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16-Year study: does your Body's fuel flexibility predict future health?

NCT ID NCT06340321

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026

Summary

This study looks at whether the body's ability to switch between burning fat and sugar (called metabolic flexibility) is linked to changes in metabolic health over 16 years. Researchers will re-examine 18 people who had their metabolic flexibility measured in 2008-2009. They will check weight, blood sugar, cholesterol, and blood pressure to see if those with better flexibility stayed healthier.

What this could mean

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

What this could lead to
If successful, this could help clarify whether poor metabolic flexibility is a cause or a result of metabolic diseases like obesity and diabetes.
What could go wrong
This is a small, observational follow-up study with only 18 participants. It cannot prove cause and effect, and results may not apply to the general population.

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

18 people

The number who actually took part.

Started

Oct 2024

Finished

Aug 2025

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

Individuals who participated in the InSight study at Pennington Biomedical in 2008-2009. Such study enrolled healthy men and women aged 20-36 years, with a body mass index \<27.5 kg/m2, and a fasting glycemia \<126 mg/dL.

Ages

20 to 65 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: * Individuals who participated in the InSight study at Pennington Biomedical in 2008-2009. Exclusion Criteria: * Women who are currently pregnant or breastfeeding, have been pregnant in the last 12 months, and/or were breastfeeding in the last 6 months.

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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.

Contacts and locations

Locations

  • Pennington Biomedical Research Center

    Baton Rouge, Louisiana, 70808, United States

More trials for these conditions

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