Enhancing Memory to Facilitate Weight Loss: Tracking, Recording and Coaching

Not Applicable

Completed

• Conditions: Overweight and Obesity
• Interventions: Behavioral: Guided Self-Help Behavioral Weight Loss

• Registration Number: NCT03446729
• Lead Sponsor: University of California, San Diego

Brief Summary

The objective of this application is to pilot test and evaluate the acceptability and efficacy of a program to facilitate weight loss by enhancing memory for a recently consumed meal.

Detailed Description

Once enrolled, all participants will receive behavioral weight loss treatment. Treatment will be 12 weeks in duration and will consist of 7 sessions. The content of sessions will provide the main elements described in behavioral therapy programs for obesity, based on empirical literature. Participants will be provided handouts, and the handout content will be based on our clinic treatment manual and published behavior therapy protocols. The program will be administered in individual 30-60-min sessions with a behavioral coach meeting every other week. This program emphasizes self-monitoring of food intake. It also emphasizes gradual weight loss, increasing physical activity, and improving diet through permanent lifestyle changes. Program topics include: self-monitoring of eating behavior, physical activity, changing the home environment and nutrition education. All treatment sessions will be conducted by licensed clinical health psychologists or psychology doctoral level students with experience in leading weight loss interventions.

Study Timeline

• Study Start: 2014-01-02
• Primary Completion: 2015-12-03
• Study Completion: 2015-12-03
• Status Verified: 2018-02
• Study First Submitted: 2018-02-08
• Study First Submitted QC: 2018-02-20
• Last Update Submitted: 2018-02-20
• Study First Posted: 2018-02-27
• Last Update Posted: 2018-02-27

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 50

Inclusion Criteria

1. Participant must be overweight (BMI between 25-40)
2. Participant must be between the ages of 18-55
3. Participant can read at a minimum of an 5th grade level in English
4. Participant is willing to participate and to commit to 12 weeks of treatment and attendance at assessments

Exclusion Criteria

1. Participant is unable to exercise (ex., due to physical or medical reasons)
2. Major psychiatric disorder diagnoses, including an eating disorder
3. Diagnoses of a serious current physical disease (such as diabetes) for which physician supervision of diet is needed
4. Participant who takes medications that would influence weight and eating, or cognitive functioning, such as attention, concentration, or mental status

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Memory Self Monitoring (MSM)	Guided Self-Help Behavioral Weight Loss	Intervention: Guided self-help Behavioral Weight Loss. The MSM group is assigned to self-monitor in "habit books" what they consume in their previous meal immediately prior to each meal, similar to other studies exploring the effect of episodic meal memory on food intake.
Caloric Self Monitoring (CSM)	Guided Self-Help Behavioral Weight Loss	Intervention: Guided self-help Behavioral Weight Loss. The CSM group is assigned to self-monitor what food they consume, and the associated caloric content after each meal in their "habit books" in line with traditional BWL self-monitoring.

Primary Outcome Measures

Name	Time	Method
Attrition	Change from baseline at an average of 12 weeks	The percentage of participant attrition from each treatment arm
Attendance	Post-Treatment (12 weeks following baseline)	The number of treatment visits attended
Acceptability	Measured at an average of 12 weeks following baseline	Average of likert ratings of self-monitoring method, was it "easier," "more helpful," or "more convenient" than any methods participants may have used to self-monitor in the past
Weight Change	Change from baseline at an average of 12 weeks and 24 weeks	Weight and height will be combined to report BMI in kg/m\^2
Self-Monitoring Adherence	Post-Treatment (12 weeks following baseline)	The number of days that participants self-monitor

Secondary Outcome Measures

Name	Time	Method
Working Memory	Change from baseline at an average of 12 weeks and 24 weeks	Digit Span: scaled total forward and backward score
Food specific memory	Change from baseline at an average of 12 weeks and 24 weeks	A food version of the California Verbal Learning Test. Sum of words recalled across the five recall trials of list A (high calorie food, low calorie food, neutral words) as a measure of global index of verbal learning ability.