Bright Light Therapy in Seasonal Affective Disorder (SAD)
Seasonal Affective Disorder
About this trial
This is an interventional treatment trial for Seasonal Affective Disorder
Eligibility Criteria
Inclusion Criteria:
• a patient has (according to the Diagnostic and Statistical Manual of Mental Disorders, fourth edition, text revision [DSM-IV-TR]) a Major depression, recurrent episode, seasonal pattern, "moderate" or "severe" (classification code 296.32 and 296.33)
The 29-item Structured Interview Guide for Hamilton Depression Rating Scale - Seasonal Affective Disorder Version (SIGH-SAD) score ≥ 20
- The 29-item Structured Interview Guide for Hamilton Depression Rating Scale - Seasonal Affective Disorder Version (SIGH-SAD) score ≥ 20
- The 21-item Hamilton Depression Rating Scale score ≥ 10
The 8-item atypical symptom score ≥ 5
- patient is over 18 years
- patient can read and understand the subject information sheet
- patient has signed the informed consent form
- patient is not pregnant
Exclusion Criteria:
- patient has a lifetime psychotic disorder
- patient has a DSM-IV Axis I disorder other than some anxiety disorder evaluated by MINI
- patient has some DSM-IV-TR Axis II disorder, which is likely to interfere with the study treatment according to the investigator
- patient has alcohol or some other substance use dependence or misuse
- patients has some unstable somatic disorder
- patient uses some psychotropic agencies
- patient is, in the opinion of the investigator, unsuitable for any reason
- patient is a member of the site personnel or their immediate families
- patient has had bright light therapy via ear canals during the current episode
Sites / Locations
- ODL Terveys Oy
Arms of the Study
Arm 1
Arm 2
Arm 3
Placebo Comparator
Experimental
Experimental
Placebo
Intermediate dose
High dose bright light
The amount of photic energy of light is considered to be non-therapeutical
The amount of photic energy of bright light is considered to be "intermediate"
The amount of photic energy of bright light is considered to be fully therapeutic