RightFit
RecruitingNot applicable

Optimizing Self-Monitoring Feedback Delivery for the Treatment of Overweight and Obesity

Who can join

As published by the study on ClinicalTrials.gov. "Not stated" means the study hasn't said — ask the study team.

Age
18 Years and older
Sex
All sexes
Healthy volunteers
Accepted
Compensation
Not stated

Other requirements are listed under Eligibility below. Only the study team can confirm whether you can join.

What to expect

No one can promise a trial will help you personally — that is what the research is trying to find out.

What participation involves

Not stated in the study description — ask the study team about visits and procedures.

Compensation
Not stated
  • Study-related exams and procedures are typically provided at no cost. This is how many trials work in general — confirm the details for this study with the study team.
  • Participants are monitored closely by the research team throughout the study.
  • Some participants may receive access to an investigational treatment, which is still being studied.
  • Your participation helps researchers learn whether this approach could help future patients.

About this study

In plain language

This study tests how best to give weekly feedback on progress during a weight loss program. It is for adults with overweight or obesity who own a smartphone that works with Fitbit. The study lasts 17 weeks.

The purpose of this research study is to learn how to best provide weekly feedback on individual progress toward intervention goals during a weight loss program.

Compensation is read from the study's own description and may be missing — always confirm with the study team.

Eligibility

Who can join

  • Be 18 or older.
  • Have a BMI of 25 or higher. BMI is a measure of weight compared with height.
  • Weigh 175 kilograms (about 386 pounds) or less, due to the study scale’s limit.
  • Own a smartphone that works with Fitbit and has a cell and data plan. Examples include an iPhone with iOS 16.4 or newer or an Android phone with Android 11 or newer.

Who can't join

  • Have had weight loss surgery or plan to have it during the study; take weight loss medicine now or took it in the past 6 months; or are in another weight loss program.
  • Lost 10 pounds or more in the past 6 months, changed medicine that affects weight in the past 6 months, or had an eating disorder in the past 5 years.
  • Cannot walk briskly for 10 minutes without stopping, or have a pacemaker or another medical device inside your body.
  • Are pregnant, breastfeeding, gave birth less than a year ago, or plan to become pregnant during the study.
  • Have a health condition that makes weight loss unsafe or prevents taking part. If you have diabetes, high blood pressure, or a history of heart artery disease, you need written proof that you discussed the study with your doctor.
  • Live with another study participant, cannot finish the 17 weeks, cannot read English at a 5th-grade level, cannot or will not give informed consent, or will not accept a study group chosen by chance.
  • Cannot or will not download the study app, wear the activity tracker, or use the study scale.
  • Do not finish the starting assessments or track food and weight on at least 4 of 6 days during the starting trial period. Other conditions may also rule you out if the study leader thinks they would harm your ability to take part.

Simplified for readability. The official criteria below are what the study team uses.

Official eligibility criteria

Inclusion Criteria: * Age greater than or equal to 18 years * BMI greater than or equal to 25.0 kg/m2 * Weight less than or equal to 175 kg (due to scale limit) * Own a smartphone compatible with Fitbit (e.g., an Apple iPhone running iOS 16.4 or higher or Android smartphone running Android 11 or higher) with a cellular and data plan Exclusion Criteria: * Weight greater than 175 kg (due to a weight limit of the study-provided scale) * Smartphone device owned deemed incompatible with the Fitbit App * History of bariatric surgery or plans to obtain bariatric surgery during the study period * Current use of weight loss medications, or use of weight loss medications in the 6 months prior to initial pre-screening * Currently participating in a weight-loss program * Weight loss of greater than or equal to 10 lbs in the 6 months prior to initial pre-screening * Physical limitations that prevent walking at a brisk pace for at least 10 minutes without stopping * Use of a pacemaker or other implanted medical device * Currently pregnant * Currently breastfeeding * Less than 1-year post-partum * Plans to become pregnant within the study period * Lack of written confirmation that the potential participant has discussed study participation with their physician if they have been diagnosed with diabetes, hypertension, or has have a history of coronary heart disease * One or more study participants living in the household (enrollment limited to one participant per household) * Medical conditions that contraindicate weight loss or prevent completion of the study (e.g., current diagnosis of cancer or terminal illness, dementia, etc.) * Recent (in the past 6 months) changes in medications that affect weight * Self-reported eating disorder within past 5 years * Unable to complete the 17-week study (due to plans to relocate during the study period, etc.) * Unable or unwilling to provide informed consent * Unable to read English at the 5th grade level * Unwilling to accept random assignment * Unable or unwilling to download the study smartphone application, wear the physical activity monitor, or use the study e-scale * Failure to complete baseline assessment measures * Failure to complete at least 4 out of 6 days of self-monitoring dietary and weight self-monitoring during the behavioral run-in period * Any other condition(s) which, in the opinion of the Principal Investigator, would adversely affect participation in the study

Study sites (1)

WI