This is a prospective, open-label Phase 3 study to evaluate copper Cu 64 PSMA I\&T injection for PET/CT imaging in patients with newly diagnosed unfavorable intermediate high-risk, high-risk or very high-risk prostate cancer.
The study will include approximately 323 patients with newly diagnosed unfavorable intermediate high-risk, high-risk or veru high-risk prostate cancer electing to undergo radical prostatectomy with pelvic lymph node dissection. Each patient will be administered an 8 mCi (± 10 percent) intravenous dose of copper Cu 64 PSMA I\&T injection. PET/CT imaging will be acquired for all patients at 1-4 hours ± 15 minutes post copper Cu 64 PSMA I\&T injection. The PET/CT images will be interpreted independently by three readers blinded to all patient information. Each patient study will be assessed and scored for the detection of lesions considered positive for Prostate Cancer (PC) in pelvic lymph nodes. Positive lesions in the prostate, extra pelvic lymph nodes, bones and soft tissue/viscera will also be recorded. Analysis of the reads will be used for determination of sensitivity and specificity of copper Cu 64 PSMA I\&T PET/CT by comparison to the reference standard of histopathology after matching by hemipelvis with at least one true positive lesion defining a true positive patient. Detection of PC outside the pelvis on the copper Cu 64 PSMA I\&T PET/CT will be assessed using reference standard of histopathology and if not available conventional imaging. Baseline conventional imaging will be reviewed for PC disease or no disease by independent radiology readers.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Enrollment
323
Radiopharmaceutical PET imaging tracer injected intravenously for staging of prostate cancer.
Sensitivity
Determine the presence of metastatic pelvic lymph nodes relative to histopathology reference standard. At least one positive pelvic lymph node on the PET scan and one positive lymph node as determined by histopathology on the same side of the pelvis (left or right) will be counted a true positive at the patient level.
Time frame: 4 Hours
Specificity
Determine the absence of metastatic pelvic lymph nodes relative to histopathology reference standard. Negative pelvic lymph node on the PET scan and negative pelvic lymph nodes as determined by histopathology on the same side of the pelvis (Left or Right) will be counted a true negative at the patient level.
Time frame: 4 Hours
Inter-reader and intra-reader agreement of copper Cu 64 PSMA I&T PET/CT interpretation on a per-patient basis
Reader kappa statistics of copper Cu 64 PSMA I\&T PET/CT scan interpretation by the blinded independent readers.
Time frame: 4 Hours
Incidence of adverse events in copper Cu 64 PSMA I&T injection
Treatment-emergent adverse events (AEs) will be assessed and graded using the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 5.0.
Time frame: At time of dose administration up to 72 Hours
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