Active clinical trials for "Prostatic Neoplasms"

Objective: To test the hypothesis that the shorter half-life of Pd-103 versus I-125, will increase the rate of tumor eradication. Research design A total of 600 patients with AJC clinical stage T1c-T2a prostatic carcinoma (Gleason grade 2 to 6, PSA 4 to 10 ng/ml) will be randomized to implantation with I-125 (160 Gy) versus Pd-103 (115 Gy).

The objective of this multi-center clinical study is to determine the association of the PCA3 Score with prostate biopsy outcome and validate the assay's performance characteristics in men with previous negative prostate biopsies. An elevated PCA3 Score is thought to be associated with an increased likelihood of positive biopsy. The results of this study are intended to be used for regulatory filings for use as an in vitro diagnostic test.

The study involves use of a device called an endomicroscope to obtain high resolution images of microscopic structures during robot-assisted prostate cancer surgery. This feasibility study is largely descriptive, and will use endomicroscopy to document the cellular and architectural appearance of tissue during minimally invasive prostate surgery for later comparison with features seen upon conventional histopathological examination of biopsies or resection specimens.

To investigate the sensitivity of the [18F]fluoroethylcholine (FEC) Positron-Emission-Tomography/ Magnetic Resonance Imaging (PET/MRI) method in tumour detection and location (side assignment, encapsulation, invasion of the seminal vesicle) and detection of affected lymph nodes, and to compare these with presently used detection procedures (needle biopsy, digital rectal examination, transrectal ultrasound, and pre-therapeutic assessment), with a view to finding out whether the [18F]fluoroethylcholine PET/MRI method is comparable to, or superior to, the established method. Postoperative histology served as the standard of reference.

Preoperative detection of lymph node metastases in patients with prostate or bladder cancer is crucial for selection of the appropriate treatment strategy (surgery, androgen deprivation with/or without radiation therapy or chemotherapy) and thus for patient prognosis. Until now CT or MRI have been the modalities of choice for preoperative staging procedures. However, current morphological assessment of lymph nodes based on size and shape is unable to detect smaller metastases or liable to give false positive results on lymph nodes with reactive hyperplasia. We hypothesize that USPIO-enhanced MRI combined with DW-MRI will be able to detect pelvic lymph node metastases preoperatively with high sensitivity and specificity.

See where the dye-like material (FACBC) goes in your body and how long it stays in your body. See how much of the dye-like material is picked up by your tumor Compare the FACBC pictures with other pictures (such as FDG PET scan) that were obtained as part of your standard imaging evaluation.

Multiphoton microscopy (MPM) has been shown to be able to image tissue at a cellular level. Our project will initially evaluated the ability of MPM imaging to distinguish normal bladder urothelium from atypical and malignant urothelium in the ex vivo setting. After development of sufficient criteria, we plan to develop an endoscopic bladder probe that will provide a non-invasive means to image the interior of the bladder at the cellular level, which would provide direct evidence of the presence of tumor without a biopsy. After exhibiting usefulness of MPM imaging for bladder cancer, we will look at other organs beginning with the colon.

This is an National Institute of Health (NIH) funded, investigator-initiated, single center prospective study to investigate the ability of the new dual-modality positron emission tomography and computed tomography (PET-CT) imaging systems in comparison to conventional imaging methods in assessing treatment response in men with metastatic prostate cancer. The investigators will enroll two groups of men with stage IV metastatic prostate cancer, each group will be comprised of 160 patients. Group I: men with newly diagnosed hormone-responsive measurable metastatic disease who will be treated with androgen-ablation therapy Group II: men with newly-developed hormone-refractory measurable metastatic disease who will be treated with chemotherapy and /or other therapies for hormone refractory disease To be eligible, men in either group must have rising serum prostate specific antigen (PSA) level - defined as at least 2 consecutive rises in PSA documented over a reference value (1st measure within 28 days prior to recruitment). The first rising PSA (2nd measure) should be taken at least 14 days after the reference value. A confirmatory PSA measure (3rd measure) obtained at least 14 days after the 2nd measure is required and must be greater than the 2nd measure. Additionally, patients must have a serum PSA concentration of at least 2 ng/mL in addition to increasing PSA to be eligible. Patients will be followed with the PET-CT at 4, 8, and 12 months after the initiation of androgen ablation therapy (Group I) or chemotherapy (Group II).

The purpose of this study is to determine if adding hyperbaric oxygen therapy, a therapy that delivers oxygen under slight pressure, to a drug treatment of PDE5I (such as Viagra, Levitra, Cialis)for men following surgery for prostate cancer will result in more men being able to continue to have erections.

The purpose of this study is to compare metabolic and stress responses in combined general/epidural anesthesia in geriatric cancer patients.