School of Kinesiology and Health Sciences, York University, Toronto, ON, Canada.
Department of Psychology, University of Victoria, Victoria, BC, Canada.
JMIR Ment Health. 2024 Jun 12;11:e55283. doi: 10.2196/55283.
Internet-based cognitive behavioral therapy (CBT) and stand-alone mindfulness meditation interventions are gaining empirical support for a wide variety of mental health conditions. In this study, we test the efficacy of web-based therapist-guided mindfulness-based cognitive behavioral therapy (CBT-M) for body dysmorphic disorder (BDD), a psychiatric disorder characterized by preoccupations with perceived defects in appearance.
This study aims to determine whether CBT-M for BDD delivered on the web is feasible and acceptable and whether mindfulness meditation adds to CBT treatment effects for BDD.
In this 8-week, 2-arm, parallel pilot randomized controlled trial, n=28 adults (aged between 18 and 55 years) were randomly allocated to an experimental group (web-based therapist-guided CBT-M) or a control group (web-based therapist-guided CBT). Study retention, accrual, and intervention adherence were assessed, along with self-report measures for BDD, depression, anxiety, and pain intensity taken at baseline and postintervention.
This study was feasible to implement and deemed acceptable by participants. After 8 weeks, significant improvements were found on all outcome measures for both treatment groups, and large between-group effect sizes favoring CBT-M were found for BDD symptom severity (d=-0.96), depression (d=-1.06), pain severity (d=-1.12), and pain interference (d=-1.28). However, linear mixed models demonstrated no significant differences between the groups over 8 weeks.
The results suggest that mindfulness meditation may add to beneficial web-based CBT treatment effects for BDD. An adequately powered randomized control trial of web-based CBT-M is warranted.
ClinicalTrials.gov NCT05402475, http://clinicaltrials.gov/ct2/show/NCT05402475.
基于互联网的认知行为疗法（CBT）和独立的正念冥想干预措施在各种心理健康状况中得到了越来越多的实证支持。在这项研究中，我们测试了基于网络的治疗师指导的正念认知行为疗法（CBT-M）治疗躯体变形障碍（BDD）的疗效，BDD 是一种以对外观感知缺陷的困扰为特征的精神障碍。
本研究旨在确定基于网络的 CBT-M 治疗 BDD 是否可行和可接受，以及正念冥想是否能增强 CBT 治疗 BDD 的效果。
在这项 8 周、2 臂、平行的试点随机对照试验中，28 名年龄在 18 至 55 岁之间的成年人被随机分配到实验组（基于网络的治疗师指导的 CBT-M）或对照组（基于网络的治疗师指导的 CBT）。评估了研究保留率、招募率和干预依从性，以及在基线和干预后使用自我报告的 BDD、抑郁、焦虑和疼痛强度测量工具进行评估。
本研究的实施是可行的，并且被参与者认为是可以接受的。经过 8 周后，两组的所有结果指标都有显著改善，并且在 BDD 症状严重程度（d=-0.96）、抑郁（d=-1.06）、疼痛严重程度（d=-1.12）和疼痛干扰（d=-1.28）方面，CBT-M 具有较大的组间效应。然而，线性混合模型显示，在 8 周内两组之间没有显著差异。
结果表明，正念冥想可能会增加基于网络的 CBT 治疗 BDD 的效果。需要进行一项足够大的、基于网络的 CBT-M 随机对照试验。
ClinicalTrials.gov NCT05402475，http://clinicaltrials.gov/ct2/show/NCT05402475。
