Development of a Storytelling Video Self-Help Intervention Based on Acceptance and Commitment Therapy for Major Depression: Open Trial Results.

This study involved the initial development and testing of a video self-help intervention called LifeStories, which features real patients describing their use of coping strategies for depression based on Acceptance and Commitment Therapy. We conducted a baseline-controlled open trial (AB design) of 11 individuals diagnosed with major depressive disorder. Participants reported high levels of satisfaction and transportation (i.e., engagement) after watching LifeStories. No significant changes were observed during the 4-week baseline period in terms of interviewer-rated depression severity (primary outcome), but a significant and large effect size improvement was observed at Week 8 postintervention. The majority of participants (54.5%) showed a reliable and clinically significant posttreatment response. Significant improvements also were observed during the intervention period only for self-reported depressive symptoms and aspects of mindfulness (nonreactivity). Qualitative data analysis of participant interviews identified additional areas for improvement and refinement. Future testing in a randomized trial is warranted based on these encouraging results.