PET/MR Scan With [68Ga]Ga-PentixaFor (CXCR4) vs Standard of Care (SOC) for Initial Staging and Follow up in Multiple Myeloma (MM)

June 24, 2025 updated by: University Health Network, Toronto

[68Ga]Ga-PentixaFor (CXCR4) PET/MR for Initial Staging and Follow up in Multiple Myeloma: Prospective Comparison With Standard of Care PET/CT and Evaluation of Therapy Influence

Multiple myeloma is a disease mainly located in participants bones. Usually a participants physician arrives at this diagnosis by doing blood tests and ordering standard of care imaging tests (18F-FDG PET/CT and maybe additional MRI) to see how many bones (and/or other organs) are affected. While these two imaging tests are already very good, recent research indicates that even more precise imaging methods could be used to diagnose participants disease more precisely.

The purpose of this study is to learn if a combined PET/MR scan with a new radiotracer, [68Ga]Ga-PentixaFor, can provide more accurate and precise diagnostic information in patients with Multiple Myeloma, a type of cancer primarily affecting the bones.

This study aims to improve the accuracy of diagnosing and monitoring Multiple Myeloma using more advanced imaging techniques.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Detailed Description

The investigators will be focusing on Multiple Myeloma patients, a disease mainly located in the participants bones. The goal of this clinical trial is to evaluate the diagnostic and prognostic value of CXCR4-targeted PET/MR imaging in patients with Multiple Myeloma (MM), comparing it to the standard 18F-FDG-PET/CT and MRI imaging for the initial staging, follow-up, and treatment decision-making. The study will focus on newly diagnosed MM patients and those who may undergo stem cell transplantation.

The investigators will compare the performance of [68Ga]Ga-PentixaFor PET/MR to standard imaging methods (18F-FDG-PET/CT and MRI) to see if CXCR4-targeted imaging offers improved accuracy, better tumor detection, and a greater influence on treatment decisions.

This study aims to establish whether combining CXCR4-targeted PET/MR imaging could become a comprehensive diagnostic tool for MM, enhancing disease monitoring, guiding therapeutic decisions, and reducing patient burden by eliminating the need for multiple imaging sessions.

Study Type

Interventional

Enrollment (Estimated)

30

Phase

  • Not Applicable

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 Backup

Study Locations

  • Canada
    • Ontario
      • Toronto, Ontario, Canada, M5G 2N2
        • Recruiting
        • University Health Network

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

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion criteria

  • Patient older than 18 years of age
  • Clinical diagnosis of (nonsecretory, oligosecretory, suspicion for extramedullary MM) MM. MM diagnosis is based on IMWG (International Myeloma Working Group) criteria.No treatment received beyond first course of

Exclusion criteria

  • Any contra-indications for MRI or 18F-FDG PET/CT imaging according to institutional guideline
  • Pregnancy (will be ruled out as per institutional protocol)
  • Inability to lie still in prone position in MRI for at least 30 min or PET/CT for at least 30 min
  • Patients or unwilling to use contraception during study and breastfeeding women can also not partake in this study
  • Inability to provide consent
  • Any hypersensitivity or known allergy to any component of the investigational product ([68Ga]Ga-PentixaFor)No concomitant other malignant hemato-oncological disease being diagnosed (i.e. additional lymphoma or leukemia)

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: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: CXCR4-targeted [68Ga]Ga-PentixaFor PET/MR Imaging
This arm involves patients undergoing the investigational imaging modality, CXCR4-targeted [68Ga]Ga-PentixaFor PET/MR, to evaluate its diagnostic, prognostic, and therapeutic value in comparison to standard imaging methods.
Drug: [68Ga]Ga-PentixaFor
[68Ga]Ga-PentixaFor will be administered intravenously using the recommended activity for adults which is up to 150 MBq (4 mCi) fixed dose. There is no weight adaption recommended in the literature.
Other Names:
  • CXCR4

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Diagnostic Accuracy of CXCR4-targeted [68Ga]Ga-PentixaFor PET/MR Imaging Compared to Standard of Care Imaging
Time Frame: Baseline (at initial staging)
This primary outcome will assess the diagnostic accuracy of the CXCR4-targeted [68Ga]Ga-PentixaFor PET/MR imaging in comparison to the standard 18F-FDG PET/CT and MRI imaging in newly diagnosed multiple myeloma (MM) patients. Specifically, the focus will be on the number of bone marrow myeloma manifestations detected by CXCR4 PET/MR compared to standard imaging, as well as the number of extra-osseous myeloma manifestations detected.
Baseline (at initial staging)

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Evaluating the Role of CXCR4-targeted Imaging in Treatment Decision Making Using a Questionnaire
Time Frame: Post-initial staging (before starting treatment)
Using a questionnaire, the investigators aim to evaluate how hematologists make treatment decisions based on the addition of CXCR4 PET/MR imaging influences in MM patients, including adjustments in preconditioning, evaluation for radiotherapy, decisions for or against stem cell transplantation, and changes in follow-up schedules.
Post-initial staging (before starting treatment)
Evaluating the Role of CXCR4-targeted Imaging in Response Assessment Using a Questionnaire
Time Frame: 3 months after start of participants therapy for MM
Using a questionnaire, the investigators aim to evaluate how hematologist assess how the availability of CXCR4 PET/MR affects decisions during therapy response assessment. This could include changes in imaging follow-up, supportive therapy decisions, or additional evaluations.
3 months after start of participants therapy for MM
Gather data to inform on patient selection for theranostics studies
Time Frame: Baseline (initial staging)
The investigators will collect all data measurements on imaging and disease characteristics from CXCR4 imaging and standard-of-care imaging, integrating these findings to form a comprehensive assessment of whether patients may be suitable candidates for theranostic studies
Baseline (initial staging)
Monitoring for Adverse Events Related to Radiopharmaceutical Administration
Time Frame: 6 months (from baseline to final follow-up)
Document any adverse events following the administration of the radiopharmaceutical [68Ga]Ga-PentixaFor during PET/MR imaging, including any potential side effects or safety concerns.
6 months (from baseline to final follow-up)

Collaborators and Investigators

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

Sponsor

University Health Network, Toronto

Investigators

  • Principal Investigator: Patrick Veit-Haibach, MD, University Health Network, Toronto

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)

April 22, 2025

Primary Completion (Estimated)

March 4, 2028

Study Completion (Estimated)

March 4, 2028

Study Registration Dates

First Submitted

February 27, 2025

First Submitted That Met QC Criteria

March 6, 2025

First Posted (Actual)

March 11, 2025

Study Record Updates

Last Update Posted (Estimated)

June 25, 2025

Last Update Submitted That Met QC Criteria

June 24, 2025

Last Verified

June 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 23-5828

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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.

Subscribe