FIT Families Multicomponent Obesity Intervention for African American Adolescents

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

NA

Total Enrollment

360 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-05-01

Study Completion Date

2026-11-30

Brief Summary

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Obesity is one of the most prevalent medical problems facing children and adolescents today, particularly among African American adolescents where the rate is alarmingly high. This study will test the effectiveness of FIT Families, a multicomponent family-based behavioral intervention that is culturally tailored to meet the unique needs of African American adolescents with obesity and their caregivers, against a credible attention control condition. This study has considerable public health relevance because it is delivered by Community Health Workers, maximizing the potential for the intervention to be sustained, and may reduce obesity-related health problems for a vulnerable population of adolescents.

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Detailed Description

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The alarming rates of obesity among children and adults, particularly among ethnic minorities, has been identified by the National Institutes of Health as one of the most serious public health challenges facing our nation in the 21st century. South Carolina (SC), part of the "Stroke Belt," has the 3rd highest obesity rate among US children at 39.2% and the 12th highest obesity rate among US adults at 32.3%. Unfortunately, African Americans in SC are disproportionately more likely to be overweight or obese (75.7% of adults, 40% of children), which places them at considerable high-risk for obesity-related diseases such as asthma, Type 2 diabetes, cardiovascular disease, hypertension, stroke, and some forms of cancer. This public health challenge is compounded by the lack of available intervention strategies specially tailored to meet the unique needs of ethnic minorities. This R01 randomized clinical trial, informed by the results from a recently completed NHLBI/NICHD center grant ("FIT Families Project," U01HL097889; PI-Naar) that followed the National Heart, Lung, and Blood Institute, Obesity Related Behavioral Intervention Trials (ORBIT) model for developing behavioral interventions, will examine the efficacy of FIT Families compared to a credible attention control condition. Each of four evidence-based behavioral components of FIT Families (home-based services, contingency management, motivational interviewing, cognitive behavioral skills training) were culturally tailored and optimized through a proof of concept sequential multiple randomized trial that produced weight loss among African American adolescents, a large and understudied population. One hundred and eighty obese African American adolescents aged 12-17 and their primary caregiver will be randomly assigned to one of two treatment conditions: 1) FIT Families or 2) Home-Based Family Support (HBFS) attention control condition. It is predicted that FIT Families will lead to greater reductions in adolescent and caregiver percent overweight, and increases in physical activity and the use of evidence-based weight management behaviors (self-monitoring of diet and exercise). If effective, FIT Families, which was carefully developed and adapted through successive Phases of ORBIT, has the potential to reduce disparities in obesity-related diseases (cardiovascular and metabolic) by addressing multiple risk factors among African American families and their adolescent children. Thus, this project has high significance in terms of potential public health impact and reduction in obesity related healthcare costs.

Conditions

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Obesity, Childhood Metabolic Syndrome

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

The proposed study follows a 2 (condition: FIT Families \[FIT\], and HBFS x 4 (time: baseline \[T1\], 3-month mid-treatment \[T2\], 6-month end of treatment \[T3\], and 12-months follow-up \[T4\]), with random assignment of 180 caregivers/youths to one of the two treatment conditions. Repeated measures of caregiver and youth percent overweight (primary outcome) and physical activity (secondary outcome) will be collected at baseline (T1), and each of the 3 post-randomization time points (T2-T4).

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Biostatistician will conduct the randomization of 180 subjects, 90 subjects per condition (FIT vs. HBFS) using a 1:1 allocation ratio. Research Assistants collecting data will be kept blind to participants' randomization status to the extent possible in a behavioral clinical trial.

Study Groups

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FIT Families

1\. FIT Families is a 6 month comprehensive multicomponent family-based behavioral intervention delivered by Community Health Workers (CHWs). FIT Families integrates home-based service delivery, Motivational Interviewing (MI; intrinsic motivation), Cognitive Behavior Skills Treatment (CBST; skills acquisition), supervised physical activity (PA), and Contingency Management (CM; extrinsic motivation). Sessions occur twice weekly for the first three months, and weekly for the second three months.

Group Type EXPERIMENTAL

FIT

Intervention Type BEHAVIORAL

FIT Families is a home-based intervention that works with youth and caregivers to lose weight and improve their health. The intervention lasts 6 months. Sessions are held twice a week for the first 3 months and then once a week for the second 3 months. These sessions will take place in home with a community health worker. In addition, participants will have the opportunity to earn prizes for completing certain intervention related tasks.

Home-Based Family Support

2\. Home-based Family Support (HBFS). Adolescents and their primary caregiver randomly assigned to HBFS will receive 6 months of weekly, home-based, client-centered, non-directive supportive family counseling.

Group Type ACTIVE_COMPARATOR

Home-Based Family Support

Intervention Type BEHAVIORAL

Home-Based Family Support Group will receive six months of weekly family counseling in the home. The weekly visits have 3 goals: 1) provide basic education in nutrition and physical recommendations for adolescent and adult obesity; 2) assess and monitor weight, physical activity, and diet via logs; and 3) offer opportunities to discuss barriers they identify to adherence to weight loss recommendations. The HBFS CHW will also address non-weight related problems such as peer or family relationship problems during the visits.

Interventions

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FIT

FIT Families is a home-based intervention that works with youth and caregivers to lose weight and improve their health. The intervention lasts 6 months. Sessions are held twice a week for the first 3 months and then once a week for the second 3 months. These sessions will take place in home with a community health worker. In addition, participants will have the opportunity to earn prizes for completing certain intervention related tasks.

Intervention Type BEHAVIORAL

Home-Based Family Support

Home-Based Family Support Group will receive six months of weekly family counseling in the home. The weekly visits have 3 goals: 1) provide basic education in nutrition and physical recommendations for adolescent and adult obesity; 2) assess and monitor weight, physical activity, and diet via logs; and 3) offer opportunities to discuss barriers they identify to adherence to weight loss recommendations. The HBFS CHW will also address non-weight related problems such as peer or family relationship problems during the visits.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

1. adolescents (ages 12-17) self-identifying as AA,
2. BMI≥95th percentile for age and gender
3. primary caregiver who is either overweight (BMI 25.0 to 29.9) or obese (BMI≥30) and willing to participate in treatment
4. adolescent residing primarily with the primary caregiver within 30 miles of the MUSC, and 5) adolescent and caregiver obtain PA clearance from a health care provider (see Protection of Human Subjects).

Exclusion Criteria

1. obesity secondary to medication use for another medical condition (e.g., steroids, antipsychotics);
2. secondary to a chronic condition (e.g., Down syndrome, Prader-Willi syndrome, Cushing's syndrome).

1. pregnancy,
2. thought disorder (e.g., schizophrenia or other psychosis), suicidal, or homicidal
3. serious cognitive impairment (e.g., inability to complete questionnaires)

Minimum Eligible Age

12 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No