Active clinical trials for "Prostatic Neoplasms"

The purpose of this study is to determine if weight loss prior to radical prostatectomy effects chemical substances in the blood stream and prostate tissue that may affect prostate cancer development and progression.

RATIONALE: Radiation therapy uses high-energy x-rays and other types of radiation to kill tumor cells. Giving radiation therapy in different ways may kill more tumor cells. It is not yet known which type of radiation therapy is more effective in treating prostate cancer. PURPOSE: This randomized phase III trial is studying different types of radiation therapy to compare how well they work in treating patients with stage I, stage II, or stage III prostate cancer.

RATIONALE: Androgens can cause the growth of prostate cancer cells. Drugs, such as leuprolide and bicalutamide, may stop the adrenal glands from making androgens. Squalamine lactate may stop the growth of prostate cancer by blocking blood flow to the tumor. Giving hormone therapy together with squalamine lactate before surgery may make the tumor smaller and reduce the amount of normal tissue that needs to be removed. PURPOSE: This randomized phase II trial is studying how well giving hormone therapy together with squalamine lactate works compared to hormone therapy alone in treating patients who are undergoing a radical prostatectomy for locally advanced prostate cancer.

The primary objective of this study is to determine whether zoledronic acid (Zometa) given once annually increases bone mineral density in men receiving hormone therapy for prostate cancer.

RATIONALE: Chemoprevention therapy is the use of certain substances to try to prevent the development or recurrence of cancer. The dietary supplement lycopene may prevent the development of prostate cancer. PURPOSE: This phase I trial is studying the side effects and best dose of lycopene in preventing prostate cancer in healthy participants.

This is a study in which patients with prostate cancer treated by surgical removal of the prostate and considered to be at risk for prostate cancer recurrence will receive Exisulind 250 mg twice a day or placebo twice a day for two years.

This study will examine the usefulness of an imaging procedure called dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) for localizing and characterizing prostate cancer. For this test, a medicine is injected into a vein and the MRI measures how the medicine flows through the prostate gland. The measurements provide information about the blood vessels in the prostate gland, which provides other information about the cancer. Several needle biopsies are performed during the procedure, and the results of the biopsies are compared with the information from the DCE-MRI. Men 18 years of age and older with suspected or confirmed prostate cancer may be eligible for this study. Candidates are screened with a medical history and physical examination, blood test, and review of tumor pathology. Participants undergo DCE-MRI and needle biopsies of the prostate. The day before and the morning of the procedure, patients are given an antibiotic called Levofloxacin. They also have a small enema the morning of the test. A local anesthetic is then given in the area around the prostate to numb the tissue and decrease any discomfort from the procedure. A tube is placed in the rectum to obtain better pictures of the prostate gland during the imaging. During the scan, the patient may be asked to breathe air that contains higher concentrations of oxygen and carbon dioxide than are in room air. The MRI scans guide the physician in selecting areas of the prostate to biopsy. For each biopsy, a needle is placed through the rectum into the prostate gland. When the needle is in place, a small tissue sample is withdrawn. This procedure is repeated until 4 to 10 biopsies are taken. During the procedure, which lasts about 1 hour, the patient lies on his stomach on a stretcher. Patients who are planning to undergo surgery or radiation treatment for their cancer at the NCI may have up to four 1-mm non-reactive gold markers placed in the prostate during the DCE-MRI procedure. The markers are left in place to help target the radiation treatments and to show where the biopsies were taken if the prostate is removed. At the end of the procedure, the patient is moved to a bed to recover and may get up and urinate after about 30 to 60 minutes. After a period of observation, the patient is discharged home with a dose of antibiotic to take the next day. Some patients may be asked to repeat the MRI and biopsy procedure during or after their treatment for prostate cancer to help investigators learn whether the MRI test is still helpful after treatment. Repeat testing is optional.

RATIONALE: A low-fat, high-fiber diet may slow the growth of prostate cancer. PURPOSE: Randomized phase II trial to compare the effectiveness of a low-fat, high-fiber diet with that of a standard diet in treating patients who have prostate cancer.

RATIONALE: Chemoprevention therapy is the use of certain drugs to try to prevent the development of cancer. The use of selenium may be an effective way to prevent prostate cancer in patients who have neoplasia of the prostate. PURPOSE: Randomized phase III trial to study the effectiveness of selenium in preventing prostate cancer in patients who have neoplasia of the prostate.

RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Giving chemotherapy after surgery may kill more tumor cells. PURPOSE: Phase II trial to study the effectiveness of mitoxantrone given after surgery in treating patients who have prostate cancer that is at high risk for recurrence.