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Lockdowns made it harder to lose weight, study of 4,789 people shows

NCT ID NCT04409197

Knowledge-focused Sponsor: University Hospital, Grenoble Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at how COVID-19 lockdowns changed weight, sleep, and behavior in nearly 4,800 adults already in a weight-loss program in France. Researchers wanted to see if stress, less exercise, and changes in eating habits during confinement slowed weight loss. The study is now complete and helps us understand how major life disruptions can affect health goals.

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

4,789 people

The number who actually took part.

Started

May 2020

Finished

Jul 2020

Lead sponsor

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

Subjects will be recruited from patients enrolled in a Nutritional Psycho-Behavioural Re-education (RNPC) programme in one of the RNPC centres in France.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * BMI \> 25 kg/m² and/or waist circumference \> 80 cm in women and 94 cm in men * Persons registered in the RNPC program * Be legally able to give consent after adequate information and submission of the information note * Person affiliated to social security Exclusion Criteria: * Being unable to understand, follow objectives and methods due to cognition or language problems Subjects listed in articles L1121-5 à L1121-8: Pregnant women, feeding and parturient; subject under administrative or judicial control, persons who are protected under the act.

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Conditions

The condition(s) this trial relates to.

Obesity obesity disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Comorbidities Confinement Obesity

Contacts and locations

Locations

  • CHU Grenoble Alpes

    Grenoble, France

More trials for these conditions

Other studies related to the condition(s) this trial covers.