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| ID | Type | Description | Link |
|---|---|---|---|
| NCI-2015-01737 | Registry Identifier | CTRP (Clinical Trial Reporting Program) | |
| JCCCID562 | Other Identifier | Jonsson Comprehensive Cancer Center | |
| 15-000360 | Other Identifier | UCLA / Jonsson Comprehensive Cancer Center |
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P. I. left the Institution. Study never opened
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This pilot clinical trial studies targeted biopsies in determining response in patients with prostate cancer undergoing high-dose-rate brachytherapy (a type of radiation therapy in which radioactive material sealed in needles, seeds, wires, or catheters is placed directly into or near a tumor). Studying tumor tissue obtained before and after treatment may help doctors understand changes in a pathway that looks at how deoxyribonucleic acid (DNA) is repaired after it is damaged and to see if there are differences in the prostate tissue prior to and after starting androgen deprivation therapy.
PRIMARY OBJECTIVES:
I. Demonstrate feasibility of obtaining adequate tumor tissue from an intra-prostatic index lesion prior to the start of androgen deprivation therapy (ADT) and again at the time of high-dose-rate (HDR) brachytherapy.
SECONDARY OBJECTIVES:
I. Use immunohistochemistry to stain cells pre-ADT and post 2 months of ADT for markers of non-homologous end joining and DNA double strand breaks using the following markers: Ku70, Ku80, DNA-dependent protein kinase catalytic subunits (PKCs), gamma-histone family, member X (H2AX).
OUTLINE:
Patients undergo biopsy at baseline before start of ADT and during brachytherapy.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Prostate biopsy | Other | Patients undergo two biopsies, the first at baseline before start of ADT and the second two months later during brachytherapy. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Biopsy of Prostate | Procedure | Undergo biopsy |
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| Measure | Description | Time Frame |
|---|---|---|
| Changes in DNA damage repair pathways | The prostate biopsy sample at baseline and at the time of brachytherapy (approximately two months later) will be examined to determine if prostate cancer is in the core and if at least 20% of the core has prostate cancer in it. | Two months |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Mitchell Kamrava | UCLA / Jonsson Comprehensive Cancer Center | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| UCLA / Jonsson Comprehensive Cancer Center | Los Angeles | California | 90095 | United States |
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| Laboratory Biomarker Analysis | Other | Correlative studies |
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