---
id: "nct_number"
kind: "datatype"
status: "draft"
is_pii: false
categories: ["medical", "science"]
langs: ["common"]
quality: 80
url: "http://registry.apicrafter.io/datatype/nct_number"
---

# ClinicalTrials.gov identifier (NCT number) (`nct_number`)

> **Draft.** Draft records have not been reviewed yet and may be incomplete or wrong; do not treat them as authoritative for legal or compliance decisions.

Registration number of a clinical study in ClinicalTrials.gov, the registry of the US National Library of Medicine: NCT and eight digits.

- Personal data (PII): no
- Categories: Medical/pharma identifiers (medical), Scientific (science)
- Countries: global
- Languages: Common to most languages (common)
- Classification: identifier

## Detection

Regular expression (Python `re`):

```
^NCT\d{8}$
```

## Examples

- `NCT00243178` — Atrial Fibrillation Clopidogrel Trial With Irbesartan for Prevention of Vascular Events
- `NCT04315948` — Trial of Treatments for COVID-19 in Hospitalized Adults

## Mappings

- bioregistry: `clinicaltrials`
- fhir: `https://clinicaltrials.gov/nctid`
- wikidata: `P3098`

## Sources

- wikipedia: <https://en.wikipedia.org/wiki/ClinicalTrials.gov>
- doc: <https://clinicaltrials.gov/>
- wikidata: <https://www.wikidata.org/wiki/Property:P3098>

## Quality

Score 80/100. Missing: negative example, translation, detector coverage.

JSON: <http://registry.apicrafter.io/api/v1/datatypes/nct_number.json> · Edit: <https://github.com/apicrafter/metacrafter-registry/edit/main/data/datatypes/any/medical/nct_number.yaml>