The aim of the study is to test the efficacy of a treatment for depression based on interpersonal psychotherapy (IPT). The treatment will be accessed via an internet platform built for this study. A therapist will provide support weekly, as well as on-demand when needed. The treatment lasts for 10 weeks.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
113
Internet-based interpersonal psychotherapy aimed at reducing symptoms of depression. The content of the intervention is divided into three parts: the assessment phase (the first four weeks), the focus phase (the following five weeks), and the end phase (the last week).
Department of Behavioral Sciences and Learning, Linköping University
Linköping, Östergötland County, Sweden
Change on Montgomery Åsberg Depression Rating Scale (MADRS-S)
Depression inventory, consists of 9 items measuring symptoms of major depressive disorder. Each item are scored between 0 and 6 points, resulting in a total sum between 0 and 54. Cut-offs are: 0-12 No substantial depressive symptoms, 13-19 mild depressive symptoms, 20-34 moderate depressive symptoms, 35-54 severe depressive symptoms.
Time frame: Before the treatment, during week 1 to 10 of the treatment, after 11 weeks. Follow-up one year after the start of the treatment.
Change on Beck Depression Inventory-II (BDI-II)
Depression inventory consisting of 21 items measuring symptoms of depressions along with behavioural and cognitive manifestations of these symptoms. Sum scores range between 0 and 63 points. Cut-offs: 0-13 minimal depressive symptoms, 14-19 mild depressive symptoms, 20-28 moderate depressive symptoms, 30-63 severe depressive symptoms.
Time frame: Before treatment and after 11 weeks, follow-up one year after the start of the treatment.
Change on Brunnsviken Brief Quality of Life Inventory (BBQ)
Measure of subjective quality of life. Sum scores can range between 0 and 96. Higher scores indicate a higher quality of life.
Time frame: Before treatment and after 11 weeks, follow-up one year after the start of the treatment.
Change on Generalized Anxiety Disorder 7-Item Scale (GAD-7)
Seven item measure of generalized anxiety disorder. Sum score range from 0 to 21, with higher scores indicating more generalized anxiety. Cut-offs for interpretation: 0-5 minimal anxiety, 6-9 mild anxiety, 10-14 moderate anxiety, and 15-21 severe anxiety.
Time frame: Before treatment and after 11 weeks, follow-up one year after the start of the treatment.
Change on Reflective Functioning Questionnaire-8 item version (RFQ-8)
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Instrument measuring reflective functioning related to mentalization ability. Eight items where the respondent answers on a Likert scale. The scoring is calculated based on two scales, uncertainty and certainty. All eight items are scored twice, once for each scale. The Likert options for the scoring of the first scale is scored 0 0 0 0 1 2 3. The same items are then summed again with the scoring 3 2 1 0 0 0 0. All items are the summed up to give a measure of mentalization certainty and uncertainty.
Time frame: Before treatment, after 11 weeks, following one year after the start of the treatment.