cardinality | 0..* | 
| Type | Annotation | 
| ResearchStudy.arm | |
| Element Id | ResearchStudy.arm | 
| Definition | Describes an expected sequence of events for one of the participants of a study. E.g. Exposure to drug A, wash-out, exposure to drug B, wash-out, follow-up.  | 
| Cardinality | 0..* | 
| ResearchStudy.arm.name | |
| Element Id | ResearchStudy.arm.name | 
| Definition | Unique, human-readable label for this arm of the study.  | 
| Cardinality | 1..1 | 
| Type | string | 
| ResearchStudy.arm.type | |
| Element Id | ResearchStudy.arm.type | 
| Definition | Categorization of study arm, e.g. experimental, active comparator, placebo comparater.  | 
| Cardinality | 0..1 | 
| Type | CodeableConcept | 
| ResearchStudy.arm.description | |
| Element Id | ResearchStudy.arm.description | 
| Definition | A succinct description of the path through the study that would be followed by a subject adhering to this arm.  | 
| Cardinality | 0..1 | 
| Type | string | 
| ResearchStudy.objective | |
| Element Id | ResearchStudy.objective | 
| Definition | A goal that the study is aiming to achieve in terms of a scientific question to be answered by the analysis of data collected during the study.  | 
| Cardinality | 0..* | 
| ResearchStudy.objective.name | |
| Element Id | ResearchStudy.objective.name | 
| Definition | Unique, human-readable label for this objective of the study.  | 
| Cardinality | 0..1 | 
| Type | string | 
| ResearchStudy.objective.type | |
| Element Id | ResearchStudy.objective.type | 
| Definition | The kind of study objective.  | 
| Cardinality | 0..1 | 
| Terminology Binding | ResearchStudyObjectiveType (Preferred) | 
| Type | CodeableConcept |