View clinical trials related to Prostate Cancer.
Filter by:The problem is the lack of data from randomized controlled trials to throw light on the ALA-prostate cancer issue. There is therefore a need to acquire evidence from a randomized controlled study to illustrate the effect of ALA on a surrogate marker for prostate cancer, namely prostate specific antigen (PSA). Demonstration that atrial fibrillation recurrence was reduced after cardioversion and that there was no adverse effect of 1 years of ALA feeding on PSA would go a considerable way to providing the required evidence that ALA in the human diet has no adverse effect on the prostate and so allow its use for cardiovascular risk reduction. hypothesis: The effect of ALA on PSA levels over time will be no different from the control, so providing supportive data for the view that ALA is not cancer promoting.
The purpose of this study is to determine the substantial equivalence of the Ablatherm high intensity focused ultrasound (HIFU) as compared to cryotherapy for the treatment of low risk, localized prostate cancer.
The overall aim of this trial, which is called STAMPEDE, is to assess novel approaches for the treatment of men with prostate cancer who are starting long-term ADT for the first time, termed hormone-naïve prostate cancer. This trial aims to see if we can improve the way in which prostate cancer is currently managed, either by adding new treatments to the standard approach or by modifying the type of hormone therapy aiming to improve quality-of-life by reducing the side effects of treatment. Each new treatment approach is compared against a control arm receiving the current standard treatments. We aim to identify treatment strategies that enable men to live longer, or as long but with an improved quality-of-life, as well as offering value for money for the health service. Since opening to accrual in Oct-2005, the trial has tested many ways of treating prostate cancer and some results are now already known. More than 10,000 men will join the trial with answers becoming available throughout the trial. New patients joining the trial from Protocol version 17.0 onwards (activated in December 2018) may be eligible to join one of two treatment comparisons, metformin (treatment group K; the "metformin comparison") and transdermal oestradiol (treatment group L; the "transdermal oestradiol comparison"). A computer program will be used to allocate which treatment each participant receives, using a chance process. Summary of the research arms in STAMPEDE trial platform Summary of research treatment groups currently open to recruitment (June 2017) 1. Metformin (Arm K): This anti-diabetic medication is proposed to have both anti-cancer effects and may help prevent the adverse metabolic effects of long-term ADT. STAMPEDE will investigate whether adding metformin to the current standard-of-care for non-diabetic men can improve all-cause survival. 2. Transdermal oestradiol (Arm L): This is an alternative form of hormone treatment which has been shown to suppress testosterone as effectively as standard ADT and avoid some of the side-effects. It may also help to avoid the adverse metabolic effects and fatigue and therefore improve overall quality of life compared with standard forms of ADT. STAMPEDE will investigate whether transdermal oestradiol can treat the cancer as well as current standard forms of ADT. 3. Control group (Arm A): Patients allocated to this group receive the current standard-of-care ADT +/- RT +/- docetaxel.
The objective of this study is to use as a reference the 36-month duration of hormonal therapy according to the European Organization for Research of the Treatment of Cancer (EORTC protocol 22863) : namely one-month of total androgen blockade followed by a luteinizing hormone releasing hormone (LHRH) agonist, all for three years, combined with pelvic and prostate irradiation; this arm is currently considered to be a standard for high-risk prostate cancers. The proposed study intends to challenge the duration of hormonal therapy and verify whether the five-year outcomes in favour of combined treatment in regard to survival (79% versus 62%) and local control (85% versus 48%) can be transposed for hormonal therapy that is half as long, namely 18 months, with the possibility of hormone salvage therapy in the event of biochemical and/or clinical failure (local, regional, or distant); this applies to both arms. The proposed study will compare survival in the two groups and evaluate in each one the total duration of initial hormonal therapy, followed by initial hormonal therapy combined with salvage hormonal therapy, the duration of salvage hormonal therapy until hormonal therapy resistance, and the side effects of this hormonal therapy, with everything being related to an assessment of the quality of life of these patients.
The hypothesis of the proposed study would be that, due to the six months of total androgen blockade, which would include neoadjuvant hormonal therapy for four months and concomitant hormonal therapy for two months with irradiation, the investigators could reduce local failure rates for these two dosage levels, namely 70 Gy and 76 Gy. Since increasing the dose to the prostate also seems to reduce local relapse rates, the results of the two hormonal therapy groups would be compared with the results of prostate irradiation at doses of 76 Gy. This study would verify the possibility of compensating a six Gy dosage increase of radiation therapy with six months of hormonal therapy between the 70 Gy and 76 Gy groups who received hormonal therapy, and also match these results with a dose escalation to the prostate of 76 Gy. In the future, this could result in more therapeutic choices, such as reducing the doses of radiation therapy and, consequently, its related complications, if hormonal therapy proves to be beneficial; or rather, to continue in the direction of dose escalation for this intermediate-risk patient group, everything being correlated to the side effects of hormonal therapy and irradiation.
Interventions to Improve Shared Decision-Making: Prostate Cancer Screening is a prospective study of educational interventions to improve the interaction of physicians and their patients about prostate cancer screening. Educational material is provided in primary care practices using either standard paper information or a novel web-based interactive curriculum that explores the risks and benefits of screening measures for prostate cancer for older men. The impact of the intervention on shared decision-making with both actual and standardized patients will be assessed.
The purpose of this study is to investigate gene expression profiles and biologic features of prostate tissue and how they relate to prostate cancer development and growth.
The purpose of this trial is to compare two similar treatments for patients diagnosed with prostate cancer. The two treatment arms being compared are: (Standard Arm) hormone therapy, which will prevent the production of the male hormone, testosterone, by the testicles, and pelvic external beam radiation therapy (EBRT) followed by a high-dose, conformal EBRT boost versus (Investigational Arm) hormone therapy and pelvic EBRT followed by a brachytherapy boost (implantation of radioactive iodine sources or "seeds" into the prostate). The hypothesis of this trial is that more patients may experience 5 year actuarial freedom from biochemical recurrence of their prostate cancer following treatment with the investigational arm. Biochemical failure is declared on the date when the post treatment prostate specific antigen (PSA) is > 2 ng/mL above the lowest level previously recorded.
This study enrolled men with prostate cancer who had failed hormone therapy (as shown by rising prostate-specific antigen [PSA] levels) and who were about to start a new line of chemotherapy. Blood was drawn prior to the patient receiving chemotherapy and then monthly thereafter for up to 18 months or until disease progression, whichever occurred first. The blood was tested to find circulating tumor cells (CTC) and to count them. The circulating tumor cell levels were studied in relation to the patient's overall survival. Serum was also collected for PSA testing, and additional blood samples were drawn to test for circulating endothelial cells and RNA was isolated for future gene expression testing.
Helical tomotherapy is being used to treat the prostate gland, local rates of spread and regional lymph nodes whilst sparing gross structures. The radiation to the gross disease in the prostate is hypofractionated and dose escalated. Magnetic resonance spectroscopic imaging (MRSI) is incorporated into pre- and post-treatment evaluation.