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Sponsored by: |
National Institute of Mental Health (NIMH) |
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Information provided by: | National Institute of Mental Health (NIMH) |
ClinicalTrials.gov Identifier: | NCT00076245 |
This study will assess the effectiveness of cognitive behavioral therapy (CBT) in treating seasonal affective disorder (SAD), commonly called the “winter blues.”
Condition | Intervention | Phase |
---|---|---|
Seasonal Affective Disorder Depression |
Behavioral: Light Therapy Behavioral: Cognitive Behavioral Therapy Behavioral: Light Therapy plus Cognitive Behavioral Therapy |
Phase I |
Study Type: | Interventional |
Study Design: | Treatment, Randomized, Single Blind, Placebo Control, Parallel Assignment, Efficacy Study |
Official Title: | Cognitive Behavioral Approaches to Seasonal Depression |
Estimated Enrollment: | 120 |
Study Start Date: | November 2002 |
Estimated Study Completion Date: | November 2004 |
SAD is a condition in which people experience depression as a result of seasonal variations in sunlight. Although light therapy is a common treatment for SAD, a large proportion of people with SAD are resistant to this treatment. CBT is effective for nonseasonal depressive disorders, but its use for SAD has not been thoroughly explored. This study will determine whether CBT, alone and combined with light therapy, is as effective as light therapy alone in reducing SAD symptoms.
Participants in this study will be randomly assigned to light therapy, CBT, a combination of light therapy and CBT, or a control group (no therapy) for 6 weeks. CBT will be conducted twice a week; light therapy will be conducted twice a day. Assessments will be made before, during, and after the study treatment. Depression scales, questionnaires, and behavioral tasks will be used to assess the depressive symptoms of participants. A 6-month and 1-year follow-up visit will also be conducted. During the follow-up visits, participants will be interviewed and will complete a questionnaire and a survey.
Ages Eligible for Study: | 18 Years and older |
Genders Eligible for Study: | Both |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
Exclusion Criteria:
Study ID Numbers: | R03 MH65946, DSIR AT-AS |
Study First Received: | January 16, 2004 |
Last Updated: | July 28, 2006 |
ClinicalTrials.gov Identifier: | NCT00076245 History of Changes |
Health Authority: | United States: Federal Government |
Phototherapy |
Seasonal Affective Disorder Depression Mental Disorders |
Mood Disorders Depressive Disorder Behavioral Symptoms |
Seasonal Affective Disorder Pathologic Processes Disease Depression |
Mental Disorders Mood Disorders Depressive Disorder Behavioral Symptoms |