Prostate cancer
Clinical trials Your doctor may ask you whether you would like to take part in a clinical trial. This is a research study conducted with patients in order to (ClinicalTrials.gov, 2017) : • Test new treatments. • Look at new combinations of existing treatments or change the way they are given to make them more effective or reduce side effects. • Compare the effectiveness of drugs used to control symptoms. • Find out how cancer treatments work. Clinical trials help to improve knowledge about cancer and develop new treatments, and there can be many benefits to taking part. You would be carefully monitored during and after the study and the new treatment may offer benefits over existing therapies. It’s important to bear in mind, however, that some new treatments are found not to be as good as existing treatments or to have side effects that outweigh the benefits (ClinicalTrials.gov, 2017).
Clinical trials help to improve knowledge about
diseases and develop new treatments – there can be many benefits to taking part
Several new drugs for the treatment of prostate cancer are now entering clinical trials, including immunotherapy agents, which stimulate the body’s immune system to fight cancer cells. Pembrolizumab, an immunotherapy drug which blocks a protein called programmed cell death protein 1 (PD-1) on the surface of some immune cells, has shown encouraging results in some patients with metastatic prostate cancer (Hansen et al., 2018; de Bono et al., 2018). Olaparib is a drug that blocks the actions of an enzyme involved in DNA repair. Olaparib is already used to treat some types of cancer, especially those that have mutations in genes called BRCA1 and BRCA2. Olaparib has shown encouraging results in patients with metastatic prostate cancer, both on its own and in combination with abiraterone (Mateo et al., 2015; Clarke et al., 2018). You have the right to accept or refuse participation in a clinical trial without any consequences for the quality of your treatment. If your doctor does not ask you about taking part in a clinical trial and you want to find out more about this option, you can ask your doctor if there is a trial for your type of cancer taking place nearby (ClinicalTrials.gov, 2017).
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