NCT04516252

Brief Summary

Dog ownership can serve as a vehicle for large-scale multi-level public health interventions, especially for pediatric overweight and obesity, due to dogs' unique place in children and adolescents' social networks.This study develops and tests a novel approach to design a Canine Health-Literacy module to enhance a Comprehensive Family Lifestyle Intervention BodyWorks, for dog-owning adolescents who have been diagnosed with overweight or obesity, and their parents. The results are anticipated to make an important step towards addressing the overweight and obesity epidemic among both people and companion dogs in the U.S.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
202

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Feb 2021

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 31, 2020

Completed
18 days until next milestone

First Posted

Study publicly available on registry

August 18, 2020

Completed
6 months until next milestone

Study Start

First participant enrolled

February 27, 2021

Completed
3.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 13, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 13, 2025

Completed
1.5 years until next milestone

Results Posted

Study results publicly available

July 1, 2026

Completed
Last Updated

July 1, 2026

Status Verified

June 1, 2026

Enrollment Period

3.9 years

First QC Date

July 31, 2020

Results QC Date

January 7, 2026

Last Update Submit

June 5, 2026

Conditions

Keywords

OverweightObesitychildrenadolescentscomprehensive family lifestyle intervention programtelehealthBodyWorksHuman Animal Interaction

Outcome Measures

Primary Outcomes (7)

  • Change in Mean Physical Activity Associated With the BodyWorks + Canine Health Literacy Intervention for Parents and Adolescents

    Determine the mean of the average of the first 7 days (with valid data \>100 steps) and the last 7 days of the intervention for intervention and control groups as measured by the physical activity trackers.

    Baseline to 7 weeks

  • Change From Baseline for Adolescent Affect Variability Associated With the BodyWorks + Canine Health Literacy Intervention.

    Determining the mean difference between the groups in the positive and negative affect ecological momentary assessment outcomes.

    Baseline to 7 weeks

  • Mean Number of Questions Answered for Adolescent Feasibility of Ecological Momentary Assessment

    Feasibility will be determined by data completeness: Percentage of survey questions answered out of 13 possible questions.

    Baseline to week 7

  • Number of Adolescents That Responded to Physical Acceptability of Ecological Momentary Assessment

    Acceptability will be measured by EMA prompt on physical activity with dog.

    Week 7 of intervention

  • Number of Parents and Adolescents Feasibility of Use of Physical Activity Trackers.

    Feasibility will be determined by data completeness: Number of adolescents and parents with meaningful data (greater than 100 steps \>=7 days) out of participants with fitbit data.

    Baseline to 7 weeks

  • Mean Score of Parents and Adolescents Acceptability of Use of Physical Activity Trackers Using Likert Scale.

    Acceptability will be measured by response rate on user satisfaction survey. Likert Scale -2 (strongly disagree) to 2 (strongly agree). Higher values represent higher satisfaction.

    Week 7 of intervention

  • Mean Physical Activity for Parent and Adolescent Out of Participants With Fitbit Data.

    Number of steps per day

    Baseline to 7 weeks

Secondary Outcomes (1)

  • Change in Body Mass Index From Baseline for Adolescent

    Baseline to 7 weeks

Study Arms (2)

Intervention

EXPERIMENTAL

Half of the BodyWorks families will be randomized to the intervention group, and will receive a PAT for the children, the parents, and the dogs at the beginning of the cycle; the children will respond to EMA surveys using a cell phone; the children and the parents will receive the Canine health literacy module in addition to the BW curriculum.

Behavioral: BodyWorks InterventionBehavioral: Canine CurriculumBehavioral: Ecological Momentary AssessmentBehavioral: Physical Activity Trackers

Control

ACTIVE COMPARATOR

Half of the BodyWorks participants will be randomized to the control group and will receive a PAT at the beginning of the cycle for the children, the parents, and the dogs, and the children will respond to EMA surveys using cell phones.

Behavioral: BodyWorks InterventionBehavioral: Ecological Momentary AssessmentBehavioral: Physical Activity Trackers

Interventions

BodyWorks (BW), a Comprehensive Behavioral Family Lifestyle Interventions (CBFLI), a national, empirically validated, curriculum-based 7-week program will be implemented (Borden et al., 2012; DHHS, 2013)

ControlIntervention

Using our team's expertise in veterinary medicine, human-animal interaction, and animal behavior modification, develop an empirically-based, 7-week module on canine health and behavior.

Intervention

Ecological Momentary Assessments (EMA) of physical activity will be conducted using mobile phones for 7 weeks of the BW program, prospectively collecting data on 4 days per week (Saturday to Tuesday) (Dunton et al., 2011; Liao et al., 2016).

ControlIntervention

Three types of consumer-grade wireless personal activity trackers (PATs): FitBit Inspire® designed for children 8 years of age and older; FitBit Inspire® for adults (Diaz et al., 2015; Espinoza et al., 2017); and FitBark®, wireless, global positioning systems (GPS)-based personal activity trackers for dogs (Patel et al., 2017). This approach will allow us to evaluate quantity (number of steps) and intensity of physical activity in the adolescents, their parents, and their dogs, as well as to synchronize Fitbit Ace and FitBark to establish the amount of shared physical activity of adolescents and their dogs.

ControlIntervention

Eligibility Criteria

Age9 Years - 17 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Overweight/obese youth ages 9-17 years and their caregivers
  • Own dog

You may not qualify if:

  • Normal BMI
  • Do not own dog

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

AltaMed@CHLA

Los Angeles, California, 90057, United States

Location

MeSH Terms

Conditions

OverweightObesityHuman-Animal Interaction

Interventions

Ecological Momentary AssessmentFitness Trackers

Condition Hierarchy (Ancestors)

OvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsBehavior

Intervention Hierarchy (Ancestors)

Psychological TestsBehavioral Disciplines and ActivitiesDiagnostic EquipmentEquipment and SuppliesWearable Electronic DevicesElectrical Equipment and Supplies

Limitations and Caveats

A significant portion of the study occurred during the COVID-19 pandemic, which led to recruitment challenges and difficulties promoting physical activity during lockdowns. The study was transitioned from in-person to virtual, requiring children to participate remotely.

Results Point of Contact

Title
Dr. Larry Yin
Organization
Children's Hospital Los Angeles; USC Keck School of Medicine

Study Officials

  • Larry Yin, MD, MSPH

    Children's Hospital Los Angeles

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor of Clinical Pediatrics

Study Record Dates

First Submitted

July 31, 2020

First Posted

August 18, 2020

Study Start

February 27, 2021

Primary Completion

January 13, 2025

Study Completion

January 13, 2025

Last Updated

July 1, 2026

Results First Posted

July 1, 2026

Record last verified: 2026-06

Data Sharing

IPD Sharing
Will not share

Locations