- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00896194
Self-Efficacy in Weight Loss Treatment (SELF)
This randomized clinical trial of weight loss treatment will examine if adding personalized, one-on-one treatment session to standard behavioral group treatment will result in greater weight loss, less weight regain after weight loss, and better adherence to the treatment protocol.
Everyone who enrolls in the study will receive information on healthy eating, how to increase their physical activity and develop healthy exercise habits and ways to change their eating so that they will lose weight. This information will be provided at evening group sessions. There will be a total of 20 group meetings over an 18-month period that will be held:
- every week during the first month of the study,
- every other week for the second month
- once a month for months 3-12
- every 6 weeks for months 13-18
Participants in the self-efficacy group will also be asked to participate in one-on-one lifestyle counseling sessions with a study interventionist throughout the study.
Everyone will be asked to complete questionnaires, two 24-hour dietary recalls over the phone, and have blood tests done every six months (at the beginning of the study, at 6, 12, and 18 months) a total of 4 times for the study.
Study Overview
Status
Conditions
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Pennsylvania
-
Pittsburgh, Pennsylvania, United States, 15261
- University of Pittsburgh School of Nursing
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- age 18 years or older
- BMI > 27 and < 43
- willing to be randomized to one of the two treatment conditions
- successful completion of screening requiring 5-day recording of food intake in a paper diary
- have at least two risk factors for coronary heart disease, e.g., overweight or obese, hypertension, dyslipidemia, positive family history (first degree relative)
NOTE: Although residing in Western Pennsylvania is not an explicit eligibility criterion, participants are asked to travel to the University of Pittsburgh frequently (weekly for the first month)
Exclusion Criteria:
- presence of a current serious illness or unstable condition requiring physician-supervised diet and exercise (e.g., diabetes, recent acute myocardial infarction) for which physician supervision of diet and physical activity prescription is needed
- physical limitations precluding ability to engage in physical activity at moderate intensity
- pregnancy or intention to become pregnant in the next 18 months
- current treatment for a psychological disorder
- reported alcohol intake > 4 drinks/day
- previous participation in a formal weight loss program within the past 5 years, e.g., Weight Watchers or a research program, or current use of weight loss medication
- planned extended vacations, absences, or relocation within the next 18 months
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: 1: Standard Behavioral Treatment (SBT)
This group receives standard behavioral treatment for weight loss as described below.
|
SBT consists of group counseling sessions where participants learn about healthy eating and physical activity.
Participants are also given standard calorie goals, fat gram goals, and physical activity goals (minutes).
|
Experimental: 2: Modified SBT + Self-Efficacy
This group receives modified SBT with an additional self-efficacy component as described below.
|
This group receives identical group intervention sessions.
The goals (calories, fat grams, and physical activity minutes) are tailored to the individual's progress.
Participants meet regularly with an interventionist for one-on-one lifestyle counseling.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Weight
Time Frame: 12 and 18 months post enrollment
|
12 and 18 months post enrollment
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Health-related quality of life
Time Frame: 12 and 18 months post enrollment
|
12 and 18 months post enrollment
|
Adherence to treatment protocol
Time Frame: 12 and 18 months post enrollment
|
12 and 18 months post enrollment
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Lora E. Burke, PhD, MPH, University of Pittsburgh
Publications and helpful links
General Publications
- Goode RW, Ye L, Sereika SM, Zheng Y, Mattos M, Acharya SD, Ewing LJ, Danford C, Hu L, Imes CC, Chasens E, Osier N, Mancino J, Burke LE. Socio-demographic, anthropometric, and psychosocial predictors of attrition across behavioral weight-loss trials. Eat Behav. 2016 Jan;20:27-33. doi: 10.1016/j.eatbeh.2015.11.009. Epub 2015 Nov 14.
- Imes CC, Zheng Y, Mendez DD, Rockette-Wagner BJ, Mattos MK, Goode RW, Sereika SM, Burke LE. Group-Based Trajectory Analysis of Physical Activity Change in a US Weight Loss Intervention. J Phys Act Health. 2018 Nov 1;15(11):840-846. doi: 10.1123/jpah.2017-0484. Epub 2018 Oct 12.
- Zheng Y, Sereika SM, Ewing LJ, Danford CA, Terry MA, Burke LE. Association between Self-Weighing and Percent Weight Change: Mediation Effects of Adherence to Energy Intake and Expenditure Goals. J Acad Nutr Diet. 2016 Apr;116(4):660-6. doi: 10.1016/j.jand.2015.10.014. Epub 2015 Dec 25.
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- P01NR010949-PRO08050004
- P01NR010949 (U.S. NIH Grant/Contract)
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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