Active clinical trials for "Prostatic Neoplasms"

Background: PSA (prostate specific antigen) is a protein found on normal and cancerous prostate cells. Levels of this protein are used to identify men who are at risk for prostate cancer and to monitor responses to treatment in men who have been diagnosed with prostate cancer. Research has shown that men who continue to have an elevated PSA level following primary treatment for prostate cancer are at increased risk for cancer progression. Studies have shown that the change in PSA levels over time, or PSA doubling time (PSADT), can be accurate in predicting how quickly the cancer is likely to progress. Individuals with a PSADT of less than 3 months are at extremely high risk for disease progression and death from prostate cancer. Individuals with a PSADT of greater than 15 months have a very low risk of death from prostate cancer. T-cell receptor alternate reading frame protein (TARP) is a protein that is found in about 95% of prostate cancers and is known to stimulate the immune system. The TARP prostate cancer vaccine is made from pieces of the TARP protein called peptides and includes peptides that have been modified to make them more effective at stimulating immunity. Although these TARP peptides have been shown to stimulate the immune systems of mice, information is needed to determine if they also stimulate the immune system in humans. Since it is unclear what is the best way to give peptide vaccines, the TARP peptides will be given with substances known to stimulate the immune system or in a vaccine made with the patient s own cells. Objectives: To determine the immune systems response to vaccination with TARP peptides. To determine the safety and toxicity of TARP peptide vaccination. To determine if vaccination with the TARP prostate cancer vaccine can slow down PSADT in men with an intermediate PSADT of 3 to 15 months. Eligibility: Males 18 years of age and older who have completed their primary treatment for prostate cancer, have stage D0 disease, are Human leukocyte antigen (HLA) A*0201 positive and who have a PSADT greater than 3 and less than 15 months. Design: Patients will be randomized to one of two treatment arms: Arm A will receive the TARP vaccine with other substances that stimulate the immune system. Arm B will receive the TARP vaccine that includes a patients own white blood cells. First week of study, after screening for eligibility has been completed: Day 1: Apheresis procedure to extract white blood cells to test the immune response to the vaccine. Day 3: Flu vaccine to allow researchers to determine how well a patients immune system is working. Clinic visits in Weeks 3, 6, 9, 12, and 15 for physical examination, blood samples, and administration of the TARP peptide vaccine. Physical examination and blood samples only in Weeks 18 and 36. Additional blood samples and apheresis procedures in Weeks 24 and 48. A 6th dose of TARP peptide vaccine will be administer to those patients who have a response to vaccination at week 24. No follow-up or long-term study is associated with this study.

This study will evaluate the feasibility, safety, and efficacy of intradermal vaccination of prostate cancer patients with alpha-type-1-polarized dendritic cells (DC1) loaded with apoptotic allogeneic tumor (LNCap). The study will target men with recurrent prostate cancer, who failed local therapy, have no measurable metastasis, but have a rising PSA with a doubling time of less than 10 months. The selection of this study group enables us to evaluate time to PSA progression, a highly relevant, clinical primary endpoint of efficacy in this two arm study. In order to facilitate infiltration of vaccination-induced T cells into tumor site(s) and to reduce tumor-specific tolerance, subjects will receive the vaccine in combination with limited androgen ablation (AA) with a LHRH analogue for 3 months. Subjects will be randomly assigned to one of two cohorts. In cohort A subjects will be first treated with limited AA alone for 3 months, and at the time of PSA relapse (PSA ≥ 1 ng/dL) will receive the DC vaccine in conjunction with AA. In cohort B, the sequence of treatment will be reversed. Efficacy will be estimated as the within-subject difference in time to PSA relapse following the combination treatment as compared to the AA alone, thus, each subject will serve as his own control. All subjects will commence the DC1-based vaccination 2 weeks prior to treatment with the LHRH analogue. Each subject will receive 1 intradermal (i.d.) dose of the vaccine at weeks 1, 5, 9, and 13 for a total of 4 doses. Additional courses of vaccination may be administered to subjects without evidence of disease progression every 3 months (±1 month) for up to 12 months depending on the number of doses originally produced and available after the 4 intended protocol doses. All doses of the vaccine will be administered intradermally (i.d.).

This study is being offered to patients who have castrate-resistant (also known as hormone-refractory) prostate cancer. The cancer has metastasized or spread outside the prostate area to other parts of the body or has recurred in the pelvic area after treatment. The purpose of this clinical research study is to determine whether OGX-427 is able to slow the progression of prostate cancer and symptoms of disease when given with prednisone better than when prednisone is given alone in patients with prostate cancer whose disease has spread outside the prostate area. Research Hypothesis: That adding OGX-427 to prednisone treatment will produce a progression free rate of 20%.

The purpose of this study is to determine if asymptomatic or minimally symptomatic patients with metastatic prostate cancer who have not received chemotherapy live longer when treated with ipilimumab than those treated with a placebo

Purpose To define the efficacy, tolerability and safety of Vandetanib in combination with bicalutamide in patients with chemotherapy naive hormone refractory prostate cancer Hypothesis There will be a PSA response when Vandetanib is given in combination with Bicalutamide in Chemotherapy Naive Hormone refractory prostate cancer patients.

RATIONALE: Selenium may prevent or slow the growth of prostate cancer. PURPOSE: This randomized phase II trial is studying how well selenium works in treating patients with prostate cancer.

To demonstrate that a hypo-fractionated course of radiotherapy (ie. an accelerated radiotherapy course where fewer but larger doses of radiotherapy are given) is both safe and effective in the treatment of low-risk localized prostate cancer.

The objective of the proposed research is to determine the efficacy of a home-based walking exercise program in promoting cognitive-psychosocial functions of men with prostate cancer receiving androgen depletion therapy (ADT). ADT is the mainstay treatment for men with advanced prostate cancer. However, ADT has a number of side effects including compromised cognitive function, depression and anxiety, which negatively impacts the quality of life of men with prostate cancer. The central question of the proposed research is to determine if exercise will have a positive impact on the quality of life of men with prostate cancer undergoing ADT. Hypothesis:

This study will assess the feasibility and safety of vaccination with increasing doses of xenogenic DNA administered intradermally in combination with electroporation in patients with relapse of prostate cancer. The DNA encodes prostate specific antigen (PSA) from Rhesus Macaque (Macaca mulatta), a protein that is 89% homologous to human PSA. The study will also assess the safety and functionality of the DERMA VAX™ (Cyto Pulse Sciences) DNA vaccine delivery system.

The purpose of the study is to determine whether lenalidomide is safe and effective for use in combination with docetaxel and prednisone for the treatment of subjects with metastatic Castrate-Resistant Prostate Cancer. The addition of lenalidomide to docetaxel and prednisone is proposed to increase the life expectancy of these subjects.