International Weight Control Registry

Recruiting

• Conditions: Obesity; Overweight; Weight Loss

• Registration Number: NCT04907396
• Lead Sponsor: Tufts University

Brief Summary

The IWCR is a global scientific study aimed at better understanding the opportunities and barriers for reducing the prevalence of obesity by collecting information from people who have experience with weight management in their everyday lives. The investigators seek to gather information on a wide range of weight management experiences, ranging from weight loss and weight loss maintenance to weight gain and inability to lose weight.

Detailed Description

Not available

Study Timeline

• Study Start: 2020-12-10
• Study First Submitted: 2021-05-25
• Study First Submitted QC: 2021-05-25
• Study First Posted: 2021-05-28
• Status Verified: 2022-12
• Last Update Submitted: 2022-12-07
• Last Update Posted: 2022-12-09
• Primary Completion: 2025-12-01
• Study Completion: 2025-12-01

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 100000

Inclusion Criteria

• The IWCR is open to anyone 18 years or older who is considering weight loss, is actively engaged in weight loss, or has previously attempted weight loss (including successful and unsuccessful attempts)

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Exclusion Criteria

1. Minors, below the age of 18
2. Adults who are not able to give informed consent online and complete online surveys

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Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Percent weight change	5 Years

Trial Locations

Locations (7)

University of Alabama at Birmingham; 🇺🇸 Birmingham, Alabama, United States

University of Colorado, Denver; 🇺🇸 Denver, Colorado, United States

University of Kansas Medical Center; 🇺🇸 Kansas City, Kansas, United States

Pennington Biomedical Research Center; 🇺🇸 Baton Rouge, Louisiana, United States

Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University; 🇺🇸 Boston, Massachusetts, United States

University of New Hampshire; 🇺🇸 Durham, New Hampshire, United States

United States Military Academy, West Point; 🇺🇸 West Point, New York, United States