Tracking Peripheral Immune Cell Infiltration of the Brain in Central Inflammatory Disorders Using [Zr-89]Oxinate-4-labeled Leukocytes.

February 17, 2026 updated by: Jonathan E McConathy, University of Alabama at Birmingham
This study will use brain Positron Emission Tomography/ Magnetic Resonance Imaging (PET/MRI) and an investigational radioactive drug called [Zr-89]oxine to track the location of white blood cells (also called leukocytes) in the body. PET/MRI will be used to visualize labeled white blood cells and determine if they enter the central nervous system in conditions associated with brain inflammation (also called neuroinflammation). By better understanding the role of neuroinflammation in fibromyalgia, chronic fatigue syndrome, and multiple sclerosis, the investigator hopes to be able to better diagnose and treat patients in the future.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Suspended

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
120

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • United States
    • Alabama
      • Birmingham, Alabama, United States, 35294
        • UAB

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

14 years to 61 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

1.18 to 65 years of age 2.Healthy volunteer OR

  • Clinical diagnosis of Multiple Sclerosis (MS) OR
  • Meets 2016 American College of Rheumatology (ACR) case definition criteria for fibromyalgia OR
  • Meets 1994 Fukuda case definition criteria for Chronic Fatigue Syndrome

Exclusion Criteria:

  1. Contraindication to MRI
  2. Pregnancy
  3. Lactation
  4. Individuals who are unable to participate in the imaging portion due to severity of their medical condition
  5. Chronic infectious disease (e.g. HIV, HCV)
  6. Viral or bacterial illness requiring medical attention and/or antibiotics within 1 month of study participation
  7. Diagnosis of cancer, including leukemia
  8. Blood or blood clotting disorder
  9. Except for individuals with MS, a diagnosis of autoimmune disease is exclusionary
  10. Positive urine pregnancy test day of procedure or a serum pregnancy test within 48 hours prior to the administration of Zirconium-89 Oxinate-4-labeled leukocytes
  11. Currently enrolled in a clinical trial utilizing experimental therapies
  12. Contraindication to gadolinium based contrast agents

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Healthy Controls
Drug: [Zr-89]Oxine-labeled leukocytes PET/MRI
All study participants will undergo an investigational imaging study using autologous [Zr-89]-labeled leukocytes and brain PET/MRI. Participants will undergo a venous blood draw, and the leukocytes in the blood sample will be isolated for labeling using [Zr-89]oxine. The labeled leukocytes (7.4- 18.5 megabecquerel (MBq), 200-500 uCi) will be re-injected into the participant followed by brain PET/MRI at 24-48 hours after injection. Participants will be asked to have a second brain imaging study 3-6 days after this injection, but this second imaging study is optional.
Experimental: Fibromyalgia
Drug: [Zr-89]Oxine-labeled leukocytes PET/MRI
All study participants will undergo an investigational imaging study using autologous [Zr-89]-labeled leukocytes and brain PET/MRI. Participants will undergo a venous blood draw, and the leukocytes in the blood sample will be isolated for labeling using [Zr-89]oxine. The labeled leukocytes (7.4- 18.5 megabecquerel (MBq), 200-500 uCi) will be re-injected into the participant followed by brain PET/MRI at 24-48 hours after injection. Participants will be asked to have a second brain imaging study 3-6 days after this injection, but this second imaging study is optional.
Experimental: Chronic Fatigue Syndrome
Drug: [Zr-89]Oxine-labeled leukocytes PET/MRI
All study participants will undergo an investigational imaging study using autologous [Zr-89]-labeled leukocytes and brain PET/MRI. Participants will undergo a venous blood draw, and the leukocytes in the blood sample will be isolated for labeling using [Zr-89]oxine. The labeled leukocytes (7.4- 18.5 megabecquerel (MBq), 200-500 uCi) will be re-injected into the participant followed by brain PET/MRI at 24-48 hours after injection. Participants will be asked to have a second brain imaging study 3-6 days after this injection, but this second imaging study is optional.
Experimental: Multiple Sclerosis
Drug: [Zr-89]Oxine-labeled leukocytes PET/MRI
All study participants will undergo an investigational imaging study using autologous [Zr-89]-labeled leukocytes and brain PET/MRI. Participants will undergo a venous blood draw, and the leukocytes in the blood sample will be isolated for labeling using [Zr-89]oxine. The labeled leukocytes (7.4- 18.5 megabecquerel (MBq), 200-500 uCi) will be re-injected into the participant followed by brain PET/MRI at 24-48 hours after injection. Participants will be asked to have a second brain imaging study 3-6 days after this injection, but this second imaging study is optional.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Regional brain distribution of radiolabeled white blood cells
Time Frame: 3 years
Descriptive statistics (means and standard deviations) of standardized uptake values (SUVs) will be presented for the patient groups and healthy controls in the following regions: whole brain, gray matter, white matter, atlas-based regions of interest, and lesions (MS patients only). Normality of the SUV distribution will be tested using Shapiro-Wilk tests, and the data will be transformed to normal distribution if necessary.
3 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Alabama at Birmingham

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Jonathan McConathy, MD,PhD, University of Alabama at Birmingham

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 5, 2021

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 1, 2028

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
October 1, 2028

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 14, 2019

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 14, 2019

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 17, 2019

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
February 20, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 17, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • R18-179
  • ME Research UK (Other Grant/Funding Number: ME Research UK)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

Yes

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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