NCT06185413: Child-COOP

Children's Cooperation Denmark: a 3-year System Dynamics Trial

Active, enrolled NA Last updated 29 January 2025

What this trial tests

NA trial testing Participatory system dynamics approach in Child Health in 3,000 participants. Participants enrolled and being followed up; not accepting new ones.

Timeline

13 September 2023

Primary endpoint
31 December 2026

31 December 2027

Quick facts

Lead sponsor	Aarhus University Hospital
Phase	NA
Status	Active, enrolled
Study type	INTERVENTIONAL
Allocation	non randomized
Design	sequential
Masking	none
Primary purpose	prevention
Enrollment	3,000
Start date	13 September 2023
Primary completion	31 December 2026
Estimated completion	31 December 2027
Sites	5 locations across Denmark

Drugs / interventions tested

• Participatory system dynamics approach

Conditions studied

• Child Health — all drugs for Child Health →
• Child Behavior — all drugs for Child Behavior →
• Physical Inactivity — all drugs for Physical Inactivity →
• Child Obesity — all drugs for Child Obesity →

Sponsor

Aarhus University Hospital

Who can join

Adults 6 to 12, any sex, with Child Health or Child Behavior. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

Lack of physical activity (PA) and sedentary lifestyle in Danish children is a major challenge. New strategies are needed to combat this development. Early awareness is important, as PA behaviour in childhood often is manifested across adolescence and into adulthood. The three-year Child-COOP trial aims to explore if a participatory system dynamics approach can promote (increase and sustain) healthy PA behaviour in schoolchildren aged 6-12 years through changes at the local system level. The five Danish municipalities will each participate with an intervention community and a comparison community. First, local health profiles of children will be collected and used to engage key leaders and stakeholders from intervention communities and municipal administrations in participatory processes. These will be used to develop a systems map of drivers of PA behaviour in schoolchildren aged 6-12 years in the local communities. Second, based on the systems map, stakeholders from the civic and private sectors will be involved in developing and implementing actions to promote healthy PA behaviour through system changes. The trial will be evaluated in a pre-post design to compare intervention effects between the communities and identify outcomes at individual level and systems level. A process evaluation will be made to map the activities in a final systems program theory on "what works for whom under what circumstances". Results will be used in future recommendations and to assess the potential for upscaling to national level. Child-COOP will be based on a collaboration between the five Danish municipalities, the Steno Diabetes Centres in Aarhus, Copenhagen and Zealand, Aarhus University and Deakin University, Australia. Centre for Health Promotion in Practice, Local Government Denmark (KL) and the Danish Healthy Cities Network (Sund By Netværket) will contribute with feedback on project progress and dissemination of project results.

Publications & conference data

1 peer-reviewed publication reference this trial (live from Europe PMC):

1. Children's COOPeration Denmark (Child-COOP): A 3-year systems trial targeting physical activity behaviour in children – design and baseline characteristics
   Kirkegaard H, Petersen TL, Klinker CD, Ryom K, et al · · 2026 · DOI 10.21203/rs.3.rs-8788799/v1