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Seasonal Affective Disorder clinical trials

View clinical trials related to Seasonal Affective Disorder.

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NCT ID: NCT01293409 Completed - Clinical trials for Seasonal Affective Disorder

Bright Light Therapy in Seasonal Affective Disorder (SAD)

Start date: November 2010
Phase: N/A
Study type: Interventional

Bright light therapy (BLT) is widely accepted as first-line treatment of seasonal affective disorder (SAD). However, the mechanism of action of BLT is still widely unknown. On the other hand, in mammals, light penetrates the skull bone and reaches the brain, and extra ocular transcranial phototransduction has physiological influences such as changed reproductive cycles and increased brain serotonin levels. Therefore, the investigators run a randomized, placebo controlled, double blind, dose finding study on the putative effect of transcranial bright light in the treatment of SAD.

NCT ID: NCT01292889 Completed - Clinical trials for Seasonal Affective Disorder

Study of Genes in Relation to Seasonal Affective Disorder and Major Depressive Disorder

Season605
Start date: October 2008
Phase: N/A
Study type: Observational

The investigators are looking for volunteers who have a history of Major Depressive Disorder, the Winter Blues, or Seasonal Affective Disorder or healthy volunteers who do not have a history of these disorders for a research study on genetics.

NCT ID: NCT01149135 Completed - Clinical trials for Seasonal Affective Disorder

Low Intensity 'Blue Light' Treatment of Seasonal Affective Disorder

Start date: October 2008
Phase: N/A
Study type: Interventional

One of the most frequently investigated hypothesis of the pathophysiology underlying Seasonal Affective Disorder(SAD) or so called winter depression 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.,In a earlier study it was shown that the therapeutic effect of blue enriched light were equal to standard light treatment using light in both conditions with an intensity of 10 000 lux. In the present study, blue enriched light with an intensity of 750 lux was used, because of the possible saturation effect in the former study. The investigators hypothesise that blue- enriched light with a low intensity 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.

NCT ID: NCT01048294 Completed - Clinical trials for Seasonal Affective Disorder

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

Start date: October 2005
Phase: N/A
Study type: Interventional

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.

NCT ID: NCT00809523 Completed - Clinical trials for Seasonal Affective Disorder

A Trial of Negative Ion Generation Versus Light-Emitting Diode Phototherapy for Seasonal Affective Disorder (SAD)

Start date: December 2008
Phase: Phase 2/Phase 3
Study type: Interventional

This is a randomized, controlled clinical trial of inactivated negative ion generation or light-emitting photodiode therapy for Seasonal Affective Disorder (SAD, winter depression), for subjects with a DSM IV diagnosis of Major Depression, with Seasonal Pattern, Winter type, to examine efficacy of treatments for this condition. The trial has a 1 week baseline phase and a 4 week treatment phase.

NCT ID: NCT00742365 Completed - Depression Clinical Trials

Predicting Effectiveness of Light Treatment for Winter Seasonal Affective Disorder

Start date: November 2007
Phase:
Study type: Observational

This study will evaluate a possible tool for predicting future effectiveness of bright light in treating seasonal affective disorder, winter subtype, and will examine secondary effects of bright light on cardiovascular risk factors.

NCT ID: NCT00502320 Completed - Clinical trials for Seasonal Affective Disorder

Ramelteon in the Treatment of Sleep and Mood in Patients With Seasonal Affective Disorder

SAM-SAD
Start date: September 2006
Phase: Phase 4
Study type: Interventional

The purpose of this study is to determine whether treating sleep difficulties in patients with seasonal affective disorder also improves their depressive symptoms.

NCT ID: NCT00139997 Completed - Clinical trials for Seasonal Affective Disorder

Environmental Treatment for Seasonal Affective Disorder (SAD)

Start date: January 2002
Phase: N/A
Study type: Interventional

The purpose is to study treatments of Seasonal Affective Disorder (SAD).

NCT ID: NCT00076245 Completed - Depression Clinical Trials

Cognitive Behavioral Therapy for the Treatment of Seasonal Affective Disorder (SAD)

Start date: November 2002
Phase: Phase 1
Study type: Interventional

This study will assess the effectiveness of cognitive behavioral therapy (CBT) in treating seasonal affective disorder (SAD), commonly called the "winter blues."

NCT ID: NCT00069459 Completed - Depressive Disorder Clinical Trials

Seasonal Affective Depression (SAD) Study

Start date: September 23, 2003
Phase: Phase 1
Study type: Interventional

A placebo controlled study evaluating the effectiveness of medication in preventing winter depressive episodes in patients with a history of Seasonal Affective Disorder