Active clinical trials for "Prostatic Neoplasms"

This study is being done to determine the safety, biodistribution, and radiation dosimetry of 18F-DCFPyL, and to detect prostate cancer by visual analysis.

Pilot study to evaluate the ability of BR55 to identify prostate cancer lesions with Gleason Score ≥7 by ultrasound molecular imaging on the basis of a visual score in comparison with histopathology results

This study investigates the pathologic effects of the combination of enzalutamide, abiraterone acetate, dutasteride, and degarelix when given for 12 weeks prior to prostatectomy in men with localized prostate cancer. Enzalutamide, an androgen receptor (AR) antagonist, blocks binding of testosterone to the AR as well as preventing nuclear translocation of the AR and DNA binding. Abiraterone acetate inhibits the CYP17 pathway, which is involved in the formation of androgens. Dutasteride is a 5-alpha-reductase inhibitor which blocks conversion of testosterone to dihydrotestosterone. Degarelix, a gonadotropin-releasing hormone (GnRH) antagonist, binds to GnRH receptors on the pituitary gland thus suppressing testosterone release from the testes. Therefore it is hypothesized that the combination of enzalutamide, abiraterone acetate, dutasteride, and degarelix will result in near-complete AR inhibition and produce favorable pathologic changes after 12 weeks of therapy.

Robot assisted laparoscopic radical prostatectomy(Robot-LRP) requires pneumoperitoneum and trendelenburg position which result in oxidative stress and inflammatory response. Propofol is well known to reduce those responses during anesthesia. Therefore, we try to figure out the efficacy of propofol to reduce oxidative stress, inflammatory response and increase the nitric oxide activity during robot-LRP compared to that of desflurane. To investigate the oxidative stress, malondialdehyde will be measured. As inflammatory markers, interleukin-1β, interleukin-6, tumor necrosis factor-α will be measured. Nitric oxide will be measured as well. Secondarily, kidney protection effect of propofol over desflurane will be compared.

This study is being done to help researchers understand more about prostate cancer that has spread to the bones by using the newest magnetic resonance imaging (MRI) techniques and to better understand the effect of an experimental drug called XL184 (or cabozantinib) on bone disease. The other purposes of the study are to better understand the effect of XL184 on prostate cancer progression, bone pain, and on any cancer cells that patients may have circulating within the blood (called circulating tumor cells)

The purpose of this study is to investigate radiographic progression-free survival (PFS) of enzalutamide in chemotherapy-naïve patients with progressive metastatic castration-resistant prostate cancer who have symptomatic disease.

This was a multicenter, multi-reader, open-label, Phase 2 study assessing the safety and performance characteristics of MIP 1404 imaging in the detection of prostate gland and pelvic lymph node cancer. Comparative performance characteristics between MIP 1404 imaging and MRI were also assessed, as judged by histopathology results.

The purpose of this study is to find out whether the two drugs used in the study, metformin and simvastatin, can slow down the speed of rise of prostate specific antigen (PSA) or stop its rise or even bring the level down. Recently, scientists noticed that men who take metformin to treat their high blood sugar or simvastatin to treat their high cholesterol are less likely to develop prostate cancer. Also, scientists found that, when these drugs are used in preclinical studies, they can slow down the growth of the prostate cancer cells. This study will try to find out whether these drugs can actually slow down the growth of prostate cancer in men.

The objective of this study is to evaluate a radiolabeled urea-based small molecule inhibitor of prostate-specific membrane antigen (PSMA), [18F]DCFBC (DCFBC), as a PET imaging biomarker of prostate cancer detection and aggressiveness at initial diagnosis. PSMA is a well characterized histological marker of prostate cancer tumor aggressiveness but a quantitative non-invasive method for PSMA detection and monitoring is not currently available. Development of such an imaging biomarker would be useful to differentiate indolent from aggressive prostate cancer phenotypes and allow for selection of appropriate risk adaptive therapies. The investigators preliminary first-in-human studies demonstrate high specific DCFBC uptake in metastatic prostate cancer and feasibility for prostate cancer imaging. The investigators propose to study patients initially diagnosed with biopsy-positive prostate cancer to determine if DCFBC uptake and location by PET imaging will be positively correlated with prostate cancer by prostatectomy tissue step-section analysis. DCFBC uptake at sites of suspected metastatic disease will be compared to conventional imaging modalities (CT, bone scan) and biopsy results when available. In addition, DCFBC-PET uptake quantification will be compared with expression levels of PSMA and other prostate cancer relevant markers (PSA, Ki-67, TMPRSS2-ERG) by prostate tissue immunohistochemistry analysis and compared with clinical prognostic markers (PSA, Gleason score, clinical stage, Partin tables derived prediction of pathologic stage).

Does a one-page American College of Physicians educational flyer about the pros and cons of prostate cancer screening sent to men within two weeks of their scheduled annual health examinations in a general medicine clinic result in a different rate of prostate cancer screening than among men who were not sent the flyer? Do patients find the flyer useful and understandable? Context: The use of prostate specific antigen (PSA) screening for prostate cancer is controversial because of a lack of evidence that such screening saves lives when applied within a population and because such testing can lead to invasive downstream biopsies and aggressive treatment that is associated with a high risk of permanent side effects (e.g. impotence, incontinence). Almost all professional societies (American Cancer Society, American Urologic Association, American College of Physicians, United States Preventive Services Task Force) advocate that patients receive education and complete an informed decision-making discussion with their medical providers about the pros and cons of the PSA test, as well as their personal preferences, before proceeding with this test. Unfortunately, despite these recommendations, there is seldom sufficient time during clinic visits to achieve this goal.