Active clinical trials for "Prostatic Neoplasms"

The purpose of this study is to collect additional safety information on abiraterone acetate administered with prednisone to patients with metastatic castration-resistant prostate cancer (CRPC).

The purpose of this study is to continue follow-up on patients who were treated on the study called TAX 3505 (MSK IRB #07-101). The sponsor of this study, has decided to end the study early, before all patients have completed all planned follow-up tests. As a result, the investigators do not yet know whether hormonal therapy alone, or in combination with docetaxel, is better at preventing prostate cancer recurrence in patients who had a rising PSA after prostatectomy. This study will continue following patients according to a schedule that is similar to that found in the TAX 3503 (MSK IRB #07-101) study in order to answer that question. This study is known as a registry study. The patients' will not receive any treatment as part of this study. Instead, they will be asked to have a blood test performed once every 12 weeks.

When evaluating prostate cancer patients for recurrent disease, computed tomography (CT), and magnetic resonance imaging (MRI) are both highly sensitive methods for detecting lymph nodes, but are not specific as to whether the lymph nodes are malignant or benign. While positron emission tomography (PET) utilizing radioactive glucose (FDG) has revolutionized staging, restaging, and monitoring response to therapy in many prevalent cancers such as breast, colorectal, esophageal, head and neck, lung, lymphoma, and melanoma, findings with prostate cancer have proven less sensitive because prostate cancer has a lower avidity for glucose. A newer PET isotope, utilizing acetate that is incorporated into the cell membrane of rapidly proliferating cells, has shown greater sensitivity than FDG in detecting prostate cancer. This study will assess the clinical effectiveness of utilizing [11C]Acetate PET scans in identifying recurrent prostate cancer.

The incidence of prostate cancer is rising however the number of deaths from prostate cancer is stable. Meaning the investigators are diagnosing many men with prostate cancer that will not impact on their life. The rise in incidence is mainly due to increased use of the blood test Prostate Specific Antigen (PSA), as a screening test. Currently men suspected of having prostate cancer, identified by a raised PSA undergo trans-rectal ultrasound guided prostate biopsy (TRUS biopsy). Many men have this test unnecessarily, only 1/3 being diagnosed with prostate cancer. TRUS biopsy is problematic as it is random and performed blind-the operator does not know where the cancer is. Thus many low-risk cancers that do not need treating are diagnosed and many high risk cancers are missed or incorrectly classified. So, men with a negative biopsy or those with low risk disease are usually advised to undergo another TRUS biopsy. An imaging test is needed that could help men and their doctors decide whether the biopsy is a true reflection of what is inside his prostate. The investigators will test the role of two imaging tests. The first, multi-parametric magnetic resonance imaging (mp-MRI) uses magnetic signals from the body to form images. The second, Prostate HistoScanning™ (PHS) uses sound-waves. The investigators will compare the results of these tests with a detailed biopsy map-transperineal template prostate mapping biopsy (which is currently the best way to find out what is in the prostate but requires multiple biopsies to be taken under general anaesthetic. Eligible men will have undergone one or more TRUS biopsies and who have been advised to have further tests on as part of standard of care. They will be recruited from UCLH referral letters and clinics. The investigators aim is to see if either of these tests can confidently rule out the presence of clinically important disease.

Prostate cancer is the most common cancer among men in Sweden. During investigation of suspected cancer transrectal ultrasound with needle biopsies from prostate leeds to diagnosis. The most common technique today is side-fire where the needle enter the prostate in angle from the probe. In end-fire technique the needle enters the prostate at tip of probe without angle. The difference in techniques side-fire vs. end-fire affects the possibility to reach the ventral and apical aspects of prostate. Today´s standard is at least five cores from each side of the prostate at first biopsy. If first sample is negative there will usually be another urological exam and a first re-biopsy. The study aim to compare these two methods in cancer detection. The investigators' hypothesis is that when using end-fire technique at first re-biopsy, investigators find more cancers compared to side-fire. Patients are prospectively randomized into two groups, both assessing 12 core biopsies according to study protocol. Primary endpoint is cancer detection. Data will be collected about patient age, PSA-level, prostate size, digital rectal exam, hypoechogenic zones and length of cancers.

The investigators propose to conduct Carbon-11 Sodium Acetate PET/CT studies. The purpose of our study is to evaluate the impact of Carbon-11 Sodium Acetate PET/CT studies on patient management in patients with prostate cancer.

The general hypothesis put forward in this study is that the degree of cohesion (agreement) in the relationship, or dyadic adjustment affects a patient's quality of life and clinical course during the first few critical months following diagnosis and the introduction of treatment. The level of cohesion in the relationship is certainly not the only parameter associated with changes in the quality of life. Other factors must also be investigated such as level of education, circumstances surrounding the diagnosis (new diagnosis or relapse), management (single therapy or adjuvant therapy), the level of physical activity, the patient's age and the presence of functional disorders, etc.

The purpose of this research study is investigate a new and validated urine test which predicts the likelihood of high grade prostate cancer on an initial prostate biopsy The current protocol has two objectives; one is to further assess and evaluate the performance of the urine test in men already scheduled for initial prostate needle biopsy (cohort (group) 1) and two, to evaluate how the results of the urine test influences the decision process for determining whether to perform a prostate biopsy (cohort (group) 2).

The rationale for investigating the hypothesis that there is an association between erectile dysfunction (ED) and the subsequent development of prostate cancer is based on three assumptions: 1) baseline ED is common in most if not all of the cross-sectional studies in men with prostate cancer; 2) the development of ED and prostate cancer may have certain shared common risk factors; and 3) the use of testosterone for the treatment of ED has been suspected to be associated with prostate cancer development. Controversy exists over whether men with ED have an increased risk of subsequent prostate cancer. Few studies have evaluated the risk of developing prostate cancer for men with ED. The investigators, therefore, conducted a population-based longitudinal study with eight years' follow-up to examine this association and to evaluate the magnitude of the risk.

The investigators hypothesize software-based fusion/navigation will be accurate to within 3 mm of the reference standard of EM fusion. The investigators aim to evaluate the accuracy of prostate US/MRI software-based fusion/navigation technology.