NCT05530538

Brief Summary

Childhood obesity within the United States has been a growing concern over the past number of years, and if not addressed, leads to detrimental health outcomes for youth as they move into adulthood. The literature suggests that over-eating, especially when framed in terms of food addiction, plays a key role in this epidemic; however, treatment options are time intensive, posing a profound logistical barrier for both the child and parent and often limits or prevents engagement. As research within the field of mHealth has grown, technology-based interventions have gained traction, specifically interactive smartphone applications (apps). Displacement theory, although not new, has been understudied yet provides a strong explanation and treatment plan for addictive type behaviors. The core of this theory posits that problems which one feels they cannot face nor avoid leads to repetitive and irrepressible behaviors; however, if a healthy coping behavior can be learned and utilized, then the unhealthy behavior will cease. The theory lends itself well to being adapted into an mHealth format, making it more easily accessible and more widely used. Grounded in displacement theory, the proposed study aims to develop an app-based weight loss intervention for adolescents with obesity. Information gained regarding the feasibility and acceptability of such an intervention can potentially be replicated and applied to other populations with various addictive behaviors. Helping those with addictive behaviors in a format that has little to no logistical barriers can have a substantial impact on public health. A novel smartphone app will be designed by key stakeholders and refined through the course of the study. 38 total adolescents (14-21 years old) with %BMIp85 will be recruited via various sources (e.g., clinic referrals, flyers, social media advertising) to participate in one of two stages of the study: the beta testing stage or the trial stage. Beta testing will enroll one group of eight teens to test the app for three weeks; participants will be assessed in-person pre- and post-intervention. After each group, the app will be modified to incorporate their feedback in order to promote youth engagement. The trial stage will enroll 30 adolescents to participate in a four-month intervention; participants will complete three assessments, baseline, post-intervention (both in-person) and one-month post-intervention (either in-person or virtually). The study will examine engagement and satisfaction with the app, as well as the intervention's impact on clinical outcome measures (weight and BMI, diet and snacking, and addictive behaviors related to food and substance use) and potential mediators/moderators (motivation for change, perceived stress, and distress tolerance).

Trial Health

77
On Track

Trial Health Score

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

Enrollment
38

participants targeted

Target at P25-P50 for not_applicable

Timeline
14mo left

Started Nov 2023

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

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

Study Progress69%
Nov 2023Jul 2027

First Submitted

Initial submission to the registry

August 25, 2022

Completed
13 days until next milestone

First Posted

Study publicly available on registry

September 7, 2022

Completed
1.2 years until next milestone

Study Start

First participant enrolled

November 1, 2023

Completed
3.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2026

Expected
7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2027

Last Updated

December 22, 2025

Status Verified

April 1, 2025

Enrollment Period

3.1 years

First QC Date

August 25, 2022

Last Update Submit

December 15, 2025

Conditions

Keywords

Weight LossAdolescentsSmartphone AppObesityOverweight

Outcome Measures

Primary Outcomes (3)

  • Quantity of Engagement with App

    Daily engagement as measured by minutes per day each participant spent in the app

    4 months

  • Satisfaction with the App as assessed by the Treatment Satisfaction Questionnaire

    The TSQ (Cox, Fergus \& Swinson, 1994) will be modified and used for this study to provide a quantitative assessment of participant satisfaction with the BrainWeighve app. The measure contains a nine item Likert-scale asking the participant to rate how satisfied they were with the app overall, its ease or difficulty of use, how satisfied they were with the impact the app had on their behaviors and weight loss, and if they would be likely to continue using it outside of a research study.

    4 months

  • Quality of Engagement with App

    Number of items participant enters over the intervention period for their Dread List and Action Plans

    4 months

Secondary Outcomes (10)

  • %BMI95

    5 months

  • Automated Self-Administered 24-Hour Dietary Assessment Tool

    5 months

  • Substance Use as measured by the NIDA Risk Assessment

    5 months

  • Perceived Stress Scale

    5 months

  • Distress Tolerance Scale

    5 months

  • +5 more secondary outcomes

Other Outcomes (1)

  • Reach and Retention Rates

    4 months

Study Arms (1)

BrainWeighve Intervention

EXPERIMENTAL

4-month smartphone-based weight loss intervention for teens based on displacement theory of addictive behaviors

Behavioral: BrainWeighve App

Interventions

38 total adolescents (14-21 years old) with %BMIp85 will be recruited via various sources (e.g., clinic referrals, flyers, social media advertising) to participate in one of two stages of the study: the beta testing stage or the trial stage. Beta testing will enroll a group of eight teens to test the app for three weeks; participants will be assessed pre- and post-intervention. The app will be modified to incorporate their feedback in order to promote youth engagement. The trial stage will enroll 30 adolescents to participate in a four-month intervention; participants will complete three assessments, baseline, post-intervention (both in-person) and one-month post-intervention (either in-person or virtually).

BrainWeighve Intervention

Eligibility Criteria

Age14 Years - 21 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • years old
  • Has an iPhone or are willing to use a study iPhone
  • Ability to read and speak English
  • Endorsement of one of the three items listed below on the five-item S-weight questionnaire indicating motivation for change During the last year I haven't done anything to lose weight but I'm planning to do something over the next 30 days.
  • I've been making an effort to lose weight (by dieting1 and/or exercising2) for less than 6 months.
  • I've been making an effort to maintain my weight (by dieting1 and/or exercising2) for more than 6 months.
  • \. Body mass index \[BMI\] ≥85th percentile for age and gender

You may not qualify if:

  • Any psychiatric condition and/or developmental delay which would require immediate or ongoing treatment that would make study participation difficult or harmful
  • Parent/guardian-reported physical, mental of other inability to provide consent or refusal to provide consent for minor children
  • Self-reported diagnosis of Prader-Willi Syndrome, brain tumor, hypothalamic obesity, or other diagnosis associated with obesity
  • Concurrent participation in an alternative weight loss intervention

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

UCLA Marion Davies Children's Center

Los Angeles, California, 90025, United States

RECRUITING

MeSH Terms

Conditions

Weight LossObesityOverweight

Condition Hierarchy (Ancestors)

Body Weight ChangesBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsOvernutritionNutrition DisordersNutritional and Metabolic Diseases

Study Officials

  • Vibha Singhal, MD, MBBS, MPH

    University of California, Los Angeles

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

August 25, 2022

First Posted

September 7, 2022

Study Start

November 1, 2023

Primary Completion (Estimated)

December 1, 2026

Study Completion (Estimated)

July 1, 2027

Last Updated

December 22, 2025

Record last verified: 2025-04

Locations