Active clinical trials for "Prostatic Neoplasms"

Single-institution retrospective analysis for predictive factors of prostate cancer patients presenting with isolated or limited lymph node (LN) recurrence (1-3 lesions) on F-Ccholine PET-CT (CholPET) treated with SBRT between January 2010 and July 2015.

Measurement of Free PSA ratio in patients after definitive radical treatment for prostate cancer, and assessment of whether post-treatment free PSA ratio can function as a biomarker for advanced disease in prostate cancer patients.

Active Surveillance (AS) is a treatment option in patients with favorable risk prostate cancer. According to the current guidelines patients are monitored by prostate specific antigen (PSA) testing (every 3 months) and regular re-biopsies. Due to histological reclassification and/or patient noncompliance a high number of patients discontinue AS. Nonetheless, because of an increasing number of diagnosed early stage tumors overdiagnosis and overtreatment of patients has become a major clinical problem. Therefore AS is a promising and important tool for patients with low and intermediate risk prostate cancer. Multiparametric MRI (mp-MRI) in combination with radiomics analysis, MR-guided biopsies, and molecular markers are promising tools to optimize patient selection and observation during AS. This prospective, single arm, multicenter phase II study evaluates mp-MRI, radiomics, MR-guided biopsies and molecular markers for AS with the primary endpoint of reducing discontinuation based on histologic reclassification. At the end of this study the results may allow defining a MRI-based pathway to identify and monitor patients suitable for AS supported by radiomics. Thus, the high rate of discontinuation due to misclassification at initial diagnosis will be reduced. Additionally, this strategy will allow reducing over-treatment of clinically insignificant PCA, and on the other hand, increasing early treatment of higher-risk disease. Monitoring by mp-MRI will reduce the number of prostate biopsies and cores per patient during AS, and thus increase the patient compliance. Finally, such a strategy will reduce the economic burden of treating insignificant prostate cancer.

Post implant dosimetry is an essential part of quality assurance after permanent seed prostate brachytherapy. CT imaging is the standard of assessment but due to contouring uncertainties, MR-CT fusion is preferred. This is not always available due to financial restrictions. This study explores the possibility of post implant US-CT fusion to improve contouring accuracy and potentially replace the use of MR-CT fusion.

This is an ethnographic study to investigate the competences and preferences in everyday living of men with prostate cancer, using participant observation and semi-structured interviews. The study will work as the need assessment part of the emil project, which aims to design, develop, implement and evaluate a digital service to support a healthy lifestyle among men with prostate cancer.

This study will be performed in robotic assisted laparoscopic radical prostatectomy patients in Cerrahpasa Medical Faculty Monoblock Operating Room. Since robot-assisted laparoscopic radical prostatectomy is a surgical procedure which requires long-term mechanical ventilation, excessive trendelenburg position (30-45 °) and pneumoperitoneum; these interventions may lead to respiratory complications such as ventilation difficulty and aeration loss in patients. Nowadays, lung ultrasonography has been used in anesthesia practice and intensive care units in order to determine lung aeration loss. In this study, the investigators aimed to compare the possible aeration loss in lung parenchyma during pressure controlled ventilation and volume controlled ventilation which are frequently used in anesthesia practice in patients undergoing robotic radical prostatectomy.

PSMA (Prostate Specific Membrane Antigen) is overexpressed in prostate cancer cells. The 68Ga-PSMA PET / CT test, using small molecules that bind to the PSMA protein and undergo intercellularization, is a test that has been shown to be more sensitive and specific than other conventional and molecular imaging modalities (CT, MRI, bone mapping, Disease in prostate cancer patients and its consequences often change therapeutic decisions in patients. In light of this, the examination of the health basket of the State of Israel was introduced to the staging of patients at moderate or high risk, as well as to the extent of the disease in patients with biochemical failure. However, testing with 68Ga-PSMA has several limitations, resulting from the use of 68 Ga, which can be overcome by switching to fluorine-18 (18F) -based materials: A. The generation capacity of the generator is low and therefore limits the number of tests that can be performed at a given time. In contrast, 18F is produced in cyclotron. B. 68 Ga has a short half-life of 68 minutes, which is a logical consequence of its availability to remote medical centers from the place of production, the time of the test and the patient's comfort, and the possibility of subsequent mappings. The half-life of 18F is 110 minutes. third. 18F has less energy than 68Ga (0.65 MEV vs. 1.9) and, as a result, a better maximum resolution that would potentially enable the demonstration of smaller lymph nodes involved in the disease. Among the fluorine-18 (18F) materials selected for clinical application is 18F-PSMA-1007, both because the uptake is higher in the tumor than in the background, and because its removal is mainly the pathobiliary and only a small fraction of the material is released in the urine. This is another advantage of 18F-PSMA-1007 over 68Ga-PSMA, potentially enabling a better demonstration of disease sites in the pelvis, without significant absorption of the bladder material. To date, accumulated promising experience, in Germany, in imaging with 18F-PSMA-1007. In one published case, 17 degenerative disease sites were detected in one patient with biochemical failure 9 years after undergoing radical prostatectomy, which was not demonstrated by other imaging modalities, including CT, MRI and bone mapping

The aim of the study is the evaluation of the possible role of PSMA PET-CT in early detection of prostate cancer, reducing rate of unnecessary prostate biopsies, and in cases of prostate cancer, correct staging of the disease and corresponding management.

Prospective study to evaluate the value of uPAR-targeted PET/MR scan using the tracer 68Ga-NOTA-AE105 in patients with newly diagnosed prostate cancer

The primary objective of the study is the matching of sensitivity, specificity, the negative predicate value and the positive predictive value of Contrast-Enhanced Ultrasound (CEUS), Shear Wave Elastography (SWE) and the combination to detect clinically significant prostate carcinoma foki. Conventional ultrasound is insufficient to safely display prostate carcinoma. Therefore, other imaging agents are recently added to improve the detection of tumor foci. These include innovative imaging ultrasound methods and multiparametric MRI.