NCT05916651

Brief Summary

The aim of this randomized controlled trial (RCT) is to assess whether mindfulness training reduces early stage internalizing problems such as anxiety, worrying, and low mood in help-seeking youth. Participants will be randomly assigned to one of two groups: 1) mindfulness + care-as-usual (CAU) or 2) CAU-only. The mindfulness program was developed specifically for youth with internalizing problems. The 8-week training program consists of weekly 2-hour sessions, with mindfulness, yoga, and mindful active movement in each session. In addition, participants are invited to practice at home in between sessions for around 20 minutes per day. Data will be collected at baseline (T0), end-of-treatment (T1) (or 2-3 months after baseline for the CAU-only group), and at 2 months follow-up (T2) and 6 months follow-up (T3). Measurements will include:

  • Self-report questionnaires (T0, T1, T2, T3)
  • Psychiatric diagnostic interview (T0, T3)
  • MRI scans (T0, T1)
  • Cognitive tasks (T0, T1) The primary outcome parameter is the total number of internalizing problems measured with the Adult Self Report (ASR) at end-of-treatment. The effect of mindfulness training (mindfulness + CAU vs. CAU-only) on internalizing problems at T1 will be assessed using a linear-mixed effects model.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
155

participants targeted

Target at P75+ for not_applicable

Timeline
1mo left

Started Jul 2023

Typical duration for not_applicable

Geographic Reach
1 country

2 active sites

Status
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 Progress95%
Jul 2023Jul 2026

First Submitted

Initial submission to the registry

May 30, 2023

Completed
24 days until next milestone

First Posted

Study publicly available on registry

June 23, 2023

Completed
14 days until next milestone

Study Start

First participant enrolled

July 7, 2023

Completed
2.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2026

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2026

Expected
Last Updated

December 13, 2024

Status Verified

July 1, 2024

Enrollment Period

2.5 years

First QC Date

May 30, 2023

Last Update Submit

December 9, 2024

Conditions

Keywords

mindfulnessinternalizing problemsself-referential processingyouthhelp-seekingresilience

Outcome Measures

Primary Outcomes (1)

  • The total number of internalizing problems as measured with the ASR, computed as the sum of responses on the items comprising withdrawn, somatic complaints, anxiety and depression subscales.

    The ASR is a 126-item self-report questionnaire assessing aspects of adaptive functioning and problems. Items are rated on a 3-point scale: 0-Not True, 1-Somewhat or Sometimes True, 2-Very True or Often True.

    end-of-treatment (T1), approximately 3 months after the baseline assessment

Secondary Outcomes (15)

  • Presence of psychiatric disorders as per DSM-5 criteria on the MINI - Simplified for DSM-5 (MINI-S-DSM-5). Of note: the MINI-S is a separate instrument from the Mini Neuropsychiatric Interview (MINI) for DSM-5 by Prof. Sheehan.

    6-months follow-up (T3), approximately 9 months after the baseline assessment

  • The Ruminative-Reflection Questionnaire (RRQ) - brooding subscale score.

    end-of-treatment (T1), approximately 3 months after the baseline assessment

  • The Perceived Stress Scale (PSS-10) total score.

    end-of-treatment (T1), approximately 3 months after the baseline assessment

  • The Rosenberg Self-Esteem Scale (RSES) total score.

    end-of-treatment (T1), approximately 3 months after the baseline assessment

  • The Adaptive Self-Concept Questionnaire (ASCQ) total score.

    end-of-treatment (T1), approximately 3 months after the baseline assessment

  • +10 more secondary outcomes

Study Arms (2)

Intervention (LOS training) + care as usual (intervention group)

EXPERIMENTAL

Intervention group: mindfulness (LOS) training + CAU

Behavioral: Learning to Offset Stress (LOS) (in Dutch: Leren Omgaan met Stress) trainingBehavioral: Care as usual

Care-as-usual (CAU)-only (control group)

ACTIVE COMPARATOR

Control group: CAU-only

Behavioral: Care as usual

Interventions

The investigational treatment is the LOS training, which is an adaptation of two previously validated mindfulness-based programs: Mindfulness-Based Cognitive Therapy (MBCT) developed by Segal, Williams, and Teasdale (2002) and the Mindful2Work (M2W) program developed by de Bruin, Formsma, and Bögels (2018). The M2W program combines mindful physical activity, yoga, and mindfulness meditation to target stress symptoms and burn-out in adults. The LOS training was adapted from these programs to meet the needs of youth with internalizing problems. The training consists of 8 weekly 2-hour sessions that each comprise three elements: mindful physical activity (15-20 minutes), yoga (15-20 minutes), and mindfulness meditation exercises (80-90 minutes). In addition to attending group sessions, participants are invited to practice at home on a daily basis. Home practice consists of daily mindfulness practices comprising mindfulness exercises, yoga and mindful physical activity.

Intervention (LOS training) + care as usual (intervention group)
Care as usualBEHAVIORAL

Youth who seek help for internalizing problems from a primary mental health practitioner, including student psychologists or mental health nurse practioners, but do not (yet) meet criteria for (major) mental illness are typically offered supportive counselling, aimed primarily at helping people feel understood and supported. Supportive counselling may also include instructions on behavioral activation, particularly when individuals report reduced activity and behavioral avoidance including social withdrawal. In addition, mental health practitioners commonly employ a "watchful waiting" policy for people with symptoms in the milder range, where they check-in with clients on a regular basis and refer for more intensive treatment if and when symptoms worsen.

Care-as-usual (CAU)-only (control group)Intervention (LOS training) + care as usual (intervention group)

Eligibility Criteria

Age16 Years - 25 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Youth between 16 and 25 years of age
  • Provide written informed consent
  • Adequate mastery of Dutch language

You may not qualify if:

  • Lifetime diagnosis of severe major depression, bipolar disorder, schizophrenia spectrum disorder, personality disorder, and post-traumatic stress disorder
  • History of major medical illness or neurological illness
  • Participation in a mindfulness programme in the past year
  • Current participation in another intervention study
  • Moderate to severe substance use disorders (i.e., we will allow for mild substance use)
  • Current active suicidality, current psychotic symptoms above clinical cut-off for psychosis, or current trauma-related complaints above clinical cut-off for PTSD.
  • Diagnosed or suspected (mild) intellectual disability (estimated IQ \< 75)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Radboud university medical center (Radboudumc)

Nijmegen, Gelderland, 6500 HB, Netherlands

RECRUITING

Donders Centre for Cognitive Neuroimaging (DCCN)

Nijmegen, Gelderland, 6525 EN, Netherlands

ACTIVE NOT RECRUITING

Related Publications (1)

  • Schepers M, Lagerweij P, Geurts D, Krause F, Ouden HD, Cools R, Speckens A, Collin G. Promoting Resilience in Youth through Mindfulness mEditation (PRYME): Study protocol for a randomized controlled trial investigating the effects of mindfulness training as add-on to care-as-usual on internalizing problems, mental illness development, and associated brain and cognitive processes in help-seeking youth. BMC Psychiatry. 2025 Feb 14;25(1):126. doi: 10.1186/s12888-024-06430-7.

Central Study Contacts

Guusje Collin, MD, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: The PRYME study is a Randomized Controlled Trial (RCT) that compares care-as-usual (e.g., supportive counseling by a student psychologist or mental health nurse-practitioner) with care -as-usual + mindfulness training. Participants are randomized to either of these conditions. Data is collected at baseline, after the mindfulness training (approximately 3 months after baseline), and at 2 and 6 months follow-up. Multiple measurements will be conducted using questionnaires, experimental tasks in and out of the MRI scanner, MRI scans, and clinical interviews.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 30, 2023

First Posted

June 23, 2023

Study Start

July 7, 2023

Primary Completion

January 1, 2026

Study Completion (Estimated)

July 1, 2026

Last Updated

December 13, 2024

Record last verified: 2024-07

Locations