A Behavioral Intervention for Reducing Obesity

NCT00892788 | Completed

• 2 other identifiers: 09-128-120090200
• Study Type: interventional
• Target: 56
• Locations: 1 country
• Sites: 1

Brief Summary

This study will examine a contingency management (CM) intervention designed to provide incentives for losing weight versus participating in a manual-guided behavioral weight loss intervention alone. Participants in the CM condition will earn the opportunity to win prizes by losing weight and completing activities that contribute to weight loss, such as keeping daily food and physical activity diaries, choosing healthy foods, exercising, and using other weight loss strategies. The investigators will determine if the CM improves weight loss relative to the usual care manual-guided intervention alone.

Conditions

Overweight; Obesity

Keywords

Overweight; Obesity; Contingency Management

Outcome Measures

Primary Outcomes (3)

• absolute and relative weight loss

  Weeks 1-12

• changes in waist circumference

  Week 1 and Week 12

• proportion of participants achieving clinically significant weight loss (5% or more of baseline weight)

  Week 1 and Week 12

Secondary Outcomes (2)

• indices of treatment retention

  Weeks 1-12

• changes on measures of diet quality, physical activity, and physiological parameters such as blood pressure, lipoproteins, insulin, and glucose levels

  Week 1 and Week 12

Study Arms (2)

A

ACTIVE COMPARATOR

Participants assigned to Group A will receive the LEARN (Lifestyle, Exercise, Attitudes, Relationships, Nutrition) Program weight loss manual and 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.

Behavioral: weight loss manual-guided individual therapy sessions

B

EXPERIMENTAL

Participants assigned to Group B will receive the LEARN 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.

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

Interventions

contingency management BEHAVIORAL

Prize-based contingency management for weight loss

B

weight loss manual-guided individual therapy sessions BEHAVIORAL

once weekly counseling sessions with research staff

A; B

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• age between 18 and 65 years
• body mass index in kg/m2 (BMI) between 30.0 and 39.9
• seated blood pressure of 100/60-140/90 mmHg
• ability to speak English and read at the 6th grade level
• willingness to be randomly assigned to one of two groups

You may not qualify if:

• any serious acute or chronic medical problems that may impact dietary or exercise regimens or impact weight loss

Sponsors & Collaborators

• UConn Health: lead
• UCHC/Storrs and Regional Campus Incentive Grants: collaborator

Study Sites (1)

University of Connecticut Health Center

Farmington, Connecticut, 06030-3944, United States

Location

MeSH Terms

Conditions

Overweight; Obesity

Condition Hierarchy (Ancestors)

Overnutrition; Nutrition Disorders; Nutritional and Metabolic Diseases; Body Weight; Signs and Symptoms; Pathological Conditions, Signs and Symptoms

Study Officials

• Nancy M Petry, Ph.D.

  UConn Health

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: April 3, 2009
• First Posted: May 5, 2009
• Study Start: April 1, 2009
• Primary Completion: July 1, 2010
• Study Completion: July 1, 2010
• Last Updated: April 9, 2019

Record last verified: 2019-04

Locations

US (1)