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Behavioral Intervention

Mobile Health App + Coaching for Obesity

Waitlist Available
Led By Alaina Vidmar
Research Sponsored by Children's Hospital Los Angeles
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Be younger than 65 years old
Screening 3 weeks
Treatment Varies
Follow Up 6 and 18 months
Awards & highlights


This trial will address whether an addiction-based weight loss intervention, in the form of a smartphone app with telephone coaching, is more effective than an identical app-based intervention or a standard multidisciplinary clinic-based weight management program in reducing BMI in a diverse group of adolescents.

Who is the study for?
This trial is for adolescents aged 14-18 with obesity, defined as having a BMI at or above the 85th percentile for their age and gender. They must be able to read English and not be involved in other weight loss programs, have high blood pressure, or poorly controlled psychiatric illnesses.Check my eligibility
What is being tested?
The study tests an addiction-based mobile health (mHealth) weight-loss intervention using a smartphone app with coaching versus phone-coaching alone compared to traditional in-clinic treatment. It aims to see if managing overeating like an addiction can help teens lose weight more effectively.See study design
What are the potential side effects?
Since this trial involves non-medical interventions such as coaching and app usage, typical medical side effects are not expected. However, participants may experience psychological effects related to changes in eating habits and lifestyle adjustments.


Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~6 and 18 months
This trial's timeline: 3 weeks for screening, Varies for treatment, and 6 and 18 months for reporting.

Treatment Details

Study Objectives

Outcome measures can provide a clearer picture of what you can expect from a treatment.
Primary outcome measures
zBMI and %BMIp95
Secondary outcome measures
Adolescent Self Regulatory Inventory
Behavior Rating Inventory of Executive Function
Cost Analysis
+2 more

Trial Design

3Treatment groups
Experimental Treatment
Group I: ClinicExperimental Treatment1 Intervention
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
Group II: App Plus Coaching (AC)Experimental Treatment2 Interventions
6 month addiction model based weight loss intervention in the form of an iPhone app coupled with personalized coaching.
Group III: App Alone (AA)Experimental Treatment1 Intervention
6 month addiction model based weight loss intervention in the form of an iPhone app.
First Studied
Drug Approval Stage
How many patients have taken this drug
Completed Phase 3
Completed Phase 4

Find a Location

Who is running the clinical trial?

Cedars-Sinai Medical CenterOTHER
503 Previous Clinical Trials
165,712 Total Patients Enrolled
University of California, Los AngelesOTHER
1,541 Previous Clinical Trials
10,266,882 Total Patients Enrolled
Children's Hospital Los AngelesLead Sponsor
237 Previous Clinical Trials
5,076,989 Total Patients Enrolled

Media Library

App (Behavioral Intervention) Clinical Trial Eligibility Overview. Trial Name: NCT03500835 — N/A
Childhood Obesity Research Study Groups: Clinic, App Alone (AA), App Plus Coaching (AC)
App (Behavioral Intervention) 2023 Treatment Timeline for Medical Study. Trial Name: NCT03500835 — N/A
Childhood Obesity Clinical Trial 2023: App Highlights & Side Effects. Trial Name: NCT03500835 — N/A
Childhood Obesity Patient Testimony for trial: Trial Name: NCT03500835 — N/A
~25 spots leftby Jul 2025