NCT05118828

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

75
On Track

Trial Health Score

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

Enrollment
1,000

participants targeted

Target at P75+ for not_applicable anxiety

Timeline
2mo left

Started Oct 2021

Longer than P75 for not_applicable anxiety

Geographic Reach
1 country

6 active sites

Status
active not recruiting

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%
Oct 2021Jun 2026

First Submitted

Initial submission to the registry

October 17, 2021

Completed
3 days until next milestone

Study Start

First participant enrolled

October 20, 2021

Completed
23 days until next milestone

First Posted

Study publicly available on registry

November 12, 2021

Completed
2.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 31, 2024

Completed
1.8 years until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2026

Expected
Last Updated

December 11, 2024

Status Verified

December 1, 2024

Enrollment Period

2.9 years

First QC Date

October 17, 2021

Last Update Submit

December 6, 2024

Conditions

Keywords

AnxietyDepressionGuided internet-based interventionsCBTOutcome monitoringDisseminationRoutine services

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)

EXPERIMENTAL
Behavioral: Guided internet-based cognitive behavioural therapy

Treatment as usual in Prompt Mental Health Care (TAU-PMHC)

ACTIVE COMPARATOR
Behavioral: Treatment as usual in Prompt Mental Health Care (TAU-PMHC)

Interventions

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.

Guided internet-based treatment (AS-iCBT)

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.

Treatment as usual in Prompt Mental Health Care (TAU-PMHC)

Eligibility Criteria

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

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

Study Sites (6)

PMHC Fosen

Brekstad, Norway

Location

PMHC Karmøy

Kopervik, Norway

Location

PMHC Vestvågøy

Leknes, Norway

Location

PMHC Notodden

Notodden, Norway

Location

PMHC Sandnes

Sandnes, Norway

Location

PMHC Modum

Vikersund, Norway

Location

MeSH Terms

Conditions

Anxiety DisordersDepression

Interventions

Therapeutics

Condition Hierarchy (Ancestors)

Mental DisordersBehavioral SymptomsBehavior

Study Officials

  • Robert Smith, PhD

    Norwegian Institute of Public Health

    PRINCIPAL INVESTIGATOR

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

Locations