> ## 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.

# Interventional study (clinical trial)

A research study where participants are assigned to receive specific treatments or procedures (or no treatment) to evaluate their effects on health outcomes.

## Related terms

<CardGroup cols={3}>
  <Card title="Clinical trial" href="clinical_trial" />

  <Card title="Intervention/treatment" href="interventiontreatment" />

  <Card title="Observational study" href="observational_study" />

  <Card title="Primary outcome measure" href="primary_outcome_measure" />

  <Card title="Secondary outcome measure" href="secondary_outcome_measure" />
</CardGroup>

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