Comparing the effectiveness of different weight management programs

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study evaluates the efficacy of three commercial weight management programs in helping participants achieve weight loss. Participants will be randomized to one of the programs and monitored for changes in weight over a 12-week period. The primary outcomes measured will include both absolute and percentage weight change. The study aims to determine which program is most effective for individuals with obesity or overweight conditions.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* 18 years or older
* BMI ≥27 kg/m²
* Own a bodyweight scale that they can weigh themselves with during the study
* Willing and able to comply with study protocol
* Capable of providing informed consent
* Able to read and write in English
* Willing to be randomized
* Willing to sign a Non Disclosure Agreement

Exclusion Criteria:

* Pregnant, lactating, or plans to become pregnant in the next 6 months
* Previous bariatric surgery or planned bariatric surgery during the study period
* Major surgery within the past 6 months or plans to have surgery during the study period
* Participation in the previous 3 months or current participation in a structured behavioral weight loss program
* Participation in another structured weight loss program during the study period (i.e., the next 3 months)
* Communication needs that would render them unable to understand the study and/or intervention materials
* Current or previous history of anorexia or bulimia nervosa
* Engagement with vomiting or laxative use within the last 28 days with the aim of controlling their shape or weight
* Currently taking anti-obesity medications, planning to take anti-obesity medications in the next 6 months, or previously taken anti-obesity medications in the previous 3 months
* Weight loss of ≥ 5 kg (11 lb) in the previous 6 months
* Self-reported diagnosis of severe depression, bipolar disorder, substance abuse, or psychosis
* Participants who are involved in any other research studies at this time
* Untreated thyroid disease or any changes (type or dose) in thyroid medication in last 6 months
* Chronic/inflammatory gastrointestinal disorders (irritable bowel syndrome is acceptable)
* History of heart problems (e.g., angina, bypass surgery, myocardial infarction, etc.) within previous 6 months
* Diagnosis of type 1 or type 2 diabetes
* Presence of implanted cardiac defibrillator or pacemaker
* History of cancer within past 5 years or current treatment for cancer
* Hospitalization for psychiatric disorders during the last 12 months

Where it's running

• WW International, Inc
  New York, New York, United States Recruiting

Study contacts

• Principal investigator: Michelle I Cardel, PhD, MS, RD — WW International Inc
• Study coordinator: Michelle I Cardel, PhD, RD
• Email: michelle.cardel@ww.com
• Phone: 0345 345 1500

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.