Description Module
The Description Module contains narrative descriptions of the clinical trial, including a brief summary and detailed description. These descriptions provide important information about the study's purpose, methodology, and key details in language accessible to both researchers and the general public.
Description Module path is as follows:
Study -> Protocol Section -> Description Module
Description Module
Ignite Creation Date:
2025-12-25 @ 2:38 AM
Ignite Modification Date:
2025-12-25 @ 2:38 AM
NCT ID:
NCT06318234
Brief Summary:
This project aims to evaluate the role of 18F-FAPI combined with 18F-FDG PET/MRI imaging in quantitatively and accurately evaluating the grading of rectal cancer after SCRT neoadjuvant therapy in patients with advanced rectal cancer as the research object, with postoperative histopathological analysis as the reference index, and to assess the ability of patients to achieve pCR. A diagnostic model and evaluation system will also be constructed.
Detailed Description:
1. Correlation analysis between the expression levels of FAP and GLUT1 and the degree of tumor regression in rectal cancer
The study focuses on patients with advanced rectal cancer treated with SCRT neoadjuvant therapy, and conducts immunohistochemical staining of FAP and GLUT1 (glucose transporter 1) on postoperative specimens to evaluate histopathological changes related to the degree of rectal cancer tumor regression. The expression levels of FAP and GLUT1 and the grading of tumor regression are quantitatively analyzed, and their correlation is analyzed to explore the correlation between the expression levels of FAP and GLUT1 in the lesions of neoadjuvant therapy patients and the degree of tumor regression.
2. Construction and validation of a diagnostic model for the degree of tumor regression in rectal cancer after neoadjuvant therapy using 18F-FAPI combined with 18F-FDG PET/MRI imaging
The patient underwent preoperative 18F-FAPI and 18F-FDG PET/MRI imaging, followed by immunohistochemical staining of FAP and GLUT1 on postoperative specimens and evaluation of histopathological changes related to the degree of rectal cancer tumor regression. The patient's uptake of 18F-FAPI and 18F-FDG (SUVmax, SUVmean, SUVpeak, FAPI metabolic volume, MTV, TBR, TLG), expression levels of FAP and GLUT1, and degree of tumor regression were quantitatively analyzed, and the correlation between the patient's uptake of 18F-FAPI and 18F-FDG and the degree of tumor regression was explored. A graded diagnostic model and evaluation system were constructed to verify their effectiveness.
3. Comparison of the efficacy of PET/MR-TRG and MR-TRG in assessing pTRG after neoadjuvant therapy for rectal cancer
Compare the constructed PET/MR tumor regression grading diagnostic model with the commonly used clinical imaging diagnostic method MRI in evaluating the efficacy, pTRG, and pCR of neoadjuvant therapy for rectal cancer.
Study:
NCT06318234
Study Brief:
Protocol Section:
NCT06318234