Guided Internet-based Interventions in Primary Care Effectiveness-implementation Randomized Controlled Trial
INTERMENTAL
1 other identifier
interventional
1,000
1 country
6
Brief Summary
Internet-based cognitive behavioral therapy for anxiety and depression have far-reaching potential to overcome common barriers to accessing evidence-based treatment, such as waiting lists, travel distance and costs. Despite the undeniable promise of iCBT, several aspects remain poorly understood and warrants further study. The INTERMENTAL project is a joint effort between Norwegian Institute of Public Health, Norwegian Directorate of Health and six Prompt Mental Health Care (PMHC) services, situated in 11 municipalities, to evaluate the iCBT interventions developed by the technology company "Assistert Selvhjelp" (AS-iCBT). We will conduct a large-scale hybrid effectiveness-implementation randomized controlled non-inferiority trial that will provide new knowledge on the effectiveness, cost-effectiveness and implementation of AS-iCBT in primary care. Primary objective: Examine the non-inferiority of guided internet-based cognitive behavioural treatment "Assistert Selvhjelp" (AS-iCBT) compared to treatment as usual in the primary care service Prompt Mental Health Care (TAU-PMHC) with regard to effects on symptoms of anxiety and depression. Secondary objectives: (i) Examine the non-inferiority of AS-iCBT compared to TAU-PMHC on other outcomes such as quality of life, functional level, specific anxiety measures (social anxiety, panic disorder), sleep and employment status; (ii) Examine the cost-effectiveness of AS-iCBT compared to TAU-PMHC; (iii) Examine to what extent moderators and mediators of change are associated with treatment effectiveness of AS-iCBT; (iv) Assess whether AS-iCBT is as acceptable and appropriate for treatment of anxiety and depression as TAU-PMHC, and examine barriers/facilitators for their further implementation.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable anxiety
Started Oct 2021
Longer than P75 for not_applicable anxiety
6 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 17, 2021
CompletedStudy Start
First participant enrolled
October 20, 2021
CompletedFirst Posted
Study publicly available on registry
November 12, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 31, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
June 30, 2026
ExpectedDecember 11, 2024
December 1, 2024
2.9 years
October 17, 2021
December 6, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Changes in mean levels of depression
Changes in mean levels of depression as measured by the Patient Health Questionnaire (PHQ). Scores from 0 to 27, higher scores indicate worse outcome.
Baseline to 6-month follow-up
Changes in mean levels of anxiety
Changes in mean levels of anxiety as measured by the Generalized Anxiety Disorder scale (GAD). Scores from 0 to 21, higher scores indicate worse outcome.
Baseline to 6-month follow-up
Secondary Outcomes (12)
Changes in mean levels of depression at 12-, 18- and 24-months follow-up
Baseline to 24-month follow-up
Changes in mean levels of anxiety at 12-, 18- and 24-months follow-up
Baseline to 24-month follow-up
Recovery rate at 6-, 12-, 18-, and 24-months follow-up
Baseline to 24-month follow-up
Work Participation based on questionnaire data
Baseline to 24-month follow-up
Work Participation based on registry data
Baseline to 24-month follow-up
- +7 more secondary outcomes
Study Arms (2)
Guided internet-based treatment (AS-iCBT)
EXPERIMENTALTreatment as usual in Prompt Mental Health Care (TAU-PMHC)
ACTIVE COMPARATORInterventions
AS-iCBT offers guided CBT intervention for anxiety and depression, each consisting of 6 modules. It is recommended for clients to complete 1 module weekly. The structure and content of the programme modules follow evidence-based CBT principles, and comprises cognitive and behavioural components such as self-monitoring, gradual stimulus control, exposure, behavioural activation, and cognitive restructuring. It is recommended that therapist support is provided weekly during short sessions that focus on progress monitoring and feedback on completed work. Support sessions should last 15-20 minutes and are preferably delivered by phone or video conference.
TAU-PMHC includes both low-intensity (guided self-help, group-based psychoeducation) and high-intensity CBT (F2F-CBT). The TAU-PMHC condition basically represents how PMHC services currently operates (i.e. a pragmatic stepped care model) and provides therapists with more flexibility to accommodate client needs and preferences.
Eligibility Criteria
You may qualify if:
- Presence of anxiety and/or mild to moderate depression.
- Being above 18 years of age and a resident in the pilot sites.
- Basic verbal and oral Norwegian proficiency.
- Having internet access and ability to use it.
You may not qualify if:
- Entitled to secondary care services due to eating disorder, suicide risk, bipolar disorder, severe depression, psychotic symptoms, severe substance abuse, and/or personality disorder.
- Two or more previous treatment attempts in secondary care services without effect.
- Serious physical health problem as primary problem.
- Clients that have had treatment at PMHC before and only require a booster session.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Norwegian Institute of Public Healthlead
- Norwegian Directorate of Healthcollaborator
- University of Bergencollaborator
- Göteborg Universitycollaborator
- University of Tromsocollaborator
- Sussex Partnership NHS Foundation Trustcollaborator
Study Sites (6)
PMHC Fosen
Brekstad, Norway
PMHC Karmøy
Kopervik, Norway
PMHC Vestvågøy
Leknes, Norway
PMHC Notodden
Notodden, Norway
PMHC Sandnes
Sandnes, Norway
PMHC Modum
Vikersund, Norway
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Robert Smith, PhD
Norwegian Institute of Public Health
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER GOV
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Research Professor
Study Record Dates
First Submitted
October 17, 2021
First Posted
November 12, 2021
Study Start
October 20, 2021
Primary Completion
August 31, 2024
Study Completion (Estimated)
June 30, 2026
Last Updated
December 11, 2024
Record last verified: 2024-12
Data Sharing
- IPD Sharing
- Will not share