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OverweighttrinkfitNCT00554294

Promoting Water Consumption for Prevention of Overweight in School Children in a Controlled Intervention Trial

A study testing environmental and behavioral change in people with Overweight, run by Research Institute of Child Nutrition, Dortmund.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

A major goal in public health is to find effective, feasible and simple programs for overweight prevention among children. This controlled intervention study evaluates a simple environmental and behavioral modification for its efficacy in preventing overweight of children in the school setting. Read more about this study

Who is it for?
Ages 7 to 9 yearsHealthy volunteers can take part
Conditions the study is for
Overweight
What is being tested?
environmental and behavioral change
Could I receive a placebo?
No, everyone receives an active treatment
How many people
2,950 participants
Where
No sites listed yet
Study dates
Apr 2006to Dec 2008
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 7 to 9 years
  • All sexes
  • Healthy volunteers accepted
  • Child

Who may be able to join

  • All children in 2nd and 3rd grade of selected elementary schools

Who cannot join

  • parental consent

About this study

A major goal in public health is to find effective, feasible and simple programs for overweight prevention among children. This controlled intervention study evaluates a simple environmental and behavioral modification for its efficacy in preventing overweight of children in the school setting. The intervention strategy focuses solely on the promotion of drinking tap water. The study was conducted in 32 elementary schools including about 3000 children in two German cities over 1 school year.

Read the detailed description

Soft drinks and other caloric beverages are supposed to be involved in the development of overweight and obesity in children. The intervention strategy of our study was to promote water consumption by facilitating access to tap water in schools assuming a concomitant decrease in caloric soft drinks at least at school. The environmental modification of installing a water dispenser at school and delivering a special bottle to each child in the intervention schools was supported by a few educational lessons. These lessons were held by the class teachers who received a prepared 6-hour curriculum dealing with the importance of water for the body and of water intake. For the study 17 randomly selected schools were assigned to the intervention group, 15 schools to the control group that did not receive any intervention. Body weight and height to calculate BMI as primary outcome were assessed at baseline and after the intervention period of 1 school year. As secondary outcome drinking and physical activity habits were evaluated at baseline and after the intervention. The water flow of the dispenser was measured at regular intervals. In addition, data of process evaluation was collected to measure acceptance and feasibility of the intervention in the school setting.

To analyze the efficacy of this primarily environmental and behavioral intervention, incidence and prevalence was compared between intervention and control group.

Conditions
Overweight
Being tested
environmental and behavioral change
Keywords
children, primary prevention, environmental change, behavioural change, school setting, changing of drinking habits, promotion of drinking tap water
Medical subject headings
Overweight

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • environmental and behavioral changeBehavioural

    In intervention schools a water dispenser was installed and children received water bottles as environmental intervention. Children also received a 6-hour-curriculum about the importance of water for the body that were held by the teachers.

Study groups in NCT00554294
Study groupRoleWhat they receive
Control groupNo interventionControl schools had school curriculum as usual and did not receive environmental intervention.
Intervention groupExperimentalIntervention schools received water dispensers, drinking bottles and lessons as intervention.
Receives: Behavioral: environmental and behavioral change

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Overweight

    Prevalence of overweight defined acording to the criteria of the International Obesity Task Force (IOTF)

    Measured: one school year

Secondary outcomes (4)
  1. Intake of Drinks

    Measured: one school year

  2. Physical Activity and Inactivity

    Measured: one school year

  3. Water Flow of the Water Dispensers

    Measured: one school year

  4. Parameters of Process Evaluation (Acceptance, Feasibility)

    Measured: 1,5 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted6 Nov 2007 (estimated)
  2. Study startApr 2006
  3. Primary completionJun 2007
  4. Study completionDec 2008

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
2,950 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00554294
Sponsor's protocol ID
05HS026
Acronym
trinkfit
Status last verified
May 2009
First submitted
5 Nov 2007
Last updated
16 Jul 2009

Publications

  • Muckelbauer R, Libuda L, Clausen K, Toschke AM, Reinehr T, Kersting M. Promotion and provision of drinking water in schools for overweight prevention: randomized, controlled cluster trial. Pediatrics. 2009 Apr;123(4):e661-7. doi: 10.1542/peds.2008-2186.

    PubMed 19336356
  • Muckelbauer R, Libuda L, Clausen K, Toschke AM, Reinehr T, Kersting M. Immigrational background affects the effectiveness of a school-based overweight prevention program promoting water consumption. Obesity (Silver Spring). 2010 Mar;18(3):528-34. doi: 10.1038/oby.2009.270. Epub 2009 Aug 27.

    PubMed 19713953

Questions about this trial

What is this clinical trial studying?

A study testing environmental and behavioral change in people with Overweight, run by Research Institute of Child Nutrition, Dortmund.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 16 Jul 2009. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 16 Jul 2009). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Overweight (time frame: one school year). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00554294, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Jul 2009.

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