French study to reveal who really benefits from obesity drug semaglutide
NCT ID NCT07423481
First seen Jun 25, 2026 · Last updated Sep 18, 2026 · Updated 2 times
Summary
This study will follow 3,000 French patients with severe or complicated obesity who are taking semaglutide (Wegovy) as part of an early access program. Researchers will track weight changes, treatment patterns, and well-being over time using questionnaires. The goal is to understand which patient characteristics predict success and why some people stop treatment.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- semaglutide (Wegovy)
- What this could lead to
- If successful, this study could help doctors predict which patients with severe obesity will benefit most from semaglutide and guide better treatment strategies.
- What could go wrong
- This is an observational study, not a controlled trial, so it cannot prove cause and effect. Results may be influenced by factors like patient motivation or other treatments.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 3,000 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Oct 2026
An estimate. Start dates often move.
- Expected to finish
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Jul 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Patients treated with WEGOVY® (semaglutide 2.4 mg) under temporary authorization for use (ATU) and the early access program in France.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Patients included in the ATU/early access program for WEGOVY with at least two dispenses of WEGOVY * No objection to the use of their data * Patients able to complete an online questionnaire (via the internet) Exclusion Criteria: • Protected patients: minors, adults under guardianship, conservatorship, and/or legal protection
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Nantes university hospital
Nantes, France
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