Active clinical trials for "Prostatic Neoplasms"

Infections due to influenza and pneumococcus can be very serious and cause death. Anyone can get these infections. However, some people are at greater risk from the disease, including people 65 and older, the very young, and people with special health problems such as people with certain types of cancer, heart, lung, or kidney disease, or diabetes. Influenza can cause a very serious lung infection (pneumonia) and increase the risk of stroke and heart attacks. Pneumococcal disease can lead to serious infections in the lungs (pneumonia), the blood (bacteremia), and the covering of the brain (meningitis). People with the special health problems mentioned above are even more likely to die from the disease. Although there are drugs to treat these infections, they are not always effective. This makes prevention of the disease through vaccination even more important. This study will look at the body's response to influenza and pneumococcal vaccination. We want to see how well they it will protect. Immunization is the same as vaccination. Our goal is to protect as much as we can. We are doing the study because more information is needed to see how well older patients with cancer respond to these vaccines and how well they protect against disease caused by influenza and pneumococcus.

RATIONALE: Genistein may increase the effectiveness of radiation therapy in treating pain caused by bone metastases. PURPOSE: This phase I/II trial is studying the side effects of genistein and to see how well it works in treating patients undergoing external-beam radiation therapy for pain caused by bone metastases.

RATIONALE: Vitamin E supplements may stop or delay the development of prostate cancer in patients who are at risk of prostate cancer or who have prostate cancer. It is not yet known which vitamin E regimen is more effective in preventing prostate cancer. PURPOSE: This randomized phase I trial is comparing vitamin E supplement regimens to see how well they work in preventing cancer in patients at risk of prostate cancer or who have prostate cancer.

The aim of the study is to compare the diagnostic performances of a simple and rapid PSA assay on whole blood to the standard plasma PSA assay.

The aim of this study is to determine the long term effects of two types of hormonal treatment for advanced prostate cancer (LHRH agonists and the antiandrogen bicalutamide)on the bone mineral density of patients.

An investigational study on the use of HIFU in the management of localized prostate cancer as a primary non-comparative study High intensity focused ultrasound (HIFU) is a non-invasive acoustic ablation technique that uses intersecting, precision focused ultrasound waves to raise the temperature of the target to )80-90 degrees C in 2-3 seconds, destroying the targeted tissues (prostate cancer). The tissue targeting is highly precise, minimizing collateral damage. The overall hypothesis is that HIFU with Sonablate can safely, effectively and selectively ablate prostate cancer tissue, resulting in complete tissue necrosis, in patients diagnosed with localized T1c/T2a prostate cancer, with minimal morbidity. The specific hypothesis is that the Sonablate has the ability to: COmpletely destroy prostate cancer tissue, without causing damage to the intervening tissue, with a drop in PSA levels to <0.5ng/ml. Result in negative biopsies for evidence of viable malignant cells after the treatment(12 months if Nadir is not reached or PSA rises from Nadir) Safely treat localized prostate cancer pts., with minimal and acceptable adverse effects.

Prostate cancer patients treated with LHRH agonists (e.g., leuprolide) lose bone mineral density. This is similar to post-menopausal osteoporosis. Risedronate is approved to prevent osteoporosis. We hypothesize that risedronate may also be effective in prostate cancer patients treated with LHRH agonists.

RATIONALE: Chemoprevention is the use of certain drugs or substances to keep cancer from forming, growing, or coming back. The use of lycopene, a substance found in tomatoes, may keep prostate cancer from forming in patients at high risk of developing prostate cancer. PURPOSE: This phase I trial is studying the side effects and best dose of lycopene in preventing prostate cancer in patients who are at high risk of developing prostate cancer.

The aim of this study is to determine whether selenium supplementation leads to changes in selenium levels and gene expression profiles in prostate tissue.

Sympathetic activity could be increased during robot-assisted laparoscopic radical prostatectomy, which is performed in a steep trendelenburg position under CO2 pneumoperitoneum. Stimulation of the sympathetic nervous system prolongs the QT interval and can increases the susceptibility to life threatening cardiac arrhythmias. Dexmedetomidine has sympatholytic effects and potential antiarrhythmic properties. Perioperative administration of dexmedetomidine is a potential preventive and treatment strategy for tachyarrhythmia. Thus the investigators decided to evaluate the effect of dexmedetomidine on heart-rate corrected QT interval during robot-assisted laparoscopic radical prostatectomy. Furthermore, the investigators evaluated the Tp-e, Tp-e/QT ratio and Tp-e/QTc ratio as well.