- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00572468
Statin Therapy Versus Placebo Prior to Prostatectomy
Pre-Operative Statin Therapy Versus Placebo in Human Prostate Cancer
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Prostate cancer patients that have chosen to undergo a prostatectomy as their primary treatment option will be recruited to this trial. Forty-four subjects will be randomized to either placebo or simvastatin (40 mg po/day) for 4 weeks prior to surgery. Serum samples will be obtained at baseline and immediately prior to prostatectomy. At prostatectomy, cancerous and benign prostate tissue will be microdissected and cryopreserved. Archival prostatectomy tissues will be used to construct tissue microarrays containing matched benign and malignant sections. The effect of HMG-CoA reductase inhibition on lipid raft cholesterol content and targets of prenylation will be determined. The incidence of apoptosis will be determined along with protein levels of mediators of apoptosis. Lastly the effect of statin therapy on cellular markers of proliferation will be determined.
Previously, we studied the effect of statin use on the risk of prostate cancer detection in a case-control study at the Portland VA Medical Center. Statin use was associated with a 62% reduction in cancer odds-risk (OR = 0.38, 95% CI 0.21-0.69). Although these epidemiologic and laboratory findings have generated enthusiasm for the study of statins in prostate cancer, no studies have examined the biologic effects of statins on prostate cancer in humans.
Hypothesis: Statin therapy prior to prostatectomy will successfully target the mevalonate pathway in the human prostate and this intervention will favorably alter tumor biomarker status.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
North Carolina
-
Durham, North Carolina, United States, 27705
- Durham VA Medical Center, Durham, NC
-
-
Oregon
-
Portland, Oregon, United States, 97201
- VA Medical Center, Portland
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Histologically confirmed prostatic adenocarcinoma with Gleason 5 to 7 (3+4 = 7 accepted, not 4 + 3 = 7)
- Radical prostatectomy chosen as primary treatment for prostate cancer
- Age 18 years or older
- Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
Exclusion Criteria:
- Other preoperative or prior treatment directed at prostate cancer (i.e., Radiation, hormonal therapy, cryotherapy)
- Significant active medical illness which in the opinion of the investigator would preclude protocol treatment
- History of or active liver disease or abnormal results of the baseline liver function test (> 2 x normal)
Current use of:
- simvastatin
- lovastatin
- other HMG-CoA inhibitors
- lipid-lowering agents
- Amiodarone
- Cholestyramine
- Cholestyramine and colestipol (bile acid sequestrants)
- Clofibrate and fenofibrate
- Cyclosporine
- CYP3A4 inhibitors
- Danazol
- Diltiazem
- Gemfibrozil
- Niacin ( 1 g/day)
- Verapamil and Warfarin
- Known allergy or sensitivity to ingredients in simvastatin
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Screening
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Simvastatin
Twenty-two men will be on the Statin arm and take 40 mg of simvastatin.
|
40 mg of simvastatin
Other Names:
|
Placebo Comparator: Placebo
Twenty-two men will be on the placebo arm.
|
placebo
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Measure the Effect of Pre-operative Simvastatin Versus Placebo on the Mevalonate Pathway Synthesis and Target Activation in Benign and Malignant Prostate Tissue.
Time Frame: 5 years
|
Measure the effect of pre-operative simvastatin versus placebo on the mevalonate pathway synthesis and target activation in benign and malignant prostate tissue using Androgen Receptor (AR) antibody.
AR was measured in tissue obtained at the time of prostatectomy in both benign and malignant tissues.
|
5 years
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Compare the Effect of Pre-operative Simvastatin Versus Placebo on Prostate Cancer Cell Apoptosis and Its Mediators in Men Undergoing Planned Prostatectomy.
Time Frame: 2 years
|
Compare the effect of pre-operative simvastatin versus placebo on prostate cancer cell apoptosis and its mediators in men undergoing planned prostatectomy.
Apoptosis was measured by calculating the percent of Ki67 cellular staining.
|
2 years
|
Collaborators and Investigators
Collaborators
Investigators
- Principal Investigator: Mark Garzotto, MD, VA Medical Center, Portland
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Neoplasms
- Urogenital Neoplasms
- Neoplasms by Site
- Genital Neoplasms, Male
- Prostatic Diseases
- Prostatic Neoplasms
- Molecular Mechanisms of Pharmacological Action
- Enzyme Inhibitors
- Antimetabolites
- Anticholesteremic Agents
- Hypolipidemic Agents
- Lipid Regulating Agents
- Hydroxymethylglutaryl-CoA Reductase Inhibitors
- Simvastatin
Other Study ID Numbers
- CLIN-013-07S
- VA IRB#1735 (Other Identifier: VA IRB)
- SOL-07130-L (Other Identifier: OHSU Knight Cancer Institute Identifier)
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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