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Daily Self-Weighing for Obesity Management in Primary Care

Daily Self-Weighing for Obesity Management in Primary Care

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04044794
Acronym
SWOP
Enrollment
396
Registered
2019-08-05
Start date
2020-11-04
Completion date
2025-10-13
Last updated
2026-03-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Overweight and Obesity

Keywords

weight management, body weight, behavioral, weighing

Brief summary

Many adults with obesity continue to gain weight even though they do not want to. This project will test the effects of a primary care intervention in which people with obesity receive an electronic scale and recommendations to weigh themselves daily. This will help us understand whether daily self-weighing might be a way to prevent continued weight gain.

Interventions

BEHAVIORALStandard Care

Standard care includes standardized educational materials to promote self-management of body weight along with provision of $60 for participants to purchase supplies or equipment to facilitate weight management.

Participants will receive a wireless digital scale and will be asked to keep the scale in their home, weigh daily at the same time, and view their weight trajectory on the scale's digital display.

Sponsors

University of Alabama at Birmingham
Lead SponsorOTHER
Indiana University
CollaboratorOTHER
Cornell University
CollaboratorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
19 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* Age 19-65 years * Body mass index (BMI) 30 - 50 kg/m2 * Receives care at one of the participating primary care clinics * Resides in one location at least 5 days each week * Possesses a smartphone with data plan * Wi-Fi or Bluetooth internet connection in home

Exclusion criteria

* Pregnancy or anticipating pregnancy during study duration. This is a weight loss study and weight gain/loss due to pregnancy and/or delivery would confound study results. Additionally, weight loss is not recommended for pregnant women. * Unwilling or unable to do any of the following: give informed consent, accept random assignment, attend five measurement assessments * Likely to relocate and no longer be seen at UAB primary care in the next 2 years * Weight loss ≥5% of body weight in past 6 months (other than postpartum) * Weight \>180 kg (396lbs) due to the limitation of the scale being used. * Current participation in another weight loss study * Bariatric surgery or revision in the past two years * Prescription weight loss medications within the past 6 months * Another household member already participating in the study * Potential participants living farther than 50 miles driving distance from UAB will be excluded from the study. It is expected that those living farther away will be more difficult to retain as study participants.

Design outcomes

Primary

MeasureTime frameDescription
Change in body weight from baseline to month 66 monthsBody weight measured to the nearest 0.1 kg using a calibrated electronic scale
Change in body weight from baseline to month 1212 monthsBody weight measured to the nearest 0.1 kg using a calibrated electronic scale
Change in body weight from baseline to month 1818 monthsBody weight measured to the nearest 0.1 kg using a calibrated electronic scale
Change in body weight from baseline to month 2424 monthsBody weight measured to the nearest 0.1 kg using a calibrated electronic scale

Secondary

MeasureTime frameDescription
Average number of weight control behaviors endorsed on the Weight Control Practices Survey at month 6baseline to month 6A modified version of the 23-item Weight Control Practices Survey will assess a variety of strategies for weight control, including participation in structured programs and/or self-directed weight control behaviors (e.g., reducing fat intake, maintaining food records, increasing physical activity, frequency of self-weighing). The survey measures presence and duration (in weeks) of each behavior.
Average number of weight control behaviors endorsed on the Weight Control Practices Survey at month 12month 6 to month 12A modified version of the 23-item Weight Control Practices Survey will assess a variety of strategies for weight control, including participation in structured programs and/or self-directed weight control behaviors (e.g., reducing fat intake, maintaining food records, increasing physical activity, frequency of self-weighing). The survey measures presence and duration (in weeks) of each behavior.
Average number of weight control behaviors endorsed on the Weight Control Practices Survey at month 18month 12 to month 18A modified version of the 23-item Weight Control Practices Survey will assess a variety of strategies for weight control, including participation in structured programs and/or self-directed weight control behaviors (e.g., reducing fat intake, maintaining food records, increasing physical activity, frequency of self-weighing). The survey measures presence and duration (in weeks) of each behavior.
Average number of weight control behaviors endorsed on the Weight Control Practices Survey at month 24month 18 to month 24A modified version of the 23-item Weight Control Practices Survey will assess a variety of strategies for weight control, including participation in structured programs and/or self-directed weight control behaviors (e.g., reducing fat intake, maintaining food records, increasing physical activity, frequency of self-weighing). The survey measures presence and duration (in weeks) of each behavior.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 24, 2026