99mTc-CNDG Injection in the Diagnosis of Malignant Tumors

Chinese Academy of Medical Sciences & Peking Union Medical College

Status: Enrolling

Conditions: Malignant Tumor

Treatments: Diagnostic Test: 99mTc-CNDG SPECT/CT

Study type: Interventional

Funder types: Other

Identifiers

NCT06030817

K1999

Details and patient eligibility

About

Currently, 18F-fluorodeoxyglucose (18F-FDG) is the most widely used tumor imaging agent in clinical practice. However, the production of 18F requires accelerators and is associated with relatively high diagnostic costs, which to some extent limits its widespread clinical application. In comparison to Positron Emission Tomography (PET), Single Photon Emission Computed Tomography (SPECT) devices are more abundant and offer lower diagnostic expenses. With the utilization of Cadmium Zinc Telluride (CZT) crystals in SPECT and advancements in image reconstruction techniques, the resolution and sensitivity of SPECT is continually improving. Therefore, the development of a simplified and cost-effective novel SPECT tumor imaging agent holds significant practical significance. This study involved the design and synthesis of a glucose-derived ligand with a linker containing seven methylene units and an isonitrile group (CN7DG). The CN7DG ligand was labeled with 99mTc to prepare a more lipophilic 99mTc-CN7DG complex, aiming to investigate a novel SPECT imaging agent for tumor imaging.

Enrollment: 100 estimated patients

Sex: All

Ages: 18 to 70 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• 18-70 years old
• Patients diagnosed with malignant glioma, colorectal cancer, pancreatic cancer, lung cancer, breast cancer, or other malignant tumors through imaging techniques such as MRI, CT, and ultrasound, and who are scheduled for surgical resection or biopsy
• Solid tumor sizes greater than 2cm
• Voluntarily agree to participate and sign an informed consent form
• Can provide complete surgical records, pathological results, control data, and clinical follow-up results

Exclusion criteria

• Pre-treatment such as chemotherapy and targeted therapy has been administered
• Pregnancy and breastfeeding
• Claustrophobia
• The condition is severe and difficult to cooperate with
• Unable to obtain relevant control imaging data and clinical information

Trial design

Primary purpose: Diagnostic

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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100 participants in 1 patient group

99mTc-CNDG SPECT/CT

Experimental group

Description:

Inject 99mTc-CNDG and then perform SPECT/CT scan.

Treatment:

Diagnostic Test: 99mTc-CNDG SPECT/CT