To build the evidence for a randomized controlled trial, a pilot study was conducted to investigate the feasibility, acceptability and effectiveness of a group-psychotherapy based on Metacognitive Interpersonal Therapy (MIT-G) for patients with personality disorders (PDs). Ten outpatients with PD diagnoses were offered 16 sessions of MIT-G delivered in group format. Effect sizes were calculated for changes from baseline to treatment end for clinical symptoms, interpersonal difficulties, and metacognition. Nine patients finished the full treatment protocol with nonsignificant large effect sizes obtained for change in depression, metacognition, impulsiveness and interpersonal problems measures. This is the first study suggesting that MIT-G is acceptable to outpatients across the spectrum of PDs and is associated with improvements in clinical symptoms, social functioning and metacognition. Despite the limitations of a pilot study, evidence of MIT-G effectiveness was sufficient to warrant further investigation.

中文翻译：

---

人格障碍群体的元认知人际关系治疗：公共心理健康环境中的一项试点研究的初步结果

为了建立随机对照试验的证据，进行了一项试点研究，以调查基于元认知人际关系疗法 (MIT-G) 的团体心理疗法对人格障碍 (PD) 患者的可行性、可接受性和有效性。10 名诊断为 PD 的门诊患者接受了 16 次以小组形式提供的 MIT-G。根据临床症状、人际关系困难和元认知从基线到治疗结束的变化计算效果大小。9 名患者完成了完整的治疗方案，在抑郁、元认知、冲动和人际关系问题措施的变化方面获得了不显着的大效应量。这是第一项表明 MIT-G 可被各种 PD 的门诊患者接受的研究，并且与临床症状、社会功能和元认知的改善有关。尽管试点研究存在局限性，但 MIT-G 有效性的证据足以保证进一步调查。