Contingency Management to Promote Weight Loss in Low Income Adults

UConn Health

Status and phase: Completed; Phase 2

Conditions: Overweight

Treatments: Behavioral: contingency management; Behavioral: weight loss manual-guided individual therapy sessions

Study type: Interventional

Funder types: Other

Identifiers

NCT00875199

09-108-2

20090009 (Other Grant/Funding Number)

Details and patient eligibility

About

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.

Enrollment: 30 patients

Sex: All

Ages: 18 to 55 years old

Volunteers: No Healthy Volunteers

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

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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30 participants in 2 patient groups

A

Active Comparator group

Description:

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.

Treatment:

Behavioral: weight loss manual-guided individual therapy sessions

B

Experimental group

Description:

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.

Treatment:

Behavioral: contingency management