
Retrospective Evaluation of Commercial Spacers in Prostate Cancer Patients
Prostate CancerAssessment of efficacy and safety of implantable spacers when used to reduce the radiation dose delivered to the organs at risk in prostate cancer patients undergoing radiotherapy.

North Carolina Prostate Cancer Comparative Effectiveness & Survivorship Study (NC ProCESS)
Cancer of ProstateCancer of the Prostate2 moreNC ProCESS is a cohort of patients from diverse backgrounds diagnosed with early prostate cancer, who were enrolled from January 2011-June 2013. These patients were recruited throughout North Carolina, and also in partnership with institutions across the country. Patients enrolled before they start treatment, and are then followed prospectively through treatment and then afterwards. This observational study collects information on quality of life, cancer control, and health care received inclusive of treatment and management of subsequent effects including complications and recurrence. The objective of this study is to examine comparative outcomes among different modern prostate cancer treatment options in this cohort of patients.

Long-Term Specified Drug Use-Results Survey for Xtandi Capsule
Castration-resistant Prostate CancerThe purpose of this study is to confirm the long term safety and efficacy of enzalutamide in patients.

Non-interventional Study With Ra-223 Dichloride Assessing Overall Survival and Effectiveness Predictors...
Prostatic NeoplasmsCastration-ResistantThis observational prospective single arm cohort study is designed to assess overall survival, symptomatic skeletal event free survival and quality of life of metastatic Castration Resistant Prostate Cancer (mCRPC) patients receiving Radium- 223 under real life conditions. In addition, time to next tumor treatment (TTNT), mobility, quality of life and selfcare, independence in activities of daily living and safety will be assessed.

Relationship of Mitochondrial Enzymes With Cancer Related Fatigue
Prostate CancerProject Study: Pilot Human Study Specific Aims: 1. describe levels of mitochondrial respiratory enzymes 2. examine relationships between levels of mitochondrial enzymes, fatigue, and health-related quality of life; and 3. compare levels of mitochondrial enzymes in men with a clinically-significant change in fatigue from those with no change in fatigue. Significance of Study: Cancer related fatigue is a common side effect of cancer. Cancer related fatigue is poorly understood. Many different biological mechanisms have been theorized, including mitochondrial dysfunction. Self-reported descriptions of reduced energy and muscle weakness lend support for a possible relationship of cancer related fatigue to mitochondrial dysfunction. Main Research Variables: Mitochondrial Enzymes, Cancer related fatigue, and health related quality of life Design: Descriptive, longitudinal study Sample/Setting: Men with non-metastatic prostate-cancer who are scheduled to receive radiation therapy Methods: Questionnaires, mouth swabs and blood will be collected at four study visits: prior to treatment, midpoint of treatment, completion of treatment and within 90 days of finishing treatment. Four mouth swabs will be collected per participant at each study visit. Implications for Practice: Understanding the role of mitochondrial enzymes in cancer related fatigue has major clinical implications in the development of targeted interventions and in providing specific knowledge for patients and their families to make informed treatment decisions.

Radiologically Guided Biopsies of mCRPC
Prostate CancerThe purpose of this study is to better understand how cancer treatment may affect cancer cells. The research will involve genetic, molecular, cellular, and immunologic experiments using blood and tumor specimens. It is hoped that the information gained from these studies will lead to a greater understanding of castrate-resistant prostate cancer and potentially, improvements in cancer treatment. This is a tissue collection protocol requiring image-guided biopsies of metastatic, castration-resistant prostate cancer (mCRPC). The investigators will focus on enrolling patients with metastatic CRPC who have progressed while receiving novel AR-targeted therapeutics such as abiraterone and enzalutamide. This population of patients was selected because resistance develops relatively rapidly following potent inhibitors of AR activity and the mechanisms of resistance have to be better understood. Without comprehensive analysis of mCRPC tumor, the investigators will never gain a full understanding of the biology driving resistance in human disease and developing rational co-targeting approaches will not be possible.

Targeted Prostate Biopsy Using a Novel MRI-Ultrasound Fusion Device
Prostate CancerThe purpose of this study is to evaluate the effectiveness of Focal-Fusion Bx at detecting clinically significant prostate cancer in a standard clinical environment.

Prostate Cancer E-Health-Tutorial
Prostate CancerIn a participatory process involving urologists and former patients, the project team has developed an online information system ("tutorial") for patients with localized prostate cancer. In this field test, relevant outcomes are measured and the tutorial will be tested for its clinical applicability.

ClariCore Optical Biopsy System Used in TRUS (Trans-Rectal Ultrasound)-Guided Prostrate Biopsy
Cellular DiagnosisProstate CancerThe purpose of the study is to collect information on prostrate biopsy tissue for use in developing a method determining the difference in normal and cancerous prostrate tissue using the ClariCore System.

Androgen-Deprivation Therapy and Cardiovascular Risk: A Nationwide Population-based Cohort Study...
Prostate CancerAndrogen-deprivation TherapyThe research focuses on the safety profile of androgen-deprivation therapy (ADT). The hypothesis is that safety issue, as regards to cardiovascular risk, is not homogenous across the spectrum of androgen-deprivation therapy modalities. Our study will encompass all ADT modalities including intermittent ADT. ADT is a cornerstone therapy in prostate cancer management. Decisions about ADT should weigh improvements in cancer-specific outcomes against potential increased risks for cardiovascular diseases. The potential for harm from ADT should be more precisely defined according to the type of ADT. Those potential risks underscore the importance of better understanding benefits of ADT, especially in contexts where data are still lacking.ADT is also indicated in sexually deviant behavior.