PROMISE PET Registry on PSMA-PET and Outcome in Prostate Cancer

Background: Prostate Cancer Molecular Imaging Standardized Evaluation (PROMISE) criteria have been defined for standardized reporting of Prostate-Specific Membrane Antigen (PSMA) Positron-Emission-Tomography (PET) whole-body stage of prostate cancer \[Seifert et al. European Urology 2023\]. PSMA PET disease extent by PROMISE has been associated with relevant oncologic outcome, specifically overall survival in patients with various stages of prostate cancer. Need: Improved risk assessment across various stages of prostate cancer is urgently needed for guidance of clinical management and prospective study design. Aim: 1. To assess the prognostic value of PSMA PET, summarized by PROMISE \[Seifert et al EurUrol23\] 2. To compare the prognostic value of PSMA PET with established clinical prognostic scores in patients with prostate cancer at various disease stages 3. To assess the association of PSMA PET stage with management, laboratory findings, histopathology findings or patient characteristics Eligibility: Adult patients with biopsy/histo proven prostate cancer who underwent PSMA PET for staging at various stages will be included consecutively. All stages will be included: Primary (Initial Staging), BCR (Biochemical Recurrence), nmCRPC (conventional non-metastatic castration-resistant prostate cancer), mHSPC (conventional metastatic hormone-sensitive prostate cancer), mCRPC (conventional metastatic castration-resistant prostate cancer) and advanced mCRPC. Inclusion: * Adult patients with * histopathology proven prostate cancer who * underwent PSMA PET (any type) * for staging or re-staging at any stage and who * have at least 3-year overall survival follow-up data available will be included consecutively. Exclusion: * Patients with neuroendocrine prostate cancer * Patients with metastasized or disseminated malignancy other than prostate cancer Statistical considerations: This is an open registry study. The more data sets are contributed, the more precisely the diagnostic accuracy and prognostic value of PSMA PET can be determined for the overall cohort and subgroups. Prognostic value of variables from PSMA-PET (PROMISE parameters, PSMA-Volume, Standardized Uptake Value (SUV) among other) and patient characteristics will be assessed by regression analysis and correlation analysis. Hazard ratio (95% Confidence Interval) and Concordance Index for the prediction of primary and secondary endpoints will be calculated. Primary endpoint is the association with overall survival. Secondary endpoints are the association with progression-free survival, management and other characteristics. Central Database: Data will be stored centrally in a RedCap Database with 3-step authentication at the sponsor site. Recurring Data Entry: Data entry will be conducted repeatedly at about 3 to 6 month intervals.