> ## 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.

# Cross-over assignment

A study design where participants receive different treatments at different phases, "crossing over" from one treatment to another in a specified order.

## Related terms

<CardGroup cols={3}>
  <Card title="U.S. Food and Drug Administration (FDA)" href="us_food_and_drug_administration_fda" />

  <Card title="Expanded access type" href="expanded_access_type" />
</CardGroup>

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