ARTICLES
A Comparison of Cognitive-Behavioral Therapy, Sertraline, and Their Combination for Adolescent Depression

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ABSTRACT

Objective

To evaluate cognitive-behavioral therapy, antidepressant medication alone, and combined CBT and antidepressant medication in the treatment of depressive disorders in adolescents.

Method

Seventy-three adolescents (ages 12-18 years) with a primary diagnosis of DSM-IV major depressive disorder, dysthymic disorder, or depressive disorder not otherwise specified were randomly allocated to one of three treatments. Treatment outcome measures were administered before and after acute treatment, and at a 6-month follow-up. Depression diagnosis was the primary outcome measure; secondary measures were self- and other report and clinician rating of global functioning. The trial was conducted at three community-based clinics between July 2000 and December 2002. Data analyses used an intent-to-treat strategy.

Results

Following acute treatment, all treatment groups demonstrated statistically significant improvement on outcome measures (depressive diagnosis, Reynolds Adolescent Depression Scale, Revised Children's Manifest Anxiety Scale, Suicidal Ideation Questionnaire), and improvement was maintained at follow-up. Combined cognitive-behavioral therapy and antidepressant medication was not found to be superior to either treatment alone. Compared with antidepressant medication alone, participants receiving cognitive-behavioral therapy alone demonstrated a superior acute treatment response (odds ratio = 6.86; 95% confidence interval 1.12-41.82). Although cognitive-behavioral therapy was found to be superior to antidepressant medication alone for the acute treatment of mild to moderate depression among youth, this may have stemmed from the relatively low dose of sertraline used.

Conclusions

All treatments led to a reduction in depression, but the advantages of a combined approach were not evident.

Section snippets

Subjects

Between July 2000 and December 2002, 168 adolescents were referred by physicians or school counselors for assessment of possible depression to one of three clinics (two in suburban Melbourne and one in a regional city of Victoria) colocated with public child and adolescent mental health services. Recruitment was achieved by providing information to physicians and school counselors and inviting them to refer. Telephone screening excluded 66 participants. One hundred two young people and their

Pretreatment Comparison of Groups

Pretreatment differences between groups on demographic and outcome variables were tested using X2 tests or Fisher exact test for categorical variables, and one-way ANOVAs for continuous variables. No difference between treatment groups was detected on any of the variables, suggesting that the randomization procedure was effective.

Diagnostic Status.

The proportions of adolescents with MDD who responded to each treatment over time are presented in Figure 2A. The greatest proportion responding to treatment by

DISCUSSION

The “Time for a Future” program was designed to evaluate CBT, sertraline, and their combination in the community-based treatment of adolescent depression. The sample was experiencing mild to moderate levels of depression and high levels of comorbidity. The depressed youths were clinical referrals who have previously been found to be less responsive to treatment than study participants recruited by advertisement (Brent et al., 1998). Therefore, it is likely that the findings of this study can be

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    This research was supported by grants from beyondblue, Australia's Depression Initiative, Premier's Youth Suicide Taskforce, Department of Human Services Victoria, and Australian Rotary Health Research Fund. Pfizer Pharmaceuticals provided medication free of charge but did not provide other financial support or contribution to the experimental design or study protocol.

    Disclosure: The authors have no financial relationships to disclose.

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