The paper describes the development of Dynamic Interpersonal Therapy for use with complex depression (DITCC), and a pilot study testing DITCC’s effectiveness. The pilot found large pre-post improvements in well-being and distress; moderate rates of reliable improvement and clinically significant change; and curvilinear declines in depression and anxiety. Treatment completers and near-completers (N= 19) showed a significant curvilinear decline in symptoms of depression (PHQ-9) and anxiety (GAD-7). The results provide preliminary evidence that DITCC can be used as an effective treatment approach for complex depression. However, further research is needed to test its effectiveness in different settings with a larger sample size, using appropriate comparison groups under controlled conditions to further elaborate the short-term and long-term effects.

中文翻译：

---

复杂护理中动态人际关系治疗的发展（DITCC）：一项初步研究

本文介绍了用于复杂抑郁症（DITCC）的动态人际疗法的发展，以及测试DITCC有效性的初步研究。飞行员发现在岗前的福利和苦恼有很大改善；中等程度的可靠改善和具有临床意义的改变；以及抑郁和焦虑的曲线下降。治疗完成者和接近完成者（N = 19）显示抑郁症（PHQ-9）和焦虑症（GAD-7）的曲线明显下降。结果提供了初步证据，DITCC可以用作复杂抑郁症的有效治疗方法。但是，需要进一步研究以在较大样本量的不同环境下测试其有效性，并在控制条件下使用适当的比较组进一步阐述短期和长期影响。