Active clinical trials for "Prostatic Neoplasms"

This study will examine biomarkers involved in osteomimicry in bone metastases and circulating tumor cells (CTCs) of men with mCRPC before and during therapy with the bone-targeting radiopharmaceutical radium-223. This study will also examine the bio-distribution of radium-223 in bone and bone metastases of men with mCRPC. The investigators hypothesize that bone metastases and CTCs in men with mCRPC will commonly express markers of EMT/plasticity and osteomimicry, not just in the normal surrounding osteoblastic stroma but in the epithelial tumor cells themselves and that radium-223 will target both of these compartments including the more mesenchymal/osteoblastic tumor cells and the surrounding osteoblasts in the active bone microenvironment, with a relative sparing of normal bone and bone marrow.

In this open randomized controlled trial, we seek to study whether prostate cancer screening using multiparametric prostate magnetic resonance imaging (mpMRI) improves the detection rate of clinically-significant prostate cancer (defined as Gleason score ≥7 on prostate biopsy) compared with prostate cancer screening using prostate-specific antigen (PSA). The current paradigm of prostate cancer screening relies upon an initial PSA blood test, with subsequent investigations driven by the serum PSA level. This model has proven highly controversial due to the inability of PSA level to discern between indolent and aggressive forms of prostate cancer. As a result, numerous government-sponsored bodies have recommended against PSA screening. Evidence suggests that prostate cancer screening has led to an increased proportion of men being diagnosed with potentially curable prostate cancer. However, due to the inability of the PSA level to accurately distinguish patients with indolent and lethal forms of prostate cancer, it has led to a significant rate of over-diagnosis of indolent disease. Magnetic resonance imaging has been gaining an increasingly large role in the management of patients with clinically-localized prostate cancer including diagnosis in patients with abnormal PSA levels, monitoring of patients on active surveillance and staging prior to definitive interventions. MRI-based prostate cancer risk assessment has been shown to better distinguish between clinically-significant and insignificant tumors than PSA test. Therefore, a randomized controlled trial of MRI-based prostate cancer screening and PSA-based prostate cancer screening is warranted.

Prostate cancer patients for whom a F-18-FCH PET/CT is indicated. Ga-68-NODAGA-MJ9 is a new PET/CT radiotracer aiming at giving complementary information : more precise images and early localisation of recurrence to standard imaging

This study will work towards understanding the changes in your body (metabolism) that develop with treatment in prostate cancer. Hormonal therapies such as ADT often result in detrimental changes in body composition, including lean tissue loss and fat gains, compared to those patients receiving radiation therapy. These changes in body composition are linked to risk of diabetes and cardiovascular disease in survivorship. The investigators will be evaluating 50 patients to primarily examine the changes in metabolism, nutrition, physical function and body composition at the end of treatment, 6 weeks and 6 months following the end of treatment. Patients will continue to be followed every 6 months for up to 5 years following the end of treatment. The investigators findings will provide a new perspective for future work and novel approaches in the treatment of prostate cancer.

RATIONALE: Diagnostic procedures, such as dynamic contrast-enhanced magnetic resonance imaging or DCE-MRI and diffusion-weighted imaging or DWI, may provide images of prostate cancer or any cancer that remains after biopsy. PURPOSE: This trial studies repeated DCE-MRI and DWI in patients diagnosed with prostate cancer.

The purpose of this study is to determine if denosumab is non-inferior to zoledronic acid (Zometa®) in the treatment of bone metastases in men with hormone-refractory prostate cancer

RATIONALE: Collecting and storing samples of blood and urine from patients with cancer to study in the laboratory may help doctors learn more about changes that may occur in DNA and identify biomarkers related to cancer. PURPOSE: This laboratory study is looking at biomarkers in patients undergoing transrectal ultrasound prostate biopsy.

Prostate cancer is the most common type of cancer among men. It is also the second leading cause of cancer-related death among men. Two screening tests are available to try to detect prostate cancer early - the digital rectal examination (DRE) and the prostate specific antigen (PSA) blood test. Unfortunately, physicians aren't sure whether or not these two screening tests help save lives, and there's a lot of controversy about how to use them. Recently, a major government committee (the U.S. Preventive Services Task Force) recommended that physicians discuss the risks and potential benefits of prostate cancer screening with their patients, and allow patients to make their own decision. Because of the controversies, many physicians currently don't discuss prostate cancer with their patients. The problem is that it takes time and effort to have these discussions, and the information is complicated. A lot of patients have trouble understanding it, especially if they have a limited educational background or trouble reading. When patients have difficulty obtaining, understanding, and acting on basic health information, we say that they have "low health literacy." Other researchers have shown that patients with low health literacy don't know as much about cancer screening and are less likely to get screened for various cancers. They also tend to be timid about discussing things with their doctor, and often go along with what the doctor says, rather than taking an active role in the decision making. In 2003, under IRB approval, we conducted a study with 2 goals: 1) to encourage patients to talk to their doctor about prostate cancer screening, and 2) to learn more about the impact of low health literacy on these conversations. To promote conversation, we used two handouts, given to patients in the waiting room before they saw the doctor. The first was a patient education handout about prostate cancer screening, written in very simple terms with useful illustrations. The second was a handout that simply encouraged patients to talk to their doctor about prostate cancer. Patients got one of the two handouts, or a nutritional handout that served as a control. After they saw their doctor, a research assistant briefly interviewed the patient to find out whether or not prostate cancer screening was discussed. We also measured the patients' health literacy skills, and asked a few other questions about their decision to get screened for prostate cancer.

The purpose of this study is to help doctors and patients make better decisions about prostate cancer treatment. This research is being done because we do not know how patient preferences for health states related to prostate cancer affect the final treatment decision.

RATIONALE: Questionnaires that assess symptoms caused by cancer and cancer therapy may help improve the ability to plan treatment for patients with invasive cancer to help them live longer and more comfortably. PURPOSE: This clinical trial is studying symptoms caused by cancer and cancer therapy in patients with invasive breast, lung, prostate, or colorectal cancer.