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Mayo clinic launches study to uncover hidden bone marrow weakness in blood cancer patients

NCT ID NCT06536452

Knowledge-focused Sponsor: Mayo Clinic 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looks at how chronic lymphocytic leukemia (CLL) and its early stage, monoclonal B-cell lymphocytosis (MBL), affect the bone marrow's ability to fight infections. Researchers will compare bone marrow samples from 50 participants—including people with CLL, people with MBL, and healthy adults of similar age. The goal is to understand the differences in infection-fighting function, which may lead to better care in the future.

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 50 people

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

Started

Nov 2016

Expected to finish

Nov 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.

Who is studied

Patients with MBL, patients with CLL ,and healthy subjects recruited through Mayo Clinic.

Ages

40 years and older

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: * Subjects in the CLL cohort who are eligible for these studies will have a clinically established diagnosis of CLL as assessed by flow cytometry and will include subjects who * Remain untreated * Are currently being treated * Who have already been treated * Subjects in the MBL cohort will have a clinically established diagnosis of MBL * Healthy age-matched control subjects * Healthy younger control subjects aged \> 40 years Exclusion Criteria: * Anyone under 40 * Healthy control subjects must not have a diagnosis of CLL or MBL

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Conditions

The condition(s) this trial relates to.

B-cell chronic lymphocytic leukemia persistent polyclonal B-cell lymphocytosis

As listed by the trial registrant

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

Chronic lymphocytic leukemia Monoclonal B-cell lymphocytosis

How to take part

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

  1. The study's own enquiry address

    This study publishes an address for enquiries. See it below .

  2. The places running it

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

  3. 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 ↗

  4. 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

  • Mayo Clinic in Rochester

    RECRUITING

    Rochester, Minnesota, 55905, United States

    Contact Email: •••••@•••••

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