Early Life Intervention in Pediatrics Supported by E-health

ELIPSE-I represents a single-blind randomized controlled parallel-group clinical trial. In ELIPSE-I, 148 children, matched for sex, 6-12 years of age with a BMI \>97 centile based on national growth charts will be included. Children will be recruited at the children's university hospital and randomly (1:1) assigned to a control and intervention group. All participants receive treatment-as-usual (TAU), parents of participants in the intervention group additionally receive a smartphone application (lifestyle app) for 20 weeks. The app aims to promote healthy behavior through cognitive-behavioral impact factors (i.e., psychoeducation, goal setting), that are applied by a psychologist via structured feedback. Single-blinded assessments will be conducted at baseline, following the intervention period of 20 weeks, and at 6-month follow-up after the end of the intervention. The primary endpoint is reduction of the TEI/TEE ratio in children with obesity. Secondary endpoints in ELIPSE-I include lowering the severity of obesity, cardiometabolic risk factor improvement, reduction in chronic low-level inflammatory biomarkers, and improved children's quality of life. A further endpoint is acceptance and usability of the app.