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NCT00269633 · ClinicalTrials.gov registry record · Phase 2
Research Study of Treatment for Winter Depression With Different Colors of Light
A Phase 2 study, sponsored by Thomas Jefferson University.
- Completed
- Registry status
- Phase 2
- Development phase
- 9
- Enrollment target
NCT00269633: Completed Phase 2 study, sponsored by Thomas Jefferson University.
NCT00269633 is a Phase 2 study that has completed, run by Thomas Jefferson University. The registered enrollment target is 9 participants, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (93% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00269633, a Phase 2 study, has completed, sponsored by Thomas Jefferson University.
- COMPLETED
- Registry status
- Phase 2
- Development phase
- 9 participants
- Enrollment target
Study Summary
The specific aim of this study is to test the hypothesis that light stimuli concentrated around 467 nm will evoke a significantly stronger therapeutic response in SAD patients compared to light stimuli concentrated around 657 nm at an equal photon density. The secondary objective of this study is to determine the efficacy of different colors and levels of light in order to optimize therapeutic benefit, while also minimizing side effects and maintaining safety of light exposure.
Primary Outcome
Outcome for Structured Interview Guide for the Hamilton Depression Scale - Seasonal Affective Disorder Version (SIGH-SAD) reported is the average over 3 weeks. Lower values represent less depressive symptoms. Range is 0-53.
Interventions
- DEVICE Blue Light Box 467 nm
- DEVICE Red Light Box 657 nm
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 9 participants |
| Start Date | 2006-11 |
| Est. Completion | 2008-05 |
| Phase | Phase 2 |
What the finished NCT00269633 record still lists
NCT00269633 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 9 participants, a relatively small participant target, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (93% lower).
The record links to 0 conditions, and to 2 interventions - of which Blue Light Box 467 nm is the first listed.
NCT00269633 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00269633 about?
NCT00269633 is a clinical study titled "Research Study of Treatment for Winter Depression With Different Colors of Light". The specific aim of this study is to test the hypothesis that light stimuli concentrated around 467 nm will evoke a significantly stronger therapeutic response in SAD patients compared to light stimuli concentrated around 657 nm at an equal photon density. The secondary objective of this study is t...
What is the current status of trial NCT00269633?
This trial is currently completed. It is a Phase 2 study. The enrollment target is 9 participants. The study started on 2006-11. Estimated completion is 2008-05.
What interventions are being tested in trial NCT00269633?
The interventions under investigation include: Blue Light Box 467 nm (DEVICE), Red Light Box 657 nm (DEVICE).
Who is sponsoring clinical trial NCT00269633?
This trial is sponsored by Thomas Jefferson University, which has 292 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00269633's enrollment target sits among peer trials
9 1989th of 2000 higher than 11 of 2,000 other Phase 2 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Phase 2 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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