# Serotonin Function During Depression

> **NCT00033787** · — · COMPLETED · sponsor: **National Institute of Mental Health (NIMH)** · enrollment: 450 (—)

## Conditions studied

- Depression, Involutional
- Healthy

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT00033787
- **Lead sponsor:** National Institute of Mental Health (NIMH)
- **Sponsor class:** NIH
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2002-04-05
- **Primary completion:** 2005-04-30
- **Final completion:** 2005-04-30
- **Target enrollment:** 450 (—)
- **Last updated:** 2017-07-02


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00033787

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00033787, "Serotonin Function During Depression". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT00033787. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*