Trial Outcomes & Findings for Optimizing Timing of rhPSMA-7.3 (18F) for Assessing Site(s) of Recurrent Disease Following Radical Prostatectomy (NCT NCT05678322)

Men will be eligible for the study when their post-prostatectomy PSA level is initially observed to be PSA \>0.2ng/ml. All participants will receive a baseline rhPSMA-7.3 (18F) MRI scan within a month of enrollment, and the second rhPSMA-7.3 (18F) scan will be performed within a year of the initial scan. Only those participants with rhPSMA-7.3 (18F) identifiable disease during the initial scan will be offered salvage intervention per standard of care. All participants with a negative initial rhPSMA-7.3 (18F) scan will undergo a second scan when the PSA\> 0.5 ng/ml or one year after the initial PET scan. The salvage intervention will be at the discretion of the investigator. 18F-Labeled Positron Emission Tomography (PET) Diagnostic Agent: Under development for the diagnosis of prostate cancer by Blue Earth Diagnostics. rhPSMA-7.3 (18F) will be administered intravenously as a single-dose injection. The molecular structure of the drug substance comprises a prostate-specific membrane antigen (PSMA) binding motif, a peptide spacer, an 18F-radiolabeled silicon fluoride acceptor moiety and a gallium chelator complex. PET MRI Imaging: rhPSMA-7.3 (18F) PET MRI imaging will be conducted once at baseline and a second time within one year of the initial scan.

Men will be eligible for the study when their post-prostatectomy PSA level is initially observed to be PSA \>0.2ng/ml. All participants will receive a baseline rhPSMA-7.3 (18F) MRI scan within a month of enrollment, and the second rhPSMA-7.3 (18F) scan will be performed within a year of the initial scan. Only those participants with rhPSMA-7.3 (18F) identifiable disease during the initial scan will be offered salvage intervention per standard of care. All participants with a negative initial rhPSMA-7.3 (18F) scan will undergo a second scan when the PSA\> 0.5 ng/ml or one year after the initial PET scan. The salvage intervention will be at the discretion of the investigator. 18F-Labeled Positron Emission Tomography (PET) Diagnostic Agent: Under development for the diagnosis of prostate cancer by Blue Earth Diagnostics. rhPSMA-7.3 (18F) will be administered intravenously as a single-dose injection. The molecular structure of the drug substance comprises a prostate-specific membrane antigen (PSMA) binding motif, a peptide spacer, an 18F-radiolabeled silicon fluoride acceptor moiety and a gallium chelator complex. PET MRI Imaging: rhPSMA-7.3 (18F) PET MRI imaging will be conducted once at baseline and a second time within one year of the initial scan.

n=24 Participants

Men will be eligible for the study when their post-prostatectomy PSA level is initially observed to be PSA \>0.2ng/ml. All participants will receive a baseline rhPSMA-7.3 (18F) MRI scan within a month of enrollment, and the second rhPSMA-7.3 (18F) scan will be performed within a year of the initial scan. Only those participants with rhPSMA-7.3 (18F) identifiable disease during the initial scan will be offered salvage intervention per standard of care. All participants with a negative initial rhPSMA-7.3 (18F) scan will undergo a second scan when the PSA\> 0.5 ng/ml or one year after the initial PET scan. The salvage intervention will be at the discretion of the investigator. 18F-Labeled Positron Emission Tomography (PET) Diagnostic Agent: Under development for the diagnosis of prostate cancer by Blue Earth Diagnostics. rhPSMA-7.3 (18F) will be administered intravenously as a single-dose injection. The molecular structure of the drug substance comprises a prostate-specific membrane antigen (PSMA) binding motif, a peptide spacer, an 18F-radiolabeled silicon fluoride acceptor moiety and a gallium chelator complex. PET MRI Imaging: rhPSMA-7.3 (18F) PET MRI imaging will be conducted once at baseline and a second time within one year of the initial scan.

n=24 Participants

Men will be eligible for the study when their post-prostatectomy PSA level is initially observed to be PSA \>0.2ng/ml. All participants will receive a baseline rhPSMA-7.3 (18F) MRI scan within a month of enrollment, and the second rhPSMA-7.3 (18F) scan will be performed within a year of the initial scan. Only those participants with rhPSMA-7.3 (18F) identifiable disease during the initial scan will be offered salvage intervention per standard of care. All participants with a negative initial rhPSMA-7.3 (18F) scan will undergo a second scan when the PSA\> 0.5 ng/ml or one year after the initial PET scan. The salvage intervention will be at the discretion of the investigator. 18F-Labeled Positron Emission Tomography (PET) Diagnostic Agent: Under development for the diagnosis of prostate cancer by Blue Earth Diagnostics. rhPSMA-7.3 (18F) will be administered intravenously as a single-dose injection. The molecular structure of the drug substance comprises a prostate-specific membrane antigen (PSMA) binding motif, a peptide spacer, an 18F-radiolabeled silicon fluoride acceptor moiety and a gallium chelator complex. PET MRI Imaging: rhPSMA-7.3 (18F) PET MRI imaging will be conducted once at baseline and a second time within one year of the initial scan.

n=15 Participants

Men will be eligible for the study when their post-prostatectomy PSA level is initially observed to be PSA \>0.2ng/ml. All participants will receive a baseline rhPSMA-7.3 (18F) MRI scan within a month of enrollment, and the second rhPSMA-7.3 (18F) scan will be performed within a year of the initial scan. Only those participants with rhPSMA-7.3 (18F) identifiable disease during the initial scan will be offered salvage intervention per standard of care. All participants with a negative initial rhPSMA-7.3 (18F) scan will undergo a second scan when the PSA\> 0.5 ng/ml or one year after the initial PET scan. The salvage intervention will be at the discretion of the investigator. 18F-Labeled Positron Emission Tomography (PET) Diagnostic Agent: Under development for the diagnosis of prostate cancer by Blue Earth Diagnostics. rhPSMA-7.3 (18F) will be administered intravenously as a single-dose injection. The molecular structure of the drug substance comprises a prostate-specific membrane antigen (PSMA) binding motif, a peptide spacer, an 18F-radiolabeled silicon fluoride acceptor moiety and a gallium chelator complex. PET MRI Imaging: rhPSMA-7.3 (18F) PET MRI imaging will be conducted once at baseline and a second time within one year of the initial scan.