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Background <p>Family involvement in dialectical behavior therapy (DBT) improves nonsuicidal self-injury (NSSI) outcomes in adolescents, yet many adolescents resist conjoint treatment with parents, highlighting the need for alternative delivery formats. This pilot study preliminarily examined whether parallel adolescent and parent DBT skills training (DBT-SP, in which parents attended separate concurrent skills groups) shows promise compared with adolescent-only DBT skills training (DBT-S) in reducing NSSI and associated symptoms.</p> Methods <p>In this pilot randomized controlled trial, 38 adolescents aged 12–18 years meeting DSM-5 criteria for NSSI disorder were randomized to DBT-SP (<i>n</i> = 19) or DBT-S (<i>n</i> = 19). Adolescents in both groups received weekly 120-minute group sessions over 12 weeks. Additionally, parents in the DBT-SP group received parallel 120-minute skills training sessions (separate from adolescents), while parents in the DBT-S group received no structured intervention. The primary outcome was NSSI severity assessed using the Ottawa Self-Injury Inventory at baseline and at weeks 4, 8, and 12.</p> Results <p>NSSI frequency decreased in both groups from baseline to week 12 (time effect, <i>p</i> &lt; 0.01). The DBT-SP group demonstrated greater reductions in depressive (<i>p</i> = 0.03) and anxiety symptoms (<i>p</i> = 0.01). Positive parent-adolescent interactions increased from a median of 2 at baseline to 11 times weekly by the end of week 11 in the DBT-SP group while remaining stable in the DBT-S group (interaction <i>p</i> &lt; 0.01).</p> Conclusions <p>In this pilot randomized controlled trial, compared with adolescent-only delivery, parallel adolescent-parent DBT skills training was associated with reduced anxiety and depressive symptoms in adolescents and increased positive family interactions. These preliminary findings warrant replication in larger, fully powered confirmatory trials.</p> Clinical trial number <p>Chinese Clinical Trial Registry, ChiCTR2500105036. Retrospectively registered on June 27, 2025.</p>

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Effect of parallel adolescent and parent dialectical behavior therapy skills training vs. adolescent-only skills training on nonsuicidal self-injury: a pilot randomized trial

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年6月1日

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  • Shunhua Ye,
  • Xueling Wei,
  • Chen Deng,
  • Peiyi Chen,
  • Chanjuan Yang,
  • Yanling Zhou,
  • Jianghui Dong

摘要

Background

Family involvement in dialectical behavior therapy (DBT) improves nonsuicidal self-injury (NSSI) outcomes in adolescents, yet many adolescents resist conjoint treatment with parents, highlighting the need for alternative delivery formats. This pilot study preliminarily examined whether parallel adolescent and parent DBT skills training (DBT-SP, in which parents attended separate concurrent skills groups) shows promise compared with adolescent-only DBT skills training (DBT-S) in reducing NSSI and associated symptoms.

Methods

In this pilot randomized controlled trial, 38 adolescents aged 12–18 years meeting DSM-5 criteria for NSSI disorder were randomized to DBT-SP (n = 19) or DBT-S (n = 19). Adolescents in both groups received weekly 120-minute group sessions over 12 weeks. Additionally, parents in the DBT-SP group received parallel 120-minute skills training sessions (separate from adolescents), while parents in the DBT-S group received no structured intervention. The primary outcome was NSSI severity assessed using the Ottawa Self-Injury Inventory at baseline and at weeks 4, 8, and 12.

Results

NSSI frequency decreased in both groups from baseline to week 12 (time effect, p < 0.01). The DBT-SP group demonstrated greater reductions in depressive (p = 0.03) and anxiety symptoms (p = 0.01). Positive parent-adolescent interactions increased from a median of 2 at baseline to 11 times weekly by the end of week 11 in the DBT-SP group while remaining stable in the DBT-S group (interaction p < 0.01).

Conclusions

In this pilot randomized controlled trial, compared with adolescent-only delivery, parallel adolescent-parent DBT skills training was associated with reduced anxiety and depressive symptoms in adolescents and increased positive family interactions. These preliminary findings warrant replication in larger, fully powered confirmatory trials.

Clinical trial number

Chinese Clinical Trial Registry, ChiCTR2500105036. Retrospectively registered on June 27, 2025.