# ClinicalTrials.gov Monitor - Studies, Status, Phases

Search and monitor ClinicalTrials.gov studies via the official v2 API. Filter by condition, status, phase or keyword. One clean row per study. No API key.

Canonical product page: https://mayd-it.com/data-tools/actors/clinicaltrials-gov-monitor/
Public Actor: https://apify.com/maydit/clinicaltrials-gov-monitor

## Example input

```json
{
  "query": "diabetes",
  "maxResults": 10,
  "pageSize": 25,
  "maxRunSeconds": 240
}
```

## Full guide

![Study records for a focused cohort — illustrative workflow](https://api.apify.com/v2/key-value-stores/YGxD9JRpduom8Q5Zd/records/clinicaltrials-gov-monitor-883094355c51.png?signature=12nZdqY2QdKS68CNbeTzi)

## Study records for a focused cohort

Create a structured starting point for clinical research or biopharma intelligence from the official ClinicalTrials.gov v2 API. Each row is a registered study, with its identifier and official page link.

[Open this Actor in Console](https://console.apify.com/actors/HPLxKS44okCgsQgRJ/input) · [First run](#try-this-actor) · [Results](#result-preview) · [Cost](#usage-and-pricing) · [Full guide](#full-guide)

## Try this Actor

1. **Choose a small scope.** Use the existing `diabetes` query prefill and maximum of twenty-five studies for the initial sample. Add condition, status or phase filters only when you want to narrow that query.
2. **Run and review.** Open the dataset's study table and the run's key-value-store `SUMMARY`. Check source coverage and limits before treating a sample as a complete cohort.
3. **Use the results.** Export CSV for a study list or JSON for phase and condition arrays. Retain the NCT ID and official study link for follow-up review.

**Read this before using the data:** These are registry records, not an assessment of treatment effectiveness or individual eligibility. Phase and date fields may be absent. This version does not interpret eligibility criteria or results modules.

## Result preview

The dataset view highlights these columns:

- **NCT ID** · `nctId`
- **Study title** · `briefTitle`
- **Published study status** · `overallStatus`
- **Phases** · `phases`
- **Conditions** · `conditions`
- **Study start date** · `startDate`

Use the original source links and the field definitions below when interpreting the results. CSV works well for flat columns; JSON preserves nested values.

## Usage and pricing

Base result rate on the FREE tier: **$2 per 1,000 results**. The [Pricing tab](https://apify.com/maydit/clinicaltrials-gov-monitor/pricing) shows your plan's result rate and any Actor Start charge. Set a small result limit for the first run; the requested limit is not a guarantee of that many results.

---

## Full guide

> Search and monitor **ClinicalTrials.gov** studies through the official **API v2**. No API key required.

### What it does

Queries `https://clinicaltrials.gov/api/v2/studies` and returns one normalized row per study: NCT id, titles, overall status, phases, conditions, key dates, organization, and a source link.

### Who it's for

- Clinical / medical affairs teams tracking competing trials
- Biopharma BD and competitive-intelligence analysts
- Researchers building trial cohorts by condition or phase
- Developers who want structured CT.gov data without maintaining query plumbing

### Output

| Field | Description |
|---|---|
| `nctId` | ClinicalTrials.gov identifier |
| `briefTitle` / `officialTitle` | Study titles |
| `overallStatus` | e.g. RECRUITING, COMPLETED |
| `phases` | Phase list when present |
| `conditions` | Condition list |
| `startDate` / `lastUpdatePostDate` | Key dates |
| `organization` | Lead organization name |
| `sourceUrl` | Official study page |

### Input

- **Search query** - free text (default demo: `diabetes` when empty)
- **Condition** - optional `query.cond`
- **Statuses / Phases** - optional filters
- **Max results** - default 25 (fast sample)
- **Max run seconds** - wall-clock budget (default 240)

### Pricing note

Runs are billed per dataset row on Apify. New accounts can usually cover small default runs with monthly free credits.

### Limitations

- Uses only the public v2 API; does not scrape the website HTML.
- Some studies omit phase or dates; those fields are null when absent.
- Does not interpret eligibility criteria or results modules in this version.

### Result accounting

Only real source records are written to the dataset. `SUMMARY.total` counts saved rows. A dataset spending cap stops further writes and sets `SUMMARY.stoppedOnChargeLimit` and `SUMMARY.incomplete`. Source failures and time limits are reported in the summary; they do not generate substitute result rows.

## Help with your run

Open the **Issues** tab on this Actor with the run URL, the input field that caused trouble and what you expected to receive. Remove API keys and private information before posting.

[Explore more Mayd-It Actors](https://apify.com/maydit)

## Understand your run

Open **Run report** in the run’s Output tab for saved-record counts, reported source issues and limits, and suggested next steps. Use **CSV export** to take the saved results into a spreadsheet. The existing JSON results and detailed machine-readable summary remain available.

The report reflects this run’s recorded coverage. A successful run or a saved result does not establish that every possible source record was collected.