Cognitive Behavioral Approaches to Seasonal Depression
试验速览
- 阶段
- 1 期
- 状态
- 已完成
- 发起方
- 入组人数
- 61
- 试验地点
- 2
- 主要终点
- Scores on the Structured Interview Guide for the Hamilton Depression Rating Scale-Seasonal Affective Disorder Version
研究概览
简要总结
This study will assess the effectiveness of cognitive behavioral therapy (CBT) in treating seasonal affective disorder (SAD), commonly called the "winter blues."
详细描述
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.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Single
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Diagnosis of seasonal affective disorder (SAD)
- •Willing and able to participate in the study procedures
排除标准
- •Major psychological diagnoses other than SAD
- •Current psychological or psychiatric treatment
结局指标
主要结局
Scores on the Structured Interview Guide for the Hamilton Depression Rating Scale-Seasonal Affective Disorder Version
时间窗: Post-treatment
The Structured Interview Guide for the Hamilton Depression Rating Scale-Seasonal Affective Disorder Version (SIGH-SAD) measures depressive symptoms on a continuous scale. Higher scores indicate worse outcome. Range of scores is 0 to 73. Generally, a score of 20 or higher is the cutoff for clinical depression.
Remission Status on Structured Interview Guide for the Hamilton Depression Rating Scale-Seasonal Affective Disorder Version (SIGH-SAD)
时间窗: Post-treatment
Dichotomous Remission Status (remitted or not) at post-treatment
次要结局
未报告次要终点
研究者
Kelly Rohan
Principal Investigator
Henry M. Jackson Foundation for the Advancement of Military Medicine