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Scientists test new way to track nutrient use in bone marrow cells

NCT ID NCT03384108

What the study statuses mean

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 24, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This pilot study aims to see if a new method can measure how healthy bone marrow plasma cells use glutamine, an important nutrient. Twenty healthy adults will receive an intravenous infusion of a special labeled glutamine, followed by a bone marrow aspiration. The goal is to compare this in-person approach with lab-based methods, laying groundwork for future disease research.

What this could mean

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

Active substance
5-13C-Glutamine (a labeled form of glutamine given intravenously)
What this could lead to
If successful, this method could help researchers understand how plasma cells use nutrients, potentially guiding future treatments for diseases like multiple myeloma.
What could go wrong
This is a very early, small pilot study in healthy people, not patients. It only tests the measurement method, not a treatment, so it may not lead directly to any therapy.

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 20 people

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

Started

Sep 2017

Expected to finish

Jan 2028

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

18 to 60 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 18-60 * Able to provide written consent Exclusion Criteria: * Renal Failure * Pregnancy * Active steroid use * Active liver Disease * Anemia (Hemoglobin \< 12.5 g/dL in men and \< 11.5 g/dL in women) * H/O alcohol use (average \> 2 drinks per day) * BMI \> 30

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As listed by the trial registrant

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

How to take part

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  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

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Contacts and locations

Locations

  • Mayo Clinic

    RECRUITING

    Rochester, Minnesota, 55905, United States

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