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Scientists seek better way to measure Body's energy use

NCT ID NCT05398783

Recruiting now Knowledge-focused Sponsor: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) Source: ClinicalTrials.gov ↗

First seen Jun 25, 2026 · Last updated Jul 02, 2026 · Updated 3 times

Summary

This natural history study will look at how metabolism relates to body size and composition in 2,000 people aged 2 and older, including healthy volunteers and those with conditions like diabetes, obesity, or cancer. Participants will stay in the hospital for two days to undergo various tests, such as breath analysis, body scans, and blood samples. The goal is to develop more accurate ways to estimate metabolic rate, which could improve care for many diseases.

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 study could lead to more accurate ways to measure metabolism, helping doctors tailor treatments for conditions like diabetes and obesity.
What could go wrong
This is an observational study, not a treatment trial. It will not directly test any therapy, and results may take years to influence medical practice.

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Conditions

The condition(s) this trial relates to.

cancer chronic kidney disease chronic renal failure syndrome diabetes mellitus kidney disorder metabolic disease neoplasm obesity disorder

As listed by the trial registrant

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

CANCER CHRONIC KIDNEY DISEASE DIABETES METABOLIC DISORDERS NORMAL PHYSIOLOGY

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • National Institutes of Health Clinical Center

    RECRUITING

    Bethesda, Maryland, 20892, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••

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