Active clinical trials for "Prostatic Neoplasms"

This is a clinical trial of a new treatment for prostate cancer that is a type of vaccine that could be a new way to treat cancer. A vaccine that could alert the immune system to the presence of cancer cells in the body may enable the immune system to target and kill those cells effectively. This vaccine is intended to work by making the immune system kill cells that have a special protein (called 5T4) that is present on the surface of cancer cells. The vaccine is made up of two recombinant viruses ("ChAdOx1"- chimpanzee adenovirus Ox1 and "MVA" - modified vaccinia Ankara) that have been designed to produce the 5T4 protein and have been modified so that they are weakened and cannot reproduce themselves within the body like normal viruses. Once injected into the body, these viruses make the 5T4 protein and help the body's immune system to learn to target this protein and destroy cancer cells. This vaccine will be used in combination with the immunotherapy drug called nivolumab which is an anti-PD-1 (Programmed Death protein-1) monoclonal antibody. This is a molecule that releases the brakes on the immune system and helps the immune system to kill cancer cells more efficiently. Nivolumab as a monotherapy was approved for treatment of several tumour types but not for the prostate cancer. This study will evaluate the safety and efficacy of ChAdOx1-MVA 5T4 vaccine in combination with nivolumab in low and intermediate risk prostate cancer patients who have elected to have their prostate removed and in patients with advanced metastatic prostate cancer.

This trial is studying the effects and safety in treating patients from five different centers with local prostate cancer, employing Composite Steep-pulse(High-frequency irreversible electroporation) Treatment Apparatus. This device could cause cell irreversible electroporation, which leading necrosis of tumor cells. It also has the ability to prevent nerve,vessel, urethral and capsule unnecessary injury beside the ablation area. Composite Steep-pulse Treatment Apparatus will be used in patients who pass inclusion/exclusion criteria. Safety, quality of life, and histopathological analysis of prostate speciem will be evaluated in each study patients.

This study evaluates the rate of radiological disease progression with the new 2nd generation positron emission tomography (PET) radiopharmaceutical, 18F-DCFPyL, in patients with metastatic castration (mCRPC) and non-metastatic (nmCRPC) castration resistant prostate cancer who have evidence of biochemical (PSA) disease progression without evidence of radiological disease progression on conventional standard radiologic testing (99mTc-methylene diphosphonate bone scan and CT).

This is a single dose, randomized, single blind, parallel group study to evaluate the testosterone suppressive effect in healthy male volunteers of a novel leuprolide acetate 3.75mg depot vs market reference leuprolide acetate 3.75mg depot. The safety, tolerability and the pharmacokinetic properties of the investigational drug and the control drug will also be assessed.

Currently radiotherapy for prostate cancer is directed using scans or X-Rays, which ensures the radiotherapy treatment 'hits the target' and avoids the healthy tissues around the prostate. There are two current methods of radiotherapy image guidance- either placing small gold seeds into the prostate and taking XRays or doing a small CT scan of the prostate region each day. Neither of these methods are perfect and have drawbacks and inaccuracies. The best way to see the prostate is with an MRI scan - this shows the edge of the prostate much more clearly and can even show the area of most aggressive cancer within the prostate. Shortly the investigators will have the ability to use a new machine - an MR-Linac - which combines an MR scanner and a radiotherapy machine. As well as giving the investigators a clearer picture, and enabling the investigators to keep watching the prostate while the participant has their treatment (not currently possible with standard machines) this new machine will also allow the investigators to change the radiotherapy plan if they can see that the internal anatomy has shifted day to day. Currently the investigators have to give the same radiotherapy plan each day, which means the investigators have to treat a 'safety margin' around to prostate to allow for these day to day anatomy changes (e.g. rectal filling). The aim of this study is to assess the technical feasibility of delivering radical radiotherapy for prostate cancer using the MR-Linac, including the feasibility of changing the radiotherapy plan on a daily basis to mirror internal anatomy changes. The investigators will recruit 30 patients with localised prostate cancer who need radiotherapy. The team will deliver the same dose in the same number of days i.e. the same as standard radiotherapy. Side effects will also be assessed by physicians and using patient questionnaires.

This study is investigating the safety and efficacy of a vaccine directed against prostate tumor cells. The researchers are interested in evaluating the safety and tolerability of the vaccine, and the effects of the vaccine on survivability, time to measurable disease, prostate-specific antigen (PSA) level in the blood, and the immune response to the vaccine. Eligible patients include those with recurrent prostate cancer as shown by elevated levels of PSA, although there is no evidence of tumors that are measurable by imaging studies. In addition, to be eligible patients must have prostate cancer that either has not been treated by hormonal therapy or is not responsive to hormonal therapy.

High-dose rate brachytherapy (HDR-BT) is an advanced technology theorized to be more advantageous than LDR-BT and External Beam Radiotherapy (EBRT), to the patient himself, and in terms of resource allocation. Studies of HDR-BT monotherapy have encouraging results in terms of biochemical control, patient survival and toxicity, but there are still certain limitations that preclude recommending HDR-BT monotherapy outside the setting of a clinical trial. The primary endpoint of this study is to evaluate the safety, tolerance and impact on quality of life (QoL) of the BT-HDR 19Gy administered in single fraction in patients with low and intermediate risk prostate cancer. Secondary endpoint is to measure the efficacy, in terms of cancer control and satisfaction of the patients undergoing the experimental treatment. Forty nine patients will be recruited for the experimental procedure Quality of Life, tolerance, gastrointestinal and genitourinary toxicity will be assessed using standardized procedures and scales. Patient satisfaction with the procedure will be appraised using five-category predetermined Likert scale questions. Two different types of intermediate analyses will be performed: with 15 and 30 recruited patients. The experimental treatment tested in this study is very innovative. Since prostate cancer is the most frequent cancer in men in Spain, this trial results are very likely to have a major impact on the standard therapy for prostate cancer in our National Health Service, allowing for a higher number of Hospitals within our country and other countries starting protocols of HDR BT 19Gy in single fraction.

This study is being performed to investigate if the application of Arista absorbable hemostat (AH)®, a product approved to stop surgical bleeding, can prevent lymphoceles. Lymphoceles are collections of lymphatic fluid which can occur after a lymph node dissection for cancer. These fluid collections can become symptomatic in some patients. Arista would be applied to one side of the pelvis after a pelvic lymph node dissection, to see if this decreases the number of postoperative lymph fluid collections seen on a computed tomography (CT) scan after surgery

Agents that inhibit cholesterol synthesis are being investigated in cancers dependent upon cholesterogenesis. Red yeast rice (RYR), is a reddish-purple fermented rice, containing statins which are known to inhibit cholesterol synthesis. Laboratory studies have also shown that RYR has direct effects on androgen dependent and androgen independent prostate cancer cells, inhibiting their growth. It is thought that RYR may have clinical benefit in those subjects with localized prostate cancer who have chosen to be managed by active surveillance.

The purpose of this study is to determine the clinical efficacy and toxicity of High-dose rate (HDR) brachytherapy as monotherapy for the treatment of low risk and intermediate risk prostate cancer.