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NCT00200863 · ClinicalTrials.gov registry record · NA
Effects of Different Colors of Light on Human Physiology
A NA study, sponsored by Brigham and Women's Hospital.
- Completed
- Registry status
- NA
- Development phase
- 47
- Enrollment target
NCT00200863: Completed NA study, sponsored by Brigham and Women's Hospital.
NCT00200863 is a NA study that has completed, run by Brigham and Women's Hospital. The registered enrollment target is 47 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (97% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00200863, a NA study, has completed, sponsored by Brigham and Women's Hospital.
- COMPLETED
- Registry status
- NA
- Development phase
- 47 participants
- Enrollment target
Study Summary
This study will determine which color of light is most effective in stimulating a range of biological functions in humans including activation of sleep-wake regulatory system (alertness, performance, microsleeps, brain activity), activation of the nervous system (heart rate, temperature, blood pressure, breathing rate), and shifting the timing of the internal 24-hour (circadian) pacemaker.
Interventions
- DEVICE Monochromatic visible light exposure
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 47 participants |
| Start Date | 2005-04 |
| Est. Completion | 2007-02 |
| Phase | NA |
What the finished NCT00200863 record still lists
NCT00200863 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 47 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (97% lower).
The record links to 0 conditions, and to 1 intervention - of which Monochromatic visible light exposure is the first listed.
NCT00200863 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00200863 about?
NCT00200863 is a clinical study titled "Effects of Different Colors of Light on Human Physiology". This study will determine which color of light is most effective in stimulating a range of biological functions in humans including activation of sleep-wake regulatory system (alertness, performance, microsleeps, brain activity), activation of the nervous system (heart rate, temperature, blood press...
What is the current status of trial NCT00200863?
This trial is currently completed. It is a NA study. The enrollment target is 47 participants. The study started on 2005-04. Estimated completion is 2007-02.
What interventions are being tested in trial NCT00200863?
The interventions under investigation include: Monochromatic visible light exposure (DEVICE).
Who is sponsoring clinical trial NCT00200863?
This trial is sponsored by Brigham and Women's Hospital, which has 937 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00200863's enrollment target sits among peer trials
47 1400th of 2000 higher than 599 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA 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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