Prostate Cancer (Adenocarcinoma)
Conditions
Keywords
PSMA, Prostate cancer, PET imaging, mpMRI
Brief summary
68Ga-PSMA-11 is a widely used radiotracer targeting PSMA. In this study, we investigated the diagnostic efficacy of 68Ga-PSMA-11 PET imaging (PET/CT or PET/MRI) in patients with newly diagnosed, treatment-naive prostate cancer, and performed a head-to-head comparison with multi-parameter magnetic resonance imaging (mpMRI).
Detailed description
68Ga-PSMA-11 is a radiotracer targeting PSMA. Previously, multiple clinical trials have validated the clinical applications of 68Ga-PSMA-11 PET. Meanwhile, multi-parametric magnetic resonance imaging (mpMRI) still holds a dominant position in the imaging diagnosis of prostate cancer. In this study, we will further evaluate the diagnostic performance of 68Ga-PSMA-11 positron emission tomography (PET/CT or PET/MRI) in newly diagnosed and untreated prostate cancer patients, with a head-to-head comparison to mpMRI.
Interventions
DRUG68Ga-PSMA-11
Intravenous injection of 68Ga-PSMA-11 with a dosage of 111-148 MBq (3-4 mCi), followed by PET/CT or PET/MRI acquisition according to standard methods.
Sponsors
First Affiliated Hospital of Fujian Medical University
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE
Eligibility
Sex/Gender
MALE
Age
18 Years to 80 Years
Healthy volunteers
No
Inclusion criteria
* Biopsy-confirmed adenocarcinoma of the prostate. * No anti-tumor treatment received prior to the PET imaging. * Subjects provide signed informed consent and confirm that they are able and willing to comply with all protocol requirements. * Radical prostatectomy scheduled within 28 days after PET imaging
Exclusion criteria
* Patients with other malignant tumors * Subjects with any medical condition or other circumstance that, in the opinion of the investigator, compromise obtaining reliable data, achieving study objectives, or completion.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Sensitivity of 68Ga-PSMA-11 Imaging to Detect Intraprostatic Tumors Relative to Histopathology in newly diagnosed, treatment-naive Prostate Cacner Participants | Within 28 days of imaging, radical prostatectomy will occur. | Using histopathology from radical prostatectomy as the reference standard, validate the true positive detection rate of PET for prostate lesions. Two experienced nuclear medicine physicians, blinded to all other imaging and clinical history of the patients, independently assessed the PET images. Any disagreements were resolved by consensus. |
| Specificity of 68Ga-PSMA-11 PET Imaging to Detect Intraprostatic Tumors Relative to Histopathology in newly diagnosed, treatment-naive Prostate Cacner Participants | Within 28 days of imaging, radical prostatectomy will occur. | Using histopathology from radical prostatectomy as the reference standard, validate the true negative detection rate of PET for prostate lesions. Two experienced nuclear medicine physicians, blinded to all other imaging and clinical history of the patients, independently assessed the PET images. Any disagreements were resolved by consensus. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Comparison of Detection Rates for Intraprostatic Tumors Between 68Ga-PSMA-11 PET Imaging and mpMRI | Within 1-2 hours of 68Ga-PSMA-11 dosing, a whole body PET scan will be taken | The number of intraprostatic lesions detected on imaging will be determined by each of independent readers. The sum of lesions per participant per tissue type and overall will be computed for each participant based on each reader's lesion count. This will be calculated from the 68Ga-PSMA-11 PET scan results as well as the mpMRI results. |
Countries
China
Contacts
Primary ContactWeibing Miao, MD
Backup ContactGuochang Wang, MD
Outcome results
None listed