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Tiny study uses special tracers to uncover Obesity's metabolic secrets

NCT ID NCT07020741

Knowledge-focused Sponsor: University of Illinois at Urbana-Champaign 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026

Summary

This study will use special 'tracer' molecules (stable isotopes) to measure how the body of an adult with obesity processes protein and sugar. Eight participants will each undergo two test sessions: one measuring protein breakdown and another measuring glucose tolerance. The goal is to better understand the metabolic changes linked to obesity.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
stable isotope tracers (carbon-13 and deuterium-labeled glucose and phenylalanine)
What this could lead to
If successful, this study could help researchers better understand how obesity alters protein and sugar processing in the body, potentially guiding future treatments.
What could go wrong
This is a very small, early-stage observational study with only 8 participants. It is not testing a treatment, so it will not directly lead to a new therapy. Results may not apply to all people with obesity.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 8 people

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

Started

Sep 2025

Expected to finish

Dec 2026

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.

Ages

19 to 59 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * ages 19-59 * Obese \>/= 30 kg/m\^2 and \>/= 102 cm for males and \>/= 88 cm for females * Godin Leisure-time or exercise questionnaire \<14 units Exclusion Criteria: 1. Pregnant or become pregnant 2. Any known food allergies 3. Smoker 4. Are physically active 5. Have any known metabolic diseases 6. Have been weight unstable within the last 6 months (lost or gained \>10% of body mass) 7. Non eumenorrheic or on a hormonal birth control

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Conditions

The condition(s) this trial relates to.

glucose metabolism disease obesity disorder

As listed by the trial registrant

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

Glucose metabolism Obese patients (bmi ≥ 30 KG/m²) Protein metabolism

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

  • Freer Hall - University of Illinois

    RECRUITING

    Urbana, Illinois, 61801, United States

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