High-Risk Metachronous Oligometastatic Prostate Cancer Trial
Trial Parameters
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Brief Summary
The purpose of this research study is to compare the effects, good and/or bad, of using the standard of care treatment, hormonal therapy + Stereotactic Ablative Radiation (SABR) to the metastatic lesions, compared to standard of care and addition of 6-months of niraparib/abiraterone acetate combination pills and prednisone for participants with recurrent metastatic prostate cancer.
Eligibility Criteria
Inclusion Criteria: 1. ≥18 years of age (or the local legal age of consent). 2. Patient must have at least one and up to three asymptomatic metastatic tumor(s) of the bone, soft tissue, or extra-pelvic nodal region each \< 5 cm or \< 250 cm3 that develop within the past 6-months that are seen on imaging. A nodal lesion is defined to include nodal conglomerates located in the same nodal chain such that they can be treated in one SABR field. Up to five lesions are allowed on advanced functional imaging such as fluciclovine (Axumin), choline or Prostate Specific Membrane Antigen (PSMA) PET-CT scan. 1. CT or MRI scan within 6 months of enrollment 2. Bone scan within 6 months of enrollment 3. Fluciclovine (Axumin), choline, or PSMA PET-CT scan within 6 months of enrollment (PET-CT scan is reasonable for study entry imaging as an alternative to CT/MRI scan and bone scan) 3. Must have a high-risk pathogenic mutation (TP53, BRCA1/2, PALB2, ATM, BRIP1, CHEK2, FANCA, RAD51B, RAD54L, MUTYH) by ne