Active clinical trials for "Prostatic Neoplasms"

Introduction: Prostate cancer (PCa) is the most commonly detected cancer in men and is the second leading cause of cancer death. Differences in race and ethnicity have been shown to have differences in PCa incidence, detection, and outcomes. Current prostate cancer screening involves prostatic specific antigen (PSA) which is a nonspecific protein marker (aka kallikrein) that can often leads to unnecessary biopsies (up to 74% benign biopsies) and clinical overdiagnosis (with up to 22% clinically insignificant cancer). Recently more sophisticated tests have been developed for PCa screening in the United States such as the Prostate Health Index (PHI) and the 4k (kallikrein) score, as well as clinical models that use information from the patient clinical history. However, these tests utilize limited serum protein assays and none of the established screening protocols utilize genetic variables to help account for the likely inherited risks as seen in different ethnicities. A recent Swedish, prospective, population-based study, published in the Lancet Oncology, developed a unique multivariable biopsy outcome prediction model within a Nordic population of nearly 60,000 men. This model, the Stockholm3, which incorporated plasma protein markers, germline DNA SNPs as well as clinical variables, was shown to be capable of reducing the number of biopsies by 44% compared to PSA while maintaining adequate sensitivity for detection of PCa. It is unknown whether an approach developed in Sweden that incorporates protein markers, genetics, clinical variables, and genetic ancestry would be beneficial in a racially diverse cohort. Hypothesis: The investigators hypothesize that, a prospectively studied multiethnic cohort of men with the Stockholm3 test will identify unique and common risk factors that improve prostate cancer detection. Aim: To assess the performance of the Stockholm3 test as compared to PSA and to identify unique features associated with PCa in Black/African American (n=500), Asian (n=500), White/Caucasian Hispanic (n=500), and White/Caucasian Non-Hispanic (n=500) men. Methods: The investigators propose a prospectively identified cohort with participating institutions which have screened positive to undergo a prostate biopsy to have a retrospective analysis the Stockholm3 test and ancestry markers. Within this cohort the investigators will examine several predetermined risk factors to investigate their relationship to prostate cancer. This blood sample will be tested for quantitative levels of serum protein markers and DNA will be extracted and will be tested for germline mutations as defined by the Stockholm3 test and other ancestry informative markers. Results from the study will be presented in such a way that no individual information will be disclosed.

Prostate biopsy is the definitive test to establish the diagnosis of prostate cancer. The standard of care biopsy needles do not predictably obtain full cores of tissue and what tissue obtained is often fragmented, making pathologic review a challenge. The VMCore Biopsy System has a geometry in the tip of its biopsy needles that capture more tissue in a single sample. This study is to compare the characteristics of tissue captured by either standard of care needles and the VMCore needle.

The purpose of this study is to see if positron emission tomography/ magnetic resonance imaging (PET/MRI) can be used to monitor the effectiveness of cancer treatment using an investigational radioactive drug called [Ga-68]PSMA.

To evaluate the diagnostic performance and cost-effectiveness of the MRI-driven diagnostic pathway of prostate cancer, with upfront individual multivariate risk stratification.

After failure on docetaxel, which has been the standard first line therapy for patients with metastatic castration-resistant prostate cancer (mCRPC), several treatment options are currently available. In retrospective studies, resistance has been described to two of the treatment options, enzalutamide and abiraterone, when a splice variant of the Androgen Receptor (AR-V7) is present on circulating tumor cells (CTCs). The investigators hypothesize that patients with AR-V7 positive CTCs do have a meaningful response to cabazitaxel.

The purpose of this study is to determine the effectiveness of whole-body diffusion-weighted magnetic resonance imaging (WB-DW- MRI) in detecting metastases by comparing the results with those from choline-positron emission tomography-computed tomography (choline-PET/CT) in patients with metastatic/oligometastatic prostate cancer. Patients with this disease profile who could benefit from treatment with stereotactic body radiation therapy (SBRT) were selected and their responses to these techniques were rated.

The purpose of this study is to evaluate the effectiveness of enzalutamide in patients with metastatic castration resistant prostate cancer (mCRPC) in the clinical practice setting as measured by time to treatment failure defined as the time from baseline (treatment initiation) to treatment discontinuation of enzalutamide for any reason including disease progression, skeletal related events, treatment toxicity, patient preference, or death.

The purpose of this study is to test whether Degarelix is associated with less endothelial dysfunction (an intermediate in the development of cardiac disease) and cardiovascular biomarkers compared to LHRH agonists.

The purpose of this study is to document prostate cancer (PC) management including diagnosis, prognosis, treatment, and care in real-world practice.

Merge the data of ultrasound with that of the anatomical and functional MRI is necessary since the high dose rate Curietherapy is carried out under ultrasound guidance. The investigators will recruit prostate cancer patients to evaluate the quality of the data, their sensitivity to exam conditions (patient position, volume of endorectal probe, gold grains implanted before intensity modulated radiotherapy , IMRT) and to merge data from different sources with the purpose of estimating the opportunities of integration treatment plan for Curietherapy broadband. The nuclear magnetic resonance imaging provides precise anatomical study, but also provides access to a functional approach to the tumor mapping of water diffusion coefficient (DW-MRI), for dynamic imaging with injection contrast agent (DCE-MRI) and finally by spectroscopic imaging (IRMS). This multimodality imaging project is part of a multidisciplinary context, involving close collaboration between clinicians, medical physicists, and physicists of the teams participating in this project (Institut Gustave Roussy and U2R2M-CIERM hospital Kremlin-Bicetre).