Internet Assisted Obesity Treatment

Not Applicable

Completed

• Conditions: Obesity; Overweight
• Interventions: Behavioral: internet, in-person and internet+in-person

• Registration Number: NCT00265954
• Lead Sponsor: University of Vermont

Brief Summary

High quality behavioral weight loss programs are not widely accessible. The Internet offers one way to deliver health behavior programs to a wider audience. However, effective weight loss treatments are intensive and program delivery over the Internet may not be capable of duplicating the level of engagement typically generated during traditional in-person treatment. The goal of this study is to test the effectiveness of three weight loss interventions: Internet alone, Internet+periodic in-person support, and in-person alone. The investigators hypothesize that the in-person and internet+in-person interventions will produce better weight loss and maintenance than the internet only group.

Detailed Description

Currently 65% of the adult population is overweight or obese. Unfortunately, safe and effective treatments for obesity are costly and intensive; therefore, this level of support is unlikely to be feasible in most clinical settings. Moreover, an additional limitation to current obesity treatment approaches is the limited reach and availability of programs for persons who work, live in rural areas or do not want, or cannot afford participation in group support classes. The advent of telecommunications technology may provide a solution to this dilemma. Telecommunications technology can presumably improve access to services and improve efficiency of delivery. Moreover, research examining new technologies such as the Internet, will provide information for policy makers interested in disseminating low-cost, high reach effective obesity treatment interventions. However, the effectiveness of the Internet for inducing weight loss has not been rigorously tested. Therefore, the overall goal of this project is to determine if obesity treatment can be effectively delivered over the Internet. A secondary aim is to evaluate whether the effectiveness of Internet interventions can be improved with the addition of minimal in-person support. Specifically, this project is a randomized, controlled clinical trial designed to test the translation of a behavioral weight loss program to the Internet (I). The I intervention will be compared to both an in-person condition (IP) and an Internet condition supplemented with periodic in-person support (I+IP). Subjects will be 488 (30% minority) overweight and obese adults recruited from Vermont and Arkansas who will participate in a 6-month behavioral weight control treatment program followed by 12 months of weight maintenance. Assessments will include measures of body weight, adherence to treatment goals, social influence components and frequency of use of Internet website features.

Study Timeline

• Study First Submitted: 2005-12-14
• Study First Submitted QC: 2005-12-14
• Study First Posted: 2005-12-15
• Study Start: 2006-02
• Primary Completion: 2009-10
• Study Completion: 2009-10
• Status Verified: 2019-08
• Last Update Submitted: 2019-08-02
• Last Update Posted: 2019-08-06

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 481

Inclusion Criteria

• >18 years old
• BMI>25
• Internet access

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Exclusion Criteria

• pregnancy
• major medical problems
• inability to walk for exercise

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
1	internet, in-person and internet+in-person	Individuals in this arm receive a 6 month behavioral weight loss intervention delivered on-line. Groups meet via a web chat weekly for 24 weeks and monthly for the following 12 months.
2	internet, in-person and internet+in-person	In-person; Individuals in the in-person condition attend weekly group behavioral weight loss sessions for 24 weeks and then monthly sessions for the following 12 months.
3	internet, in-person and internet+in-person	In-person+internet; Individuals in this condition receive a behavioral weight loss intervention over the internet weekly for 24 weeks and monthly for the following 12 months. Every month during the first 24 weeks and every third month during the following year they have an in-person meeting.

Primary Outcome Measures

Name	Time	Method
Body Mass Index or body weight change	0, 6, 12, 18 month time points

Secondary Outcome Measures

Name	Time	Method
Social support, diet, exercise, adherence to treatment components	0, 6, 12, 18 months

Trial Locations

Locations (2)

University of Arkansas for the Medical Sciences; 🇺🇸 Little Rock, Arkansas, United States

University of Vermont; 🇺🇸 Burlington, Vermont, United States