Brachytherapy is a method of treating low-risk prostate cancer: a small amount of cancer in a small area of the gland. It involves implanting tiny radioactive seeds in the prostate. Conventionally, the seeds are implanted throughout the entire prostate gland. This approach to treatment is an alternative to surgery to remove the prostate, but may also be associated with urinary, sexual, and bowel side effects.
Focal therapy is a form of brachytherapy in which the seeds are only implanted in or near the parts of the prostate that contain cancer cells. It may have fewer side effects because it does not target the entire prostate gland. It is an option for men with low-risk prostate cancer who do not want surgery or conventional whole-gland brachytherapy, but also do not want “watchful waiting” (giving no treatment and just monitoring the cancer’s growth).
In this study, researchers want to assess the effectiveness of focal brachytherapy in men with low-risk prostate cancer, determine what side effects it may cause, and evaluate the effect of the treatment on patients’ quality of life.