Active clinical trials for "Prostatic Neoplasms"

Androgen (a male sex hormone) deprivation is the standard therapy for metastatic prostate cancer and results in regression or control of disease in 80-85% of patients. This hormone therapy results in a progression-free survival of 12-18 months and overall survival of 24-30 months. However, all patients ultimately develop hormone-refractory prostate cancer (HRPC). Management of HRPC patients is a significant challenge for both patient and physician. Neither past nor current chemotherapy regimens have shown curative potential in patients with HRPC. Thus new treatment strategies are a high priority. A major focus of new treatment strategies is to enlist the aid of the immune system, particularly the development of prostate cancer vaccines. There has been a number of studies using dendritic cell based vaccines and the treatment has been well tolerated. Specific T-cell immune responses have been observed and occasional evidence for tumor regression. A reduction in serum prostate-specific antigen (PSA) has been observed as well. Lengthening the time-to-progression and delays in the onset of bone pain have been observed in subsets of patients with HRPC. The initial preclinical observations suggesting that a granulocyte-macrophage colony-stimulating factor (GM-CSF) gene transduced allogeneic (GVAX) prostate cancer vaccine may be efficacious in poorly immunogenic cancers were reported. The objective of this study is to evaluate the safety and immunologic effects of vaccinations with Allogeneic Prostate GVAX® (CG1940 & CG8711) in patients made lymphopenic by treatment with chemotherapy and infused with autologous peripheral blood mononuclear cells (PBMC). Clinical observations and laboratory measurements will be monitored to evaluate safety, toxicity and immune responses. Additionally, the effects of treatment on serum PSA levels and tumor response will be evaluated.

RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. R-flurbiprofen may be effective in delaying the recurrence of localized prostate cancer. PURPOSE: Randomized phase II trial to study the effectiveness of R-flurbiprofen in treating patients who have localized prostate cancer at risk of recurrence following radiation therapy and/or prostatectomy.

RATIONALE: Drugs such as SU006668 may stop the growth of solid tumors by stopping blood flow to the tumor. PURPOSE: Phase I trial to study the effectiveness of SU006668 in treating patients who have advanced solid tumors.

RATIONALE: Radiation therapy uses high-energy radiation to damage tumor cells. Brachytherapy uses radioactive material that is placed directly into or near the tumor. Brachytherapy may kill more tumor cells. PURPOSE: Phase I/II trial to study the effectiveness of brachytherapy in treating patients who have recurrent prostate cancer that has not responded to standard therapy.

RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Giving more than one drug may kill more tumor cells. PURPOSE: Phase II trial to study the effectiveness of combination chemotherapy in treating patients who have prostate cancer that has not responded to hormone therapy.

RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining more than once drug may kill more tumor cells. PURPOSE: Phase II trial to study the effectiveness of paclitaxel plus estramustine in treating patients who have metastatic prostate cancer that has not responded to hormone therapy.

RATIONALE: Androgens can stimulate the growth of prostate cancer cells. Hormone therapy using triptorelin and flutamide may fight cancer by reducing the production of androgens. It is not yet known whether giving hormone therapy for 4 months is more effective than giving therapy for 8 months prior to radiation therapy for prostate cancer. PURPOSE: Randomized phase III trial to study the effectiveness of combination hormone therapy for 4 or 8 months followed by radiation therapy in treating patients with prostate cancer.

This is an open-label, non-controlled, non-randomized study to assess the safety and measure image-based absorbed dose of 177Lu-EB-PSMA-617 in patients with metastatic castration-resistant prostate cancer (mCRPC) who will undergo radioliagnd therapy using 177Lu-EB-PSMA-617. All patients underwent whole-body 68Ga-PSMA PET/CT for selection and accepted intravenous injection with single dose 0.80-1.1 GBq (21.5-30 mCi) of 177Lu-EB-PSMA-617 within one week, then monitored at 2, 24, 72, 120 and 168 h after 177Lu-EB-PSMA617 administration with serial whole body planar and SPECT/CT imaging.

This is a prospective phase II study to assess the efficacy and toxicity of HSV-tk+ valacyclovir gene therapy in combination with androgen deprivation therapy, brachytherapy, external beam radiotherapy, and prostatectomy in previously untreated high-risk prostate cancer.

This study is to evaluate the safety and efficacy of a therapeutic vaccine in combination with PD-1 knockout T cells in the treatment of advanced prostate cancer.