Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Training supervisors in Dutch SMEs to support mental health at work

Official title: Cluster RCT of the WHO's Advancing Supervisor Capabilities for Mental Health at Work (ASCEND) in Dutch Small and Medium-sized Enterprises (SMEs)

Run by VU University of Amsterdam · NCT06989398 · Data updated 2026-11-12

This study tests if training supervisors in small and medium-sized businesses in the Netherlands can help them better support their employees' mental health and reduce absenteeism.

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Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment148 (estimated)
SponsorVU University of Amsterdam
Academic / other
Locations1 site (Amsterdam)
StatusRecruiting
StartedMay 14, 2025
Main results expectedDecember 2026
Study endsFebruary 2027
Registry record updatedJuly 21, 2026
Trial IDNCT06989398 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are supervisors and their supervisees working in SMEs in the Netherlands, particularly those who can communicate in Dutch or English.

Probably not a fit

Patients who may not benefit include those working in organizations with fewer than 10 employees or those not located in the Netherlands.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This cluster randomized controlled trial evaluates the effectiveness of the ASCEND intervention, which trains workplace supervisors in Dutch Small and Medium-sized Enterprises (SMEs) to better support their employees' mental health. The intervention aims to enhance supervisors' confidence, mental health literacy, and ability to advocate for mental health initiatives. Data will be collected through online questionnaires from both supervisors and their supervisees, with a focus on measuring changes in mental health outcomes and absenteeism rates. The study also includes a qualitative evaluation phase to gather insights from participants.

Why it matters

Potential benefit: If successful, this intervention could significantly improve workplace mental health support, leading to better employee well-being and reduced absenteeism.

How similar studies have gone: Other studies have shown success with similar interventions aimed at improving workplace mental health, indicating a promising approach.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion for SMEs:

* Having 10 to 250 employees
* Being located in the Netherlands

In case of insufficient recruitment among SMEs, a mitigation strategy is to recruit public and non-profit organizations with 10 to 250 employees, and units of larger organizations employing between 10 and 250 employees

Eligibility criteria for individual participants:

Supervisors are included if they fit the following inclusion criteria:

* 18 years or older
* Working in an organization in the Netherlands
* Sufficient mastery (written and spoken) of the language in which the ASCEND intervention is being delivered (i.e., Dutch or English)
* Written informed consent before entering the study
* Supervise at least 1 supervisee within the same organization

Supervisees are included if they fit the following inclusion criteria:

* 18 years or older
* Have a direct supervisor who is participating in ASCEND (either intervention or control group)
* Sufficient mastery of English or Dutch
* Written informed consent before entering the study

Where it's running

  • Vrije Universiteit Amsterdam
    Amsterdam, Netherlands
    Recruiting

Study contacts

  • Principal investigator: Mark van Vugt, PhD — VU University of Amsterdam
  • Study coordinator: Amber S Brizar, MSc
  • Email: a.s.brizar@vu.nl
  • Phone: +31 20 59 82587

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.