Active clinical trials for "Prostatic Neoplasms"

The purpose of this study is to investigate cleavage products of the urokinase plasminogenactivator receptor (uPAR) in plasma from patients with castration resistant prostate cancer as a predictive marker of response to abiraterone.

The purpose of this study is to assess and compare the clinical benefit rate in patients with metastatic castrate-resistant prostate cancer and poor prognostic factors treated with cabazitaxel or novel hormonal agents (abiraterone or enzalutamide) as initial therapy, to determine which treatment is most active in this population. Clinical benefit rate is defined as PSA or measurable radiological response of any duration or stable disease for > or equal to 12 weeks, in the absence of other indicators of progression. There is option to cross-over onto the other arm if the patient progresses.

This phase II trial studies how well giving abiraterone acetate and prednisone with or without dasatinib works in treating patients with metastatic, hormone-resistant prostate cancer. Androgens can cause the growth of prostate cancer cells. Antihormone therapy, such as abiraterone acetate, may lessen the amount of androgens made by the body. Dasatinib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. It is not yet known whether abiraterone acetate and prednisone is more effective than abiraterone acetate, prednisone, and dasatinib in treating prostate cancer

Prostate cancer is the most common male cancer in the UK with 35,000 cases diagnosed annually. 35% of these are locally advanced disease. These patients have a high chance of pelvic lymph node involvement and have relatively poor prostate cancer survival rates of 22.5% at 10 years. One of the standard treatments for these patients is radiotherapy to the prostate. PIVOTAL is a multi-centre phase II non-comparative randomised feasibility trial, in which patients with a high chance of pelvic lymph node involvement are randomised between prostate radiotherapy alone and prostate + pelvic radiotherapy. Both groups will receive radiotherapy called Intensity Modulated Radiation Therapy (IMRT). This is a relatively new method of shaping radiotherapy treatment beams which allows the tumour to be treated more precisely, whilst avoiding more of the surrounding normal, healthy tissues (particularly the rectum, bladder and bowel). Using IMRT, it is possible to deliver higher doses of radiotherapy to the pelvis than with previous radiotherapy methods - this has been tested in a single hospital, single group setting and levels of side effects (toxicity) were acceptable. PIVOTAL aims to find out whether toxicity levels at 18 weeks from the start of radiotherapy remain acceptable when treatment is given in multiple cancer centres across the UK. It is randomised to ensure unbiased collection of acute toxicity data and to provide information on patients' willingness to participate in a randomised study. Should the phase II study be successful, the investigators would develop a phase III trial to compare treatment effectiveness (disease control). Patients who enter PIVOTAL will be followed up for two years from the start of radiotherapy and data relating to toxicity will be collected. They will also be asked to complete patient related symptoms questionnaires. Data related to disease recurrence will then be collected annually from patients' standard hospital visits.

This is an open-label randomized clinical study comparing primary prostate cryoablation alone (No-ADT group) with cryoablation plus short-term adjuvant androgen-deprivation therapy (Adj-ADT group) in the treatment of patients with high-risk localized prostate cancer.

The purpose of this study is to determine if a non-invasive cancer treatment, high-dose stereotactic body radiotherapy (SBRT), is associated with changes in circulating tumor cells counts in patients with low- and intermediate-risk prostate cancer.

RATIONALE: High-intensity focused ultrasound focal ablation uses high-energy sound waves to kill tumor cells. PURPOSE: This phase II trial is studying the side effects of high-intensity focused ultrasound focal ablation and to see how well it works in treating patients with progressive prostate cancer.

The mechanisms responsible for the development of hormonal refractory prostate cancer (HRPC) have been elusive. Genetic inactivation/loss of the PTEN tumor suppressor gene occurs in 30-60% of advanced prostate cancers and in 20% of the localized form. Researchers hypothesize that PTEN loss is a landmark genetic event in prostate cancer progression into the fatal HRPC form. One consequence of PTEN loss is activation of the oncogenic Akt and phosphorylation of downstream Akt targets including mTOR. mTOR controls many important cellular processes including cell cycle regulation. We propose to evaluate pharmacodynamic assessments of the mTOR inhibitor RAD001 in intermediate and high risk prostate cancer patients in the neoadjuvant setting. Patients will be admitted to 6 weeks treatment with RAD001 10 mg/day followed by either radical prostatectomy or radiotherapy combined with hormonal treatment. Immunohistochemistry with antibodies for phosphorylated p70S6K , pS6, Akt as well as antibodies for VEGF, BCL2 and PTEN in prostate cancer tissues before and after 6 weeks RAD001 treatment will be performed. Additionally, Patients will be evaluated by FDG-PET scan before (as baseline) and after RAD001 treatment. A link between mTOR signaling and glycolysis regulation was established and may provide a mechanism to assess drug-target interaction of RAD001 in prostate cancer. The secondary endpoint of the trial will be to determine the response proportion to RAD001 treatment by assessing time to biochemical failure followed by radiation therapy or radical prostatectomy. The data will be compared to a matched cohort of high and intermediate-risk prostate cancer patients admitted to the same treatments modalities without receiving RAD001.

The goal of this clinical research study is to compare using external beam radiotherapy with intensity modulated beams for fewer days at a higher dose per day to the same type of therapy for more days at a lower dose per day in the treatment of prostate cancer. The safety of these treatments will also be studied and compared.

The purpose of this study is to investigate the effects of MK0822 in prolonging the time to first bone metastasis in men with castration-resistant prostate cancer.