NCT06480474

Brief Summary

The overall aim of the present project is to test the efficacy of a validated Internet-based self-help program for depression developed in Germany in the French part of Switzerland. The program has shown to be efficacious in different trials with major depression and depression as a comorbidity of another disorder (e.g., gambling addiction, epilepsy). The objectives of this project are: Primary Objective: To test the effects of the self-help web-based program on depressive symptoms in French-speaking individuals in Switzerland. Secondary Objective A: To test the effects of the online program on reward responses for individuals with depressive symptoms. Secondary Objectives B and C: To test the effects of the role of peer-to-peer support using an online forum in addition to an online program (B) and comparison between Switzerland and India (C). This project can inform clinicians about what they can offer as a treatment to individuals, either in combination with psychotherapy or when there is no quick or direct access to a psychotherapist. The study promises to have a direct practical significance for people suffering from depression.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
240

participants targeted

Target at P75+ for not_applicable depression

Timeline
0mo left

Started May 2024

Geographic Reach
1 country

1 active site

Status
enrolling by invitation

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress97%
May 2024May 2026

Study Start

First participant enrolled

May 30, 2024

Completed
18 days until next milestone

First Submitted

Initial submission to the registry

June 17, 2024

Completed
11 days until next milestone

First Posted

Study publicly available on registry

June 28, 2024

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 30, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 30, 2026

Last Updated

June 28, 2024

Status Verified

June 1, 2024

Enrollment Period

2 years

First QC Date

June 17, 2024

Last Update Submit

June 24, 2024

Conditions

Keywords

depressiononline interventioninternet-based treatmentonline studypeer-supportrandomized control trialIndiaSwitzerland

Outcome Measures

Primary Outcomes (1)

  • Primary Outcome

    The primary outcome measures are symptoms of depression at post-treatment, that is after 8 weeks. Depressive symptoms will be measured with the Patient Health Questionnaire (PHQ-9) to assess the symptoms of depression.

    Post-Intervention (+8 weeks +/- 2 weeks)

Secondary Outcomes (3)

  • Secondary Objective A

    Baseline (0 week) , Mid-intervention (+4 weeks +/- 2 weeks), Post-Intervention (+8 weeks +/- 2 weeks), Follow-up (+20 weeks +/- 2 weeks)

  • Secondary Objective B and C

    Baseline (0 week), Post-Intervention (+8 weeks +/- 2 weeks)

  • Additional/Exploratory Outcomes

    Post-Intervention (+8 weeks +/- 2 weeks), Follow-up (+20 weeks +/- 2 weeks)

Study Arms (3)

Experimental group

EXPERIMENTAL

The first experimental group will have access to an online self-help program for depression. The program Deprexis® is a self-help, web-based intervention that proposed various modules to face depression. They will have access to the program for 8 weeks. They are asked to complete the modules as many times as they wish and to use to program at least 30 minutes, 1 or 2 times a week. They will be assessed at baseline (T0), mid-intervention (4-weeks, T1), post-intervention (8-weeks, T2) and for the follow-up (3 months post intervention, T3). They will be asked to complete online questionnaires.

Device: Deprexis

Second Experimental group

ACTIVE COMPARATOR

The second experimental group will have access to both the online program as well as an online forum in which they will be divided into a group of 10 and they will be requested to ask, respond, and share their experiences with other participants. They will have access to the program and to the online forum for 8 weeks. They are asked to complete the modules as many times as they wish and to use to program at least 30 minutes, 1 or 2 times a week. They will be assessed at baseline (T0), mid-intervention (4-weeks, T1), post-intervention (8-weeks, T2) and for the follow-up (3 months post intervention, T3). They will be asked to complete online questionnaires.

Device: DeprexisDevice: Deprexis with online forum

Control group

NO INTERVENTION

The control intervention is a wait list control group that will, after the 8 weeks of treatment, have access to the online self-help program and will complete questionnaires (the same as the two experimental groups), reward task at baseline, at 8-weeks and at the follow-up (3 months post-intervention).

Interventions

DeprexisDEVICE

The internet-based self-help program used in this study, Deprexis, contains 10 modules ( based on different psychotherapeutic approaches, consistent with a cognitive-behavioral perspective) and accessible at any time via regular internet browsers on laptops, computers, tablets, or smartphones through a secure website. Participants can repeat all modules as often as they wish after completing the full sequence once.

Experimental groupSecond Experimental group

Those in this group will have access to deprexis ( same as the first group) as well as an online forum built for the study. This forum will feature a general discussion page where participants can ask and answer questions, and they will be divided into groups of 10 to share experiences if they wish. Additionally, there will be subforums related to specific modules of the program. Participants can share their experiences and ask questions related to the modules. A moderator will regularly check to ensure no personal or sensitive information is disclosed and will ask questions weekly to encourage contributions to the forum.

Second Experimental group

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Read and signed inform consent.
  • Older than 18 years old
  • Have access to a computer or laptop or tablet with an internet connection.
  • Sufficient French language skills
  • Fulfil the criteria of characterised depression according to the M.I.N.I diagnostic interview.
  • Provide emergency contact before intervention.

You may not qualify if:

  • Active suicidal plans (score higher on the suicide item or report suicidal plan in the diagnostic interview)
  • Have a history of psychotic disorder or bipolar disorder.
  • Have changed their dosage of prescribed medication for anxiety or depression in the last month before the study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Chantal Martin Soelch

Fribourg, 1700, Switzerland

Location

Related Publications (15)

  • Kessler RC, Wang PS. The descriptive epidemiology of commonly occurring mental disorders in the United States. Annu Rev Public Health. 2008;29:115-29. doi: 10.1146/annurev.publhealth.29.020907.090847.

    PMID: 18348707BACKGROUND
  • Tandon T, Piccolo M, Ledermann K, Gupta R, Morina N, Martin-Soelch C. Relationship between behavioral and mood responses to monetary rewards in a sample of Indian students with and without reported pain. Sci Rep. 2022 Nov 24;12(1):20242. doi: 10.1038/s41598-022-24821-2.

    PMID: 36424426BACKGROUND
  • Tanner JA, Davies PE, Overall CC, Grima D, Nam J, Dechairo BM. Cost-effectiveness of combinatorial pharmacogenomic testing for depression from the Canadian public payer perspective. Pharmacogenomics. 2020 Jun;21(8):521-531. doi: 10.2217/pgs-2020-0012. Epub 2020 Apr 17.

    PMID: 32301648BACKGROUND
  • Pizzagalli DA, Iosifescu D, Hallett LA, Ratner KG, Fava M. Reduced hedonic capacity in major depressive disorder: evidence from a probabilistic reward task. J Psychiatr Res. 2008 Nov;43(1):76-87. doi: 10.1016/j.jpsychires.2008.03.001. Epub 2008 Apr 22.

    PMID: 18433774BACKGROUND
  • Rojas LM, Bahamon M, Wagstaff R, Ferre I, Perrino T, Estrada Y, St George SM, Pantin H, Prado G. Evidence-based prevention programs targeting youth mental and behavioral health in primary care: A systematic review. Prev Med. 2019 Mar;120:85-99. doi: 10.1016/j.ypmed.2018.12.009. Epub 2019 Jan 2.

    PMID: 30610888BACKGROUND
  • Snaith RP, Hamilton M, Morley S, Humayan A, Hargreaves D, Trigwell P. A scale for the assessment of hedonic tone the Snaith-Hamilton Pleasure Scale. Br J Psychiatry. 1995 Jul;167(1):99-103. doi: 10.1192/bjp.167.1.99.

    PMID: 7551619BACKGROUND
  • Andersson G, Cuijpers P. Internet-based and other computerized psychological treatments for adult depression: a meta-analysis. Cogn Behav Ther. 2009;38(4):196-205. doi: 10.1080/16506070903318960.

    PMID: 20183695BACKGROUND
  • Berger T, Hammerli K, Gubser N, Andersson G, Caspar F. Internet-based treatment of depression: a randomized controlled trial comparing guided with unguided self-help. Cogn Behav Ther. 2011;40(4):251-66. doi: 10.1080/16506073.2011.616531.

    PMID: 22060248BACKGROUND
  • Cohen S, Kamarck T, Mermelstein R. A global measure of perceived stress. J Health Soc Behav. 1983 Dec;24(4):385-96. No abstract available.

    PMID: 6668417BACKGROUND
  • Cuijpers P, Cristea IA, Karyotaki E, Reijnders M, Hollon SD. Component studies of psychological treatments of adult depression: A systematic review and meta-analysis. Psychother Res. 2019 Jan;29(1):15-29. doi: 10.1080/10503307.2017.1395922. Epub 2017 Nov 7.

    PMID: 29115185BACKGROUND
  • Karyotaki E, Efthimiou O, Miguel C, Bermpohl FMG, Furukawa TA, Cuijpers P; Individual Patient Data Meta-Analyses for Depression (IPDMA-DE) Collaboration; Riper H, Patel V, Mira A, Gemmil AW, Yeung AS, Lange A, Williams AD, Mackinnon A, Geraedts A, van Straten A, Meyer B, Bjorkelund C, Knaevelsrud C, Beevers CG, Botella C, Strunk DR, Mohr DC, Ebert DD, Kessler D, Richards D, Littlewood E, Forsell E, Feng F, Wang F, Andersson G, Hadjistavropoulos H, Christensen H, Ezawa ID, Choi I, Rosso IM, Klein JP, Shumake J, Garcia-Campayo J, Milgrom J, Smith J, Montero-Marin J, Newby JM, Breton-Lopez J, Schneider J, Vernmark K, Bucker L, Sheeber LB, Warmerdam L, Farrer L, Heinrich M, Huibers MJH, Kivi M, Kraepelien M, Forand NR, Pugh N, Lindefors N, Lintvedt O, Zagorscak P, Carlbring P, Phillips R, Johansson R, Kessler RC, Brabyn S, Perini S, Rauch SL, Gilbody S, Moritz S, Berger T, Pop V, Kaldo V, Spek V, Forsell Y. Internet-Based Cognitive Behavioral Therapy for Depression: A Systematic Review and Individual Patient Data Network Meta-analysis. JAMA Psychiatry. 2021 Apr 1;78(4):361-371. doi: 10.1001/jamapsychiatry.2020.4364.

    PMID: 33471111BACKGROUND
  • Klein JP, Barthel B, Berger T, Moritz S. Feasibility, effectiveness and safety of the self-management intervention deprexis in routine medical care: Results of an uncontrolled observational study. Internet Interv. 2020 Dec;22:100341. doi: 10.1016/j.invent.2020.100341. Epub 2020 Aug 27.

    PMID: 32874927BACKGROUND
  • Meyer B, Berger T, Caspar F, Beevers CG, Andersson G, Weiss M. Effectiveness of a novel integrative online treatment for depression (Deprexis): randomized controlled trial. J Med Internet Res. 2009 May 11;11(2):e15. doi: 10.2196/jmir.1151.

    PMID: 19632969BACKGROUND
  • Spitzer RL, Kroenke K, Williams JB, Lowe B. A brief measure for assessing generalized anxiety disorder: the GAD-7. Arch Intern Med. 2006 May 22;166(10):1092-7. doi: 10.1001/archinte.166.10.1092.

    PMID: 16717171BACKGROUND
  • Tandon T, Berger T, Meyer B, Khaled OA, Gupta R, Martin-Soelch C. Exploring cross-cultural effectiveness of internet-based depression treatment (IBAT-D) with peer-to-peer support vs. without across WEIRD and non-WEIRD samples: a research protocol for a randomized controlled trial. Trials. 2025 Dec 11;26(1):569. doi: 10.1186/s13063-025-09377-6.

MeSH Terms

Conditions

Depression

Condition Hierarchy (Ancestors)

Behavioral SymptomsBehavior

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: We will use a controlled randomized design with 3 conditions (1. Online program, 2. Online program and online forum, 3. Wait list). Participants will be assessed at 4 time points: before the beginning of the intervention (T0, baseline), at 4 weeks mid-treatment (T1), after the intervention, at 8 weeks (T2), and at the follow-up, that is 3 months post-intervention (T3).
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Prof. Dr.

Study Record Dates

First Submitted

June 17, 2024

First Posted

June 28, 2024

Study Start

May 30, 2024

Primary Completion (Estimated)

May 30, 2026

Study Completion (Estimated)

May 30, 2026

Last Updated

June 28, 2024

Record last verified: 2024-06

Locations