NCT06389786 · Mayo Clinic
Accuracy of 18F-rhPSMA-7.3 PET/ MRI for Prediction of Lymph Node Metastasis in Localized High-Risk Prostate Cancer
What this study is about
This clinical trial evaluates the use of an imaging scan (18F-rhPSMA-7.3 positron emission tomography \[PET\]/magnetic resonance imaging \[MRI\]) for identifying patients who are at risk of having their disease spread to the lymph nodes in those undergoing radical prostatectomy for prostate cancer that has not spread to other parts of the body (localized).
View original scientific description
This clinical trial evaluates the use of an imaging scan (18F-rhPSMA-7.3 positron emission tomography \[PET\]/magnetic resonance imaging \[MRI\]) for identifying patients who are at risk of having their disease spread to the lymph nodes in those undergoing radical prostatectomy for prostate cancer that has not spread to other parts of the body (localized). Prostate specific membrane antigen (PSMA) PET/computed tomography (CT) has emerged as an option to stage newly diagnosed high risk prostate cancer patients. PSMA PET/CT has demonstrated improved diagnostic accuracy for identifying metastasis. PET is procedure in which a small amount of radioactive glucose (sugar) is injected into a vein, and a scanner is used to make detailed, computerized pictures of areas inside the body where the glucose is used. Because cancer cells often use more glucose than normal cells, the pictures can be used to find cancer cells in the body. MRI is procedure in which radio waves and a powerful magnet linked to a computer are used to create detailed pictures of areas inside the body. These pictures can show the difference between normal and diseased tissue. This study may help researchers learn whether 18F-rhPSMA-7.3 PET/ MRI may improve predicting which patients are at risk of lymph node metastases and who are suitable candidates for pelvic lymph node dissection in patients with localized high-risk prostate cancer undergoing radical prostatectomy.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Male subjects ≥ 30 and ≤ 85 years old
- Primary diagnosis of prostate cancer selected for surgical intervention (radical prostatectomy with extended lymph node dissection)
- Primary diagnosis of untreated American Urological Association (AUA) guidelines high-risk localized prostate cancer, hormone-naïve prostate cancer via contrast enhanced prostate MRI + tissue sampling
- Planned elective radical prostatectomy with extended pelvic lymph node dissection
- Clinical oligometastatic disease with ≤ 3 nodes positive on preoperative standard of care imaging of prostate region within 6 months of surgery
- Patient agrees to comply with the investigator instructions
- Patient agrees to comply with the follow-up surveillance schedule
- Have ability to provide full written consent
Exclusion criteria
- High-risk cancer planned for neoadjuvant therapy
- Patients with a history of more than two weeks treatment with immunosuppressants (including systemic corticosteroids), cytotoxic chemotherapy within one month prior to initial screening, or who receive such medications during the screening period, or who are anticipated to require such medications during the course of the study
- Patients that have had prior hormonal therapy such as Lupron or oral antiandrogens ≤ 12 weeks prior to registration
- Clinical oligometastatic disease with \> 3 nodes positive preoperative standard of care imaging of prostate region
- Previous history of pelvic radiation
- Patients with obesity defined as body mass index (BMI) \> 40 kg/m\^2
- History of prior laparoscopic inguinal hernia repair with mesh
- Scheduled at the time of screening to undergo chemotherapy, radiation, hormone therapy, or open surgery during the study period
- Inability to lie still for 75 minutes during 18F-rhPSMA-7.3 PSMA PET-MRI imaging
- Any neurologic disorder or psychiatric disorder that might confound postsurgical assessments
- Has any condition(s), which seriously compromises the subject's ability to participate in this study, sign consent, or has a known history of poor adherence with medical treatment
- Received administration of an investigational drug within 30 days prior to study registration, and/or has planned administration of another investigational product or procedure during participation in this study
Where
- Jacksonville, Florida
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Apr 6, 2026 · Source of record for eligibility and locations