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Blue Enriched Versus Standard Light Treatment for Seasonal Affective Disorder(SAD)

NCT01048294 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 52

Last updated 2010-01-13

No results posted yet for this study

Summary

One of the most frequently investigated hypothesis of the pathophysiology underlying Seasonal Affective Disorder(SAD) or so called winterdepression is a disturbance of circadian rhythms. Since the circadian system is especially sensitive for the blue portion of the light spectrum, a new light therapy device with more blue light (blue enriched polychromatic light) was tested for its efficacy to treat SAD. In chronobiological terms this light is hypothesized to be more potent in inducing non-visual effects. In the present study fluorescent tubes that emit a high portion of short wavelength light on top of the normal wavelengths are tested for its superiority in treating SAD. This blue-enriched light (colour temperature 17000 ºK) is compared to standard light treatment (5000 º K) in SAD patients., The investigators hypothesise that blue- enriched light improve the therapeutic effects of light treatment leading to a higher response or the same response in a shorter time schedule compared to standard light treatment.

Conditions

  • Seasonal Affective Disorder

Interventions

DEVICE

Original Energy Light,

9000 lux, 30 minutes in the morning

DEVICE

Original Energy Light prototype

9000 lux 20 minutes in the morning

DEVICE

Original Energy Light prototype

9000 lux 30 minutes in the morning

Sponsors & Collaborators

  • University Medical Center Groningen

    lead OTHER

Principal Investigators

  • Y. Meesters, PhD · Department of Psychiatry, University Medical Center Groningen, The Netherlands

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2005-10-31
Primary Completion
2006-03-31
Completion
2006-03-31

Countries

  • Netherlands

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01048294 on ClinicalTrials.gov