Community Outreach - Obesity Prevention Trial (CO-OPT)
CO-OPT
Center for Research in Implementation Science and Prevention (CRISP) - Community Outreach - Obesity Prevention Trial (CO-OPT)
1 other identifier
interventional
300
1 country
1
Brief Summary
The purpose of this research is to investigate the effectiveness of a community health worker-based program as an adjunct to clinical services regarding childhood obesity management. This family-centered program will be delivered in the community and homes of enrolled families. The primary outcome will compare change in age-gender specific body-mass-index (BMI) z-score (zBMI) over time. All Denver Health children and families will be enrolled at study inception and receive the intervention in 1 of 5 defined 6-month stepped wedge engagements. The intervention lasts for 6 months and the time prior to engagement in the intervention will serve as the control period. Intervention construct validity will be evaluated using data on diet, activity, and fitness. The primary goal is to examine the effect of the intervention in reducing the zBMI in the index patient and secondarily on any participating family members. We will test effectiveness among demographic groups under-represented in prior studies, including very young children and Latinos. Results from this study will inform future intervention modifications and permit effect size estimation and power calculations for future randomized trials that include a community health worker-based obesity prevention and treatment program. During the course of the study, an obesity registry will be designed and implemented within an integrated safety-net healthcare system to measure primary obesity outcomes in a low-income population and conduct analyses. The community health worker will be using several new technologies (e.g., text messaging and patient relationship manager \[PRM\]) as an adjunct when working with an obese child and his/her family. Targeted training for clients, providers and CHW will be part of the prevention strategies implemented during the grant period, these will include motivational interviewing. All of these (i.e., obesity registry, technologies and training) will have an evaluative component.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable obesity
Started Mar 2012
Longer than P75 for not_applicable obesity
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
March 1, 2012
CompletedFirst Submitted
Initial submission to the registry
December 21, 2013
CompletedFirst Posted
Study publicly available on registry
December 31, 2013
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 1, 2017
CompletedStudy Completion
Last participant's last visit for all outcomes
October 1, 2017
CompletedNovember 25, 2025
April 1, 2022
5.6 years
December 21, 2013
November 20, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Change in BMI z-score
BMI z-score will be calculated for each child at the indicated times
Baseline, post intervention, 6 months post intervention
Study Arms (1)
patient navigation
EXPERIMENTALPatient navigator visits home to encourage health eating, active living and parental skill building
Interventions
16 session (25 hour) home-based intervention with patient navigators encouraging families to adopt healthy eating, active living and parental skill building
Eligibility Criteria
You may qualify if:
- years old with a BMI above the 85 %ile
You may not qualify if:
- non-English and non-Spanish speaking, any chronic conditions
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Denver Health
Denver, Colorado, 80204, United States
Related Publications (1)
Yun L, Boles RE, Haemer MA, Knierim S, Dickinson LM, Mancinas H, Hambidge SJ, Davidson AJ. A randomized, home-based, childhood obesity intervention delivered by patient navigators. BMC Public Health. 2015 May 23;15:506. doi: 10.1186/s12889-015-1833-z.
PMID: 26002612DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Arthur Davidson, MD, MSPH
Denver Health
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Director, Public Health Informatics and Epidemiiology
Study Record Dates
First Submitted
December 21, 2013
First Posted
December 31, 2013
Study Start
March 1, 2012
Primary Completion
October 1, 2017
Study Completion
October 1, 2017
Last Updated
November 25, 2025
Record last verified: 2022-04
Data Sharing
- IPD Sharing
- Will not share