International Weight Control Registry
This is an observational study called the International Weight Control Registry (IWCR). It's designed to understand what helps and hinders people in managing their weight. Researchers are collecting information from people who are thinking about losing weight, actively losing weight, or have tried to lose weight in the past, whether successfully or not. You can join if you are 18 years or older and can complete online surveys. The study aims to understand how much weight changes over 5 years. The current status of the study is unclear, but it plans to enroll 100,000 people.
- Study design
- This is an observational study, meaning researchers will collect information without giving any specific treatments. It aims to include 100,000 participants.
- What's involved
- You would need to be able to give informed consent online and complete online surveys.
- Compensation
- Not stated in the trial record.
- Follow-up
- The primary endpoint, percent weight change, will be measured at 5 years.
AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.
International Weight Control Registry
At a glance
Conditions
Where it's being run
7 sites across 7 statesStudy leadership
- Susan B Roberts, PhD · PRINCIPAL_INVESTIGATOR · Tufts University
- James O Hill, PhD · PRINCIPAL_INVESTIGATOR · University of Alabama at Birmingham
- Sai K Das, PhD · STUDY_DIRECTOR · Tufts University
- Drew Sayer, PhD · STUDY_DIRECTOR · University of Alabama at Birmingham
Who to contact
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Do you actually qualify for this trial?
Add a private profile and we'll compare every criterion below against your situation — and tell you which ones are met, uncertain, or excluding.
Inclusion
What this trial measures
- Percent weight change5 Years