# Adjunctive Bright Light Therapy for Patients With Depression

> **NCT04633707** · NA · UNKNOWN · sponsor: **Guangzhou Psychiatric Hospital** · enrollment: 159 (estimated)

## Conditions studied

- Depressive Disorder
- Light Therapy

## Interventions

- **DEVICE:** adjunctive bright white light therapy in the morning
- **DEVICE:** adjunctive bright white light therapy in the afternoon
- **DEVICE:** adjunctive dim red light therapy in the afternoon

## Key facts

- **NCT ID:** NCT04633707
- **Lead sponsor:** Guangzhou Psychiatric Hospital
- **Sponsor class:** OTHER_GOV
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2021-03
- **Primary completion:** 2022-05
- **Final completion:** 2022-07
- **Target enrollment:** 159 (ESTIMATED)
- **Last updated:** 2021-03-23


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04633707

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04633707, "Adjunctive Bright Light Therapy for Patients With Depression". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT04633707. Licensed CC0.

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