Active clinical trials for "Prostatic Neoplasms"

Ga-68 PSMA-11 PET/CT is known as useful method for localizing recurred tumor lesions in prostate cancer patients with biochemical recurrence [elevated serum prostate specific antigen (PSA) after radical prostatectomy]. The recent digital PET/CT which is known to show better resolution and sensitivity than analogue PET/CT may have better performance for detecting early small recurred tumor lesions. This study is intended to compare the diagnostic performance (detection rate and positive predictive value) of Ga-68 PSMA-11 PET/CT using analogue PET/CT scanner and digital PET/CT scanner in same patients who had biochemical recurrence of prostate cancer.

Analyze, through an online questionnaire, the knowledge and practice about the prevention and detection of prostate cancer in male employees of a pharmaceutical company.

This is a prospective biomarker study on prostate cancer patients receiving Radium 223 as standard of care. Participants will take part in this research study because they have chosen Radium 223 treatment for their prostate cancer that has spread to the bone and causing pain. Investigators want to find out if a blood test performed before and after the Radium 223 treatment will help to understand how prostate cancer cells react to this therapy. In this pilot study, researchers want to find out if Radium 223 given as part of standard treatment for prostate cancer can decrease the number of circulating prostate cancer cells. Radium 223 kills prostate cancer cells by damaging their DNA. Other than looking at the changes in the number of circulating prostate cancer cells before and after Radium 223, researchers would also like to look at the changes in a DNA damage marker, called gamma H2AX, in the circulating prostate cancer cells before and after treatment with Radium 223. Assessing the DNA damage marker gamma H2AX is investigational. It is performed in the same tube of blood that is used for assessing the changes in the number of circulating prostate cancer cells.

The objective is to report outcomes,including grade ≥2 overall late rectal and urinary toxicity and biochemical control rates in patients treated with IMRT (70 gy, 74 Gy and 80 Gy)

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 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.

We intend to validate 18F-DCFPyL for imaging patients with metastatic, castrate-resistant PCa (CRPC), so that it may be used to full advantage in supporting existing and emerging therapies for a spectrum of patients suffering from PCa. In this study we will image patients with CRPC undergoing second-line anti-androgen therapy (enzalutamide or abiraterone) using 18F-DCFPyL-PET/CT for detection of metastases and therapeutic monitoring, with correlation to standard-of-care conventional imaging modalities (CIM) (CT, bone scan) and clinical follow-up.

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.

A specific scale allowing the measure of anxiety of patients with protate cancer has been designed and validated but the French version needs to be validated. This study aims at validating the French translation of this scale.

Investigators plan to use modified TTMB technology to puncture prostate of participants suspected prostate cancer, especially those with the first negative biopsy , but having a rising PSA.Then, Investigators will simulate the spatial distribution of prostate cancer in patients with positive biopsy before radical prostatectomy by way of the TPS software system . And after the radical prostatectomy ,Investigators will simulate the spatial distribution with the help of large tissue slice technique to compare with preoperative simulation ,which to verify the two simulations are consistent.