# Sub-chronic Effects of 5-hydroxytryptophan on Mood and Emotional Processing in Healthy Volunteers

> **NCT01514409** · NA · COMPLETED · sponsor: **Northumbria University** · enrollment: 33 (actual)

## Conditions studied

- Mood

## Interventions

- **DIETARY_SUPPLEMENT:** 5-Hydroxytryptophan
- **DIETARY_SUPPLEMENT:** Pharmaceutical grade silica

## Key facts

- **NCT ID:** NCT01514409
- **Lead sponsor:** Northumbria University
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2011-05
- **Primary completion:** 2011-08
- **Final completion:** 2011-08
- **Target enrollment:** 33 (ACTUAL)
- **Last updated:** 2012-01-23


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01514409

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01514409, "Sub-chronic Effects of 5-hydroxytryptophan on Mood and Emotional Processing in Healthy Volunteers". Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/clinical/NCT01514409. Licensed CC0.

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