View clinical trials related to Prostate Cancer.
Filter by:This small study will investigate the feasibility of using multi-parametric MRI to introduce and support adaptive radiotherapy treatments for high-risk prostate cancer.
Of the 50,000 prostate cancers that occur each year in France, more than half will benefit from curative radiotherapy, alone or in combination with hormone therapy from 6 months to 3 years depending on the stage of the disease. At present, there are few ways to predict the response to this irradiation. Evaluating the early response of tumor tissue to irradiation could predict the final response to treatment. It is difficult to offer biopsies during treatment for reasons of patient comfort. This is why this study consists in analysing transcriptomic and protein responses (immunohistochemistry) to irradiation on ex vivo prostate explants. These explants will be irradiated after culture and the transcriptional and immunohistochemical changes analysed before and after irradiation to determine an early tumor tissue response profile to irradiation.
This study is designed as a randomized control trial which intends to determine if transperineal (TP) targeted biopsy is not inferior to transrectal (TR) targeted biopsy for diagnosis of clinically significant prostate cancer while comparing post-procedural infection rates between the two techniques. The study will also look to compare patient reported pain scores related to the procedure, rates of other minor complications (e.g. bleeding, urinary retention) and procedure time. The expected sample size at The Ottawa Hospital is 360 men.
This phase II trial studies the side how well hyperpolarized carbon C 13 pyruvate (HP C-13 pyruvate) magnetic resonance imaging (MRI) works in monitoring patients with prostate cancer on active surveillance who have not received treatment. Diagnostic procedures, such as MRI, may help visualize HP C-13 pyruvate uptake and breakdown in tumor cells.
Study objective: Cohort 1: To quantify the uptake of 68GaNOTA-Anti-HER2 VHH1 in local or distant metastases from breast carcinoma patients and to assess repeatability of the image-based HER2 quantification. The uptake will be correlated to results obtained via biopsy of the same lesion, if available. Cohort 2: To report on uptake of 68GaNOTA-Anti-HER2 VHH1 in different cancer types that might overexpress HER2 Cohort 3: To explore the feasibility and added value of 68GaNOTA-Anti-HER2 VHH1 in the neoadjuvant setting of HER2-expressing breast carcinoma Time schedule: After inclusion, patients will be injected intravenously with 37 - 185 MBq 68GaNOTA-Anti-HER2 VHH1 with a total mass of up to 200 μg NOTA-Anti-HER2 VHH1. Serum and plasma samples will be collected at injection. At 90 min after injection, a total body PET/CT scan will be performed. Patients in cohort 1 will undergo a second PET/CT procedure, identical to the first procedure, within 8 days, with a minimal interval of 18h and maximal interval of 8 days. Patients in cohort 2 can undergo an optional 18F-FDG-PET/CT within 21 days prior to or after 68GaNOTA-Anti-HER2 VHH1. In cohort 1 and 2, based on PET/CT images, up to 2 lesions will be selected for optional image-guided biopsy. Biopsy will be performed max. 28 days after the last PET/CT. Plasma and serum samples will be obtained between 60 and 365 days after first injection for patients in cohort 1 and between 42 and 365 days after first injection for patients in cohort 2. Patients in cohort 3 will undergo 68GaNOTA-Anti-HER2 VHH1 PET/CT prior to the start of neoadjuvant treatment and again after the last cycle of neoadjuvant treatment but prior to surgery. Plasma and serum samples will be obtained before each injection and between 42 and 365 days after the last injection.
Patients with a biochemical recurrence after radical prostatectomy for moderate- or high- risk prostate cancer are randomly assigned to hypofractionated, accelerated high dose radiation therapy group (65 Gy, 26 fractions) and a control group of standard treatment group (66 Gy, 33 fractions). The criteria for stratification at randomization include 1) risk groups, 2) androgen deprivation therapy, and 3) PSA before salvage radiation therapy, which affect biochemical recurrence. It is expected that hypofractionated, accelerated high dose radiation therapy will have a superiority in terms of biochemical control to conventional radiation therapy, and the present study would like to confirm this. In addition, we aimed to evaluate and compare the toxicity and quality of life index of two radiation therapy regimens.
Prostate gland is a clinically important male sexual organ and its main function is for the production of semen. Globally, it is the second most common cancer in men globally and is also the fifth cancer cause for death in male. Despite the improvement in the understanding of prostate cancer, the current usage of serum prostate specific antigen (PSA) as a diagnostic marker is still not ideal. Many patients with elevated PSA and then subjected to prostate biopsy were found to have no prostate cancer. Therefore, there is a need to discover new biological markers to improve the current situation in diagnosis and also management of prostate cancer. From the earlier small-scale studies, urinary spermine levels have been shown to correlate well with prostate cancer diagnosis and cancer aggressiveness. Due to its nature, it could provide a more convenient and non-invasive method for detecting prostate cancer. The purpose of this study was to collect urine samples to study the role of potential new urine diagnostic markers (including Spermine and others) for prostate cancer diagnosis.
Our objective in this study is to identify an optimal ultrasound spectroscopy parameter that can be used as an early predictor of pathological complete or partial response in men with prostate cancer and men and women with rectum and head and neck cancers receiving treatment radiotherapy. We have previously demonstrated that high-frequency ultrasound and spectroscopy, and recently conventional-frequency ultrasound and spectroscopy may be used to detect cell death in vitro, in situ and in vivo. The method can detect different forms of cell death and has been demonstrated to be sensitive to apoptotic, necrotic and mitotic cell death. The main goal, as described above, is to select the best ultrasound spectroscopy parameter to use as an early predictor of pathological complete response
Prostate cancer (PC) is highly prevalent worldwide and is currently the 3rd most commonly diagnosed prostate cancer in Hong Kong male population with more than 1600 new cases diagnosed per year. However, the current use of serum PSA as a diagnostic marker is unsatisfactory. Many patients has elevated serum PSA is actually due to other causes and also the level of serum PSA do not correlate with the staging and grading of prostate cancer. Moreover, the current risk stratification system, based on PSA, clinical staging and Gleason score is of only limited value, as a significant proportion of patients with high-risk nonmetastatic PC have incurable disease due to locally advanced and/or occult metastasis,, whilst others with indolent disease may never suffer morbidity or mortality from PC. Therefore, in order to improve patient management and outcome, there is a need to identify newer markers and also validate some potential markers in Chinese population.
Under the prostate cancer screening protocol of the project 'Prevention of Obesity-related Cancers', men with elevated PSA with higher prostate cancer risk (PSA 4-10 ng/mL with high Prostate Health Index (PHI) ≥35, or PSA>10 ng/mL) will be offered a prostate biopsy. In the current study, we would like to offer all screened men with elevated PSA in the range of 4-50 ng/mL a biparametric non-contrast MRI prostate (screening protocol) for any suspicious lesion in the prostate. If there is MRI lesion seen, additional targeted biopsies can be performed on top of the standard systematic prostate biopsies. It has been shown in a clinical Caucasian cohort that doing MRI-targeted biopsies resulted in improved detection of clinically significant prostate cancer compared with standard systematic biopsies. In this study investigators would like to investigate the benefits of adding MRI prostate and MRI-targeted biopsy in the diagnostic pathway for prostate cancer in a screened cohort of Chinese men at risk of prostate cancer.