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Extremely Hypofractionated Intensity Modulated Stereotactic Body Radiotherapy for the Treatment of Prostate Cancer With Rising PSA After Radical Prostatectomy
About
Brief Summary
This phase II trial investigates the effect of extremely hypofractionated intensity modulated stereotactic body radiotherapy in treating patients with prostate cancer that has rising prostate specific antigen (PSA) after radical prostatectomy. Stereotactic body radiation therapy uses special equipment to position a patient and deliver radiation to tumors with high precision. This method may kill tumor cells with fewer doses over a shorter period and cause less damage to normal tissue. Hypofractionated radiation therapy delivers higher doses of radiation therapy over a shorter period of time and may kill more tumor cells and have fewer side effects.
Primary Purpose
Study Type
Phase
Eligibility
Gender
Healthy Volunteers
Minimum Age
Maximum Age
Inclusion Criteria:
- History of histologically confirmed, clinical localized adenocarcinoma of the prostate treated with radical prostatectomy with definitive intent
- Presence of any ONE of the following:
- Adverse pathologic features at the time of prostatectomy (positive surgical margin, pathologic T-stage 3-4 disease, pathologic Gleason score 8-10 disease, OR presence of tertiary Gleason grade 5 disease)
- Documentation of rising prostate-specific antigen on at least two consecutive draws, with the magnitude of prostate-specific antigen exceeding 0.03 ng/mL
- Intermediate- or high-risk Decipher genomic classifier score
- Identification of prostate cancer in >= 1 lymph node at the time of prostatectomy (pN+ disease)
- CT scan and MRI of the pelvis within 120 days prior to enrollment [note: (a) if patient has medical contraindication to MRI, an exemption will be granted and enrollment can proceed; (b) for patients with PSA < 1.0 ng/mL, the treatment planning CT can substitute for a diagnostic CT scan; (c) a low-field, radiation planning MRI can replace the diagnostic MRI if the patient refuses or cannot obtain a high-field MRI]
- Bone scan OR advanced nuclear imaging study within 120 days prior to enrollment for patients with PSA > 1.0 ng/mL
- Age >= 18
- Karnofsky performance status (KPS) >= 70 and/or Eastern Cooperative Oncology Group (ECOG) =< 2
- Ability to understand, and willingness to sign, the written informed consent
Exclusion Criteria:
- Patients with any evidence of distant metastases. Note, evidence of lymphadenopathy below the level of the renal arteries can be deemed loco regional per the discretion of the investigator
- Patients with neuroendocrine or small cell carcinoma of the prostate
- Prior pelvic radiotherapy
- History of Crohn's disease, ulcerative colitis, or ataxia telangiectasia
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Study Stats
Protocol No.
21-000263
Category
Prostate Cancer
Principal Investigator
Location
- UCLA Westwood