APOLO-Teens, a web-based intervention for treatment-seeking adolescents with overweight or obesity: study protocol and baseline characterization of a Portuguese sample

Purpose APOLO-Teens is an ongoing web-based program combining a manualized intervention delivered by Facebook®, a self-monitoring web application and monthly chat sessions to optimize treatment as usual for adolescents with overweight and obesity. The aims of this paper are twofold: (1) to describe the study protocol of the APOLO-Teens randomized controlled effectiveness trial and (2) to present baseline descriptive information of the Portuguese sample.