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Clinical Investigator-Initiated Trial (IIT) of PD-L1-Targeted Radionuclide Probes
Sponsor: Peking University Cancer Hospital & Institute
Summary
\[18F\]F-PDL1-3 molecular probe was used to detect the expression of PD-L1 in primary and metastatic tumors of patients with solid tumors. The heterogeneity of PD-L1 expression in the same lesion and different lesions was further evaluated, and the changes of PD-L1 expression in the course of the disease were observed. This method is helpful for the screening of patients with solid tumors with high PD-L1 expression, efficacy monitoring, and early warning of drug resistance and/or recurrence or metastasis, and ultimately achieve individualized targeted therapy of tumors
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
50
Start Date
2026-02-01
Completion Date
2027-12-31
Last Updated
2026-09-29
Healthy Volunteers
No
Conditions
Interventions
18F-FDG
participants were required to fast for more than 6 hours before examination. The prepared and qualified 18F-FDG 3.7-5.55MBq/kg was injected intravenously into the subjects. After 1 hour of rest, the subjects underwent Whole Body imaging with uEXPLORER whole-body PET/CT from the top of the head to the upper 1/3 of the thigh. Subjects were placed in the supine position and breathed calmly. The collection conditions of head and trunk were the same as above. The data were reconstructed by OSEM to obtain coronal, sagittal, and cross-sectional PET and PET/CT fusion images
[18F]F-PDL1-3
participants received intravenous \[18F\]F-PDL1-3 at a quality-control dose (1.52-2.72 MBq/kg). Whole-body imaging of the head and trunk will be performed using the United imaging uEXPLORER whole-body PET/CT scanner at 1 h, 2 h, and 3 h post-injection after the subject has rested quietly for 1 h. The scan range was from the apex of the thigh to the upper third of the thigh. Subjects requiring dynamic scanning underwent a 5-min CT scan prior to \[18F\]F-PDL1-3 injection, followed by 40 min of continuous image acquisition after injection. PET/CT static imaging was performed at 2 h and 3 h after injection. During the scan, the subject will be placed in the supine position and breathe quietly. Acquisition parameters for the head and trunk will be as described above. The data were reconstructed using the OSEM algorithm to generate coronal, sagittal, and transverse axial PET and PET/CT fusion images.
Locations (1)
Beijing Cancer hospital
Beijing, China