Statin Therapy Versus Placebo Prior to Prostatectomy
Basic Trial Information
|No phase specified||Biomarker/Laboratory analysis, Treatment||Closed||18 and over||Other||CLIN-013-07S|
VA IRB#1735, SOL-07130-L, NCT00572468
This is a randomized trial comparing the effect of oral simvastatin versus placebo on targets of the mevalonate pathway in men undergoing a prostatectomy as planned management for prostate cancer. Observed tissue effects will be correlated with changes in serum cholesterol and low-density lipoprotein.
Further Study Information
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.
- 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
- 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:
- other HMG-CoA inhibitors
- lipid-lowering agents
- Cholestyramine and colestipol (bile acid sequestrants)
- Clofibrate and fenofibrate
- CYP3A4 inhibitors
- Niacin ( 1 g/day)
- Verapamil and Warfarin
- Known allergy or sensitivity to ingredients in simvastatin
Trial Contact Information
Trial Lead Organizations/Sponsors
Department of Veterans Affairs - Central Office
- Knight Cancer Institute at Oregon Health and Science University
Link to the current ClinicalTrials.gov record.
NLM Identifier NCT00572468
ClinicalTrials.gov processed this data on April 09, 2015
Note: Information about this trial is from the ClinicalTrials.gov database. The versions designated for health professionals and patients contain the same text. Minor changes may be made to the ClinicalTrials.gov record to standardize the names of study sponsors, sites, and contacts. Cancer.gov only lists sites that are recruiting patients for active trials, whereas ClinicalTrials.gov lists all sites for all trials. Questions and comments regarding the presented information should be directed to ClinicalTrials.gov.