> ## Documentation Index
> Fetch the complete documentation index at: https://glossary.micahealth.com/llms.txt
> Use this file to discover all available pages before exploring further.

# NCT number

A unique ID starting with "NCT" followed by 8 digits, assigned to each study registered on ClinicalTrials.gov.

## Related terms

<CardGroup cols={3}>
  <Card title="Phase" href="phase" />
</CardGroup>

[*Source*](https://clinicaltrials.gov/study-basics/glossary)