# ClinicalTrials.gov Studies - Search 600K Trials (`j0401/clinicaltrials-studies`) Actor

Search ClinicalTrials.gov's 600K+ registered studies: condition, intervention, sponsor, phase, status, study type, sex, location and date windows. Returns sponsors, enrollment, eligibility, outcomes and site count. No API key.

- **URL**: https://apify.com/j0401/clinicaltrials-studies.md
- **Developed by:** [Wenhao Yang](https://apify.com/j0401) (community)
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $0.03 / 1,000 clinicaltrials.gov study records

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.
Since this Actor supports Apify Store discounts, the price gets lower the higher subscription plan you have.

Learn more: https://docs.apify.com/actors/running/actors-in-store.md#pay-per-event

## What's an Apify Actor?

An Actor is a serverless cloud program that runs on the Apify platform. It has two run modes.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.

Apify vocabulary and the platform model are defined once, in the agent quickstart at https://apify.com/agents.md.

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For examples already wired to this Actor's own input schema, see the [API](#api) section below.

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).

# README

## ClinicalTrials.gov Studies - Search 600K Trials

The public ClinicalTrials.gov registry: **607,529 registered studies** as of
**20 October 2026**. Search by condition, intervention, sponsor, location,
status, phase, study type, sex or date, and get the study facts that matter
for pipeline, BD and clinical-intelligence work.

### Low cost

**From $0.00005 per record, down to $0.00003 at Gold.** Pay only for the
studies you receive.

### What you get per study

| field | meaning |
|---|---|
| `nctId` | registry identifier, e.g. `NCT06022965` |
| `briefTitle`, `officialTitle` | study titles |
| `overallStatus` | `Recruiting`, `Active, not recruiting`, `Completed`, `Terminated`, ... |
| `studyType`, `phase` | interventional / observational and phase |
| `conditions`, `interventions` | conditions studied and interventions tested |
| `leadSponsor`, `sponsorClass`, `collaborators` | sponsor and collaborators (NIH, industry, other) |
| `enrollmentCount`, `enrollmentType` | target or actual enrollment |
| `startDate`, `primaryCompletionDate`, `completionDate` | study timeline |
| `firstPostedDate`, `lastUpdatePostDate` | registry publication and update dates |
| `sex`, `minimumAge`, `maximumAge`, `healthyVolunteers` | eligibility summary |
| `locations`, `locationCount` | trial sites (facility, city, state, zip, country) |
| `briefSummary` | sponsor's plain-language summary |
| `sourceUrl` | the study page on ClinicalTrials.gov |

### Search it

- **Condition** - `condition="diabetes"`.
- **Intervention** - `intervention="pembrolizumab"`.
- **Sponsor** - `sponsor="Novo Nordisk"`.
- **Location** - `location="Texas"`.
- **Status** - `status="RECRUITING"` (comma-separate several).
- **Phase** - `phase="PHASE3"` (`EARLY_PHASE1`, `PHASE1`-`PHASE4`, `NA`).
- **Study type** - `studyType="INTERVENTIONAL"`.
- **Dates** - `updatedFrom` / `updatedTo` for registry updates;
  `startFrom` / `startTo` for study start dates.

### Example inputs

**Recruiting phase-3 diabetes trials**

```json
{ "condition": "diabetes", "status": "RECRUITING", "phase": "PHASE3",
  "maxResults": 50 }
```

**One sponsor's pipeline**

```json
{ "sponsor": "Novo Nordisk", "studyType": "INTERVENTIONAL",
  "maxResults": 50 }
```

**One intervention across all phases**

```json
{ "intervention": "pembrolizumab", "maxResults": 100 }
```

**Recently updated studies in Texas**

```json
{ "location": "Texas", "updatedFrom": "2026-10-01", "maxResults": 50 }
```

**Studies starting in a window**

```json
{ "condition": "breast cancer", "startFrom": "2027-01-01",
  "startTo": "2027-12-31", "maxResults": 50 }
```

### Example output

Long list fields are trimmed here; real rows carry every value.

```json
{
 "nctId": "NCT06763328",
 "briefTitle": "Metformin for the Treatment of Insulin Resistance in Women With Stage I-III Breast Cancer Completing Chemotherapy",
 "overallStatus": "RECRUITING",
 "studyType": "INTERVENTIONAL",
 "phase": "PHASE3",
 "conditions": "Anatomic Stage I Breast Cancer AJCC v8; Invasive Breast Carcinoma",
 "interventions": "Biospecimen Collection; Extended Release Metformin Hydrochloride",
 "leadSponsor": "City of Hope Medical Center",
 "sponsorClass": "OTHER",
 "collaborators": "National Cancer Institute (NCI)",
 "enrollmentCount": "80",
 "enrollmentType": "ESTIMATED",
 "startDate": "2025-01-13",
 "primaryCompletionDate": "2031-06-16",
 "completionDate": "2031-06-16",
 "firstPostedDate": "2025-01-08",
 "lastUpdatePostDate": "2026-10-19",
 "sex": "FEMALE",
 "minimumAge": "18 Years",
 "healthyVolunteers": "No",
 "locationCount": 3,
 "sourceUrl": "https://clinicaltrials.gov/study/NCT06763328"
}
```

### Notes on the data, from the source

- **One row = one registered study**, not one site. Multi-site studies carry
  their locations in `locations` (up to 2,000 characters) and the full site
  count in `locationCount`.
- **Sponsor-submitted.** ClinicalTrials.gov is a registry, not an
  independently verified audit: statuses and dates are as submitted by the
  sponsor.
- **No personal contact data.** Contacts and overall officials are excluded;
  the actor returns institution, city and country only.
- **Default run** returns the 50 most recently updated studies.
- **Public data.** ClinicalTrials.gov is a service of the U.S. National
  Library of Medicine and its registry data is publicly available.

Data source: `clinicaltrials.gov` API v2 (U.S. National Library of Medicine).

# Actor input Schema

## `keyword` (type: `string`):

Free-text search across the study record, e.g. "CAR-T".

## `condition` (type: `string`):

Disease or condition, e.g. "diabetes", "breast cancer".

## `intervention` (type: `string`):

Drug, device, procedure or other intervention, e.g. "pembrolizumab".

## `sponsor` (type: `string`):

Lead sponsor or collaborator, e.g. "Novo Nordisk".

## `location` (type: `string`):

Trial site place name, e.g. "Texas", "London".

## `status` (type: `string`):

One or more of RECRUITING, ACTIVE_NOT_RECRUITING, COMPLETED, ENROLLING_BY_INVITATION, NOT_YET_RECRUITING, SUSPENDED, TERMINATED, WITHDRAWN, EXPANDED_ACCESS, UNKNOWN (comma-separated).

## `phase` (type: `string`):

Trial phase. Leave blank for all phases.

## `studyType` (type: `string`):

Interventional, observational or expanded access.

## `sex` (type: `string`):

Eligibility sex as registered.

## `updatedFrom` (type: `string`):

Inclusive lower bound on the registry last-update date.

## `updatedTo` (type: `string`):

Inclusive upper bound on the registry last-update date.

## `startFrom` (type: `string`):

Inclusive lower bound on the study start date.

## `startTo` (type: `string`):

Inclusive upper bound on the study start date.

## `maxResults` (type: `integer`):

Cap the number of studies pushed (0 = the default 50, maximum 5000).

## Actor input object example

```json
{
  "maxResults": 50
}
```

# Actor output Schema

## `recordsUrl` (type: `string`):

ClinicalTrials.gov study records - as JSON

## `datasetUrl` (type: `string`):

No description

## `runUrl` (type: `string`):

No description

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {};

// Run the Actor and wait for it to finish
const run = await client.actor("j0401/clinicaltrials-studies").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = {}

# Run the Actor and wait for it to finish
run = client.actor("j0401/clinicaltrials-studies").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{}' |
apify call j0401/clinicaltrials-studies --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,j0401/clinicaltrials-studies"
        }
    }
}
```

The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer <APIFY_API_TOKEN>` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations).

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/0VxlE3K10tlg2PD2W/builds/jnMbPeWViYcNKzgFl/openapi.json