# Investigating the Role of Serotonin in Emotional Processing Through the Use of Tryptophan Depletion

> **NCT00090831** · — · COMPLETED · sponsor: **National Institute of Mental Health (NIMH)** · enrollment: 91 (actual)

## Conditions studied

- Healthy

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT00090831
- **Lead sponsor:** National Institute of Mental Health (NIMH)
- **Sponsor class:** NIH
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2004-08-31
- **Primary completion:** —
- **Final completion:** 2012-09-17
- **Target enrollment:** 91 (ACTUAL)
- **Last updated:** 2019-12-03


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00090831

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00090831, "Investigating the Role of Serotonin in Emotional Processing Through the Use of Tryptophan Depletion". Retrieved via AI Analytics 2026-06-09 from https://api.ai-analytics.org/clinical/NCT00090831. Licensed CC0.

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