Trial Parameters
Eligibility Fast-Check
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Brief Summary
The objective of the study is to constrcut a noninvasive approach WL12 PET/CT to detect the PD-L1 expression of tumor lesions in patients with gastrointestinal tumors and to identify patients benefiting from anti-PD-1/L1 treatment.
Eligibility Criteria
Inclusion Criteria: * 1\. Aged \>18 years old; ECOG 0 or 1; * 2\. Patients with Gastrointestinal tumors; * 3\. Has at least one measurable target lesion according to Response Evaluation Criteria in Solid Tumors (RECIST V1.1); * 4\. life expectancy \>=12 weeks. Exclusion Criteria: * 1\. Significant hepatic or renal dysfunction; * 2\. Is pregnant or ready to pregnant; * 3\. Cannot keep their states for half an hour; * 4\. Refusal to join the clinical study; * 5\. Suffering from claustrophobia or other mental diseases; * 6\. Any other situation that researchers think it is not suitable to participate in the experiment.