Breast Tumor
Conditions
Brief summary
This is an open-label positron emission tomography/computed tomography(PET/CT) study to investigate the diagnostic performance and evaluation efficacy of 68Ga-NOTA-RM26 in breast tumor patients. 1.85 MBq per kilogram body weight of 68Ga-NOTA-RM26A will be injected intravenously. Visual and semiquantitative method will be used to assess the PET/CT images.
Detailed description
The gastrin-releasing peptide receptor (GRPR), also known as bombesin receptor subtype II (BB2), is a member of the G protein-coupled receptor family of bombesin receptors. GRPR is over-expressed in various types of human tumors including breast cancer. RM26, a GRPR antagonist with high affinity, was discovered by peptide backbone modification of bombesin analogues.To target gastrin-releasing peptide receptor in neoplastic cells of human breast cancer, peptide NOTA-RM26 was synthesized with a PEG3 linker between NOTA and RM26, and then labeled with 68Ga. An open-label whole-body PET/ CT study was designed to assess its clinical diagnostic value in patients with breast tumor.
Interventions
1.85 MBq per kilogram body weight of 68Ga-NOTA-RM26 were injected into the patients before the PET/CT scans
Sponsors
Study design
Eligibility
Inclusion criteria
* patients in suspicion of breast cancer by mammography or ultrasonography,and being able to provide basic information and sign the written informed consent form
Exclusion criteria
* The
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Standardized uptake value of 68Ga-NOTA-RM26 in breast tumor | 1 year | The semiquantitative analysis will be performed by the same person for all the cases, and the standardized uptake value (SUV) of the tracer in breast tumor will be measured. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Adverse events collection | 1 week | Adverse events within 1 week after the injection and scanning of patients and patients will be followed and assessed |
Countries
China