Importance: There is a lack of trials examining the effect of counseling interventions for child, adolescent, and younger adult (CAYA) cancer survivors.
Objective: To assess lifestyle habits and the psychosocial situation of CAYAs to determine the efficacy of needs-based interventions in the CARE for CAYA program (CFC-P).
Design, Setting, And Participants: The CFC-P was conducted as a multicenter program in 14 German outpatient clinics, mainly university cancer centers.
Objective: To explore whether a structured counselling-based intervention increases vigorous physical activity behaviour of adolescent and young adult cancer survivors.
Design: Randomized controlled phase II trial.
Setting: University Cancer Center Hamburg, Germany.