About this trial
This trials will formally test whether participants' active choice of self-regulatory strategies (AVOID or RESIST) leads to greater adherence to weight management strategies by comparing the CHOICE arms to the randomized arms of the parent intervention, AVOID/RESIST (IRB STUDY00001652: AVOID-RESIST).
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Age 18 years or older
BMI between 25-45 kg/m2
Read, write, and speak English with acceptable visual acuity
Disqualifiers
Currently enrolled in weight loss interventions or undergoing bariatric surgery
Pregnant women
Individuals for whom weight loss may be contraindicated (e.g., unstable coronary artery disease, end-stage disease, active cancer treatment, uncontrolled insulin-dependent diabetes, portal hypertension, drug/alcohol abuse)
Individuals who have pacemakers or other electronic medical device implantations
Trial design
Parallel
Treatments tested in this trial
AVOID
BehavioralBehavioral: Home food environment and grocery delivery (AVOID) Participants will receive coaching (Zoom and/or email/text) to modify their home food environment and alter cues to promote healthy food choices Behavioral: WW Participants assigned to all arms will receive of coaching (Zoom and/or email/text) and commercially-available weight management program focusing on diet, physical activity and mindset skills.
RESIST
BehavioralBehavioral: Inhibitory control training (RESIST) Participants assigned to RESIST will receive coaching (Zoom and/or email/text) and gamified inhibitory control training. Behavioral: WW Participants assigned to all arms will receive coaching (Zoom and/or email/text) and commercially-available weight management program focusing on diet, physical activity and mindset skills.
Treatment groups
Trial outcomes
Primary outcomes
Completion Rate of Follow-up Visits
We will continuously track the rate of 3-month and 6-month follow-up completion as followed: actual follow-ups completed / expected follow-ups to be completed.
Secondary outcomes
Height
Participant baseline height is self-reported in inches.
Demographics
Demographic questionnaire will be used to capture date of birth, sex and gender identity, race, ethnicity, socioeconomic status (education, household income, marital status, employment status) and household composition (e.g., multigenerational, children).
Drivers of preference, retention, and adherence
Our quantitative analytic approach will make it possible to compare CHOICE and RANDOM study follow-up completion, adherence, and weight loss among Non-Hispanic White and among those who identify to an ethnic and/or racial minoritized group. Quantitative analyses, however, do not make it possible to contextualize drivers that may influence relative preference, retention, and adherence. Using semi-structured interviews (Appendix A), we will explore the depth of personal beliefs and experiences, cultural contexts, social dynamics, social support systems, and household factors that may influence affect participants' preferences and sustained engagement. This knowledge will inform personalized behavior change strategies that are sensitive to the diverse needs of participants' social context.
Weight
Weight is measured using the Bluetooth enabled scales based on standard practices (e.g., empty pockets). Weight loss will be operationalized as the difference between weight at baseline, 3-month and 6-month.
Other outcomes
Physical activity
We will leverage data conferred by the WW program to physical activity (type, duration and intensity) via the WW mobile app or online website.
Sponsors and contacts
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Cedars-Sinai Medical Center
Lead sponsor
University of California, Riverside
Collaborator
Northeastern University
Collaborator
WW International Inc
Collaborator
The University of Tennessee, Knoxville
Collaborator