PET/MR with a CXCR4 tracer versus standard PET/CT and MRI for initial staging and follow-up in multiple myeloma
Official title: [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
Run by University Health Network, Toronto · NCT06871176 · Data updated 2026-11-12
This test will see if a PET/MR scan using a new tracer called [68Ga]Ga-PentixaFor finds multiple myeloma in bones more accurately than standard PET/CT and MRI for adults at diagnosis or follow-up.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 30 (estimated) |
| Sponsor | University Health Network, Toronto Academic / other |
| Locations | 1 site (Toronto, Ontario) |
| Status | Recruiting |
| Started | April 22, 2025 |
| Main results expected | March 4, 2028 |
| Study ends | March 4, 2028 |
| Registry record updated | October 1, 2026 |
| Trial ID | NCT06871176 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults (18+) with a clinical diagnosis of multiple myeloma—including nonsecretory, oligosecretory, or suspected extramedullary disease—who are newly diagnosed or undergoing staging/follow-up and can tolerate MRI and PET/CT are ideal candidates.
✕Probably not a fit
Patients who are pregnant or breastfeeding, unable to lie still for imaging, have contraindications to MRI or PET/CT or known allergy to the tracer components, or have another active hematologic malignancy are unlikely to be eligible or to benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This interventional study compares a combined PET/MR scan using the CXCR4-targeted tracer [68Ga]Ga-PentixaFor to standard 18F-FDG PET/CT and conventional MRI in people with multiple myeloma. Participants (adults, newly diagnosed or being evaluated around stem cell transplantation) will undergo both imaging approaches for initial staging and follow-up. Investigators will compare lesion detection, diagnostic accuracy, prognostic information, and the frequency with which imaging influences treatment decisions. The aim is to see whether CXCR4 PET/MR gives more precise disease mapping and could reduce the need for multiple separate imaging sessions.
Why it matters
Potential benefit: If successful, this imaging approach could detect bone and extramedullary myeloma more precisely, improve staging and treatment planning, and reduce the number of separate scans patients need.
How similar studies have gone: CXCR4-targeted PET imaging such as [68Ga]Ga-PentixaFor is a relatively new but promising approach with preliminary studies showing improved lesion detection in some myeloma patients, though it is not yet as widely validated as 18F-FDG PET/CT.
Who can join: the full rules
Show full inclusion / exclusion criteria
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)
Where it's running
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University Health Network
Toronto, Ontario, Canada Recruiting
Study contacts
- Principal investigator: Patrick Veit-Haibach, MD — University Health Network, Toronto
- Study coordinator: Patrick Veit-Haibach, MD
- Email: Patrick.Veit-Haibach@uhn.ca
- Phone: 416-340-4800 Ext. 6085
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.