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iCBT for Depression - Standard Versus Condensed Treatment Material

Internet-based Cognitive Behavior Therapy for Depression With Standard Treatment Material Compared to a Condensed Version

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01788657
Acronym
KONRAD
Enrollment
273
Registered
2013-02-11
Start date
2013-10-29
Completion date
2017-12-03
Last updated
2023-04-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Major Depression

Keywords

Depression, Internet, Cognitive Behavior Therapy

Brief summary

Internet-based cognitive behavior therapy (iCBT) has been shown effective for depression in several studies, however the investigators know very little about how the written treatment material should be designed to be effective and at the same time acceptable to the patients. The investigators are not aware of any research that has investigated if slow readers, or persons with difficulty concentrating, can use the standard material or if they would benefit more from using an adapted version. In this study the investigators will assess reading speed and the ability to concentrate in all patients and then randomise them to an internet-based treatment for depression using either a standard material or a condensed one. The condensed material consists of 30000 words and will be available as text files and on audio files. The standard material consists of 60000 words and is only available as text files. Both groups will have the possibility of e-mail contact with a personal therapist during the treatment. Patients will be recruited within Örebro County by referrals and self-referrals. The goal is to recruit between 200 and 300 patients during 2 years. The treatment time will be 10 weeks and all patients will be assessed for depression at an interview with a psychologist. There will also be interviews after treatment and one year after treatment. The most important outcome will be depressive symptoms.

Interventions

BEHAVIORALStandard internet-based cognitive behavior therapy

Introduction to CBT and depression, Behavioral activation, Cognitive restructuring, Improve sleep, Handeling anxiety, Relapse prevention

BEHAVIORALCondensed internet-based cognitive behavior therapy

Introduction to CBT and depression, Behavioral activation, Cognitive restructuring, Improve sleep, Handeling anxiety, Relapse prevention

Sponsors

Karolinska Institutet
CollaboratorOTHER
Örebro County Council
Lead SponsorOTHER_GOV

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Fullfill criteria for diagnosis of major depression * Being able to read and write Swedish * Have access to the internet * Being a resident in Örebro county

Exclusion criteria

* Severe depressive symptoms (\>34 on the MADRS-S) * High risk for suicide * Attending cognitive behavior therapy * Psychosis * Bipolar disorder * Addiction to alcohol or illegal drugs * A somatic or psychiatric condition that is a contraindication for iCBT or in some way debars iCBT, or have to be treated before depression

Design outcomes

Primary

MeasureTime frameDescription
Change from baseline in depressive symptoms at post-treatment and after 12 monthsAt baseline, after 12 weeks, after 12 monthsDepressive symptoms will be measured by the self-report measure Montgomery-Åsberg Depression Rating Scale- self-rated.

Secondary

MeasureTime frameDescription
Post-treatment treatment satisfactionAfter 12 weeksPost-treatment treatment satisfaction will be measured by the self-report measure Client Satisfaction Questionnaire (CSQ)
Alcohol usePre treatmentTo assess alkolhol use the AUDIT-questionnaire will be filled out at pre treatment.
Drug usePre treatmentTo assess drug use the DUDIT-questionnaire will be filled out at pre treatment.
Treatment satisfaction at follow upAfter 1 yearTreatment satisfaction at follow up will be measured by the self-report measure Client Satisfaction Questionnaire (CSQ)
Change from baseline in diagnostic status for Major depressionPre-treatment, after 12 weeks and after 1 yearThe diagnostic status (depression) will be assessed in a face-to-face interview using the structured material Mini-International Neuropsychiatric Interview (M.I.N.I.).
Change from baseline in symptoms of anxietyPre-treatment, after 12 weeks and after 1 yearSymptoms of anxiety will be conducted using the self-report measure Beck Anxiety Inventory (BAI)
Therapist timePost treatmentTherapist time will be measured automatically by the IT-platform and assesses the time spent on each patient by each therapist. A mean time will be calculated to report an estimated time needed to treat one patient with the two interventions.

Other

MeasureTime frameDescription
Change from baseline in risk for suicideAfter 1,2,3,4,5,6,7,8,9,10,11,12 weeksChange in risk for suicide will be measured by item 9 in the MADRS-S every week
Reading speedPre treatmentTo assess reading speed the Diagnostiskt Läs och Skrivprov (DLS) will be administered during the pre treatment interview.
Ability to concentratePre treatmentTo assess the ability to concentrate six items from the WHO adult scale for attention deficit disorder (ASRS-VI.I) will be administered during the pre treatment interview.

Countries

Sweden

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026