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Scientists build a room that tracks every calorie you burn

NCT ID NCT07155564

Knowledge-focused Sponsor: University of Leipzig Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Sep 15, 2026 · Updated 2 times

Summary

This study aims to better understand how many calories a person needs to eat to stay in energy balance, meaning their weight stays the same. Researchers will use a whole-room calorimeter, a special room that measures the energy your body burns, to get more accurate results than usual formulas. About 34 healthy adults will participate, and the findings could help improve obesity prevention.

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

About 49 people

The number the study aims to enrol. It can still change while the study runs.

Started

Aug 2025

Expected to finish

Jan 2029

An estimate. End dates often move.

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

Healthy, non-obese subjects of both sexes.

Ages

18 to 65 years

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: * Abilty to provide informed consent * Written declaration of consent * Healthy study participants * Able to perform moderate physical exercise using a bike ergometer * Women: continuous contraception/fullicular phase of menstrual cycle Exclusion Criteria: * Weight change \> 5 kg or 5% of body weight in the last 3 months * Nicotine abuse, Alcohol/drug abuse * Strenuous physical activity in everyday life \> 1 h per day * Body mass index \< 18.5 kg/m² or ≥ 40 kg/m² * Chronic diseases with an impact on energy expenditure * Food allergy/intolerance, vegan diet * Circumstances that speak against the application of wearable accelerometers (e.g. silicone contact allergy) * Impaired fasting glucose, diabetes mellitus and prediabetes * Pregnancy/breastfeeding * Claustrophobia * Refusal to communicate incidental findings

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Conditions

The condition(s) this trial relates to.

Body Weight Changes

As listed by the trial registrant

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

Healthy Obesity prevention

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • Department of Internal Medicine, Clinic for Endocrinology, Nephrology and Rheumatology, University of Leipzig

    RECRUITING

    Leipzig, Saxony, 04103, Germany

More trials for these conditions

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