Active clinical trials for "Prostatic Neoplasms"

Prostate cancer (PC) is the most common cancer among men and one quarter of diagnosed PC are metastatic at the time of diagnosis. Accurate staging is paramount as the stage is the most important factor when treatment decisions are made. The stage is also the single most important prognostic factor. Currently, traditional imaging methods for detection of PC metastasis, including bone scan (BS) and contrast enhanced whole-body computer tomography (CT), are rather inaccurate. Respectively, novel imaging techniques are evolving and novel imaging modalities are emerging in PC diagnostics and staging, but their clinical relevance is unclear and lacking prospective studies comparing traditional imaging with novel imaging. This prospective single-institutional study compares the diagnostic accuracy of novel imaging modalities to traditional imaging modalities aiming to find the most appropriate staging modality in high-risk PC at the time of initial staging.

In this study, the investigator aim to evaluate the role of PMSA-PET guided SABR on progression free survival (PFS) in patients with oligoprogressive mCRPC with Enzalutamide. The potential improvement in PFS with SABR while continuing the initial-responding Enzalutamide is potentially benefiting to patients in terms of overall disease control.

Prostate cancer is the most common cancer in men in the United States. Suppression of male hormone levels by using GnRH agonist ("hormone blocking therapy") for a few years is routinely used to treat prostate cancer. While the treatment is very effective, it decreases muscle mass and increases fat mass. This results in a decrease in insulin action (also called insulin resistance) and increases the likelihood of diabetes. It may also contribute to risk of developing heart disease. The investigators propose to conduct a trial that will:- study the mechanisms through which GnRH agonists cause insulin resistance. Evaluate a treatment that can decrease insulin resistance. This is a randomized, placebo controlled, double-blind trial. Forty-four men with prostate cancer will be recruited in the trial before starting GnRH agonist therapy. Participants will undergo metabolic studies to evaluate insulin action (called insulin clamp), abdominal fat tissue biopsy to study insulin action at the cellular level and blood draws. The study volunteers will then be given either a placebo tablet or pioglitazone tablet to take once a day for the next six months. The metabolic tests, blood test and fat tissue biopsy will be obtained again at the end of the study.

Patients will receive a single dose of 68Ga-PSMA-11 and undergo a PET/CT or PET/MRI imaging study.

This study is being done to establish the mechanisms underlying insulin resistance (reduced insulin action that can lead to high blood sugar and maybe diabetes) in patients undergoing androgen deprivation therapy (ADT) for prostate carcinoma as well as to investigate the role of pioglitazone therapy in reduction/ reversal of that insulin resistance

Gallium-68 prostate-specific-membrane-antigen (Ga-68 PSMA) PET/CT is being used in Prostate cancer imaging. In the present study, we aimed to evaluate the efficacy and safety of robotic arm-assisted Ga-68 PSMA PET/CT-guided transgluteal prostatic biopsy. Seventy-eight participants with a clinical suspicion of PCa were recruited from January 2019 to September 2020. All the patients underwent whole-body Ga-68 PSMA PET/CT. The patients with PSMA-avid lesion in the prostate underwent robotic arm-assisted PET-guided transgluteal biopsies. The degree of pain during the procedure, procedure-related complications and histopathology were evaluated.

Background: - Prostate cancer is the most common cancer type among men. Some prostate cancers respond to hormonal therapy. However, some cell characteristics of other prostate cancers cause it not to respond as well to these therapies. Researchers want to see if gadoxetate, a contrast agent used to help identify damaged liver tissue, can help tell these types of prostate cancer apart. It may be able to identify if a man has a type of prostate cancer for which hormone therapy may not work as well. Objectives: - To see if gadoxetate can help identify different types of prostate cancers during imaging studies. Eligibility: - Men at least 18 years of age who have prostate cancer. Participants will be having surgery to either remove the prostate or take tumor tissue samples. Design: Participants will be screened with a physical exam and medical history. Blood samples will be collected. Participants will have a magnetic resonance imaging (MRI) scan of the lower torso. They will receive gadoxetate during the MRI scan. Participants who have surgery will have a sample of their tumor cells collected. Those who have a biopsy will provide cells from this biopsy for study. Treatment will not be provided as part of this study.

This is a single arm, open label study of up to 24 prostate cancer patients scheduled for prostatectomy and/or pelvic lymph node dissection. Patients receive a single IV dose of 99mTc-MIP-1404 (study drug) followed by SPECT/CT scan 3-6 hours after injection. As standard of care, patients will undergo prostatectomy and/or pelvic lymph node dissection (PLND) within two weeks of study drug dosing. 99mTc-MIP-1404 image data will be evaluated for visible uptake and compared with histopathology.

The purpose of this study is to see if a new diagnostic research agent named 89Zr-DFO-MSTP2109A can show prostate cancer tumors on a PET scan; as well as see how long 89Zr-DFO-MSTP2109A lasts in the blood when given in small amounts. DFO-MSTP2109A is an antibody that works against STEAP1 - found on the surface of prostate cancer cells. Attached to the DFO-MSTP2109A is a radioactive material called 89ZR, which allows it to be imaged by a PET scanner. The results of this study may help researchers know whether 89Zr-DFO-MSTP2109A can be used as a diagnostic agent for finding prostate cancer that have STEAP1 on its surface with a PET scanner. The reason why identifying STEAP1 on prostate cancer cells is that new therapies are being developed to target STEAP1 prostate cancer cells.

Radiation and androgen deprivation is a common modality for patients with localized prostate cancer. Unfortunately for patients with intermediate to high risk prostate cancer incomplete tumor eradication and subsequent relapse occurs in 50-75% of patients. The Src pathway appears to be integral to the pathobiology of prostate cancer and may be fundamental to radioresistance.