Multimorbidity (i.e., the coexistence of 2 or more chronic conditions in an individual) is increasingly recognized as a pressing public health problem. Effective interventions targeting coexisting depression and obesity are critical given the high prevalence and worsened outcomes for patients with both conditions. ENGAGE-2 is a pilot randomized controlled trial (RCT). The objective is to investigate the outcomes and mechanisms of an integrated depression and obesity intervention that combines collaborative stepped depression treatment and evidence-based behavioral weight loss treatment. The Integrated Coaching for Better Mood and Weight-2 (I-CARE2) intervention synergistically integrates 2 proven national programs: the Program to Encourage Active and Rewarding Lives (PEARLS) for depression care and the Group Lifestyle Balance (GLB) program for weight loss and cardiometabolic risk reduction. In Phase 1 of the ENGAGE project, investigators developed a new protocol to quantify activation and connectivity of the Affective, Cognitive Control, and Default Mode brain circuits from functional magnetic resonance imaging (fMRI) among 108 depressed obese patients. Investigators implement the same fMRI protocol in this second phase of the project to examine the mechanistic role of these brain circuits as potential neural targets in treatment engagement and response in the I-CARE2 intervention. A new sample of 105 depressed obese patients are randomized in a 2:1 ratio to receive the I-CARE2 intervention (n=70) or usual care (n=35). Study assessments occur at 0 (baseline), 2 and 6 months. Investigators hypothesize that 1 or more of the neural targets under study will moderate (baseline state) and/or mediate (change at follow-up) the effect of the I-CARE2 intervention versus usual care on health behaviors (problem-solving ability, dietary intakes, physical activity) and clinical outcomes (weight loss, depression, anxiety).
Participants in this study are adult patients with comorbid depression and obesity from outpatient clinics in the University of Illinois Hospital and Health Sciences System (UI Health). Participants will be randomly assigned to receive intervention or usual care control. The I-CARE2 intervention synergistically integrates the PEARLS program for depression care the GLB program for weight loss. The PEARLS program provides problem-solving therapy (PST) as first-line for treating depression, with as-needed antidepressant medication intensification. Adapted from the original Diabetes Prevention Program, the GLB program promotes healthy lifestyle change for weight loss and increased physical activity. For combination treatment, the I-CARE2 intervention provides 9 individual counseling sessions (4 weekly, 2 biweekly, and then 3 monthly; 1 hour each) and participant self-study materials (GLB videos, handouts, weight and activity tracking) over 6 months. In response to the funding mechanism for this project, the specific aim of the ENGAGE-2 pilot study is to test the degree to which engaging the validated self-regulation target(s) produces desired behavior change important for weight management and mood.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
106
I-CARE2 intervention synergistically integrates 2 proven national programs: the Program to Encourage Active and Rewarding Lives (PEARLS) for depression care and the Group Lifestyle Balance (GLB) program for weight loss and cardiometabolic risk reduction. The PEARLS program provides problem-solving therapy (PST) as first-line for treating depression, with as-needed antidepressant medication intensification. Adapted from the original Diabetes Prevention Program, the GLB program promotes healthy lifestyle change for weight loss and increased physical activity.
Institute for Health Research and Policy (IHRP), Center for Health Behavior Research
Chicago, Illinois, United States
UIMC Advanced Imaging Center
Chicago, Illinois, United States
Change in Depression Symptom Checklist 20 items (SCL-20) at 6 months
The SCL-20 is a valid, reliable measure of depression severity, scores ranging from 0 (best) to 4 (worst). SCL-20 cutoff points of 1.5 and 2.0 correspond to moderate and severe depression, respectively. It has been used in numerous depression treatment trials in primary care and community settings, making it particularly useful for cross-study comparisons and data synthesis in meta-analyses.
Time frame: Baseline, 6 months
Change in Boby Mass Index (BMI) at 6 months
BMI will be calculated based on height and weight measured per standard protocols
Time frame: Baseline, 6 months
Anxiety
Anxiety is measured using Panic Disorder module of the Mini-International Neuropsychiatric Interview (MINI).
Time frame: Baseline, 6 months
Self-regulation of emotion, cognition, and self-reflection
fMRI scan will be used to evaluate self-regulation of emotion, cognition, and self-reflection
Time frame: Baseline, 2 months, 6 months
Change in Depression Symptom Checklist 20 items (SCL-20) at 2 months
The SCL-20 is a valid, reliable measure of depression severity, scores ranging from 0 (best) to 4 (worst). SCL-20 cutoff points of 1.5 and 2.0 correspond to moderate and severe depression, respectively. It has been used in numerous depression treatment trials in primary care and community settings, making it particularly useful for cross-study comparisons and data synthesis in meta-analyses.
Time frame: Baseline, 2 months
Change in Body Mass Index (BMI) at 2 months
BMI will be calculated based on height and weight measured per standard protocols
Time frame: Baseline, 2 months
Anxiety
Anxiety is measured using Generalized Anxiety Disorder Scale (GAD-7).
Time frame: Baseline, 2 months, 6 months
Dietary Intake
Dietary intake will be recorded using 24-hours dietary recalls
Time frame: Baseline, 2 months, 6 months
Fruit, vegetable, fat and fiber intake
17-item fruit, vegetable, fat, and fiber screener will be used.
Time frame: Baseline, 2 months, 6 months
Physical activity (PA)
PA will be measured using 7-day Physical Activity Recall
Time frame: Baseline, 2 months, 6 months
Steps
Steps will be calculated using Fitbit
Time frame: Baseline, 2 months, 6 months
Problem solving
Problem Solving will be evaluated using Social Problem-Solving Inventory-Revised: Short Form
Time frame: Baseline, 2 months, 6 months
Depression Response
This will be evaluated using depression symptom checklist SCL-20 (50% decline in SCL-20 scores from baseline)
Time frame: 2 months, 6 months
Complete Depression Remission
Evaluated using depression symptom checklist SCL-20 (SCL-20 \<0.5)
Time frame: 2 months, 6 months
Weight (kg)
Measured using a weight scale. Missing study-measured weight may be replaced with weight from electronic health records or self-reported weight.
Time frame: Baseline, 2 months, 6 months
Clinically significant weight change from baseline
Dichotomous variable based on if participants reaching 5% weight loss from baseline.
Time frame: 2 months, 6 months
Blood pressure
The American Heart Association recommendations for BP measurement will be followed. BP will be measured in the seated position after at least a 5-minute rest in a separate, quiet room where no other activity is taking place and where temperature fluctuations are minimal. At baseline, both arms will be measured once and 2 more times on the arm with higher systolic reading using standard equipment. This same arm will be measured 3 times at each follow-up assessment. Wait 1 minute between each measurement.
Time frame: Baseline, 2 months, 6 months
Waist circumference
Waist circumference will be measured using a study-provided body tape measure placed on bare skin in a horizontal plane around the abdomen at the uppermost lateral border of the right iliac crest. Waist circumference will be measured to the nearest 0.1 centimeters. Two measurements will be taken, and if the measurements differ by 1.0 cm or more, then take a third.
Time frame: Baseline, 2 months, 6 months
Sleep and wake function
Sleep quality will be assessed on the 8-item Patient-Reported Outcomes Measurement Information System (PROMIS™) sleep disturbance (SD) and sleep-related impairment (SRI) scales short forms. The former measures symptoms of insomnia and the latter measures symptoms of daytime sleepiness. Each item is scaled from 1 (not at all) to 5 (very much). Correlation between the SD short form and the Pittsburgh Sleep Quality Index (PSQI, hypothesized to measure similar attributes) is 0.83 and correlation between the SRI short form and the Epworth Sleepiness Scale (ESS, hypothesized to measure a related but slightly different construct, the propensity to doze during activities) is 0.46, similar to the correlations between the SD full banks and PSQI (0.85) and between SRI full banks and the ESS (0.45).
Time frame: Baseline, 2 months, 6 months
Perceived stress
Perceived stress is measured using Perceived stress scale (PSS). PSS measures the perception of stress (i.e., the degree to which situations in one's life are appraised as stressful). PSS contains 14 items, rated on a 5-point scale ranging from "never" to "very often." After reversing the scores on 7 positive items, a sum of score is calculated with higher score indicating higher perceived stress. Cronbach's alpha ranged from 0.84 to 0.86.
Time frame: Baseline, 6 months
Disability
Disability is measured using Sheehan Disability Scale. The Sheehan Disability Scale is a validated questionnaire that measures functional disability and is sensitive to treatment effects in clinical trials. Patients rate the extent to which their symptoms impair work/school, social, and family life on a visual analog scale from0 to 10 and answer the number of days when their symptoms cause them to miss work/school and be unproductive at work/school.
Time frame: Baseline, 6 months
Generic health related quality of life
Generic health related quality of life is measured using SF-8 Health Survey. The SF-8 is an 8-item version of the SF-36 that measures overall health-related quality of life. Physical and mental health composite scores are computed using the scores of 8 questions and range from 0 to 100, with 0 indicating the lowest level of health and 100 indicating the highest level of health. Correlation between the SF-8 and the SF-36 is 0.825 for physical health component and 0.881 for mental health component.
Time frame: Baseline, 6 months
Obesity-specific health related questions
The Obesity-Related Problem Scale specifically measures the impact of obesity on psychosocial functioning. The 8-item scale has high internal reliability and sound test-retest reliability, correlates strongly with a wide range of theoretically related constructs, and is responsive to weight loss intervention.
Time frame: Baseline, 6 months
Posttraumatic stress disorder
Posttraumatic stress disorder is measured using the 17-item PTSD checklist - Civilian Version (PCL-C) that has high reliability and validity.
Time frame: Baseline, 6 months
Pain interference and intensity
Pain is measured using PROMIS SF - Pain Interference 4a and Numeric Rating Scale - Pain Intensity 1a.
Time frame: Baseline, 6 months
Binge eating severity
Binge eating severity is measured using the Binge eating severity scale.
Time frame: Baseline, 6 months
Use of general wellness programs and services questionnaire
This questionnaire asks participants if they have received a list of wellness programs and services for general physical and mental well-being in the past 6 months.
Time frame: 6 months
Self-regulation of emotion, cognition, & self-reflection
BiAffect (Smart phone passive data collection) will be used, as an alternative, to evaluate self-regulation of emotion, cognition, and self-reflection
Time frame: Baseline, 2 months, 6 months
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