clinicaltrials_get_study_count

Parameters schema

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "query": {
      "type": "string",
      "description": "General free-text search across all fields. Plain words plus AND, OR, NOT. `[ ]` are reserved (advancedFilter AREA[] only); `( )` group sub-expressions and work when matched; `,` acts as AND. For field-scoped searches, use the dedicated *Query parameters (conditionQuery, interventionQuery, etc.) or advancedFilter with AREA[FieldName]value."
    },
    "titleQuery": {
      "type": "string",
      "description": "Search within study titles and acronyms only. Plain words plus AND/OR/NOT. `[ ]` are reserved; `( )` group sub-expressions when matched; `,` acts as AND."
    },
    "phaseFilter": {
      "anyOf": [
        {
          "type": "string",
          "description": "A single phase value."
        },
        {
          "type": "array",
          "items": {
            "type": "string"
          },
          "description": "Multiple phase values (OR)."
        }
      ],
      "description": "Filter by trial phase. Values: EARLY_PHASE1, PHASE1, PHASE2, PHASE3, PHASE4, NA."
    },
    "outcomeQuery": {
      "type": "string",
      "description": "Search within outcome measure fields. Plain words plus AND/OR/NOT. `[ ]` are reserved; `( )` group sub-expressions when matched; `,` acts as AND."
    },
    "sponsorQuery": {
      "type": "string",
      "description": "Sponsor/collaborator name search. Plain words plus AND/OR/NOT. `[ ]` are reserved; `( )` group sub-expressions when matched; `,` acts as AND."
    },
    "statusFilter": {
      "anyOf": [
        {
          "type": "string",
          "description": "A single status value."
        },
        {
          "type": "array",
          "items": {
            "type": "string"
          },
          "description": "Multiple status values (OR)."
        }
      ],
      "description": "Filter by study status. Values: RECRUITING, COMPLETED, ACTIVE_NOT_RECRUITING, NOT_YET_RECRUITING, ENROLLING_BY_INVITATION, SUSPENDED, TERMINATED, WITHDRAWN, UNKNOWN, WITHHELD, NO_LONGER_AVAILABLE, AVAILABLE, APPROVED_FOR_MARKETING, TEMPORARILY_NOT_AVAILABLE."
    },
    "locationQuery": {
      "type": "string",
      "description": "Location search — city, state, country, or facility name. Plain words plus AND/OR/NOT. `[ ]` are reserved; `( )` group sub-expressions when matched; `,` acts as AND."
    },
    "advancedFilter": {
      "type": "string",
      "description": "Advanced filter using AREA[FieldName]value syntax. Examples: \"AREA[StudyType]INTERVENTIONAL\", \"AREA[EnrollmentCount]RANGE[100, 1000]\", \"AREA[Phase]PHASE2 AND AREA[StudyType]INTERVENTIONAL\", \"(AREA[Phase]PHASE3 OR AREA[Phase]PHASE4) AND AREA[StudyType]INTERVENTIONAL\". AND/OR/NOT join complete AREA[FieldName]value expressions; parentheses group them. Call clinicaltrials_get_field_definitions to find AREA[]-compatible field names."
    },
    "conditionQuery": {
      "type": "string",
      "description": "Condition/disease-specific search. E.g., \"Type 2 Diabetes\", \"non-small cell lung cancer\". Plain words plus AND/OR/NOT. `[ ]` are reserved; `( )` group sub-expressions when matched; `,` acts as AND."
    },
    "interventionQuery": {
      "type": "string",
      "description": "Intervention/treatment search. E.g., \"pembrolizumab\", \"cognitive behavioral therapy\". Plain words plus AND/OR/NOT. `[ ]` are reserved; `( )` group sub-expressions when matched; `,` acts as AND."
    },
    "includeUnknownEnrollment": {
      "type": "boolean",
      "default": false,
      "description": "Include studies whose EnrollmentCount is the upstream \"unknown\" sentinel (99999999). Excluded by default — the sentinel pollutes RANGE[N, MAX] queries. Set true for data-quality audits."
    }
  }
}

• Data resourceClinicalTrials.gov API

  NIH · science

  name mention0.85

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