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International Weight Control Registry

International Weight Control Registry

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04907396
Acronym
IWCR
Enrollment
100000
Registered
2021-05-28
Start date
2020-12-10
Completion date
2025-12-01
Last updated
2024-09-19

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

Conditions

Obesity, Overweight, Weight Loss

Keywords

Weight Loss Maintenance, Obesity Management

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.

Interventions

None listed

Sponsors

University of Alabama at Birmingham
CollaboratorOTHER
University of Colorado, Denver
CollaboratorOTHER
University of Kansas Medical Center
CollaboratorOTHER
Pennington Biomedical Research Center
CollaboratorOTHER
University of New Hampshire
CollaboratorOTHER
United States Military Academy West Point
CollaboratorFED
Tufts University
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
OTHER

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

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)

Exclusion criteria

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

Design outcomes

Primary

MeasureTime frame
Percent weight change5 Years

Countries

United States

Contacts

Primary ContactJames E Friedman, MPH
jfriedman@uabmc.edu205-962-8185
Backup ContactJennifer L Oslund, MS
Jennifer.Oslund@tufts.edu702-468-2263

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 17, 2026