- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT06284070
Application of FAPI and FDG PET Imaging in Patients With Different Types of Cancer
February 21, 2024 updated by: Xiao Chen, Daping Hospital and the Research Institute of Surgery of the Third Military Medical University
Cancer associated fibroblasts (CAFs) can promote tumor cell proliferation, migration, invasion, and angiogenesis through immunosuppressive effects and the production of mediators, thereby promoting tumor growth and progression.
The characteristic of CAFs is high expression of fibroblast activation protein (FAP).
In approximately 90% of epithelial derived tumors, FAP is highly overexpressed on the membrane of CAFs.
Contrary to CAFs, FAP expression is lower or absent in normal tissues.
Therefore, FAP inhibitors (FAPI) targeting FAP can overcome the limitations of 18F-2-fluoro.2-deoxy-D-glucose
fluorodeoxyglucose(18F-FDG) PET imaging.
But like 18F-FDG, wound healing, fibrosis, and inflammation can also uptake FAPI.. Therefore, a comparison of the performance of 18F-FDG and 18F-FAPI PET imaging in diagnosing primary and metastatic lesions of various types of cancer is conducted to evaluate the potential value of these new radiopharmaceuticals as effective alternatives to 18F-FDG, highlighting their advantages and limitations.
Study Overview
Status
Recruiting
Conditions
Detailed Description
This study is a prospective, single study and has been approved by the ethics committee. The subjects of this studywere from January 1,2024 to December 31, 2029.The detailed description is as follows:
- Patients: The subjects we selected are adults who are not restricted by gender. For details, please refer to the "Eligibility Criteria" column.
- Clinical data collection: Record the course of disease, laboratory tests (tumor markers, inflammatory markers), PET examinations, and follow-up related imaging (ultrasound, CT, or magnetic resonance imaging(MRI)) information of all patients.
- CT or MRI image analysis: Record the location and number of lesions, measure the long diameter of the primary and metastatic lesions, and the short diameter of lymph nodes on CT or MRI images.
- PET image analysis: Record and evaluate the following indicators: the maximum, mean and peak standardized uptakevalue (SUVmax, SUVmean and SUVpeak), Metabolic lesion volume (MLV), total lesion glycolysis (TLG).
- Statistical analysis: Use descriptive statistical methods to compare the age of patients and the standardized uptake values of FDG and FAPI. Normal distribution data is represented as mean ± standard deviation, while non normal distribution data is represented as median with IQR. Compare the normal distribution data between two groups using paired two sample t-test, and compare the non normal distribution data between two groups using McNemar test. Using a four grid table McNemar χ Compare the diagnostic efficacy of 18F-FDG PET and 18F-FAPI PET through 2 tests, calculate and compare the sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of 18F-FDG and 18F-FAPI PET. Due to the potential impact of tumor type on diagnosis, subgroup analysis was conducted on the diagnostic efficacy of 18F-FDG PET and 18F-FAPI PET. Due to the possibility of multiple metastatic lesions in a given participant, the diagnostic results may be correlated within the participant. Therefore, sensitivity analysis of metastatic lesions is also performed based on a generalized linear mixed effects model by combining this correlation between different lesions within the same participant. Double tailed P<0.05 indicates a statistically significant difference.
Study Type
Observational
Enrollment (Estimated)
2000
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: Xiao Chen, Ph.D
- Phone Number: 15922970174
- Email: xiaochen229@foxmail.com
Study Locations
-
-
Chongqing
-
Chongqing, Chongqing, China, 400010
- Recruiting
- Department of Nuclear Medicine, Daping Hospital of Army Medical University
-
Contact:
- Xiao Chen, Ph.D
- Phone Number: 15922970174
- Email: xiaochen229@foxmail.com
-
Principal Investigator:
- Xiao Chen, Ph.D
-
Principal Investigator:
- Jinju Sun, MSc
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
- Adult
- Older Adult
Accepts Healthy Volunteers
No
Sampling Method
Probability Sample
Study Population
The subjects we selected are adults who are not restricted by gender.
For details, please refer to the "EligibilityCriteria" colymn.
Description
Inclusion Criteria:
- Adult patients (≥ 18 years old);
- Suspected or newly diagnosed malignant tumor patients;
- Patients who underwent 18F-FDG and 18F-FAPI PET scans within one week;
- Patients who are able to provide informed consent forms (signed by participants, parents, or legal representatives) and consent forms in accordance with the guidelines of the Clinical Research Ethics Committee.
Exclusion Criteria:
- Pregnant women;
- Scanned images with poor image quality due to factors such as body movement;
- Patients with mental illness or other unsuitable conditions for examination, poor compliance, etc.
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Diagnostic efficacy
Time Frame: Completed within half year after end of the study
|
The sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and accuracy of 18F-FDG and 18F-FAPI PET were calculated and compared to evaluate the diagnostic efficacy.
|
Completed within half year after end of the study
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
SUV
Time Frame: Completed within one week after PET examination
|
Standardized uptake value (SUV) of 18F-FDG and 18F-FAPI for each target lesion of subject or suspected primary tumor or/and metastasis.
|
Completed within one week after PET examination
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
January 1, 2024
Primary Completion (Estimated)
December 31, 2029
Study Completion (Estimated)
December 31, 2029
Study Registration Dates
First Submitted
February 21, 2024
First Submitted That Met QC Criteria
February 21, 2024
First Posted (Actual)
February 28, 2024
Study Record Updates
Last Update Posted (Actual)
February 28, 2024
Last Update Submitted That Met QC Criteria
February 21, 2024
Last Verified
February 1, 2024
More Information
Terms related to this study
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
NO
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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