The study is un-controlled with 250 participants that will undergo a brief trauma-focused Internet-based CBT treatment, delivered as a three-week treatment comprising of four modules (psychoeducation/rational, in vivo exposure, imaginal exposure and relapse prevention). The primary outcome is the PCL-5. Secondary outcomes are level of depression (PHQ-9), quality of life (WSAS) and predictors, moderators and mediators of clinically meaningful change in symptoms, dropout rate, rates of inclusion, attrition, adherence,and negative effects.
Self-reported, qualitative data from participants will be gathered at treatment completion to capture participants' experiences of participating in the intervention, as well as their views on how to further improve the intervention. The treatment effects will be evaluated using a within-group design with repeated measurements. Participants in the study will be will recruited from patients treated in the somatic trauma care at the Karolinska University Hospital in Stockholm, Sweden.
