ResearchStudy

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.

Schema

Elements

Name	Required	Type	Description
identifier		Identifier[]	Business Identifier for study Details Identifiers assigned to this research study by the sponsor or other systems.
name		string	Name for this study (computer friendly) Details Name for this study (computer friendly).
title		string	Human readable name of the study Details The human readable name of the research study.
label		ResearchStudyLabel[]	Additional names for the study Details Additional names for the study.
id		string	Unique id for inter-element referencing Details Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
extension		Extension[]	Additional content defined by implementations Details May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
modifierExtension		Extension[]	Extensions that cannot be ignored even if unrecognized Details May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
type		CodeableConcept	primary | official | scientific | plain-language | subtitle | short-title | acronym | earlier-title | language | auto-translated | human-use | machine-use | duplicate-uid Details Kind of name.
value		string	The name Details The name.
protocol		Reference<PlanDefinition>[]	Steps followed in executing study Details The set of steps expected to be performed as part of the execution of the study.
partOf		Reference<ResearchStudy>[]	Part of larger study Details A larger research study of which this particular study is a component or step.
status	✓	code	active | administratively-completed | approved | closed-to-accrual | closed-to-accrual-and-intervention | completed | disapproved | in-review | temporarily-closed-to-accrual | temporarily-closed-to-accrual-and-intervention | withdrawn Details The current state of the study.
primaryPurposeType		CodeableConcept	treatment | prevention | diagnostic | supportive-care | screening | health-services-research | basic-science | device-feasibility Details The type of study based upon the intent of the study's activities. A classification of the intent of the study.
phase		CodeableConcept	n-a | early-phase-1 | phase-1 | phase-1-phase-2 | phase-2 | phase-2-phase-3 | phase-3 | phase-4 Details The stage in the progression of a therapy from initial experimental use in humans in clinical trials to post-market evaluation.
studyDesign		CodeableConcept[]	Classifications of the study design characteristics Details Codes categorizing the type of study such as investigational vs. observational, type of blinding, type of randomization, safety vs. efficacy, etc.
category		CodeableConcept[]	Classifications for the study Details Codes categorizing the type of study such as investigational vs. observational, type of blinding, type of randomization, safety vs. efficacy, etc.
focus		CodeableConcept[]	Drugs, devices, etc. under study Details The medication(s), food(s), therapy(ies), device(s) or other concerns or interventions that the study is seeking to gain more information about.
condition		CodeableConcept[]	Condition being studied Details 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.
contact		ContactDetail[]	Contact details for the study Details Contact details to assist a user in learning more about or engaging with the study.
relatedArtifact		RelatedArtifact[]	References, URLs, and attachments Details Citations, references, URLs and other related documents. When using relatedArtifact to share URLs, the relatedArtifact.type will often be set to one of "documentation" or "supported-with" and the URL value will often be in relatedArtifact.document.url but another possible location is relatedArtifact.resource when it is a canonical URL.
keyword		CodeableConcept[]	Used to search for the study Details Key terms to aid in searching for or filtering the study.
location		CodeableConcept[]	Geographic region(s) for study Details Indicates a country, state or other region where the study is taking place.
region		CodeableConcept[]	Geographic area for the study Details A country, state or other area where the study is taking place rather than its precise geographic location or address.
descriptionSummary		markdown	Brief text explaining the study Details A brief text for explaining the study.
description		markdown	Detailed narrative of the study Details A detailed and human-readable narrative of the study. E.g., study abstract.
enrollment		Reference<Group>[]	Inclusion & exclusion criteria Details 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". The Group referenced should not generally enumerate specific subjects. Subjects will be linked to the study using the ResearchSubject resource.
period		Period	When the study began and ended Details Identifies the start date and the expected (or actual, depending on status) end date for the study.
sponsor		Reference<Organization>	Organization that initiates and is legally responsible for the study Details An organization that initiates the investigation and is legally responsible for the study.
principalInvestigator		Reference<Practitioner | PractitionerRole>	Researcher who oversees multiple aspects of the study Details 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.
site		Reference< Location | ResearchStudy | Organization >[]	Facility where study activities are conducted Details A facility in which study activities are conducted.
reasonStopped		CodeableConcept	accrual-goal-met | closed-due-to-toxicity | closed-due-to-lack-of-study-progress | temporarily-closed-per-study-design Details A description and/or code explaining the premature termination of the study.
note		Annotation[]	Comments made about the study Details Comments made about the study by the performer, subject or other participants.
arm		ResearchStudyArm[]	Defined path through the study for a subject Details 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.
id		string	Unique id for inter-element referencing Details Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
extension		Extension[]	Additional content defined by implementations Details May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
modifierExtension		Extension[]	Extensions that cannot be ignored even if unrecognized Details May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
name	✓	string	Label for study arm Details Unique, human-readable label for this arm of the study.
type		CodeableConcept	Categorization of study arm Details Categorization of study arm, e.g. experimental, active comparator, placebo comparater.
description		string	Short explanation of study path Details A succinct description of the path through the study that would be followed by a subject adhering to this arm.
classifier		CodeableConcept[]	Classification for the study Details Additional grouping mechanism or categorization of a research study. Example: FDA regulated device, FDA regulated drug, MPG Paragraph 23b (a German legal requirement), IRB-exempt, etc. Implementation Note: do not use the classifier element to support existing semantics that are already supported thru explicit elements in the resource.
associatedParty		ResearchStudyAssociatedParty[]	Sponsors, collaborators, and other parties Details Sponsors, collaborators, and other parties. For a Sponsor or a PrincipalInvestigator use the dedicated attributes provided.
id		string	Unique id for inter-element referencing Details Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
extension		Extension[]	Additional content defined by implementations Details May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
modifierExtension		Extension[]	Extensions that cannot be ignored even if unrecognized Details May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
name		string	Name of associated party Details Name of associated party.
role	✓	CodeableConcept	sponsor | lead-sponsor | sponsor-investigator | primary-investigator | collaborator | funding-source | general-contact | recruitment-contact | sub-investigator | study-director | study-chair Details Type of association.
period		Period[]	When active in the role Details Identifies the start date and the end date of the associated party in the role. The cardinality is 0..* due to the fact that an associated party may be intermittently active in a given role over multiple time periods.
classifier		CodeableConcept[]	nih | fda | government | nonprofit | academic | industry Details A categorization other than role for the associated party.
party		Reference< Practitioner | PractitionerRole | Organization >	Individual or organization associated with study (use practitionerRole to specify their organisation) Details Individual or organization associated with study (use practitionerRole to specify their organisation). Suggestions of a better attribute name are appreciated
progressStatus		ResearchStudyProgressStatus[]	Status of study with time for that status Details Status of study with time for that status.
id		string	Unique id for inter-element referencing Details Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
extension		Extension[]	Additional content defined by implementations Details May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
modifierExtension		Extension[]	Extensions that cannot be ignored even if unrecognized Details May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
state	✓	CodeableConcept	Label for status or state (e.g. recruitment status) Details Label for status or state (e.g. recruitment status).
actual		boolean	Actual if true else anticipated Details An indication of whether or not the date is a known date when the state changed or will change. A value of true indicates a known date. A value of false indicates an estimated date.
period		Period	Date range Details Date range.
whyStopped		CodeableConcept	accrual-goal-met | closed-due-to-toxicity | closed-due-to-lack-of-study-progress | temporarily-closed-per-study-design Details A description and/or code explaining the premature termination of the study.
recruitment		ResearchStudyRecruitment	Target or actual group of participants enrolled in study Details Target or actual group of participants enrolled in study.
id		string	Unique id for inter-element referencing Details Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
extension		Extension[]	Additional content defined by implementations Details May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
modifierExtension		Extension[]	Extensions that cannot be ignored even if unrecognized Details May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
targetNumber		unsignedInt	Estimated total number of participants to be enrolled Details Estimated total number of participants to be enrolled.
actualNumber		unsignedInt	Actual total number of participants enrolled in study Details Actual total number of participants enrolled in study.
eligibility		Reference<Group | EvidenceVariable>	Inclusion and exclusion criteria Details Inclusion and exclusion criteria.
actualGroup		Reference<Group>	Group of participants who were enrolled in study Details Group of participants who were enrolled in study.
comparisonGroup		ResearchStudyComparisonGroup[]	Defined path through the study for a subject Details Describes an expected event or sequence of events for one of the subjects of a study. E.g. for a living subject: exposure to drug A, wash-out, exposure to drug B, wash-out, follow-up. E.g. for a stability study: {store sample from lot A at 25 degrees for 1 month}, {store sample from lot A at 40 degrees for 1 month}. In many clinical trials this is refered to as the ARM of the study, but such a term is not used in other sorts of trials even when there is a comparison between two or more groups.
id		string	Unique id for inter-element referencing Details Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
extension		Extension[]	Additional content defined by implementations Details May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
modifierExtension		Extension[]	Extensions that cannot be ignored even if unrecognized Details May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
linkId		id	Allows the comparisonGroup for the study and the comparisonGroup for the subject to be linked easily Details Allows the comparisonGroup for the study and the comparisonGroup for the subject to be linked easily.
name	✓	string	Label for study comparisonGroup Details Unique, human-readable label for this comparisonGroup of the study.
type		CodeableConcept	Categorization of study comparisonGroup Details Categorization of study comparisonGroup, e.g. experimental, active comparator, placebo comparater.
description		markdown	Short explanation of study path Details A succinct description of the path through the study that would be followed by a subject adhering to this comparisonGroup.
intendedExposure		Reference<EvidenceVariable>[]	Interventions or exposures in this comparisonGroup or cohort Details Interventions or exposures in this comparisonGroup or cohort.
observedGroup		Reference<Group>	Group of participants who were enrolled in study comparisonGroup Details Group of participants who were enrolled in study comparisonGroup.
objective		ResearchStudyObjective[]	A goal for the study Details 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.
id		string	Unique id for inter-element referencing Details Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
extension		Extension[]	Additional content defined by implementations Details May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
modifierExtension		Extension[]	Extensions that cannot be ignored even if unrecognized Details May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
name		string	Label for the objective Details Unique, human-readable label for this objective of the study.
type		CodeableConcept	primary | secondary | exploratory Details The kind of study objective.
description		markdown	Description of the objective Details Free text description of the objective of the study. This is what the study is trying to achieve rather than how it is going to achieve it (see ResearchStudy.description).
outcomeMeasure		ResearchStudyOutcomeMeasure[]	A variable measured during the study Details An "outcome measure", "endpoint", "effect measure" or "measure of effect" is a specific measurement or observation used to quantify the effect of experimental variables on the participants in a study, or for observational studies, to describe patterns of diseases or traits or associations with exposures, risk factors or treatment. A study may have multiple distinct outcome measures that can be used to assess the overall goal for a study. The goal of a study is in the objective whereas the metric by which the goal is assessed is the outcomeMeasure. Examples: Time to Local Recurrence (TLR), Disease-free Survival (DFS), 30 Day Mortality, Systolic BP
id		string	Unique id for inter-element referencing Details Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
extension		Extension[]	Additional content defined by implementations Details May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
modifierExtension		Extension[]	Extensions that cannot be ignored even if unrecognized Details May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
name		string	Label for the outcome Details Label for the outcome.
type		CodeableConcept[]	primary | secondary | exploratory Details The parameter or characteristic being assessed as one of the values by which the study is assessed.
description		markdown	Description of the outcome Details Description of the outcome.
reference		Reference<EvidenceVariable>	Structured outcome definition Details Structured outcome definition.
result		Reference<DiagnosticReport>[]	Link to results generated during the study Details Link to one or more sets of results generated by the study. Could also link to a research registry holding the results such as ClinicalTrials.gov.

Search Parameters

Name	Type	Description	Expression
category	token	Classifications for the study	ResearchStudy.category
date	date	When the study began and ended	ResearchStudy.period
focus	token	Drugs, devices, etc. under study	ResearchStudy.focus
identifier	token	Business Identifier for study	ResearchStudy.identifier
keyword	token	Used to search for the study	ResearchStudy.keyword
location	token	Geographic region(s) for study	ResearchStudy.location
partof	reference	Part of larger study	ResearchStudy.partOf
principalinvestigator	reference	Researcher who oversees multiple aspects of the study	ResearchStudy.principalInvestigator
protocol	reference	Steps followed in executing study	ResearchStudy.protocol
site	reference	Facility where study activities are conducted	ResearchStudy.site
sponsor	reference	Organization that initiates and is legally responsible for the study	ResearchStudy.sponsor
status	token	active | administratively-completed | approved | closed-to-accrual | closed-to-accrual-and-intervention | completed | disapproved | in-review | temporarily-closed-to-accrual | temporarily-closed-to-accrual-and-intervention | withdrawn	ResearchStudy.status
title	string	Name for this study	ResearchStudy.title
classifier	token	Classification for the study	ResearchStudy.classifier
condition	token	Condition being studied	ResearchStudy.condition
date	date	When the study began and ended	ResearchStudy.period
description	string	Detailed narrative of the study	ResearchStudy.description
eligibility	reference	Inclusion and exclusion criteria	ResearchStudy.recruitment.eligibility
identifier	token	Business Identifier for study	ResearchStudy.identifier
keyword	token	Used to search for the study	ResearchStudy.keyword
name	string	Name for this study	ResearchStudy.name
objective-description	string	Free text description of the objective of the study	ResearchStudy.objective.description
objective-type	token	The kind of study objective	ResearchStudy.objective.type
part-of	reference	Part of larger study	ResearchStudy.partOf
phase	token	The stage in the progression of a study	ResearchStudy.phase
protocol	reference	Steps followed in executing study	ResearchStudy.protocol
recruitment-actual	number	Actual number of participants enrolled in study across all groups	ResearchStudy.recruitment.actualNumber
recruitment-target	number	Target number of participants enrolled in study across all groups	ResearchStudy.recruitment.targetNumber
region	token	Geographic area for the study	ResearchStudy.region
site	reference	Facility where study activities are conducted	ResearchStudy.site
status	token	active | active-but-not-recruiting | administratively-completed | approved | closed-to-accrual | closed-to-accrual-and-intervention | completed | disapproved | enrolling-by-invitation | in-review | not-yet-recruiting | recruiting | temporarily-closed-to-accrual | temporarily-closed-to-accrual-and-intervention | terminated | withdrawn	ResearchStudy.status
study-design	token	Classifications of the study design characteristics	ResearchStudy.studyDesign
title	string	The human readable name of the research study	ResearchStudy.title
progress-status-state-actual	composite	Status of study by state and actual	ResearchStudy.progressStatus
progress-status-state-period	composite	Status of study by state and period	ResearchStudy.progressStatus
progress-status-state-period-actual	composite	Status of study by state, period and actual	ResearchStudy.progressStatus
outcome-measure-reference	reference	The research study outcome measure reference	ResearchStudy.outcomeMeasure.reference

Inherited Elements

Name	Required	Type	Description
id		string	Logical id of this artifact Details The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes. The only time that a resource does not have an id is when it is being submitted to the server using a create operation.
meta		Meta	Metadata about the resource Details The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.
implicitRules		uri	A set of rules under which this content was created Details A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc. Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.
language		code	Language of the resource content Details The base language in which the resource is written. Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).
text		Narrative	Text summary of the resource, for human interpretation Details A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety. Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later.
contained		Resource[]	Contained, inline Resources Details These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope. This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels.
extension		Extension[]	Additional content defined by implementations Details May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
modifierExtension		Extension[]	Extensions that cannot be ignored Details May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Usage

This resource is an definition resource from a FHIR workflow perspective - see Workflow.

A research study is a scientific way to improve or develop new methods of health care. Studies are designed to answer specific questions on how to prevent, diagnose, or treat diseases and disorders. The ResearchStudy resource describes essential information about the study, including the purpose, objective, sponsor, investigator, therapy, condition being studied, schedule of activities, and other key items.

Uses for the ResearchStudy resource include:

• Registering a clinical trial in trial registry such as clinicaltrials.gov
• Communicating study protocol information between study stakeholders
• Supporting study set up of sites, forms
• Grouping Observation resources by study
• Setting up a Schedule of Activities for the study and its subjects

Referenced By

• UsageContext
• AdverseEvent
• MedicinalProduct
• ResearchSubject