Dialectical Behavior Therapy and Cognitive Processing Therapy Delivered Sequentially to a Woman Veteran: A Promising Alternative to Concurrent Dialectical Behavior Therapy–Prolonged Exposure

Post-traumatic stress disorder (PTSD) and borderline personality disorder (BPD) are complex and chronic conditions that result in impairment across a number of clinically significant domains. Although the two diagnoses reflect distinct clinical syndromes, they often present comorbidly. Furthermore, the comorbidity of the two diagnoses predicts increased symptomatology and may also result in treatment difficulties that would not arise when treating PTSD without a concurrent BPD diagnosis. The challenging nature of comorbid PTSD and BPD diagnoses has led to an increased interest in integrative approaches to treating both diagnoses together. Recent research has suggested that the integration of prolonged exposure (PE; an evidence-based therapy for PTSD) and dialectical behavior therapy (DBT; an evidence-based therapy for BPD) into one treatment approach (CBT–PE) can offer superior outcomes when compared to treating each diagnosis separately. However, at this time, the literature does not document any such examinations with regards to cognitive processing therapy (CPT), another evidence-based therapy for PTSD. This paper reflects a first step towards exploring the integration of CPT and DBT. In this case, a female-identified military Veteran seeking care at a Veterans Affairs healthcare system was treated utilizing integrated, though sequential, CPT and DBT. The clinical results of this case are discussed, as are the implications for other clinicians considering integrating CPT and DBT.