Salvage Oligometastasectomy and Radiation Therapy in Recurrent Prostate Cancer
Salvage Oligometastasectomy and Radiation Therapy in Recurrent Prostate Cancer
This phase II trial studies how well surgery and radiation therapy work in treating patients
 with prostate cancer that has come back or spread to other parts of the body. Radiation
 therapy uses high energy beams to kill tumor cells and shrink tumors. Surgical procedures,
 such as oligometastasectomy, may remove tumor cells that have spread to other parts of the
 body. Surgery and radiation therapy may work better in treating patients with prostate cancer
 that has come back or spread to other parts of the body.
PRIMARY OBJECTIVES:

 I. To assess response to treatment of oligometastatic disease.

 SECONDARY OBJECTIVES:

 I. To assess additional measurements of response to treatment of oligometastatic disease.

 II. To assess prostate-specific antigen (PSA) progression free-survival following treatment
 of oligometastatic disease.

 III. To assess time to disease recurrence following treatment of oligometastatic disease.

 IV. To assess time to initiation of antiandrogen therapy (ADT) for metastatic prostate cancer
 following treatment of oligometastatic disease.

 V. To assess the rate of undetectable PSA following treatment of oligometastatic disease in
 subjects who have previously undergone prostatectomy.

 VI. To assess safety. VII. To assess the impact of study treatment on change in quality of
 life over three years.
Inclusion Criteria:

 -  Histologically proven adenocarcinoma of the prostate.

 -  Recurrent prostate carcinoma after definitive therapy for primary disease defined as:

 -  Post-prostatectomy (with/without adjuvant radiotherapy): Detectable or rising PSA
 level that is > 0.2 ng/mL with a second confirmatory level of > 0.2 ng/mL after a
 minimum of 1 week.

 -  Post radiotherapy/ablation (without radical prostatectomy): PSA rise >= 2ng/mL
 over nadir.

 -  Subjects treated with prior definitive radiotherapy for prostate cancer who have
 positive molecular imaging (e.g., fluciclovine PET/CT scan or other per PI discretion)
 suggesting recurrent intraprostatic disease must undergo transrectal ultrasound (TRUS)
 biopsy less than or equal to one year before study enrollment:

 -  If the TRUS biopsy is negative, no additional treatment is required to the
 prostate in addition to that of scan positive sites.

 -  If the TRUS biopsy is positive, subject must undergo salvage prostatectomy or
 salvage radiotherapy to the primary site concurrently with the study treatment
 per the treatment protocol algorithm.

 -  Oligometastatic disease defined as 10 or fewer metastatic lesions to lymph nodes
 and/or bones only.

 -  For patients with oligometastatic disease involving lymph nodes, metastasis is
 confined to the pelvic or para-aortic (below IMA) regions on molecular imaging (e.g.,
 fluciclovine PET/CT or PSMA PET/CT scan or other per PI discretion).

 -  All subjects must be surgical candidates if surgery is indicated per the treatment
 algorithm.

 -  Eastern Cooperative Oncology Group (ECOG) performance status =< 2.

 -  Use of condoms for male subjects who have not had surgical removal of their prostate
 and have a partner of child bearing potential beginning at the time of informed
 consent form (ICF) signature and lasting until at least 6 months after the last
 radiation treatment. Because of the potential side effect on spermatogenesis
 associated with radiation, female partners of childbearing potential must agree to use
 a highly effective contraceptive method during and for 6 months after completing
 treatment.

 -  Recovery to baseline or =< grade 1 Common Terminology Criteria for Adverse Events
 (CTCAE) version (v)5 from toxicities related to any prior treatments, unless adverse
 event (AE)(s) are clinically non-significant and/or stable on supportive therapy as
 determined by the treating physician.

 -  Able to provide informed consent and willing to sign an approved consent form that
 conforms to federal and institutional guidelines.

 Exclusion Criteria:

 -  Known brain or visceral metastases other than lymph nodes as defined by CT, MRI, or
 othermolecular imaging (e.g., fluciclovine PET/CT or PSMA PET/CT scan or other per PI
 discretion).

 -  Patients actively receiving hormone therapy for prostate cancer. Patients may have
 received hormone therapy perviously but must have documented non-castrate levels of
 testosterone (>50 ng/dL)

 -  Prior or concurrent malignancy whose natural history or treatment, in the opinion of
 the enrolling investigator, may have the potential to interfere wih the safety or
 efficay assessment of the investigational treatment protocol of the study.

 -  Use of finasteride within 30 days prior to initiation of therapy. Baseline PSA should
 not be obtained prior to 30 days after stopping finasteride.

 -  Use of dutasteride within 90 days prior to initiation of therapy. Baseline PSA should
 not be obtained prior to 90 days after stopping dutasteride.

 -  Use of any prohibited therapy.

 -  Active, uncontrolled, significant intercurrent or recent illness including, but not
 limited to, the following conditions:

 -  Cardiovascular disorders:

 -  Congestive heart failure New York Heart Association class 3 or 4, unstable
 angina pectoris, serious cardiac arrhythmias.

 -  Uncontrolled hypertension defined as sustained blood pressure (BP) > 150
 mmHg systolic or > 100 mmHg diastolic despite optimal antihypertensive
 treatment.

 -  Stroke (including transient ischemic attack [TIA]), myocardial infarction
 (MI), or other ischemic event, or thromboembolic event (e.g., deep venous
 thrombosis, pulmonary embolism) within 6 months before first dose.

 -  Acute bacterial or fungal infection requiring intravenous antibiotics at the time
 of registration

 -  Chronic obstructive pulmonary disease exacerbation or other respiratory illness
 requiring hospitalization or precluding study therapy at the time of registration
 or within 30 days of registration.

 -  Hepatic insufficiency resulting in clinical jaundice and/or coagulation defects.