RECRUITING Phase 1 ClinicalTrials.gov

Imaging Study of [89Zr]DFO-YS5 for Detecting CD46 Positive Malignancy in Multiple Myeloma

Sponsor: Robert Flavell, MD, PhD • ClinicalTrials.gov ID: NCT05892393

Registry updated: 2026-09-16

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Description

This phase I trial tests the safety of \[89Zr\]DFO-YS5 positron emission tomography (PET) imaging and how well it works to detect CD46 positive cancer cells in patients with multiple myeloma. \[89Zr\]DFO-YS5 is an imaging agent called a radiopharmaceutical tracer. A radiopharmaceutical tracer uses a small amount of radioactive material that is injected into a vein to help image different areas of the body. \[89Zr\]DFO-YS5 targets a specialized protein called CD46, which is in certain multiple myeloma cancer cells, and \[89Zr\]DFO-YS5 PET scans may improve detection of multiple myeloma.

Interventions

Zirconium Zr 89-DFO-YS5 (Drug)
Given IV
Positron Emission Tomography / Computed Tomography (PET/CT) (Procedure)
Positron emission tomography-computed tomography is a nuclear medicine technique which combines, in a single gantry, a positron emission tomography scanner and an x-ray computed tomography scanner, to acquire sequential images from both devices in the same session, which are combined into a single superposed image
Positron Emission Tomography / Magnetic Resonance Imaging (PET/MRI) (Procedure)
Positron emission tomography-magnetic resonance imaging is a hybrid imaging technology that incorporates magnetic resonance imaging soft tissue morphological imaging and positron emission tomography functional imaging.
Fludeoxyglucose F-18 (Other)
Given IV

Eligibility criteria

Inclusion Criteria: * Participants must have histologically or cytologically confirmed multiple myeloma by International Myeloma Working Group (IMWG) diagnostic criteria * At least one positive myelomatous lesion found on 18F-FDG PET/CT or PET/MRI. A positive lesion is defined as uptake greater than liver on FDG PET, based on the Italian myeloma criteria for PET use (IMPeTUs) criteria * Age \>= 18 years * Total bilirubin =\< 1.5 X institutional upper limit of normal (ULN) * Aspartate aminotransferase (AST) =\< 3 X ULN * Alanine aminotransferase (ALT) =\< 3 X ULN * Creatinine clearance \>= 30 mL/min, calculated using the Cockcroft-Gault equation or serum creatinine \<= 1.5x the institutional upper limit of normal. * Ability to understand a written informed consent document, and the willingness to sign it Exclusion Criteria: * Any condition that, in the opinion of the principal investigator, would impair the participants' ability to comply with study procedures or interfere with the safety of the investigational regimen * Individuals who are pregnant or breastfeeding/chestfeeding. * \- Breast-feeding/chest-feeding should be discontinued before administration of \[89ZR\]DFO-YS5. * Females of childbearing potential must have a negative urine or serum pregnancy test (i.e., human chorionic gonadotropin test) within 72 hours prior to administration of \[89ZR\]-DFO-YS5. * \- If the urine pregnancy test is positive or equivocal, a confirmatory serum pregnancy test is required. In such cases, the individual must be excluded from participation if the serum pregnancy result is positive. * \- A female is considered to be of childbearing potential (regardless of sexual orientation, having undergone a tubal ligation, or remaining celibate by choice), unless it is documented that the individual meets either of the following two criteria: (1) has reached a postmenopausal state ( \>= 12 continuous months of amenorrhea with no identified cause other than menopause); or (2) has undergone surgical sterilization (i.e., hysterectomy and/or bilateral oophorectomy for removal of uterus and/or ovaries). * Individuals who are pregnant or breastfeeding/chestfeeding are excluded because there is an unknown but potential risk for adverse effects in the unborn/nursing child secondary to treatment of the study participant with \[89ZR\]-DFO-YS5

Conditions

Multiple Myeloma Plasma Cell Myeloma

Locations

University of California, San Francisco — San Francisco, California, United States

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Official Source

Data sourced from ClinicalTrials.gov, a service of the U.S. National Institutes of Health.

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