This paper describes the protocol developed in Chile to evaluate interventions for adolescents exposed to interpersonal violence and follows CONSORT guidelines (Shulz et al., 2010). The objective is to evaluate the effectiveness of two group intervention models (Trauma Focused Cognitive Behavioral Therapy and Interpersonal Therapy) in stabilising the psychosocial functioning of adolescent participants. Methods/Design. It is a randomised controlled trial with three groups: two intervention groups (TF-CBT and IPT) and an active control group (art therapy). The participants will be eighty-four adolescents between 13 to 17 years old on the waiting list for treatment in specialist trauma services. Participants will be assigned to one of three groups and participate in 12 group therapy sessions. Participants' progress in post-traumatic stress and depression symptomatology, self-regulation and interpersonal problems will be assessed. Measures will be administered before the start of the intervention, in sessions six, seven, twelve and two months after the end of the intervention. Adherence to the intervention and its acceptability by the participants will also be evaluated. Discussion. This study seeks to contribute to developing scalable, evidence-based interventions in the Chilean context to improve access to specialist intervention. Trial Registration. 19/05/2021, code ISRCTN10290141. [ABSTRACT FROM AUTHOR]