This study focuses on adolescents who experience both substance use problems and post-traumatic stress disorder (PTSD), which often occur together and can seriously impact mental health, school performance, and relationships if left untreated. The goal is to evaluate a trauma-focused treatment called Concurrent Treatment of PTSD and Substance Use Disorders for Adolescents (COPE-A), which is designed to address both conditions at the same time. Earlier pilot studies showed that COPE-A is safe, feasible, and effective in reducing substance use and PTSD symptoms compared to a supportive counseling approach.

In this larger study, 120 adolescents from across the U.S. will receive treatment through telehealth. Researchers will compare COPE-A to person-centered therapy to see which leads to greater improvements in substance use and PTSD symptoms. The study will also examine effects on depression, HIV risk behaviors, relationships, and overall quality of life, while using brief daily surveys to track changes over time.

The study will test a computerized treatment with subjects ages 13-17 years who are interested in seeking treatment for alcohol and/or cannabis use. Follow-up assessments will be conducted at one- and three-months following treatment.