NCT06979089

Brief Summary

The goal of this cluster randomized controlled trial is to explore if mental health in Dutch small and medium-sized enterprises (SMEs) can be improved by the World Health Organization's online program Doing What Matters in Times of Stress (DWM). The main questions it aims to answer are:

  • Does DWM improve the mental health of employees working in Dutch SMEs?
  • Does DWM improve work-related outcomes in employees working in Dutch SMEs?
  • How can DWM be implemented at a large scale in Dutch SMEs? Researchers will compare two groups to see if the DWM program is effective. One group will receive the DWM program and Care-as-Usual (group 1), and the other group will receive Care-as-Usual only (group 2). Participants will:
  • Follow the online DWM program for 5 weeks (only group 1).
  • Take part in 6 telephone appointments with a facilitator (helper) that provides extra support to complete the program (only group 1).
  • Complete 3 sets of questionnaires. Each set of questionnaire takes about 15 minutes to be completed (group 1 and group 2).

Trial Health

77
On Track

Trial Health Score

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

Enrollment
518

participants targeted

Target at P75+ for not_applicable anxiety

Timeline
4mo left

Started May 2025

Typical duration for not_applicable anxiety

Geographic Reach
1 country

1 active site

Status
recruiting

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

Study Progress75%
May 2025Sep 2026

First Submitted

Initial submission to the registry

May 7, 2025

Completed
11 days until next milestone

First Posted

Study publicly available on registry

May 18, 2025

Completed
1 day until next milestone

Study Start

First participant enrolled

May 19, 2025

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2026

Last Updated

December 5, 2025

Status Verified

November 1, 2025

Enrollment Period

1.3 years

First QC Date

May 7, 2025

Last Update Submit

November 27, 2025

Conditions

Keywords

DepressionAnxietyPsychological DistressMental healthWork-place mental healthEmployee well-beingDigital interventionOnline interventionDoing What Matters in Times of StressSmall and medium-sized enterprises

Outcome Measures

Primary Outcomes (1)

  • Patient Health Questionnaire Anxiety and Depression Scale (PHQ-ADS)

    The PHQ-ADS is the sum of the PHQ-9 and GAD-7 scores (details of both instruments summarised below) and thus can range from 0 to 48, with higher scores indicating higher levels of depression and anxiety symptomatology.

    Change from Baseline (week 1) to 1-week post intervention (week 7)

Secondary Outcomes (10)

  • Patient Health Questionnaire Anxiety and Depression Scale (PHQ-ADS)

    Change from Baseline (week 1) to 3 months follow-up (week 18)

  • Patient Health Questionnaire (PHQ-9)

    Change from Baseline (week 1) to 1-week post intervention (week 7) and 3 months follow-up (week 18)

  • Generalized Anxiety Disorder (GAD-7) questionnaire

    Change from Baseline (week 1) to 1-week post intervention (week 7) and 3 months follow-up (week 18)

  • EQ-5D-5L

    Change from Baseline (week 1) to 1-week post intervention (week 7) and 3 months follow-up (week 18)

  • Client Service Receipt Inventory (CSRI)

    Change from Baseline (week 1) to 1-week post intervention (week 7) and 3 months follow-up (week 18)

  • +5 more secondary outcomes

Other Outcomes (7)

  • Kessler-10 Psychological Distress Scale (K10)

    Screening (week 1)

  • Implementation indicator: acceptability

    During intervention (week 2-6)

  • Implementation indicator: acceptability

    1-week post intervention (week 7)

  • +4 more other outcomes

Study Arms (2)

Doing What Matters in Times of Stress & Care-as-Usual (CAU)

EXPERIMENTAL

Treatment group will receive the guided-online Doing What Matters in Times of Stress (DWM) program. The program has 5 modules and is delivered in 5 weeks (one module is being made available each week). Treatment group also receives a weekly support call (15 minutes) from a helper (6 calls in total). Helpers are (graduate) psychology students trained according to the WHO training manual in order to provide support to participants in completing the DWM program. Participants in treatment group will be allowed to receive any usual care once they are enrolled in the trial.

Behavioral: Doing What Matters in Times of Stress

Care-as-Usual (CAU)

NO INTERVENTION

Care-as-Usual ranges from community care to specialised psychological treatments.

Interventions

DWM is the illustrated guide of the original stress management intervention - Self-Help Plus and can be offered online through a web-based application. DWM is a low-intensity and transdiagnostic intervention that has been designed to be widely applicable to a variety of mental health problems (depression, anxiety and PTSD). DWM is based on acceptance and commitment therapy (ACT), a modern form (third wave) of cognitive-behavioural therapy with a strong focus on mindfulness practices and identification of values, with exercises which aim to reduce distress and build social support, adaptive coping and resilience. DWM includes five modules, each of which focuses on a specific skill. The online version of DWM has been designed to release a module every week, so the program is finalized in 5 weeks. In this trial, participants will receive the guided version of DWM: participants will have a short (15 minutes) weekly support call with a helper (6 calls in total).

Also known as: DWM, Doing What Matters, SH+, Self-Help Plus
Doing What Matters in Times of Stress & Care-as-Usual (CAU)

Eligibility Criteria

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

You may qualify if:

  • Having 10 to 250 employees
  • Being located in the Netherlands
  • (In case of insufficient recruitment among SMEs, a mitigation strategy is to recruit individual departments from larger organizations)
  • years or older
  • Having elevated levels of psychological distress (Kessler Psychological Distress Scale; K10 scores \> 15.9)
  • Sufficient literacy and mastery (written and spoken) of one of the languages the DWM intervention is being delivered in (i.e., Dutch or English)
  • Having access to an electronic device with internet access to follow the intervention
  • Written informed consent before entering the study

You may not qualify if:

  • Imminent suicide risk, or expressed acute needs or protection risks that require immediate follow-up
  • Currently receiving specialized psychological treatment (e.g., EMDR or CBT) at the time of screening
  • In case of current psychotropic medication use: being on an unstable dose for at least 2 months or a change in dosage over the past 2 months.
  • Having participated in the preceding ASCEND trial as supervisor (see NCT ID: NCT06989398)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Vrije Universiteit Amsterdam

Amsterdam, North Holland, 1081 HV, Netherlands

RECRUITING

Related Links

MeSH Terms

Conditions

Anxiety DisordersDepressionPsychological Well-BeingCerebral Palsy

Condition Hierarchy (Ancestors)

Mental DisordersBehavioral SymptomsBehaviorPersonal SatisfactionBrain Damage, ChronicBrain DiseasesCentral Nervous System DiseasesNervous System Diseases

Study Officials

  • Marit E. Sijbrandij

    VU University of Amsterdam

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Cătălin Gherdan

CONTACT

Anke B. Witteveen

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: The trial has cluster-randomized study design, meaning that the organizations (i.e., SMEs) that take part in the study will form clusters that will be randomized into either the intervention or control group. This way every participating employee from a SME is part of the same group. In this trial we are applying a stratified randomization based on whether the managers of the participating SME previously received the ASCEND intervention (manager training) or were in the control condition of a preceding trial (see NCT ID: NCT06989398). The SMEs will be randomized using limited block size that varies randomly (i.e., 4, 6, or 8 SMEs per block) per each stratum across (1) DWM and CAU (n=37) or (2) CAU only (n=37), with an equal probability of assignment to each group (allocation ratio 1:1).
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Full Professor

Study Record Dates

First Submitted

May 7, 2025

First Posted

May 18, 2025

Study Start

May 19, 2025

Primary Completion (Estimated)

September 1, 2026

Study Completion (Estimated)

September 1, 2026

Last Updated

December 5, 2025

Record last verified: 2025-11

Locations