An app based ecological momentary intervention tool to enhance the treatment of obesity in young adolescents to maintain weight loss and improve wellbeing

ISRCTN ISRCTN47384427
DOI https://doi.org/10.1186/ISRCTN47384427
Secondary identifying numbers 211172
Submission date
24/08/2021
Registration date
14/10/2021
Last edited
14/10/2021
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Nutritional, Metabolic, Endocrine
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
The worldwide prevalence of pediatric overweight and obesity has risen sharply over the last 35 years. This ‘obesity epidemic’ is alarming because overweight is associated with numerous negative consequences, both in the short and in the long term. Evidence shows that the odds of spontaneous remission of pediatric overweight are low, making focusing on treatment of great importance. Currently, multidisciplinary interventions of several weeks that combine a dietary approach, exercise, behavioral and cognitive therapy techniques remain the standard. However, the effectiveness on the long term of these intervention programs remains low, including substantial relapse rates. When considering initiatives to ameliorate treatment and after care, we should consider recent findings that plead for more personalized interventions. Overweight is a heterogeneous disease, with multicausal origins. A way to approach this multicausal origin, is by using a network approach. Here, the causes of overweight are seen as complex networks of variables (biological, psychological and social factors) that interact with each other directly, within a certain environment and culture. A way to map and respond to these networks is by introducing an Ecological Momentary Intervention APP.
The aim of the current study is to test whether an network-informed eHealth intervention, based on an Ecological Momentary Intervention APP as blended care, with additional eHealth Cognitive Behavioral Therapy Modules, on top of care as usual, will result in BMI reduction, improvement of quality of life, wellbeing and eating behavior.

Who can participate?
Youngsters aged 10-16 years old who are involved in an obesity treatment program (care as usual).

What does the study involve?
Participants are randomly allocated to receive either care as usual or the app-based Ecological Momentary Intervention and CBT-based intervention on top of care as usual. The app-based intervention lasts 4 weeks and consists of 7 modules. The participants are tested before and after the training and at 2 and 6 months follow-ups to measure quality of life, well-being, perception of health and eating behavior.

What are the possible benefits and risks of participating?
It is expected that the quality of life, the wellbeing, the perception of health and the eating behavior of the children in the experimental group will improve more as they have a personal ‘coach’ that help them 24hours/day. Adding an additional value to the current childhood obesity treatments is the purpose of this study. If the app-based intervention is found to be effective, the next step is to implement it in all treatment programs for this target group.
There are no risks of participating in the study.

Where is the study run from?
Belgium: Zeepreventorium
France: SSR Nutrition Obesité UGECAM Tza Nou & CMI Romagnat

When is the study starting and how long is it expected to run for?
August 2021 to August 2022

Who is funding the study?
EU Horizon 2020, EIT Digital & EIT Health (Germany)

Who is the main contact?
Maurane Desmet, Maurane.Desmet@Ugent.be

Contact information

Miss Maurane Desmet
Scientific

Henri Dunantlaan 2
Gent
9000
Belgium

ORCiD logoORCID ID 0000-0001-6338-3078
Phone +32(0)9/264 94 27
Email Maurane.Desmet@Ugent.be

Study information

Study designInterventional randomized controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet No participant information sheet available
Scientific titleImproving weight loss and wellbeing in adolescents with obesity via an Ecological Momentary - and CBT app-based intervention.
Study objectivesWe expect that adding an Ecological Momentary CBT-based intervention to the care as usual results in:
1. BMI reduction (5-10%)
2. Improvement of quality of life (10-20%)
3. Improvement of wellbeing (10-20%)
4. Improvement of perception of health (10-20%)
5. Improvement of eating behavior (10-20%)
6. Satisfaction with Think Slim Junior APP
7. Intention to continue using Think Slim Junior APP compared to care as usual only (CAU-only).
Ethics approval(s)Not provided at time of registration
Health condition(s) or problem(s) studiedChildhood obesity
InterventionCurrent interventions as of 14/10/2021:
The Think Slim Junior APP consists of two parts: (1) an app-based Ecological Momentary Intervention and (2) an app-based Cognitive Behavioral Therapy (CBT)-based intervention as blended care, as a personal coach on top of care as usual

(1) Ecological Momentary Assessment intervention (EMI) is a framework that combines real-time assessment (Ecological Momentary Assessment) with feedback. The app-based EMI provides feedback, based on algorithms, relying on a network-approach. It maps individual networks of variables (sleep quality, illness, emotions, craving, social circumstances, activity, location, eating behavior) via registrations in the APP and, on this basis, the EMI estimates when the adolescents are likely to overeat (‘risky’ moments) and intervenes at such moments via individualized feedback.

(2) The CBT-based intervention consists of 7 modules (eHealth, via the APP) with visualized exercises (to open at least twice a week) (automatic online reminders and compliments) on:
• psycho-education (1),
• motivational parts (internal and external reinforcers) (2),
• goalsetting + contracting (3),
• self observation and problem solving (4),
• self instructions and self efficacy, identifying negative thinking (5),
• emotion regulation and seeking support (6),
• combatting external eating via stimulus control (7),

(3) The CAU (care as usual) consists of:
• Psycho-education on food and physical activity
• Sessions on diet/healthy eating and healthy food habits
• Physical activity (4h a day)
• Parental involvement
• Protocols about psychological aspects: problem solving, social competencies and self-worth
• Individual sessions with a psychologist (every 2 weeks)

Participants are randomly allocated to receive either care as usual (control group) or the app-based Ecological Momentary Intervention and CBT-based intervention on top of care as usual (experimental group). Randomization is stratified on age and gender via sealed envelope.

The app-based intervention lasts 4 weeks and consists of 7 modules. The participants are tested before and after the training and at 2 and 6 months follow-up to measure quality of life, well-being, perception of health and eating behavior.


Previous interventions:
The Think Slim Junior APP consists of two parts: (1) an app-based Ecological Momentary Intervention and (2) an app-based Cognitive Behavioral Therapy (CBT)-based intervention as blended care, as a personal coach on top of care as usual

(1) Ecological Momentary Assessment intervention (EMI) is a framework that combines real-time assessment (Ecological Momentary Assessment) with feedback. The app-based EMI provides feedback, based on algorithms, relying on a network-approach. It maps individual networks of variables (sleep quality, illness, emotions, craving, social circumstances, activity, location, eating behavior) via registrations in the APP and, on this basis, the EMI estimates when the adolescents are likely to overeat (‘risky’ moments) and intervenes at such moments via individualized feedback.

(2) The CBT-based intervention consists of 7 modules (eHealth, via the APP) with visualized exercises (to open at least twice a week) (automatic online reminders and compliments) on:
• psycho-education (1),
• motivational parts (internal and external reinforcers) (2),
• goalsetting + contracting (3),
• self observation and problem solving (4),
• self instructions and self efficacy, identifying negative thinking (5),
• emotion regulation and seeking support (6),
• combatting external eating via stimulus control (7),

(3) The CAU (care as usual) consists of:
• Psycho-education on food and physical activity
• Sessions on diet/healthy eating and healthy food habits
• Physical activity (4h a day)
• Parental involvement
• Protocols about psychological aspects: problem solving, social competencies and self-worth
• Individual sessions with a psychologist (every 2 weeks)

Participants are randomly allocated to receive either care as usual (control group) or the app-based Ecological Momentary Intervention and CBT-based intervention on top of care as usual (experimental group). Randomization is stratified on age and gender via sealed envelope.

The app-based intervention lasts 4 weeks and consists of 7 modules. The participants are tested before and after the training and at 3 months follow-up to measure quality of life, well-being, perception of health and eating behavior.
Intervention typeDevice
Pharmaceutical study type(s)
PhaseNot Applicable
Drug / device / biological / vaccine name(s)Smartphone app
Primary outcome measureCurrent primary outcome measure as of 14/10/2021:
BMI (kg/m²) as measured by:
1. Weight, measured at baseline, post (1 month), and follow-up (2 months and 6 months)
2. Height, measured at baseline, 1, 2, and 6 months


Previous primary outcome measure:
BMI (kg/m²) as measured by:
1. Weight, measured at baseline, post, and follow-up (3 months and 6 months)
2. Height, measured at baseline, post and follow-up (3 months and 6 months)
Secondary outcome measuresCurrent secondary outcome measures as of 14/10/2021:
Measured at baseline and posttest (1 month) unless noted otherwise:
1. Quality of life (Kidscreen) (10 items) (also measured at 2 and 6 months follow-up)
2. Wellbeing (Child Depression Inventory, CDI) (27 items) (also measured at 2 and 6 months follow-up)
3. Wellbeing: global self-worth (Competentie Belevingsschaal voor Adolescenten; CBSA) (35 items)
4. Perception of health (Just health Perception Questionnaire) (6 items)
5. Eating behavior (Dutch Eating Behavior Questionnaire, adolescent version) (33 items)
6. Eating behavior (Power of Food Scale) (15 items)
7. Eating behavior (Binge eating items of Children-Eating Disorder Examination Questionnaire (3 items)
8. Satisfaction with Think Slim Junior APP & intention to continue using the app (Usability Questionnaire) (17 items) (only measured at posttest)


Previous secondary outcome measures:
Measured at baseline and posttest (1 month) unless noted otherwise:
1. Quality of life (Kidscreen) (10 items) (also measured at 3 months and 6 months follow-up)
2. Wellbeing (Child Depression Inventory, CDI) (27 items) (also measured at 3 months and 6 months follow-up)
3. Wellbeing: global self-worth (Competentie Belevingsschaal voor Adolescenten; CBSA) (35 items)
4. Perception of health (Just health Perception Questionnaire) (6 items)
5. Eating behavior (Dutch Eating Behavior Questionnaire, adolescent version) (33 items)
6. Eating behavior (Power of Food Scale) (15 items)
7. Eating behavior (Binge eating items of Children-Eating Disorder Examination Questionnaire (3 items)
8. Satisfaction with Think Slim Junior APP & intention to continue using the app (Usability Questionnaire) (17 items) (only measured at posttest)
Overall study start date24/08/2021
Completion date31/08/2022

Eligibility

Participant type(s)Patient
Age groupChild
Lower age limit12 Years
Upper age limit16 Years
SexBoth
Target number of participants70 (to realize N=50 agreements for participating in the RCT)
Key inclusion criteriaAdolescents (12-16 years old) with obesity (>140% overweight).
Key exclusion criteria1. Comorbid medical disorders that cause (a part of) the weight gain (i.e. serious thyroid problems)
2. Youngsters with medical problems where obesity is secondary
Date of first enrolment15/10/2021
Date of final enrolment30/12/2021

Locations

Countries of recruitment

  • Belgium
  • France

Study participating centres

Medisch Pediatrisch Revalidatiecentrum Zeepreventorium
Koninklijke Baan 5
De Haan
8420
Belgium
SSR Nutrition Obesité UGECAM Tza Nou & Centre Medical Infantile Romagnat
230 Rue Vercingétorix
La Bourboule
63000
France

Sponsor information

Ghent University
University/education

Faculty of Psychology and Educational Sciences
Department of Developmental Personality and Social Psychology
Henri Dunantlaan 2
Ghent
9000
Belgium

Phone +32(0)9 2646416
Email Caroline.Braet@Ugent.be
Website https://www.ugent.be/en
ROR logo "ROR" https://ror.org/00cv9y106

Funders

Funder type

Government

Horizon 2020
Government organisation / National government
Alternative name(s)
EU Framework Programme for Research and Innovation, Horizon 2020 - Research and Innovation Framework Programme, European Union Framework Programme for Research and Innovation

Results and Publications

Intention to publish date15/01/2023
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot expected to be made available
Publication and dissemination planPlanned publication in a high-impact peer-reviewed journal.
IPD sharing planThe datasets generated during and/or analysed during the current study are not expected to be made available due to confidentiality.

Editorial Notes

14/10/2021: The following changes have been made:
1. The recruitment start date has been changed from 17/09/2021 to 15/10/2021.
2. The interventions have been updated
3. The primary outcome measure has been updated
4. The secondary outcome measures have been updated
5. The plain English summary has been updated to reflect the changes above.
14/10/2021: Trial's existence confirmed by EIT Health