TF-CBT for Long-term PTSD, Major Depressive Disorder and Anxiety Disorders in Victims of Terrorism

The objective of this study is to test the efficacy of a Trauma-Focused Cognitive-Behavioural Therapy (TF-CBT) adapted for use with victims of terrorism in Spain who are diagnosed with posttraumatic stress disorder (PTSD), major depressive disorder and/or anxiety disorders subsequent to direct or indirect exposure to a series of terrorist attacks that occurred 20 years prior to treatment on average. Spanish victims who meet the criteria for long-term posttraumatic stress disorder, major depressive disorder, and/or anxiety disorders related to direct or indirect exposure to terrorist attacks that occurred 20 years ago, on average, will be randomly assigned to 16 weekly sessions of TF-CBT (experimental group) or waiting list control (control group) conditions. Between groups comparisons related to diagnostic rates and posttraumatic, depressive and anxiety symptoms will be made immediately after the intervention. Pre- follow-up comparisons related to diagnostic rates and posttraumatic, depressive, and anxiety symptoms will be carried out for the experimental group. It is hypothesised that participants receiving TF-CBT will have significantly lower diagnostic rates and mean levels of posttraumatic, depressive and anxiety symptoms than the control group immediately after the intervention, and that they will experience significant pre-treatment to 6-month follow-up decreases in diagnostic rates and in posttraumatic, depressive and anxiety symptoms.