Zr-89 Crefmirlimab Berdoxam and Immuno-Positron Emission Tomography for the Imaging of Patients With Resectable Brain Tumors

A vizsgálat adatai

Ki végzi

Jonsson Comprehensive Cancer Center

Azonosító

NCT06650163

A regiszteradat frissítve

2026. február 5.

Eredeti leírás

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.A teljes eredeti leírásKevesebb

Biologic Validation of Zr-89 Crefmirlimab Berdoxam CD8+ Minibody ImmunoPET in Human Brain Tumors

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.

Bevonási feltételek: 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.

Kizáró feltételek: Not medically cleared for surgery; 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; 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; Male or female < 18 years of age; Individuals who cannot tolerate MRI scan or PET/CT scan; Pregnant or breast-feeding women; Patients with splenic dysfunction or post splenectomy; Any abnormalities that would be a contraindication to gadolinium-based contrast agent.

ClinicalTrials.gov NCT06650163