Active clinical trials for "Prostatic Neoplasms"

Because the diagnostic criteria for prostate cancer are different in the peripheral and the transition zone, prostate segmentation is needed for any computer-aided diagnosis system aimed at characterizing prostate lesions on magnetic resonance (MR) images. Manual segmentation is time consuming and may differ between radiologists with different expertise. We developed and trained a convolutional neural network algorithm for segmenting the whole prostate, the transition zone and the anterior fibromuscular stroma on T2-weighted images of 787 MRIs from an existing prospective radiological pathological correlation database containing prostate MRI of patients treated by prostatectomy between 2008 and 2014 (CLARA-P database). The purpose of this study is to validate this algorithm on an independent cohort of patients.

This small study will investigate the feasibility of using multi-parametric MRI to introduce and support adaptive radiotherapy treatments for high-risk prostate cancer.

Impedance-based analysis could provide an adequate response to the need to identify a safe and reliable tool alternative to bioptic diagnosis. Patients who are candidates for prostate biopsy as suffering from urinary symptoms accompanied by clinical suspicions such as high total PSA value and / or presence of prostate nodule and / or evidence of obvious lesion to available imaging methods will be subjected to impedance measurement. Aim of this study is to be able to structure a bivariate analysis of the distribution of impedances detected in patients with neoplasia in order to detect test median reference values.

Multiparametric magnetic resonance imaging (mpMRI) is now widely used to risk stratify men with a suspicion of prostate cancer and identify suspicious regions for biopsy. Advanced MRI techniques have emerged which seek to improve this characterisation and could predict biopsy results non-invasively before men undergo biopsy. Before these techniques are translated clinically, robust histological and clinical validation is required. This study aims to clinically validate advanced MRI techniques in a cohort of men suspected with prostate cancer. Histological analysis of men undergoing biopsy, +/- prostatectomy will be used for biological validation of VERDICT; Vascular and Extracellular Restricted Diffusion for Cytometry in Tumours and Luminal Water imaging (LWI). In particular, prostatectomy specimens will be processed using 3-D printed patient-specific moulds to allow for accurate MRI and histology mapping.

A single-center cohort study to identify uni- and multivariate associations between marker gene expression and clinico-pathological parameters for the detection of robust and novel prognostic tools in prostate cancer

Early detection of prostrate cancer and development of metastases. The research will attempt to match the SCM test (structuredness of the cytoplasmic matrix) in lymphocytes as an early cancer detection test using Florescent Activated Cell Sorting (FACS) as a replacement for the CellScan instrument. The test is based on measurement of cellular changes in response to the specific prostate antigen, PSA.

The purpose of the study is to determine whether radiotherapy improves cancer control and overall survival among patients with Castration resistant prostate cancer.

The purpose of this study is to determine, in patients entered on the National Cancer Institute of Canada (NCIC)-PR.7 trial of intermittent versus continuous androgen ablation, whether the rates of osteoporosis, fractures, and alteration in body composition are reduced by intermittent androgen ablation. There will be two groups of patients: A cross-sectional group of 150 patients registered in PR.7 prior to January 1, 2002, randomized between intermittent androgen suppression (IAS) and continuous androgen suppression (CAS) (75 from each group). Patients who have definite bone metastases are excluded from this study. Biochemical failure does not exclude the patient. A longitudinal study of 150 newly accrued patients randomized between IAS and CAS (75 from each group). These patients will have baseline evaluation of bone loss and body composition, longitudinal monitoring and follow-up on an annual basis for patients on CAS and at the end of each "off cycle" of IAS. Patients taking bisphosphonates are excluded from this study.