Contingency Management to Promote Weight Loss in Low Income Adults

Phase 2

Completed

• Conditions: Overweight
• Interventions: Behavioral: weight loss manual-guided individual therapy sessions; Behavioral: contingency management

• Registration Number: NCT00875199
• Lead Sponsor: UConn Health

Brief Summary

This study is designed to evaluate the feasibility and provide preliminary evidence for efficacy of a 12-week contingency management intervention to promote weight loss in overweight and obese low income adults in a community-based clinic. The study has three primary goals: (a) to determine if the contingency management treatment can be effectively applied to a new application, weight loss; (b) to obtain preliminary evidence for contingency management's efficacy in promoting weight loss and improving treatment retention, diet quality, physical activity levels, and self efficacy; and (c) to identify barriers and challenges to implementing contingency management for weight loss among low income patients.

Detailed Description

Not available

Study Timeline

• Study Start: 2009-03
• Study First Submitted: 2009-03-31
• Study First Submitted QC: 2009-03-31
• Study First Posted: 2009-04-03
• Primary Completion: 2010-03
• Study Completion: 2010-03
• Status Verified: 2011-11
• Last Update Submitted: 2011-11-17
• Last Update Posted: 2011-11-21

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 30

Inclusion Criteria

• age between 18 and 55 years
• body mass index in kg/m2 (BMI) between 25 and 39.9
• resting blood pressure between 90/60 and 140/90
• ability to speak English and read at the 6th grade level
• willingness to be randomly assigned to one of two groups

Exclusion Criteria

• any serious acute or chronic medical problems that may impact dietary or exercise regimens
• psychiatric conditions

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
A	weight loss manual-guided individual therapy sessions	Participants assigned to Group A will receive the DPP manual (Wing \& Gillis, 1996), a behavioral weight-loss program with demonstrated efficacy in facilitating weight loss. Participants in Group A will be instructed to read a section of the manual each week and complete suggested activities. They will also meet with the research staff once a week for weigh-in and supportive counseling.
B	contingency management	Participants assigned to Group B will receive the DPP manual and will meet with research staff each week for weigh-in and supportive counseling. They will also receive contingency management or the opportunity to earn draws with the chance of winning prizes for losing weight and completing healthy activities.

Primary Outcome Measures

Name	Time	Method
absolute and relative weight loss	pre-treatment, weekly during active phase, post-treatment
number of participants achieving clinically significant weight loss (5% or more of baseline weight)	pre-treatment, weekly during active phase, post-treatment

Secondary Outcome Measures

Name	Time	Method
retention	during active phase
changes on measures of diet quality, physical activity, and self-efficacy	pre-treatment, post-treatment
self-reports, focus groups	pre-treatment, post-treatment

Trial Locations

Locations (1)

University of Connecticut Health Center; 🇺🇸 Farmington, Connecticut, United States