99mTc-CNDG Injection in the Diagnosis of Malignant Tumors

Peking Union Medical College Hospital100 enrolled

Overview

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.

Study Type

INTERVENTIONAL

Allocation

Purpose

DIAGNOSTIC

Masking

NONE

Enrollment

100

Conditions

Malignant Tumor

Interventions

Eligibility

Sex: ALLMin age: 18 YearsMax age: 70 Years

Medical Language ↔ Plain English

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

Outcomes

Primary Outcomes

Uptake value of 99mTc-CNDG in malignant tumors

The uptake value was measured in the malignant lesions on 99mTc-CNDG SPECT/CT.

Time frame: through study completion, an average of 1 year

Lesions detected by 99mTc-CNDG SPECT/CT

The number of target lesions was calculated by 99mTc-CNDG SPECT/CT

Time frame: through study completion, an average of 1 year

Compared with 18F-FDG PET/CT or CECT

The number of lesions detected by 99mTc-CNDG SPECT/CT was compared with 18F-FDG PET/CT or CECT

Time frame: through study completion, an average of 1 year

99mTc-CNDG Injection in the Diagnosis of Malignant Tumors

Overview

Conditions

Interventions

Eligibility

Locations (1)

Outcomes

Primary Outcomes

Central Contacts