Condition category
Nutritional, Metabolic, Endocrine
Date applied
Date assigned
Last edited
Retrospectively registered
Overall trial status
Recruitment status
No longer recruiting
Publication status
Results overdue

Plain English Summary

Not provided at time of registration

Trial website

Contact information



Primary contact

Dr Mieke Houdijk


Contact details

Sportlaan 600
the Hague
2566 JM

Additional identifiers

EudraCT number number

Protocol/serial number


Study information

Scientific title

A randomised controlled trial evaluating the effect of family-based multidisciplinary cognitive behavioural treatment in children with obesity


Haagse Maatjes

Study hypothesis

During the last three decades the prevalence of childhood obesity has increased dramatically in western countries, including the Netherlands. The rapidly increasing prevalence of childhood obesity seen during the last few decades, is mostly the result of an increased food consumption and a change from a more physically active lifestyle to a more sedentary one. The consequence of the increased prevalence of childhood obesity is the earlier appearance of co-morbidities.

The primary aim of this study is the effect evaluation of a family-based multidisciplinary cognitive behavioural treatment on obesity (expressed as body mass index [BMI]-standard deviation score [SDS]) compared to standard care (advice on increased physical activity and dietary changes) in children with obesity. The secondary aim of the study was to investigate the effect of this treatment on changes in waist circumference, insulin sensitivity, inflammation, secretion of gastrointestinal hormones and changes in physical fitness and quality of life, compared to standard care. Furthermore, we aimed at assessing the long-term effects and possible predictive factors for response treatment.

Ethics approval

The Dutch National Medical Ethical Committee approved on the 13th of February 2007 (ref: METC-nr. 06-091)

Study design

Longitudinal single centre single blind randomised clinical trial, with stratification for gender and ethnicity

Primary study design


Secondary study design


Trial setting


Trial type


Patient information sheet

Not available in web format, please use contact details below to request a patient information sheet


Childhood obesity


The cognitive behaviour treatment program takes two years, with an intensive phase of three monthsat the beginning, followed by booster sessions. In the screening phase the children with their parents were seen at two separate occasions individually by a dietitian, a child-physiotherapist, a child-psychologist and a social worker. In this way individual family situations which could interfere with the treatment are evaluated and expectations of the program are checked. During the intensive phase of the program the experimental group is offered 7 group meetings of 2 1/2 hours and the parents are offered 5 separate parent meetings and 1 meeting together with the children. The control group is given an initial physical activity and nutritional advice. The control group is offered to participate in the treatment after 12 months. The normal weight control group is measured only once. A person blinded for the study design measures weight and height at baseline.

Intervention type



Not Applicable

Drug names

Primary outcome measure

Do children (8-17 yr.) with obesity show a significant decrease (> 0.5 BMI-SDS) in BMI (as defined by Cole et al.[2]) after 3 months of intensive treatment compared to children who were given advice on increased physical activity and dietary changes?

Secondary outcome measures

1. Do children with obesity have a significantly more beneficial effect of 3 months intensive treatment compared to standard care on changes in waist circumference, insulin sensitivity, secretion of gastrointestinal hormones, cardiovascular fitness and quality of life?
2. Will the hypothesized beneficial effects of 3 months intensive treatment in children with obesity persist after 12 and 24 months of follow-up?
3. Are the genetic background of the children, the level of parental education, the social economic status or the ethnicity predictive variables for the degree of obesity in these children, and for the success of treatment?

Overall trial start date


Overall trial end date


Reason abandoned (if study stopped)


Participant inclusion criteria

1. Age 8-17 years (at baseline)
2. Obesity based on BMI values defined by Cole et al.
3. Children/ adolescents presented to the paediatrician
4. Written informed consent from parents and children

Participant type


Age group




Target number of participants

35 per group, 70 in total

Participant exclusion criteria

1. Insufficient knowledge/understanding of the Dutch language
2. Children/adolescents following special education
3. Serious co-morbidity
4. Obesity caused by a syndrome (like Prader Willi, Laurence-Moon-Biedl)
5. Endocrine cause of obesity (like hypothyreoidy, Cushing)
6. Obesity caused by medication (like high dose of glucocorticoids)
7. Parents and children/adolescents not willing to invest 40 hours in the treatment
8. Children/adolescents with diabetes mellitus
9. Children/adolescents who already followed a multidisciplinary treatment, including psychological treatment and intensive parent involvement

Recruitment start date


Recruitment end date



Countries of recruitment


Trial participating centre

Sportlaan 600
the Hague
2566 JM

Sponsor information


Haga Teaching Hospital (HagaZiekenhuis) (Netherlands)

Sponsor details

c/o E.C.A.M. Houdijk
Sportlaan 600
the Hague
2566 JM

Sponsor type

Hospital/treatment centre



Funder type

Hospital/treatment centre

Funder name

Juliana Children's Hospital, HagaHospital (Netherlands) - unrestricted educational grand

Alternative name(s)

Funding Body Type

Funding Body Subtype


Results and Publications

Publication and dissemination plan

Not provided at time of registration

Intention to publish date

Participant level data

Not provided at time of registration

Basic results (scientific)

Publication list

2011 protocol in

Publication citations

  1. Protocol

    Vos RC, Wit JM, Pijl H, Kruyff CC, Houdijk EC, The effect of family-based multidisciplinary cognitive behavioral treatment in children with obesity: study protocol for a randomized controlled trial., Trials, 2011, 12, 110, doi: 10.1186/1745-6215-12-110.

Additional files

Editorial Notes