Clinical Trials MCP Server

Introduction The Search Areas describe the parts of a study record that are searched for content using different fields. Some search areas consist of groups of weighted study fields that can be searched at once (for example, BasicSearch area consists of 43 data fields). This also applies to the search form on the ClinicalTrials.gov homepage. Search areas can also consist of a single data field (for example, Acronym, BriefTitle). See the discussions of Constructing Complex Search Queries for more information on using search areas when conducting searches and to learn how to build detailed searches on ClinicalTrials.gov. The Data Field column refers to "Piece Name" within the Study Data Structure . Fields producing synonyms are marked with ✓. ClinicalTrials.gov only supports one search document: Study. It contains 19 search areas. BasicSearch area This is a default search area for a query entered in "Other terms" input field of search form in UI. Request parameter: query.term. The area contains 57 data fields: Data Field Weight Type NCTId 1 nct Acronym 1 text ✓ BriefTitle 0.89 text ✓ OfficialTitle 0.85 text ✓ Condition 0.81 text ✓ InterventionName 0.8 text ✓ InterventionOtherName 0.75 text ✓ Phase 0.65 enum Phase StdAge 0.65 enum StandardAge PrimaryOutcomeMeasure Keyword 0.6 text ✓ BriefSummary 0.6 markup ✓ ArmGroupLabel SecondaryOutcomeMeasure 0.5 text ✓ InterventionDescription ArmGroupDescription 0.45 markup ✓ PrimaryOutcomeDescription 0.4 markup ✓ LeadSponsorName OrgStudyId SecondaryId 0.4 text NCTIdAlias 0.4 nct InterventionType 0.35 enum InterventionType ArmGroupType 0.35 enum ArmGroupType SecondaryOutcomeDescription 0.35 markup ✓ LocationFacility 0.35 text LocationStatus 0.35 enum RecruitmentStatus LocationState 0.35 GeoName LocationCountry 0.35 text LocationCity 0.35 GeoName BioSpecDescription 0.3 markup ✓ ResponsiblePartyInvestigatorFullName ResponsiblePartyInvestigatorTitle ResponsiblePartyInvestigatorAffiliation ResponsiblePartyOldNameTitle ResponsiblePartyOldOrganization OverallOfficialAffiliation OverallOfficialRole OverallOfficialName CentralContactName ConditionMeshTerm InterventionMeshTerm 0.3 text ✓ DesignAllocation 0.3 enum DesignAllocation DesignInterventionModel 0.3 enum InterventionalAssignment DesignMasking 0.3 enum DesignMasking DesignWhoMasked 0.3 enum WhoMasked DesignObservationalModel 0.3 enum ObservationalModel DesignPrimaryPurpose 0.3 enum PrimaryPurpose DesignTimePerspective 0.3 enum DesignTimePerspective StudyType 0.3 enum StudyType ConditionAncestorTerm InterventionAncestorTerm 0.25 text ✓ CollaboratorName 0.25 text OtherOutcomeMeasure OutcomeMeasureTitle 0.15 text ✓ OtherOutcomeDescription OutcomeMeasureDescription 0.1 markup ✓ LocationContactName 0.1 text ConditionSearch area This is a default search area for a query entered in "Conditions or disease" input field of search form in UI. Request parameter: query.cond. The area contains 7 data fields: Data Field Weight Type Condition 0.95 text ✓ BriefTitle 0.6 text ✓ OfficialTitle 0.55 text ✓ ConditionMeshTerm 0.5 text ✓ ConditionAncestorTerm 0.4 text ✓ Keyword 0.3 text ✓ NCTId 0.2 nct InterventionSearch area This is a default search area for a query entered in "Intervention / treatment" input field of search form in UI. Request parameter: query.intr. The area contains 12 data fields: Data Field Weight Type InterventionName 0.95 text ✓ InterventionType 0.85 enum InterventionType ArmGroupType 0.85 enum ArmGroupType InterventionOtherName 0.75 text ✓ BriefTitle 0.65 text ✓ OfficialTitle 0.6 text ✓ ArmGroupLabel 0.5 text ✓ InterventionMeshTerm 0.5 text ✓ Keyword 0.5 text ✓ InterventionAncestorTerm 0.4 text ✓ InterventionDescription 0.4 markup ✓ ArmGroupDescription 0.4 markup ✓ InterventionNameSearch area The area contains 2 data fields: Data Field Weight Type InterventionName 1 text ✓ InterventionOtherName 0.9 text ✓ ObsoleteConditionSearch area The area contains 4 data fields: Data Field Weight Type Condition 0.95 text ✓ ConditionMeshTerm 0.8 text ✓ ConditionAncestorTerm 0.8 text ✓ Keyword 0.6 text ✓ ExternalIdsSearch area The area contains 2 data fields: Data Field Weight Type OrgStudyId 0.9 text SecondaryId 0.7 text ExternalIdTypesSearch area The area contains 2 data fields: Data Field Weight Type OrgStudyIdType 0.9 enum OrgStudyIdType SecondaryIdType 0.7 enum SecondaryIdType EligibilitySearch area The area contains 2 data fields: Data Field Weight Type EligibilityCriteria 0.95 markup ✓ StudyPopulation 0.8 markup ✓ OutcomeSearch area This is a default search area for a query entered in "Outcome measure" input field of search form in UI. Request parameter: query.outc. The area contains 9 data fields: Data Field Weight Type PrimaryOutcomeMeasure 0.9 text ✓ SecondaryOutcomeMeasure 0.8 text ✓ PrimaryOutcomeDescription 0.6 markup ✓ SecondaryOutcomeDescription 0.5 markup ✓ OtherOutcomeMeasure 0.4 text ✓ OutcomeMeasureTitle 0.4 text ✓ OtherOutcomeDescription 0.3 markup ✓ OutcomeMeasureDescription 0.3 markup ✓ OutcomeMeasurePopulationDescription 0.3 markup ✓ OutcomeNameSearch area The area contains 4 data fields: Data Field Weight Type PrimaryOutcomeMeasure 0.98 text ✓ SecondaryOutcomeMeasure 0.8 text ✓ OtherOutcomeMeasure 0.5 text ✓ OutcomeMeasureTitle 0.3 text ✓ TitleSearch area This is a default search area for a query entered in "Title / acronym" input field of search form in UI. Request parameter: query.titles. The area contains 3 data fields: Data Field Weight Type Acronym 1 text ✓ BriefTitle 0.95 text ✓ OfficialTitle 0.8 text ✓ LocationSearch area This is a default search area for a query entered in "Location terms" input field of search form in UI. Request parameter: query.locn. The area contains 5 data fields: Data Field Weight Type LocationCity 0.95 GeoName LocationState 0.95 GeoName LocationCountry 0.95 text LocationFacility 0.95 text LocationZip 0.35 text ContactSearch area The area contains 4 data fields: Data Field Weight Type OverallOfficialName 0.95 text CentralContactName 0.9 text OverallOfficialAffiliation 0.85 text LocationContactName 0.8 text NCTIdSearch area The area contains 2 data fields: Data Field Weight Type NCTId 1 nct NCTIdAlias 0.9 nct IdSearch area This is a default search area for a query entered in "Study IDs" input field of search form in UI. Request parameter: query.id. The area contains 5 data fields: Data Field Weight Type NCTId 1 nct NCTIdAlias 0.9 nct Acronym 0.85 text ✓ OrgStudyId 0.8 text SecondaryId 0.75 text SponsorSearch area This is a default search area for a query entered in "Sponsor / collaborator" input field of search form in UI. Request parameter: query.spons. The area contains 3 data fields: Data Field Weight Type LeadSponsorName 1 text CollaboratorName 0.9 text OrgFullName 0.6 text FunderTypeSearch area The area contains 2 data fields: Data Field Weight Type LeadSponsorClass 1 enum AgencyClass CollaboratorClass 0.9 enum AgencyClass ResponsiblePartySearch area The area contains 5 data fields: Data Field Weight Type ResponsiblePartyInvestigatorFullName 0.9 text ✓ ResponsiblePartyOldNameTitle 0.8 text ✓ ResponsiblePartyInvestigatorAffiliation 0.8 text ✓ ResponsiblePartyOldOrganization 0.7 text ✓ ResponsiblePartyInvestigatorTitle 0.7 text ✓ PatientSearch area Request parameter: query.patient. The area contains 47 data fields: Data Field Weight Type Acronym 1 text ✓ Condition 0.95 text ✓ BriefTitle 0.9 text ✓ OfficialTitle 0.85 text ✓ ConditionMeshTerm 0.8 text ✓ ConditionAncestorTerm 0.7 text ✓ BriefSummary 0.65 markup ✓ Keyword InterventionName InterventionOtherName PrimaryOutcomeMeasure 0.6 text ✓ StdAge 0.6 enum StandardAge ArmGroupLabel 0.5 text ✓ SecondaryOutcomeMeasure 0.5 text ✓ InterventionDescription 0.45 markup ✓ ArmGroupDescription 0.45 markup ✓ PrimaryOutcomeDescription 0.45 markup ✓ LeadSponsorName 0.4 text OrgStudyId 0.4 text SecondaryId 0.4 text NCTIdAlias 0.4 nct SecondaryOutcomeDescription 0.35 markup ✓ LocationFacility 0.35 text LocationState 0.35 GeoName LocationCountry 0.35 text LocationCity 0.35 GeoName BioSpecDescription 0.3 markup ✓ ResponsiblePartyInvestigatorFullName 0.3 text ✓ ResponsiblePartyInvestigatorTitle 0.3 text ✓ ResponsiblePartyInvestigatorAffiliation 0.3 text ✓ ResponsiblePartyOldNameTitle 0.3 text ✓ ResponsiblePartyOldOrganization 0.3 text ✓ OverallOfficialAffiliation 0.3 text OverallOfficialName 0.3 text CentralContactName 0.3 text DesignInterventionModel 0.3 enum InterventionalAssignment DesignMasking 0.3 enum DesignMasking DesignWhoMasked 0.3 enum WhoMasked DesignObservationalModel 0.3 enum ObservationalModel DesignPrimaryPurpose 0.3 enum PrimaryPurpose DesignTimePerspective 0.3 enum DesignTimePerspective InterventionMeshTerm 0.3 text ✓ InterventionAncestorTerm 0.25 text ✓ CollaboratorName 0.25 text OtherOutcomeMeasure 0.15 text ✓ OtherOutcomeDescription 0.1 markup ✓ LocationContactName 0.1 text Last updated on June 07, 2024