Preventing Obesity in Military Communities-Adolescents (POMC-A)

To determine whether reducing loss of control eating (LOC) with Interpersonal Psychotherapy-Weight Gain (IPT-WG) will be effective for adolescent military-dependents who report such behavior. The investigators will examine whether IPT-WG influences body weight gain trajectories and prevents worsening disordered eating, psychosocial problems, and metabolic functioning among military dependents at heightened risk for adult obesity and disordered eating. This study will provide key efficacy data for a new promising obesity prevention program for youth from military families.

Study Overview

Detailed Description

The prevalence of overweight among military personnel and their dependents is at a rate similar to that of the civilian population. Nearly 30% of adolescent dependents are overweight, including approximately 15-17% who are obese, placing them at high risk for impairments in metabolic functioning, type 2 diabetes, and adult obesity. Youth who are overweight (body mass index, kg/m2, BMI ≥ 85th percentile) are at high risk for excess weight gain as they grow. Since effective weight loss and maintenance treatments are rare, prevention may be the most important approach to reducing the high prevalence of obesity. To date, most pediatric obesity prevention programs have been met with limited success. To address those at greatest risk for obesity, more targeted approaches may be required. There is a need to reduce prospectively identified risk factors in order to prevent excess weight gain in youth at high risk for adult obesity. The most common disordered eating behavior among overweight adolescents is loss of control (LOC) eating, during which the feeling of being unable to stop eating is experienced. LOC eating predisposes youth to gain excessive weight and fat. Thus, LOC eating is likely to be an important contributor to obesity in susceptible individuals. Decreasing LOC in adolescents may prevent excess weight gain. Investigators at the Uniformed Services University of the Health Sciences (USUHS) is in partnership with Ft. Belvoir Community Hospital (FBCH) and Walter Reed National Military Medical Center (WRNMMC) to test the effectiveness of IPT-WG to slow the trajectory of weight gain in overweight adolescent boys and girls who report LOC and prevent worsening disordered eating and metabolic functioning. The unique stress burdening the children of military personnel while the country is at war suggests that obesity prevention programs targeting interpersonal stress and promoting positive social functioning may be especially timely in this population. It is hypothesized that IPT-WG will decrease LOC eating and related eating behaviors and, in turn, prevent excess weight gain and the development of exacerbated disordered eating in adolescent children of military personnel. Secondary to the prevention of excess weight gain, youth will experience improvements in metabolic functioning.

Study Type

Interventional

Enrollment (Anticipated)

300

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

    • Maryland
      • Bethesda, Maryland, United States, 20814
    • Virginia
      • Fort Belvoir, Virginia, United States, 22060

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

12 years to 17 years (Child)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Adolescent Inclusion Criteria:

  1. Age between 12 and 17 years (at the start of the study)
  2. BMI at or above the 85th percentile for age and sex
  3. English-speaking
  4. Ability to complete study procedures, including the ability to participate in a group
  5. > 1 episode of LOC eating during the 3 months prior to assessment
  6. Must have a parent(s) enrolled in TRICARE at the time of study initiation

Parent Inclusion Criteria:

1.The consenting parent or caregiver must be able to comprehend English.

Adolescent Exclusion Criteria:

  1. Presence of a chronic major medical illness: renal, hepatic, gastrointestinal, endocrinologic (e.g., Cushing syndrome, hyper- or hypothyroidism), hematological problems or pulmonary disorders (other than asthma not requiring continuous medication).
  2. Presence of a documented, obesity-related medical complication that would require a more aggressive weight loss intervention approach: type 2 diabetes, hyperlipidemia, hypertension, fasting hyperglycemia, or nonalcoholic steatohepatitis.
  3. Self-reported current pregnancy, current breast-feeding, or recently pregnant girls (within 1 year of delivery).
  4. Current, regular use of prescription medications that affect appetite, mood, or body weight: currently prescribed SSRI's, neuroleptics, tricyclics, stimulants, or any other medication known to affect appetite, mood, or body weight. For girls, oral contraceptive use will be permitted, provided the contraceptive has been used for at least two months before starting the prevention groups. Medication use for non-serious conditions (e.g., acne) will be considered on a case-by-case basis.
  5. Current involvement in psychotherapy or a structured weight loss program.
  6. Weight loss during the past two months for any reason exceeding 3% of body weight.
  7. Current anorexia nervosa or bulimia nervosa as determined by documented medical history or if uncovered during K-SADS semi-structured interview. Current binge eating disorder (BED) will be permitted, although adolescents will be informed that they have an eating disorder and have the option to participate in the study or seek outside treatment (and not participate in the study).
  8. Individuals who have major depressive disorder, psychoses, current substance or alcohol abuse, conduct disorder, as determined by Kiddie Schedule for Affective Disorders and Schizophrenia (K-SADS) semi-structured interview and as defined by criteria outlined in the DSM-5, or any other DSM psychiatric disorder that, in the opinion of the investigators, would impede competence or compliance or possibly hinder completion of the study.

Parent Exclusion Criteria:

1. None

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Interpersonal Psychotherapy (IPT-WG)
IPT-WG targets the difficult social functioning and stressful events that are associated with loss of control eating and that are highly relevant to the adolescent children of military personnel.
IPT-WG involves one initial 1.5-hour individual session, and 12 weekly 90-minute group sessions. The IPT-WG group sessions follow 3 phases (initial, middle, and termination) and use the interpersonal inventory to identify interpersonal problems that might be contributing to or exacerbated by LOC eating. A framework of common problem areas is used to teach interpersonal problem-solving and communication skills and educate youth about risk factors for excessive weight gain and warning signs such as eating in response to negative affect as opposed to hunger, or feeling a sense of LOC while eating.
Active Comparator: Health Education (HE)
HE improves knowledge on various health topics including, alcohol, drug and tobacco use, depression and suicide, nutrition and body image, nonviolent conflict resolution, sun safety, exercise, and domestic violence.
The HE group is based upon the "HEY-Durham" health program designed by researchers at Duke University. This program, designed to be delivered to youth attending community high schools, was adapted to a 12-week program (each session is 90 minutes). Additionally, individuals will attend a pre-group individual meeting with the group leaders to review family health history.The curriculum includes focus on various health topics, including alcohol, drug and tobacco use, depression and suicide, nutrition and body image, nonviolent conflict resolution, sun safety, exercise, and domestic violence. Session content will be largely identical for boys and girls, with the exception of gender-specific videos and articles (e.g., on body image), which will be tailored for each sex.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Participant Weight
Time Frame: Change in weight from baseline to 3 years post-treatment
Weight will be measured
Change in weight from baseline to 3 years post-treatment

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Presence of binge eating
Time Frame: Change in presence of binge eating from baseline to 1 year post-treatment
The Eating Disorder Examination (EDE) will be administered to assess for the presence of binge eating. The EDE identifies three types of eating episodes: objective binge eating (overeating with LOC), subjective binge eating (LOC without objective overeating as assessed by the interviewer, but viewed as excessive by the interviewee), and objective overeating (overeating without LOC), as well as the range of compensatory behaviors described in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5).
Change in presence of binge eating from baseline to 1 year post-treatment
Waist Circumference
Time Frame: Change in waist circumference from baseline to 3 years post-treatment
Waist circumference will be measured using a flexible measuring tape.
Change in waist circumference from baseline to 3 years post-treatment
Blood Pressure
Time Frame: Change in blood pressure from baseline to 3 years post-treatment
Blood pressure will be measured using an automatic blood pressure cuff.
Change in blood pressure from baseline to 3 years post-treatment
Triglycerides
Time Frame: Change in triglycerides from baseline to 3 years post-treatment
Blood will be drawn to collect a sample for the measurement of triglycerides.
Change in triglycerides from baseline to 3 years post-treatment
HDL Cholesterol
Time Frame: Change in HDL cholesterol from baseline to 3 years post-treatment
Blood will be drawn to collect a sample for the measurement of HDL.
Change in HDL cholesterol from baseline to 3 years post-treatment
Insulin Function
Time Frame: Change in insulin sensitivity from baseline to 3 years post-treatment
Blood will be drawn to collect a sample for the measurement of insulin.
Change in insulin sensitivity from baseline to 3 years post-treatment
Glucose
Time Frame: Change in glucose from baseline to 3 years post-treatment
Blood will be drawn to collect a sample for the measurement of glucose.
Change in glucose from baseline to 3 years post-treatment
Hemoglobin A1c
Time Frame: Change in hemoglobin A1c from baseline to 3 years post-treatment
Blood will be drawn to collect a sample for the measurement of hemoglobin A1c.
Change in hemoglobin A1c from baseline to 3 years post-treatment
BMI Percentile
Time Frame: Change in BMI percentile from baseline to 3 years post-treatment
Height and weight will be measured and BMI percentile calculated
Change in BMI percentile from baseline to 3 years post-treatment

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Marian Tanofsky-Kraff, Ph.D., Uniformed Services University of the Health Sciences

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

July 1, 2015

Primary Completion (Anticipated)

May 1, 2021

Study Completion (Anticipated)

May 1, 2021

Study Registration Dates

First Submitted

July 9, 2015

First Submitted That Met QC Criteria

January 28, 2016

First Posted (Estimate)

February 2, 2016

Study Record Updates

Last Update Posted (Actual)

February 26, 2019

Last Update Submitted That Met QC Criteria

February 23, 2019

Last Verified

February 1, 2019

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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