Pricing

$0.01 / 1,000 clinical studies

ClinicalTrials.gov

Search ClinicalTrials.gov by words, condition, intervention, sponsor, location, status, or phase. Get study details, eligibility, sites, outcomes, dates, and source links.

Pricing

$0.01 / 1,000 clinical studies

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Maxime Dupré

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3 days ago

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You can access the ClinicalTrials.gov programmatically from your own applications by using the Apify API. You can also choose the language preference from below. To use the Apify API, you’ll need an Apify account and your API token, found in Integrations settings in Apify Console.

Python

JavaScript

CLI

OpenAPI

HTTP

MCP

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  },
  "components": {
    "schemas": {
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        "required": [
          "target"
        ],
        "properties": {
          "target": {
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            "enum": [
              "search",
              "nctId"
            ],
            "type": "string",
            "description": "Choose whether to search studies or get one study by its NCT ID.",
            "default": "search"
          },
          "query": {
            "title": "Search words",
            "type": "string",
            "description": "Find studies that match these words in their registry record. You can leave this blank when you use another search field.",
            "default": "diabetes"
          },
          "conditions": {
            "title": "Conditions",
            "uniqueItems": true,
            "type": "array",
            "description": "Find studies for any of these conditions or diseases.",
            "items": {
              "type": "string",
              "minLength": 1
            }
          },
          "interventions": {
            "title": "Interventions",
            "uniqueItems": true,
            "type": "array",
            "description": "Find studies for any of these drugs, devices, treatments, or other interventions.",
            "items": {
              "type": "string",
              "minLength": 1
            }
          },
          "sponsors": {
            "title": "Sponsors",
            "uniqueItems": true,
            "type": "array",
            "description": "Find studies linked to any of these sponsor names.",
            "items": {
              "type": "string",
              "minLength": 1
            }
          },
          "locations": {
            "title": "Locations",
            "uniqueItems": true,
            "type": "array",
            "description": "Find studies at any of these countries, states, cities, or facility names.",
            "items": {
              "type": "string",
              "minLength": 1
            }
          },
          "statuses": {
            "title": "Recruitment statuses",
            "uniqueItems": true,
            "type": "array",
            "description": "Keep studies with any selected recruitment status.",
            "items": {
              "type": "string",
              "enum": [
                "NOT_YET_RECRUITING",
                "RECRUITING",
                "ENROLLING_BY_INVITATION",
                "ACTIVE_NOT_RECRUITING",
                "SUSPENDED",
                "TERMINATED",
                "COMPLETED",
                "WITHDRAWN",
                "UNKNOWN",
                "AVAILABLE",
                "NO_LONGER_AVAILABLE",
                "TEMPORARILY_NOT_AVAILABLE",
                "APPROVED_FOR_MARKETING"
              ],
              "enumTitles": [
                "Not yet recruiting",
                "Recruiting",
                "Enrolling by invitation",
                "Active, not recruiting",
                "Suspended",
                "Terminated",
                "Completed",
                "Withdrawn",
                "Unknown",
                "Available",
                "No longer available",
                "Temporarily not available",
                "Approved for marketing"
              ]
            }
          },
          "phases": {
            "title": "Phases",
            "uniqueItems": true,
            "type": "array",
            "description": "Keep studies in any selected clinical trial phase.",
            "items": {
              "type": "string",
              "enum": [
                "EARLY_PHASE1",
                "PHASE1",
                "PHASE2",
                "PHASE3",
                "PHASE4",
                "NA"
              ],
              "enumTitles": [
                "Early Phase 1",
                "Phase 1",
                "Phase 2",
                "Phase 3",
                "Phase 4",
                "Not applicable"
              ]
            }
          },
          "studyTypes": {
            "title": "Study types",
            "uniqueItems": true,
            "type": "array",
            "description": "Keep studies with any selected study type.",
            "items": {
              "type": "string",
              "enum": [
                "INTERVENTIONAL",
                "OBSERVATIONAL",
                "EXPANDED_ACCESS"
              ],
              "enumTitles": [
                "Interventional",
                "Observational",
                "Expanded access"
              ]
            }
          },
          "sort": {
            "title": "Sort by",
            "enum": [
              "RELEVANCE",
              "POST_DATE_DESC",
              "UPDATE_DATE_DESC",
              "ENROLLMENT_DESC"
            ],
            "type": "string",
            "description": "Choose how to order matching studies.",
            "default": "RELEVANCE"
          },
          "maxResults": {
            "title": "Maximum studies",
            "minimum": 1,
            "maximum": 50000,
            "type": "integer",
            "description": "Set the most studies to deliver. A lower number makes a smaller run.",
            "default": 100
          },
          "nctId": {
            "title": "NCT ID",
            "pattern": "^NCT[0-9]{8}$",
            "type": "string",
            "description": "Enter the ClinicalTrials.gov ID for one study, such as NCT04280705."
          },
          "__isDebug": {
            "title": "Debug mode",
            "type": "boolean",
            "description": "Internal debug setting."
          }
        }
      },
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            "type": "object",
            "properties": {
              "id": {
                "type": "string"
              },
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                "type": "string"
              },
              "userId": {
                "type": "string"
              },
              "startedAt": {
                "type": "string",
                "format": "date-time",
                "example": "2025-01-08T00:00:00.000Z"
              },
              "finishedAt": {
                "type": "string",
                "format": "date-time",
                "example": "2025-01-08T00:00:00.000Z"
              },
              "status": {
                "type": "string",
                "example": "READY"
              },
              "meta": {
                "type": "object",
                "properties": {
                  "origin": {
                    "type": "string",
                    "example": "API"
                  },
                  "userAgent": {
                    "type": "string"
                  }
                }
              },
              "stats": {
                "type": "object",
                "properties": {
                  "inputBodyLen": {
                    "type": "integer",
                    "example": 2000
                  },
                  "rebootCount": {
                    "type": "integer",
                    "example": 0
                  },
                  "restartCount": {
                    "type": "integer",
                    "example": 0
                  },
                  "resurrectCount": {
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                    "example": 0
                  },
                  "computeUnits": {
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                    "example": 0
                  }
                }
              },
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                "type": "object",
                "properties": {
                  "build": {
                    "type": "string",
                    "example": "latest"
                  },
                  "timeoutSecs": {
                    "type": "integer",
                    "example": 300
                  },
                  "memoryMbytes": {
                    "type": "integer",
                    "example": 1024
                  },
                  "diskMbytes": {
                    "type": "integer",
                    "example": 2048
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                }
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              "buildId": {
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              "defaultKeyValueStoreId": {
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              "defaultDatasetId": {
                "type": "string"
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              "defaultRequestQueueId": {
                "type": "string"
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              "buildNumber": {
                "type": "string",
                "example": "1.0.0"
              },
              "containerUrl": {
                "type": "string"
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              "usage": {
                "type": "object",
                "properties": {
                  "ACTOR_COMPUTE_UNITS": {
                    "type": "integer",
                    "example": 0
                  },
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                    "example": 0
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                  },
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                    "type": "integer",
                    "example": 1
                  },
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                    "type": "integer",
                    "example": 0
                  },
                  "REQUEST_QUEUE_READS": {
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                    "example": 0
                  },
                  "REQUEST_QUEUE_WRITES": {
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                    "example": 0
                  },
                  "DATA_TRANSFER_INTERNAL_GBYTES": {
                    "type": "integer",
                    "example": 0
                  },
                  "DATA_TRANSFER_EXTERNAL_GBYTES": {
                    "type": "integer",
                    "example": 0
                  },
                  "PROXY_RESIDENTIAL_TRANSFER_GBYTES": {
                    "type": "integer",
                    "example": 0
                  },
                  "PROXY_SERPS": {
                    "type": "integer",
                    "example": 0
                  }
                }
              },
              "usageTotalUsd": {
                "type": "number",
                "example": 0.00005
              },
              "usageUsd": {
                "type": "object",
                "properties": {
                  "ACTOR_COMPUTE_UNITS": {
                    "type": "integer",
                    "example": 0
                  },
                  "DATASET_READS": {
                    "type": "integer",
                    "example": 0
                  },
                  "DATASET_WRITES": {
                    "type": "integer",
                    "example": 0
                  },
                  "KEY_VALUE_STORE_READS": {
                    "type": "integer",
                    "example": 0
                  },
                  "KEY_VALUE_STORE_WRITES": {
                    "type": "number",
                    "example": 0.00005
                  },
                  "KEY_VALUE_STORE_LISTS": {
                    "type": "integer",
                    "example": 0
                  },
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                    "example": 0
                  },
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                  },
                  "DATA_TRANSFER_INTERNAL_GBYTES": {
                    "type": "integer",
                    "example": 0
                  },
                  "DATA_TRANSFER_EXTERNAL_GBYTES": {
                    "type": "integer",
                    "example": 0
                  },
                  "PROXY_RESIDENTIAL_TRANSFER_GBYTES": {
                    "type": "integer",
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                  "PROXY_SERPS": {
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}

ClinicalTrials.gov Clinical Trial Data Search OpenAPI definition

OpenAPI is a standard for designing and describing RESTful APIs, allowing developers to define API structure, endpoints, and data formats in a machine-readable way. It simplifies API development, integration, and documentation.

OpenAPI is effective when used with AI agents and GPTs by standardizing how these systems interact with various APIs, for reliable integrations and efficient communication.

By defining machine-readable API specifications, OpenAPI allows AI models like GPTs to understand and use varied data sources, improving accuracy. This accelerates development, reduces errors, and provides context-aware responses, making OpenAPI a core component for AI applications.

You can download the OpenAPI definitions for ClinicalTrials.gov from the options below:

OpenAPI.json

If you’d like to learn more about how OpenAPI powers GPTs, read our blog post.

You can also check out our other API clients:

ClinicalTrials.gov API in Python

ClinicalTrials.gov API in JavaScript

ClinicalTrials.gov API through CLI

ClinicalTrials.gov API

ClinicalTrials.gov Study Crawler

jungle_synthesizer/clinicaltrials-gov-crawler

Crawl 500K+ clinical trial records from ClinicalTrials.gov via the v2 API. Extract study details, conditions, interventions, sponsors, phases, enrollment, eligibility, outcomes, and locations. Filter by condition, intervention, sponsor, phase, status, and study type.

BowTiedRaccoon

ClinicalTrials.gov Scraper

datamule/clinicaltrials-gov-scraper

Scrape clinical-trial records from the official ClinicalTrials.gov v2 REST API. Query by condition, intervention, sponsor, status, phase or free text. One record per study — NCT id, title, status, phase, sponsor, conditions, interventions, enrollment, dates, locations + the raw study. Pay per study.

Datamule

ClinicalTrials.gov Study Search

scrupulous_waterbird_m4w/clinical-trials-gov

Search ClinicalTrials.gov's public v2 API by condition, intervention, sponsor, location, status, and date. Export structured trial records with NCT IDs, phases, sponsors, locations, dates, and summaries.

Mori

ClinicalTrials.gov Studies Scraper

chrisp1211/clinicaltrials-scraper-max

Scrape clinical trials from ClinicalTrials.gov by condition, intervention or sponsor. Returns NCT ID, title, status, phase, sponsor, enrollment and locations. No API key. Pay per study; empty or failed runs cost nothing.

Christian Pichichero

ClinicalTrials.gov Study Scraper

automation-lab/clinicaltrials-gov-study-scraper

Monitor ClinicalTrials.gov studies by condition, sponsor, location, status, date window, or NCT ID using the official public API.

Stas Persiianenko

ClinicalTrials.gov Scraper — Trial Intelligence

hipersoft/clinicaltrials-scraper

Search ClinicalTrials.gov for clinical trials by condition, drug or sponsor and get status, phase, interventions, sponsors, enrollment, dates, eligibility, outcomes and locations. For pharma, biotech and medical research. No key.

hiper soft

ClinicalTrials.gov API - Clinical Study Data

alizarin_refrigerator-owner/clinicaltrials-gov-api---clinical-study-data

ClinicalTrials.gov API - Clinical Study Data & Trial Registry Access ClinicalTrials.gov data for clinical studies worldwide. Search trials by condition, intervention, sponsor, phase, or location. Track drug development pipelines and find recruiting studies.

The Howlers

ClinicalTrials.gov Scraper

solidcode/clinicaltrials-gov-scraper

[💰 $2.5 / 1K] Extract clinical trials from ClinicalTrials.gov: titles, conditions, interventions, sponsors, status, phase, eligibility, locations, dates, and results. Search by condition, treatment, sponsor, or location.

SolidCode

ClinicalTrials.gov Scraper (Trials, Sponsors & Investigators)

cblu/clinical-trials-scraper

Search ClinicalTrials.gov (official NIH API v2): filter by condition, intervention, phase, status, sponsor type, and site location. Flat JSON with sponsor, sites, and named principal investigators with contacts. Pay per study.

Steven Carleton

ClinicalTrials.gov Scraper

pear_today/clinical-trials-scraper

Scrape clinical trials from ClinicalTrials.gov. Search by condition, drug, sponsor, phase, status. Extract NCT IDs, sponsors, enrollment, eligibility, outcomes, locations. No API key needed. For pharma, biotech, VCs, researchers.