> ## 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.

# Phase Not Applicable

A label for studies that don't fit into FDA phase categories, such as those testing medical devices or behavioral treatments.

## Related terms

<CardGroup cols={3}>
  <Card title="Adverse event" href="adverse_event" />
</CardGroup>

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