NCT03500835

Brief Summary

The proposed multi-site randomized control trial (RCT) will test the effectiveness of an addiction-based weight loss intervention, embodied first as a smartphone app with telephone coaching and second as an identical approach phone-coaching alone intervention compared to age matched controls participating in an in-clinic weight management interventions in a larger sample of economically, racially and ethnically diverse adolescents (ages 14-18). One hundred and eighty adolescents will be recruited from pediatric interdisciplinary weight management clinics operating out of five different hospital systems in Southern California and through targeted mailing to 40 ethnically, racially and economically diverse neighborhoods in Los Angeles County. The adolescents will be randomized 1:1 via stratified block randomization to either receive 1) interactive addiction model based mobile health (mHealth) weight-loss intervention with personalized phone-coaching (AppCoach), 2) interactive addiction model based mHealth weight-loss intervention alone (App) or 3) Multidisciplinary in-clinic weight management program (Clinic). Assessment of the intervention's effect on zBMI and percent over the 95th percentile (%BMIp95), fasting metabolic parameters, addictive eating habits, executive function, and motivation for change will be obtained at enrollment, 3, 6, 12 and 18 months (1 year post intervention follow up).

Trial Health

87
On Track

Trial Health Score

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

Enrollment
161

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jan 2019

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

April 10, 2018

Completed
8 days until next milestone

First Posted

Study publicly available on registry

April 18, 2018

Completed
9 months until next milestone

Study Start

First participant enrolled

January 1, 2019

Completed
3.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2022

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 19, 2023

Completed
12 months until next milestone

Results Posted

Study results publicly available

December 6, 2024

Completed
Last Updated

December 6, 2024

Status Verified

October 1, 2024

Enrollment Period

3.9 years

First QC Date

April 10, 2018

Results QC Date

January 26, 2023

Last Update Submit

October 19, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • %BMIp95

    Mean change in excess BMI percent over the 95th percentile (%BMIp95) over the study period compared at 6 months to baseline. value at 6 months minus value at baseline

    6 months

Secondary Outcomes (2)

  • Cost Analysis

    6 months

  • Yale Food Addiction Scale

    6 months

Study Arms (3)

App Plus Coaching (AC)

EXPERIMENTAL

6 month addiction model based weight loss intervention in the form of an iPhone app coupled with personalized coaching.

Behavioral: AppBehavioral: Coaching

App Alone (AA)

EXPERIMENTAL

6 month addiction model based weight loss intervention in the form of an iPhone app.

Behavioral: App

Clinic

EXPERIMENTAL

In-Clinic Multi-disciplinary monthly weight management program. Curriculum adapted from the KidsNFitness Program and administered by an MD, RD, Psychologist and Health Educator over 90 minute sessions

Behavioral: Clinic: Modified KidsNFitness

Interventions

AppBEHAVIORAL

1. 6 month app intervention: Problem Food Withdrawal, Snacking Elimination and Food Amount Reduction 2. Daily Weigh In 3. App based reminders 4. Follow Up: Face-to-face clinic visits at 3,6,12 and 18 months.

App Alone (AA)App Plus Coaching (AC)
CoachingBEHAVIORAL

1. 6 month addiction based intervention: Problem Food Withdrawal, Snacking Elimination and Food Amount Reduction. 2. Daily Weighing 3. Daily Text messages from Coach 4. Weekly 15 minute phone meetings with Coach 5. Follow Up: Face-to-face clinic visits at 3,6,12 and 18 months post consent

App Plus Coaching (AC)

1. 6 month in-clinic, evidence-based, multi-disciplinary intervention 2. 90 minute sessions, in clinic that occur every month for 6 months 3. Follow Up: Face-to-face clinic visits Monthly x 6 months followed by face-to-face visit at12 and 18 months.

Clinic

Eligibility Criteria

Age14 Years - 18 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Age 14-18 years
  • Body mass index \[BMI\] ≥85th percentile for age and gender

You may not qualify if:

  • Concurrent participation in an alternative weight loss intervention
  • Blood pressure \> 99th percentile for age, gender, and height
  • Known poorly controlled psychiatric illness and/or developmental delay
  • Participants Inability to read English

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Children's Hospital of Los Angeles

Los Angeles, California, 90027, United States

Location

Related Publications (9)

  • Pretlow RA, Stock CM, Allison S, Roeger L. Treatment of child/adolescent obesity using the addiction model: a smartphone app pilot study. Child Obes. 2015 Jun;11(3):248-59. doi: 10.1089/chi.2014.0124. Epub 2015 Mar 11.

    PMID: 25760813BACKGROUND
  • Tompkins CL, Laurent J, Brock DW. Food Addiction: A Barrier for Effective Weight Management for Obese Adolescents. Child Obes. 2017 Dec;13(6):462-469. doi: 10.1089/chi.2017.0003. Epub 2017 Jul 20.

    PMID: 28727935BACKGROUND
  • Majeed-Ariss R, Baildam E, Campbell M, Chieng A, Fallon D, Hall A, McDonagh JE, Stones SR, Thomson W, Swallow V. Apps and Adolescents: A Systematic Review of Adolescents' Use of Mobile Phone and Tablet Apps That Support Personal Management of Their Chronic or Long-Term Physical Conditions. J Med Internet Res. 2015 Dec 23;17(12):e287. doi: 10.2196/jmir.5043.

    PMID: 26701961BACKGROUND
  • Schulte EM, Gearhardt AN. Development of the Modified Yale Food Addiction Scale Version 2.0. Eur Eat Disord Rev. 2017 Jul;25(4):302-308. doi: 10.1002/erv.2515. Epub 2017 Mar 29.

    PMID: 28370722BACKGROUND
  • Metzendorf MI, Wieland LS, Richter B. Mobile health (m-health) smartphone interventions for adolescents and adults with overweight or obesity. Cochrane Database Syst Rev. 2024 Feb 20;2(2):CD013591. doi: 10.1002/14651858.CD013591.pub2.

  • Pretlow R, Glasner S. Reconceptualization of eating addiction and obesity as displacement behavior and a possible treatment. Eat Weight Disord. 2022 Oct;27(7):2897-2903. doi: 10.1007/s40519-022-01427-1. Epub 2022 Jun 22.

  • Vidmar AP, Yamashita N, Fox DS, Hegedus E, Wee CP, Salvy SJ. Can a Behavioral Weight-Loss Intervention Change Adolescents' Food Addiction Severity? Child Obes. 2022 Apr;18(3):206-212. doi: 10.1089/chi.2021.0271. Epub 2022 Jan 7.

  • Lopez KE, Salvy SJ, Fink C, Werner J, Wee CP, Hegedus E, Gonzalez J, Fox DS, Vidmar AP. Executive Functioning, Depressive Symptoms, and Intervention Engagement in a Sample of Adolescents Enrolled in a Weight Management Program. Child Obes. 2021 Jun;17(4):281-290. doi: 10.1089/chi.2020.0334. Epub 2021 Apr 7.

  • Vidmar AP, Salvy SJ, Pretlow R, Mittelman SD, Wee CP, Fink C, Steven Fox D, Raymond JK. An addiction-based mobile health weight loss intervention: protocol of a randomized controlled trial. Contemp Clin Trials. 2019 Mar;78:11-19. doi: 10.1016/j.cct.2019.01.008. Epub 2019 Jan 14.

MeSH Terms

Conditions

Pediatric ObesityBehavior, Addictive

Interventions

Amyloid

Condition Hierarchy (Ancestors)

ObesityOverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsCompulsive BehaviorImpulsive BehaviorBehavior

Intervention Hierarchy (Ancestors)

Multiprotein ComplexesMacromolecular SubstancesProteinsAmino Acids, Peptides, and Proteins

Results Point of Contact

Title
Alaina Vidmar
Organization
Children's Hospital Los Angeles

Study Officials

  • Alaina Vidmar

    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
OUTCOMES ASSESSOR
Masking Details
Blocked randomization will be utilized, to ensure the groups are balanced in terms of number of subjects and the distribution of potential confounding variables. Blocked randomization will be used to ensure the number of eligible subjects assigned to each group is equally distributed. Block size will be blinded from the primary investigator performing the study.
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Model Details: The proposed multi-site randomized control trial (RCT) will test the effectiveness of an addiction-based weight loss intervention, embodied as a smartphone app with telephone coaching compared 1) an addiction-based weight loss intervention alone and 2) an in-clinic weight management intervention based on a traffic-light based approach in a larger sample of economically, racially and ethnically diverse adolescents (ages 14-18).
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor Department of Pediatric Endocrinology

Study Record Dates

First Submitted

April 10, 2018

First Posted

April 18, 2018

Study Start

January 1, 2019

Primary Completion

December 1, 2022

Study Completion

December 19, 2023

Last Updated

December 6, 2024

Results First Posted

December 6, 2024

Record last verified: 2024-10

Data Sharing

IPD Sharing
Will not share

Locations