Zr-89 Crefmirlimab Berdoxam and Immuno-Positron Emission Tomography for the Imaging of Patients With Resectable Brain Tumors
Biologic Validation of Zr-89 Crefmirlimab Berdoxam CD8+ Minibody ImmunoPET in Human Brain Tumors
5 other identifiers
interventional
20
1 country
1
Brief Summary
This phase I trial studies how well zirconium (Zr)-89 crefmirlimab berdoxam and immuno-positron emission tomography (PET) identifies areas of immune cell activity in patients with brain tumors that can be removed by surgery (resectable). One important predictor of the immune response is the presence and change in CD8 positive (+) tumor infiltrating lymphocytes (TIL) cells. Identifying the presence and changes in CD8+ cells can be challenging, particularly for participants with central nervous system (CNS) tumors, and usually requires invasive procedures such as repeat tissue biopsies, which may not accurately represent the immune status of the entire tumor. Zr-89 crefmirlimab berdoxam is known as a radioimmunoconjugate which consists of a radiolabeled anti-CD8+ minibody whose uptake can be imaged with PET. Upon administration, Zr 89 crefmirlimab berdoxam specifically targets and binds to the CD8+ cells. This enables PET imaging and may detect CD8+ T-cell distribution and activity and may help determine the patient's response to cancer immunotherapeutic agents more accurately. Giving Zr-89 crefmirlimab berdoxam along with undergoing immuno-PET imaging may work better at identifying immune cell activity in patients with resectable brain tumors.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_1
Started Dec 2024
Typical duration for phase_1
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 17, 2024
CompletedFirst Posted
Study publicly available on registry
October 21, 2024
CompletedStudy Start
First participant enrolled
December 5, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 31, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
January 31, 2028
February 5, 2026
February 1, 2026
2.2 years
October 17, 2024
February 3, 2026
Conditions
Outcome Measures
Primary Outcomes (2)
Incidence of adverse events
Analyses will be examined graphically and summarized by descriptive statistics. Data transformation may be applied to quantitative variables prior to analyses if deemed necessary.
Up to 1 month
Zirconium (Zr)-89 crefmirlimab berdoxam uptake
Will be determined by standardized uptake value-based quantitative measures relative to CD8+ tumor infiltrating lymphocytes density determined by immunohistochemistry from tumor biopsy samples. Analyses will be examined graphically and summarized by descriptive statistics. Data transformation may be applied to quantitative variables prior to analyses if deemed necessary. Will correlate immuno-positron emission tomography uptake with cytotoxic T-cell density across all tumor samples. Multivariate cox and log rank tests will be used to compare survival outcomes.
Up to 24 hours
Study Arms (1)
Treatment (Zr-89 crefmirlimab berdoxam + ImmunoPET)
EXPERIMENTALPatients receive Zr-89 crefmirlimab berdoxam IV over 5-10 minutes 3 days prior to scheduled surgical resection. Approximately 24 hours after receiving Zr-89 crefmirlimab berdoxam, patients undergo immuno-PET scans. Patients then undergo scheduled standard of care surgical resection of the brain tumor and brain biopsy. Additionally, patients undergo advanced physiologic and metabolic MRI and MRI prior to surgery.
Interventions
Undergo advanced MRI
Undergo stereotactic image-guided biopsy
Undergo Zirconium Zr 89 Crefmirlimab Berdoxam PET
Ancillary studies
Undergo immuno-PET
Undergo MRI
Eligibility Criteria
You may qualify if:
- Male or female \>= 18 years of age
- Documentation of a diagnosis of brain tumor including brain metastases, any grade of gliomas and meningiomas
- The participant is scheduled for standard of care surgical tumor resection
- The participant (or legally acceptable representative if applicable) provides written informed consent for the trial
You may not qualify if:
- Male or female \< 18 years of age
- Presence of a condition or abnormality that in the opinion of the Investigator would compromise the safety of the patient or the quality of the data
- Not medically cleared for surgery
- Individuals who cannot tolerate MRI scan or PET/CT scan
- Pregnant or breast-feeding women
- Serum creatinine OR measured or calculated creatinine clearance (Glomerular filtration rate \[GFR\] can be use in place of creatinine or creatinine clearance \[CrCl\]) =\< 1.5 X institutional upper limit of normal (ULN) OR \>= 60mL/min for subjects with creatinine levels \> 1.5 X institutional ULN
- Creatinine clearance should be calculated per institutional standard
- Serum total bilirubin: =\< 1.5 X institutional ULN OR direct bilirubin =\< institutional ULN for subjects with total bilirubin levels \> 1.5 institutional ULN
- Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase \[SGOT\]) and alanine aminotransferase (ALT) (serum glutamic pyruvic transaminase \[SGPT\]) =\< 2.5 X institutional ULN OR =\< 5 X institutional ULN for subjects with Gilberts syndrome
- Albumin \>= 2.5 mg/dL
- Patients with splenic dysfunction or post splenectomy
- Any abnormalities that would be a contraindication to gadolinium-based contrast agent
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
UCLA / Jonsson Comprehensive Cancer Center
Los Angeles, California, 90095, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Robert M Prins
UCLA / Jonsson Comprehensive Cancer Center
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NA
- Masking
- NONE
- Purpose
- DIAGNOSTIC
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 17, 2024
First Posted
October 21, 2024
Study Start
December 5, 2024
Primary Completion (Estimated)
January 31, 2027
Study Completion (Estimated)
January 31, 2028
Last Updated
February 5, 2026
Record last verified: 2026-02