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Exploring the Feasibility and Effectiveness of a MIED-Based Adolescent Mindfulness Intervention Group for Youth With Emotional Distress

20 luglio 2026 aggiornato da: Xinghua Liu

Background: Adolescent emotional distress (anxiety and depressive symptoms) is rising globally. The detection rate of depression risk among Chinese middle and high school students reaches 24.6%, with anxiety risk at 18.1%. These conditions show high comorbidity, high recurrence, and high disability rates, seriously affecting adolescents' academic performance, social relationships, and quality of life. Mindfulness-Based Interventions (MBIs) have shown significant effects in children and adolescent populations; meta-analyses indicate a moderate effect size on adolescent internalizing problems (Hedges' g = 0.47). Group-based adolescent mindfulness interventions are feasible, as the group format improves efficiency, reduces costs, and provides social support. However, existing research still has limitations in cultural adaptation and systematic intervention design. The MIED (Mindfulness Intervention for Emotional Distress) systematic theory was developed by researcher Liu Xinghua based on MBSR/UP. Its core theory is the "Diamond Model" of emotional distress, identifying four core maintenance mechanisms: engagement in life, distress tolerance regulation, emotional behavior regulation, and cognitive flexibility enhancement. Adult studies on MIED have shown significant improvements in emotional distress symptoms, but no specialized research has been conducted in adolescent populations.

Methods: This study is a feasibility exploratory study employing a single-group pre-post design, planning to recruit 24-30 adolescents aged 12-18 years with emotional distress, to undergo an 8-week MIED adolescent mindfulness intervention group. Data will be collected at multiple time points: baseline, after session 4, after session 8, and at 1-month follow-up.

Objectives: The primary objective is to evaluate the feasibility of the MIED-based adolescent mindfulness intervention group (recruitment feasibility, retention feasibility, implementation feasibility, acceptability, and safety). The secondary objective is to preliminarily assess the intervention's effectiveness on outcomes such as anxiety, depression, and stress, estimate effect sizes, and provide methodological preparation for subsequent large-scale randomized controlled trials (RCTs).

Panoramica dello studio

Stato

Non ancora reclutamento

Condizioni

Intervento / Trattamento

Tipo di studio

Interventistico

Iscrizione (Stimato)

40

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

  • Nome: Mei Yuan, M.S. in Psychology
  • Numero di telefono: +8618513356664
  • Email: bettyyuan8@163.com

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

  • Bambino
  • Adulto

Accetta volontari sani

No

Descrizione

Inclusion Criteria:

  • Age 12-18 years, minors (junior and senior high school level; special note: individuals who exceed the age criterion due to dropout or leave of absence but are still in junior or senior high school may be included if they meet all other inclusion criteria).
  • PHQ-9 total score 10-19 or GAD-7 total score 10-14 (either criterion is sufficient, indicating mild to moderate depressive or anxiety symptoms).
  • Informed consent from both the participant and their parent/legal guardian.

Exclusion Criteria:

  • PHQ-9 total score ≥20 or GAD-7 total score ≥15, or clinical diagnosis of anxiety or depressive disorder (if severe depression or anxiety, referral to individual therapy is recommended).
  • PHQ-9 item 9 score ≥2 and clinical interview confirming active suicidal ideation or plan.
  • Presence of psychotic symptoms, bipolar disorder, or severe self-harm behaviors (requiring medical treatment).
  • Currently receiving other systematic psychotherapy.
  • Severe cognitive or developmental disorders that prevent understanding of group content.
  • Unable to use a smartphone (affecting use of AI-assisted tools).

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: N / A
  • Modello interventistico: Assegnazione di gruppo singolo
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: Adolescent Group

Adolescent Group Curriculum： An 8-week adolescent group curriculum adapted from the MIED adult 8-week program, incorporating the cognitive developmental characteristics, social needs, and preferences of adolescents. Curriculum content is based on the MIED Diamond Model modules: awareness and mindfulness, emotion recognition, engagement in life, distress tolerance regulation, emotional behavior regulation, cognitive flexibility enhancement, integration and daily practice, etc.

Parent Group Curriculum： The parent group setup references the approach of Pan et al. (2025) in including a parent group in the Chinese version of UP-A. Core objectives of the parent group include: enhancing parents' understanding of adolescent emotional distress; teaching parents strategies to support adolescent mindfulness practice and emotion regulation; improving parent-child communication; and improving parents' own MIED Diamond Model practice and stress management.
Altro: MIED-based Adolescent Mindfulness Intervention Group

Adolescent Group： Basic curriculum structure: 8 sessions, once per week, 90-120 minutes per session, 12-15 participants per group.

Parent Group Curriculum： Number of sessions: 4 (or 8, synchronized with the adolescent group), once every 2 weeks (or once per week), 120 minutes per session.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Generalized Anxiety Disorder 7-item scale(GAD-7)
Lasso di tempo: Screening phase(Pre-enrollment screening,T0）, Baseline assessment(1 day before session 1,T1), Week4(After session 4,T2) ,Week8(After session 8,T3), and 1 month(post-intervention follow-up,T4)
Anxiety symptoms: Generalized Anxiety Disorder 7-item scale (GAD-7). Scores range from 0 to 21, with higher scores indicating worse outcome (more severe anxiety symptoms)
Screening phase(Pre-enrollment screening,T0）, Baseline assessment(1 day before session 1,T1), Week4(After session 4,T2) ,Week8(After session 8,T3), and 1 month(post-intervention follow-up,T4)
Patient Health Questionnaire-9(PHQ-9)
Lasso di tempo: Screening phase(Pre-enrollment screening,T0）, Baseline assessment(1 day before session 1,T1), Week4(After session 4,T2) ,Week8(After session 8,T3), and 1 month(post-intervention follow-up,T4)
Depressive symptoms:Patient Health Questionnaire-9, 9 items, self-report;Scores range from 0 to 27, with higher scores indicating worse outcome.
Screening phase(Pre-enrollment screening,T0）, Baseline assessment(1 day before session 1,T1), Week4(After session 4,T2) ,Week8(After session 8,T3), and 1 month(post-intervention follow-up,T4)
Perceived Stress Scale(PSS-10)
Lasso di tempo: Screening phase(Pre-enrollment screening,T0）, Baseline assessment(1 day before session 1,T1), Week4(After session 4,T2) ,Week8(After session 8,T3), and 1 month(post-intervention follow-up,T4)
Perceived stress:Perceived Stress Scale, 10 items, self-report;Scores range from 0 to 40, with higher scores indicating worse outcome.
Screening phase(Pre-enrollment screening,T0）, Baseline assessment(1 day before session 1,T1), Week4(After session 4,T2) ,Week8(After session 8,T3), and 1 month(post-intervention follow-up,T4)

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
10-item Connor-Davidson Resilience Scale(CD-RISC-10)
Lasso di tempo: Baseline assessment(1 day before session 1,T1), Week4(After session 4,T2) ,Week8(After session 8,T3), and 1 month(post-intervention follow-up,T4)
Resilience :Connor-Davidson Resilience Scale-10, 10 items, self-report;Scores range from 0 to 40, with higher scores indicating better outcome
Baseline assessment(1 day before session 1,T1), Week4(After session 4,T2) ,Week8(After session 8,T3), and 1 month(post-intervention follow-up,T4)
Difficulties in Emotion Regulation Scale-Short Form(DERS-16)
Lasso di tempo: Baseline assessment(1 day before session 1,T1), Week4(After session 4,T2) ,Week8(After session 8,T3), and 1 month(post-intervention follow-up,T4)
Difficulties in emotion regulation:Difficulties in Emotion Regulation Scale-Brief, 16 items, self-report;Scores range from 16 to 80, with higher scores indicating worse outcome
Baseline assessment(1 day before session 1,T1), Week4(After session 4,T2) ,Week8(After session 8,T3), and 1 month(post-intervention follow-up,T4)
Overall Anxiety Severity and Impairment Scale (OASIS)
Lasso di tempo: Baseline (T1), Weeks 1, 2, 3, 4 (T2), 5, 6, 7 (during intervention), Week 8 immediately post-intervention (T3), and 1 month(post-intervention follow-up,T4)
The OASIS is a 5-item self-report measure designed to assess the frequency and severity of anxiety symptoms, as well as the extent of anxiety-related functional impairment and avoidance, over the past week. Each item is rated on a 5-point scale from 0 to 4, with total scores ranging from 0 to 20. Higher scores indicate greater overall anxiety severity and impairment. The OASIS has demonstrated good reliability and validity in both clinical and nonclinical samples (Norman et al., 2006).
Baseline (T1), Weeks 1, 2, 3, 4 (T2), 5, 6, 7 (during intervention), Week 8 immediately post-intervention (T3), and 1 month(post-intervention follow-up,T4)
Overall Depression Severity and Impairment Scale (ODSIS)
Lasso di tempo: Baseline (T1), Weeks 1, 2, 3, 4 (T2), 5, 6, 7 (during intervention), Week 8 immediately post-intervention (T3), and 1 month(post-intervention follow-up,T4)
The ODSIS is a 5-item self-report measure designed to assess the frequency and severity of depressive symptoms, as well as depression-related functional impairment and avoidance, over the past week. Each item is rated on a 5-point scale from 0 to 4, with total scores ranging from 0 to 20. Higher scores indicate greater overall depression severity and impairment. The ODSIS has demonstrated good reliability and validity in both clinical and nonclinical samples (Bentley et al., 2014).
Baseline (T1), Weeks 1, 2, 3, 4 (T2), 5, 6, 7 (during intervention), Week 8 immediately post-intervention (T3), and 1 month(post-intervention follow-up,T4)
Five Facet Mindfulness Questionnaire-Short Form(FFMQ-SF)
Lasso di tempo: Baseline assessment(1 day before session 1,T1), Week4(After session 4,T2) ,Week8(After session 8,T3), and 1 month(post-intervention follow-up,T4)
Mindfulness level:Five Facet Mindfulness Questionnaire-Short Form, 20 items, self-report; Scores range from 0 to 5 for average item scores and 24-120 for total scores, with higher scores indicating better outcome
Baseline assessment(1 day before session 1,T1), Week4(After session 4,T2) ,Week8(After session 8,T3), and 1 month(post-intervention follow-up,T4)

Altre misure di risultato

Misura del risultato
Misura Descrizione
Lasso di tempo
Process indicator - attendance rate
Lasso di tempo: Week 8 (immediately after session 8,T3)
attendance rate. Scores range from 0% to 100%, with higher scores indicating better outcome.
Week 8 (immediately after session 8,T3)
Process indicator -homework completion rate
Lasso di tempo: Week 8 (immediately after session 8,T3)
Scores range from 0% to 100%, with higher scores indicating better outcome.
Week 8 (immediately after session 8,T3)
Process indicator - dropout rate and reasons
Lasso di tempo: Week 8 (immediately after session 8,T3)
dropout rate and reasons: Scores range from 0% to 100%, with higher scores indicating worse outcome
Week 8 (immediately after session 8,T3)
Acceptability
Lasso di tempo: Week 8 (immediately after session 8,T3)
self-developed acceptability and satisfaction scale (adolescent/parent version, 1-5 Likert scale).with higher scores indicating better outcome
Week 8 (immediately after session 8,T3)
Adverse Event Records
Lasso di tempo: Baseline (T1); Week4 (T2) during the intervention; immediately post-intervention at Week 8(T3); and1 month(post-intervention follow-up,T4)
adverse event records (emotional deterioration, self-harm reports, number of crisis triggers);with more records indicating worse outcome
Baseline (T1); Week4 (T2) during the intervention; immediately post-intervention at Week 8(T3); and1 month(post-intervention follow-up,T4)

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Xinghua Liu

Investigatori

  • Investigatore principale: Xinghua Liu, PhD, Peking University

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Stimato)

20 luglio 2026

Completamento primario (Stimato)

31 marzo 2027

Completamento dello studio (Stimato)

31 maggio 2027

Date di iscrizione allo studio

Primo inviato

1 luglio 2026

Primo inviato che soddisfa i criteri di controllo qualità

20 luglio 2026

Primo Inserito (Effettivo)

21 luglio 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

21 luglio 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

20 luglio 2026

Ultimo verificato

1 luglio 2026

Maggiori informazioni

Termini relativi a questo studio

Parole chiave

Altri numeri di identificazione dello studio

  • E20260701

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

SÌ

Descrizione del piano IPD

Deidentified individual participant data (IPD) underlying the results reported in the main publication will be available upon reasonable request after publication of the primary trial results. The shared data will include deidentified participant-level data used in the primary and secondary analyses, including baseline characteristics, group allocation, outcome measures, follow-up assessments, adherence indicators, and safety outcomes. Directly or indirectly identifiable information will not be shared. Access will be provided to qualified researchers with a methodologically sound proposal, subject to approval by the principal investigator and relevant ethics requirements, and after completion of a data use agreement.

Tipo di informazioni di supporto alla condivisione IPD

  • STUDIO_PROTOCOLLO
  • LINFA
  • ICF
  • CODICE_ANALITICO
  • RSI

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

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