Single Arm Trial of Preoperative Stereotactic Body Radiation Therapy (SBRT) for T3a or Gleason Grade Group 4 Prostate Cancer
A Single Arm Phase II Trial of Preoperative Stereotactic Body Radiation Therapy (SBRT) for T3a or Gleason Grade Group 4 Prostate Cancer
This study involves Stereotactic Body Radiation Therapy (SBRT) followed by prostatectomy (removal of the prostate). SBRT is a relatively new radiation technique in which a few doses of radiation are delivered to small, well-defined tumors. It has been used effectively in other cancers like lung and liver. The radiation will be given for only 5 days.
The purpose of this study is to compare the effects, good and/or bad, of different doses of SBRT given before prostatectomy.
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Phase
Phase
- Not Applicable
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
- Histologically proven prostate adenocarcinoma.
- Clinical stage ≤T3a based on digital rectal exam (DRE) and ≤T3a based on MRI (within 3 months); N0-Nx; M0-Mx, or Gleason score 4 + 4. No more than 1 lymph node >1 cm.
- PSA ≤ 50 ng/ml, obtained within 3 months
- Prostate volume: ≤60 cc.
- IPSS score ≤15.
- No previous radiotherapy to the prostate or lower pelvis.
- Lymph node risk of <35% using https://www.mskcc.org/nomograms/prostate/pre_op.
- No prior radical prostatectomy or cryotherapy of the prostate (prior transurethral resection or laser ablation are permitted).
- No implanted hardware or other material that would prohibit appropriate treatment planning or treatment delivery, in the investigator's opinion.
- No history of an invasive malignancy (other than this prostate cancer, or non-metastatic basal or squamous skin cancers) in the last 3 years.
- No androgen deprivation therapy (ADT) can be prescribed prior to or during radiation therapy.
- Participant must be able to have gold fiducial markers placed in the prostate. Note: patients can be enrolled after fiducial markers have been placed, as long as the procedure was done in accordance with the protocol (Section 4.2.2).
- Eastern Cooperative Oncology Group (ECOG) performance status ≤2
- Ability to understand and the willingness to sign a written informed consent document.
- Willing to fill out quality of life questionnaires.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: Stereotactic Body Radiation Therapy, followed by Prostatectomy
Patients will receive 6 Gy per day of Stereotactic Body Radiation Therapy (SBRT) per day for 5 days, followed by prostatectomy in 3 weeks.
|
SBRT treatment
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Measure of PSA (Prostate Specific Antigen)
Time Frame: Up to 12 months
|
Measure of PSA through treatment.
PSA is expected to be undetectable (<0.2 mg/ml) after prostatectomy and radiation therapy.
|
Up to 12 months
|
|
Number of symptomatic adverse anastomotic events
Time Frame: Up to 12 months
|
Number of symptomatic anastomotic events related to pre-operative SBRT.
|
Up to 12 months
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Mean Catheterization Time
Time Frame: Up to 4 weeks post surgery
|
Average time of catheterization following prostatectomy
|
Up to 4 weeks post surgery
|
|
Mean Hospital Stay
Time Frame: Up to 2 week post surgery
|
Average time of hospitalization after prostatectomy
|
Up to 2 week post surgery
|
|
Quality of Life assessment
Time Frame: Baseline, at 2 weeks, 4 weeks, 2 months and every 3 months up to 12 months post surgery
|
Quality of Life will be assessed using 2 questionnaires: International Prostate Symptom Score (IPSS) and Sexual Health Inventory for Men (SHIM).
The IPSS is an eight question questionnaire of symptoms ranging from 0 "not at all" to 5 "always".
The SHIM is a five question questionnaire ranging from 1 "almost never or never" to 5 "almost always or always" to determine erectile dysfunction.
|
Baseline, at 2 weeks, 4 weeks, 2 months and every 3 months up to 12 months post surgery
|
Collaborators and Investigators
Sponsor
Sponsor
Investigators
Investigators
- Principal Investigator: Peter Johnstone, MD, H. Lee Moffitt Cancer Center and Research Institute
Publications and helpful links
Helpful Links
Study record dates
Study Major Dates
Study Start (Actual)
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Actual)
First Posted
Study Record Updates
Last Update Posted (Actual)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- MCC-19670
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
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