Overweight and Obesity in Adolescents - Sleep Behavioral Intervention

Summary

Sleep plays a crucial role in energy balance, alongside diet and physical activity. Research has linked poor sleep quality and short sleep duration to obesity and cardiometabolic risk, such as insulin resistance and hypertension. The nature of this association is complex, and several mechanims have been suggested.

Scientific evidence suggests that sleep interventions may provide additional benefits in optimizing the effectiveness of overweight/obesity treatment in pediatric populations. Although some studies have explored this hypothesis, methodological heterogeneity hampers clear interpretation of the results.

The main goal of this clinical trial is is to evaluate the efficacy of a sleep behavioral intervention, combined with standard obesity treatment, in reducing adiposity (measured by BMI z-score, fat mass percentage, or fat-free mass index) in adolescents with overweight or obesity.

This randomized controlled trial will compare a control group receiving treatment as usual (or standard obesity treatment) with an intervention group receiving treatment as usual plus a sleep behavioral intervention.

Participants will be randomized into two groups: intervention and control. Throughout the study period, all medical consultations will include standard interventions focused on nutrition, physical activity/sedentary behavior, and other lifestyle factors. The sleep-focused intervention will be delivered by psychologists.

Participants will attend clinic visits every two months during the 6-month intervention period, and every three months during the subsequent 6-month follow-up period.

Conditions

• Obesity and Overweight
• Sleep Disorder

Interventions

BEHAVIORAL

Sleep Behavioral Intervention

Our research team, composed by pediatricians with experience in Obesity and Adolescent Medicine, and clinical psychologists with experience in Sleep, Obesity, and Cognitive Behavioral Therapy (CBT), developed a specific manual for this project: "Behavioral Sleep Intervention - SLEEP-OB - Therapist Support Manual." The manual was adapted based on CBT models for adults and adolescents with insomnia and on CBT for adolescents with other sleep disorders and comorbidities, namely obesity. The behavioral intervention aims to promote sustainable changes in sleep. It includes behavioral strategies (such as sleep restriction, stimulus control), cognitive strategies (cognitive reappraisal/restructuring, cognitive control, paradoxical intention), mixed strategies (sleep education/hygiene, relaxation), self-monitoring, and problem identification and resolution. The intervention will take place over six months, with a total of seven sessions (in-person and by video call).

OTHER

Standard Obesity Treatment

Standard obesity treatment for pediatric obesity according to international guidelines. It comprises pediatric appointments, and usually also nutrition and nursing appointments, every 2 to 3 months. These appointments include an anthropometric evaluation, physical examination and personalized multicomponent behavioral intervention with focus on nutrition, physical activity/sedentary behavior and other lifestyle recommendations. This standard intervention is common for both groups/arms.

Sponsors & Collaborators

• University of Beira Interior

  lead OTHER

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

SINGLE

Model

PARALLEL

Eligibility

Min Age

13 Years

Max Age

17 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2025-06-03

Primary Completion

2026-06-30

Completion

2026-12-31

Countries

• Portugal

Study Locations