View clinical trials related to Prostate Cancer.
Filter by:Selenium, in the form of inorganic Sodium Selenite, may be useful for treating existing prostate cancer. This idea is based on data from our laboratory showing that 1) prostate cancer cells are more sensitive to Selenium (Sodium Selenite)-induced apoptosis than normal prostate epithelial cells, 2) Selenite induces significant growth inhibition of well established prostate cancer tumors in mice at doses that have no detectable toxicity, and 3) Selenite disrupts AR signaling, and that the inhibition of AR expression and activity by Selenite occurs via a redox mechanism involving GSH, superoxide, and Sp1. Altogether, these findings suggest that Selenium may be useful in a variety of potential indications in the natural history of prostate cancer, including both hormone sensitive and castrate resistant prostate cancer, as a single agent, or in combination with radiation, chemotherapy or conventional hormone therapy. Selenite is a potential novel inhibitor of AR expression and function in prostate cancer.
The phase 1 portion of this study is an open-label, multicenter, dose-escalation study of 1-month depot TAK-448 in adult males with prostate cancer who are either on gonadotropin releasing hormone (GnRH) therapy or who might be eligible for GnRH therapy in the future. The phase 2 portion of this study is an open-label, multicenter, randomized study in men with prostate cancer that will confirm the testosterone- and prostate specific antigen (PSA)- lowering potential of up to 2 dose levels of 1-month depot TAK-448.
The purpose of this research study is to assess the effects of ZD4054 on prostate cancer that has spread to the bones by using new imaging techniques. In particular, this study will use fluorodeoxyglucose (FDG) and 18F-Sodium Fluoride (NaF) PET/computed tomography (CT) and MRI scans to look for changes in bone metastasis after ZD4054 therapy.
This is a randomized, two-arm, placebo controlled trial to evaluate benefit of treatment using POMELLA™ extract on mechanisms known to drive prostate cancer. This research allows provision for biochemical and histological comparisons to be made between POMELLA™ treated and placebo treated prostate tissues removed from men with organ confined prostate cancer.
RATIONALE: Receiving standard information and watching a video or DVD at home that describes treatment options and treatment outcomes may help patients decide to receive treatment in a clinical trial. PURPOSE: This randomized clinical trial is studying implant radiation therapy to see how well it works compared with surgery in treating patients with prostate cancer.
The objective of the study is to determine if men with evidence of progressive prostate cancer while on chronic androgen ablation of ≥ 1 year duration will exhibit a clinical response following administration of parenteral testosterone and oral etoposide. Treatment Plan: Eligible patients will continue on androgen ablative therapy with luteinizing hormone-releasing hormone (LHRH) agonist (i.e. Zoladex or Lupron) if not surgically castrated. Patients will receive intramuscular injection with testosterone cypionate at a dose of 400 mg every month for a total of 3 injections (i.e. 3 months of therapy). This dose was selected based on data demonstrating that it produces an initial supraphysiologic serum level of testosterone (i.e. > 3-5 times normal level) with eugonadal levels achieved at the end of two weeks. Beginning the day of the testosterone injection, patients will also receive oral etoposide 100 mg/day in divided doses (50 mg q 12h) x 14 days out of 28 days per cycle. After 3 months on therapy, patients will have repeat prostate specific antigen (PSA) and bone/computed tomography (CT) scans to establish the effect of combined testosterone and etoposide treatment on these parameters (i.e. "testosterone effect baseline"). Patients with sustained elevations in PSA ≥ 50% above pre-testosterone treatment PSA levels after the initial three months of testosterone and etoposide therapy will not receive continued therapy and will come off study. Patients with PSA levels less than the peak serum PSA level seen over the three month period (PSA decline) or patients with PSA ≤ 50% of pretreatment baseline will receive a second 3 month course of monthly testosterone and etoposide therapy until evidence of disease progression. Disease progression is defined as a PSA increase above the PSA level obtained after 3 months on testosterone treatment over two successive measurements 2 weeks apart or evidence of new lesions or progression on bone/CT scans compared to baseline studies. Patients who respond to initial treatment with testosterone and etoposide and then show signs of progression will have the option of retreatment with testosterone alone after a period of 3 months or greater off of the original therapy.
RATIONALE: Specialized radiation therapy that delivers a high dose of radiation directly to the tumor may kill more tumor cells and cause less damage to normal tissue. PURPOSE: This clinical trial is studying how well proton radiation therapy works in treating patients with prostate cancer.
This study evaluates if temsirolimus causes a reduction in the serum levels of prostate-specific antigen (PSA) in male subjects with castration-resistant prostate cancer (CRPC).
Evaluate the accuracy of HIT guided biopsies for mapping tumor foci with men undergoing prostatectomy.
This is a prospective, open, one-arm, two-centre, Phase II clinical safety pilot-study. The trial is designed to gain initial safety and efficacy-related data on once-daily orally administered ZD4054 10 mg in prior chemotherapy treated patients with metastatic hormone-resistant prostate cancer.