Clinical Application of PET Imaging Targeting GPA33 in Malignant Tumors

Summary

This study is a diagnostic study. Patients and healthy volunteers with clinically suspected or confirmed colorectal cancer, gastric cancer, pancreatic cancer and other malignant tumors with high expression of GPA33 will be recruited for PET/MR or PET/CT imaging targeting a GPA33-specific probe (in the case of \[68Ga\]Ga-NOTA-GPA33 nanobody) , to observe the reaction of volunteers and patients after injection of drugs, to evaluate the pharmacokinetics in vivo and the efficacy of diagnosis and staging, and to perform PET imaging in patients with contraindications. General information on the subjects' vital signs, clinical data, blood routine, liver and kidney functions and other biochemical indicators and other imaging data were collected, and histopathology of biopsy or surgical specimens was used as the final diagnostic criterion.

Timeline

Start

2025-10-01

Primary completion

2026-09-30

Completion

2026-12-31

Drugs

Indications